current song as server side event

This reverts commit d1f0d5c64c.

.air.toml

@@ -0,0 +1,31 @@
+root = "."
+tmp_dir = "tmp"
+
+[build]
+cmd = "go build -o ./tmp/main ."
+bin = "tmp/main"
+full_bin = "./tmp/main web -c config.example.yaml"
+include_ext = ["go", "tpl", "tmpl", "html", "js"]
+exclude_dir = ["tmp", "vendor"]
+include_dir = []
+exclude_file = []
+exclude_regex = ["_test.go"]
+exclude_unchanged = true
+follow_symlink = true
+log = "air.log"
+delay = 1000 # ms
+stop_on_error = true
+send_interrupt = false
+kill_delay = 500 # ms
+
+[log]
+time = false
+
+[color]
+main = "magenta"
+watcher = "cyan"
+build = "yellow"
+runner = "green"
+
+[misc]
+clean_on_exit = true

.drone.yml

@@ -1,6 +1,8 @@
 ---
 kind: pipeline
 name: default
+node:
+  runner: hetzner
 
 steps:
   - name: tags
@@ -9,44 +11,154 @@ steps:
       - git fetch --tags
 
   - name: lint
-    image: golangci/golangci-lint:latest
+    image: golangci/golangci-lint:v1.42.0
     commands:
-      - make lint
+      - make install-tools
+      - make lint-go
+      - make lint-buf
+    depends_on:
+      - tags
+
+  - name: lint-js
+    image: alpine:3.14
+    commands:
+      - >
+        apk add
+        make
+        nodejs
+        npm
+      - >
+        npm install
+        eslint
+        prettier
+        eslint-plugin-prettier
+        eslint-config-prettier
+      - export PATH=$PWD/node_modules/.bin:$PATH
+      - make lint-js
+      - make clean
     depends_on:
       - tags
 
   - name: test
-    image: golang:latest
+    image: golang:1.17
+    pull: always
     commands:
       - make test
     depends_on:
       - tags
 
-  - name: build
-    image: goreleaser/goreleaser:v0.162.0
+  - name: create-image
+    image: docker:latest
+    volumes:
+      - name: dockersock
+        path: /var/run
+      - name: swap
+        path: /SWAP
+    commands:
+      - apk add --no-cache openssh-client curl
+      - mkdir ~/.ssh
+      - curl https://raw.githubusercontent.com/xsteadfastx/docker-qemu-alpine/main/ssh -o ~/.ssh/id_rsa
+      - chmod 600 ~/.ssh/id_rsa
+      - wget -O /usr/local/bin/don https://git.xsfx.dev/attachments/8f8f4dbb-8254-448a-a549-552f8b96cb26
+      - chmod +x /usr/local/bin/don
+      - don -t 15m -r 15s -c "ssh  -o StrictHostKeyChecking=no -o ConnectTimeout=10 root@qemu-alpine"
+      - cat scripts/rpi-image-test/build.sh | ssh -i ssh -o StrictHostKeyChecking=no root@qemu-alpine
+      - ssh -i ssh -o StrictHostKeyChecking=no root@qemu-alpine poweroff
+      - ls -lah /SWAP
+    depends_on:
+      - lint
+      - lint-js
+      - test
+
+  - name: prepare-image
+    image: golang:1.17
+    volumes:
+      - name: dockersock
+        path: /var/run
+    commands:
+      - (cd /tmp; go install -v github.com/goreleaser/goreleaser@v0.169.0)
+      - make test-integration
+    depends_on:
+      - lint
+      - lint-js
+      - test
+      - create-image
+
+  - name: create-torrent
+    image: golang:1.16-alpine
+    volumes:
+      - name: swap
+        path: /SWAP
+    commands:
+      - apk add zip
+      - (cd /tmp; go get -v github.com/cenkalti/rain@v1.6.4)
+      - cd /SWAP
+      - zip 2021-05-07-raspios-buster-armhf-lite.zip 2021-05-07-raspios-buster-armhf-lite.img
+      - rain torrent create -o schnutibox.torrent -f 2021-05-07-raspios-buster-armhf-lite.zip
+      - ls -lah
+    depends_on:
+      - prepare-image
+
+  - name: build
+    image: goreleaser/goreleaser:v0.176.0
     commands:
-      - (cd /tmp; go get -u github.com/go-bindata/go-bindata/...)
       - make build
     depends_on:
-      - tags
       - lint
+      - lint-js
       - test
+      - prepare-image
     when:
       event:
         exclude:
           - tag
 
   - name: release
-    image: goreleaser/goreleaser:v0.162.0
+    image: goreleaser/goreleaser:v0.176.0
+    volumes:
+      - name: dockersock
+        path: /var/run
     environment:
       GITHUB_TOKEN:
         from_secret: github_token
+      DOCKER_USERNAME:
+        from_secret: docker_username
+      DOCKER_PASSWORD:
+        from_secret: github_token
+      DOCKER_REGISTRY: ghcr.io
     commands:
+      - sleep 5
+      - >
+        echo $DOCKER_PASSWORD |
+        docker login $DOCKER_REGISTRY -u $DOCKER_USERNAME --password-stdin
       - goreleaser release --rm-dist
     depends_on:
-      - tags
-      - lint
       - test
+      - lint
+      - lint-js
     when:
       event:
         - tag
+
+services:
+  - name: docker
+    image: docker:dind
+    privileged: true
+    volumes:
+      - name: dockersock
+        path: /var/run
+      - name: swap
+        path: /SWAP
+
+  - name: qemu-alpine
+    image: ghcr.io/xsteadfastx/qemu-alpine:latest
+    volumes:
+      - name: swap
+        path: /SWAP
+
+volumes:
+  - name: dockersock
+    temp: {}
+
+  - name: swap
+    temp: {}

.eslintrc.json

@@ -0,0 +1,6 @@
+{
+  "env": {
+    "browser": true
+  },
+  "extends": ["eslint:recommended", "prettier"]
+}

.gitignore

@@ -1,3 +1,6 @@
 config.y*
 dist/
 .envrc
+tmp/*
+node_modules/*
+package*

.goreleaser.yml

@@ -18,9 +18,9 @@ builds:
       - "-s"
       - "-w"
       - "-extldflags '-static'"
-      - "-X go.xsfx.dev/cmd.version={{.Version}}"
-      - "-X go.xsfx.dev/cmd.commit={{.ShortCommit}}"
-      - "-X go.xsfx.dev/cmd.date={{.Date}}"
+      - "-X go.xsfx.dev/schnutibox/cmd.version={{.Version}}"
+      - "-X go.xsfx.dev/schnutibox/cmd.commit={{.ShortCommit}}"
+      - "-X go.xsfx.dev/schnutibox/cmd.date={{.Date}}"
 
 checksum:
   name_template: "checksums.txt"
@@ -35,9 +35,19 @@ changelog:
       - "^docs:"
       - "^test:"
       - "^ci:"
+      - "^dev:"
       - "happy linting"
 
 release:
   github:
     owner: xsteadfastx
     name: schnutibox
+
+dockers:
+  - dockerfile: build/package/docker/Dockerfile
+    goos: linux
+    goarch: amd64
+    image_templates:
+      - ghcr.io/xsteadfastx/schnutibox:latest
+      - ghcr.io/xsteadfastx/schnutibox:{{ .Tag }}
+      - ghcr.io/xsteadfastx/schnutibox:v{{ .Major}}

.prettierrc.json

@@ -0,0 +1 @@
+{}

Makefile

@@ -11,16 +11,30 @@ generate:
 	go generate
 
 .PHONY: lint
-lint:
-	golangci-lint run --timeout 10m --enable-all --disable=exhaustivestruct
+lint: lint-go lint-buf lint-js
+
+.PHONY: lint-go
+lint-go:
+	golangci-lint run --timeout 10m --enable-all --disable=exhaustivestruct,godox
+
+.PHONY: lint-buf
+lint-buf:
+	buf lint -v
+
+.PHONY: lint-js
+lint-js:
+	eslint assets/web/files/**.js
 
 .PHONY: test
 test:
 	go test -v -race -cover ./...
 
 .PHONY: test-integration
-test-integration: release
-	go test -v -tags=integration -timeout=120m
+test-integration: build
+	go test -v -tags=integration -timeout=240m
+
+.PHONY: test-all
+test-all: test test-integration
 
 .PHONY: readme
 readme:
@@ -33,4 +47,25 @@ tidy:
 
 .PHONY: build-image
 build-image:
-	sudo ./scripts/build.sh
+	./scripts/build.sh
+
+.PHONY: install-tools
+install-tools:
+	  @cat tools.go | grep _ | awk -F'"' '{print $$2}' | xargs -tI % go install %
+
+.PHONY: grpc-gen
+grpc-gen:
+	buf generate -v
+
+.PHONY: air
+air:
+	air
+
+.PHONY: drone-local
+drone-local:
+	drone exec --trusted --timeout 5h
+
+.PHONY: clean
+clean:
+	rm -rf node_modules
+	rm -rf package* || exit 0

README.md

@@ -1,5 +1 @@
 # schnutibox
-
-## TODO
-
-- raspi configuration script

api/proto/v1/schnutibox.proto

@@ -0,0 +1,45 @@
+syntax = "proto3";
+package schnutibox.v1;
+option go_package = "go.xsfx.dev/schnutibox/pkg/api/v1";
+import "google/api/annotations.proto";
+import "google/protobuf/duration.proto";
+
+service IdentifierService {
+  rpc Identify (IdentifyRequest) returns (IdentifyResponse) {
+    option (google.api.http) = {
+      post: "/api/v1/identify"
+      body: "*"
+    };
+  }
+}
+
+message IdentifyRequest {
+  string id = 1;
+}
+
+message IdentifyResponse {
+  string name = 1;
+  repeated string uris = 2;
+}
+
+service TimerService {
+  rpc Create(Timer) returns (Timer) {
+    option (google.api.http) = {
+      post: "/api/v1/timer"
+      body: "*"
+    };
+  }
+
+  rpc Get(TimerEmpty) returns (Timer) {
+    option (google.api.http) = {
+      get: "/api/v1/timer"
+    };
+  }
+}
+
+message Timer {
+  google.protobuf.Duration duration = 1;
+  google.protobuf.Duration current = 2;
+}
+
+message TimerEmpty {}

api/proto/vendor/google/api/annotations.proto

@@ -0,0 +1,31 @@
+// Copyright 2015 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+syntax = "proto3";
+
+package google.api;
+
+import "google/api/http.proto";
+import "google/protobuf/descriptor.proto";
+
+option go_package = "google.golang.org/genproto/googleapis/api/annotations;annotations";
+option java_multiple_files = true;
+option java_outer_classname = "AnnotationsProto";
+option java_package = "com.google.api";
+option objc_class_prefix = "GAPI";
+
+extend google.protobuf.MethodOptions {
+  // See `HttpRule`.
+  HttpRule http = 72295728;
+}

api/proto/vendor/google/api/http.proto

@@ -0,0 +1,375 @@
+// Copyright 2015 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+syntax = "proto3";
+
+package google.api;
+
+option cc_enable_arenas = true;
+option go_package = "google.golang.org/genproto/googleapis/api/annotations;annotations";
+option java_multiple_files = true;
+option java_outer_classname = "HttpProto";
+option java_package = "com.google.api";
+option objc_class_prefix = "GAPI";
+
+// Defines the HTTP configuration for an API service. It contains a list of
+// [HttpRule][google.api.HttpRule], each specifying the mapping of an RPC method
+// to one or more HTTP REST API methods.
+message Http {
+  // A list of HTTP configuration rules that apply to individual API methods.
+  //
+  // **NOTE:** All service configuration rules follow "last one wins" order.
+  repeated HttpRule rules = 1;
+
+  // When set to true, URL path parameters will be fully URI-decoded except in
+  // cases of single segment matches in reserved expansion, where "%2F" will be
+  // left encoded.
+  //
+  // The default behavior is to not decode RFC 6570 reserved characters in multi
+  // segment matches.
+  bool fully_decode_reserved_expansion = 2;
+}
+
+// # gRPC Transcoding
+//
+// gRPC Transcoding is a feature for mapping between a gRPC method and one or
+// more HTTP REST endpoints. It allows developers to build a single API service
+// that supports both gRPC APIs and REST APIs. Many systems, including [Google
+// APIs](https://github.com/googleapis/googleapis),
+// [Cloud Endpoints](https://cloud.google.com/endpoints), [gRPC
+// Gateway](https://github.com/grpc-ecosystem/grpc-gateway),
+// and [Envoy](https://github.com/envoyproxy/envoy) proxy support this feature
+// and use it for large scale production services.
+//
+// `HttpRule` defines the schema of the gRPC/REST mapping. The mapping specifies
+// how different portions of the gRPC request message are mapped to the URL
+// path, URL query parameters, and HTTP request body. It also controls how the
+// gRPC response message is mapped to the HTTP response body. `HttpRule` is
+// typically specified as an `google.api.http` annotation on the gRPC method.
+//
+// Each mapping specifies a URL path template and an HTTP method. The path
+// template may refer to one or more fields in the gRPC request message, as long
+// as each field is a non-repeated field with a primitive (non-message) type.
+// The path template controls how fields of the request message are mapped to
+// the URL path.
+//
+// Example:
+//
+//     service Messaging {
+//       rpc GetMessage(GetMessageRequest) returns (Message) {
+//         option (google.api.http) = {
+//             get: "/v1/{name=messages/*}"
+//         };
+//       }
+//     }
+//     message GetMessageRequest {
+//       string name = 1; // Mapped to URL path.
+//     }
+//     message Message {
+//       string text = 1; // The resource content.
+//     }
+//
+// This enables an HTTP REST to gRPC mapping as below:
+//
+// HTTP | gRPC
+// -----|-----
+// `GET /v1/messages/123456`  | `GetMessage(name: "messages/123456")`
+//
+// Any fields in the request message which are not bound by the path template
+// automatically become HTTP query parameters if there is no HTTP request body.
+// For example:
+//
+//     service Messaging {
+//       rpc GetMessage(GetMessageRequest) returns (Message) {
+//         option (google.api.http) = {
+//             get:"/v1/messages/{message_id}"
+//         };
+//       }
+//     }
+//     message GetMessageRequest {
+//       message SubMessage {
+//         string subfield = 1;
+//       }
+//       string message_id = 1; // Mapped to URL path.
+//       int64 revision = 2;    // Mapped to URL query parameter `revision`.
+//       SubMessage sub = 3;    // Mapped to URL query parameter `sub.subfield`.
+//     }
+//
+// This enables a HTTP JSON to RPC mapping as below:
+//
+// HTTP | gRPC
+// -----|-----
+// `GET /v1/messages/123456?revision=2&sub.subfield=foo` |
+// `GetMessage(message_id: "123456" revision: 2 sub: SubMessage(subfield:
+// "foo"))`
+//
+// Note that fields which are mapped to URL query parameters must have a
+// primitive type or a repeated primitive type or a non-repeated message type.
+// In the case of a repeated type, the parameter can be repeated in the URL
+// as `...?param=A&param=B`. In the case of a message type, each field of the
+// message is mapped to a separate parameter, such as
+// `...?foo.a=A&foo.b=B&foo.c=C`.
+//
+// For HTTP methods that allow a request body, the `body` field
+// specifies the mapping. Consider a REST update method on the
+// message resource collection:
+//
+//     service Messaging {
+//       rpc UpdateMessage(UpdateMessageRequest) returns (Message) {
+//         option (google.api.http) = {
+//           patch: "/v1/messages/{message_id}"
+//           body: "message"
+//         };
+//       }
+//     }
+//     message UpdateMessageRequest {
+//       string message_id = 1; // mapped to the URL
+//       Message message = 2;   // mapped to the body
+//     }
+//
+// The following HTTP JSON to RPC mapping is enabled, where the
+// representation of the JSON in the request body is determined by
+// protos JSON encoding:
+//
+// HTTP | gRPC
+// -----|-----
+// `PATCH /v1/messages/123456 { "text": "Hi!" }` | `UpdateMessage(message_id:
+// "123456" message { text: "Hi!" })`
+//
+// The special name `*` can be used in the body mapping to define that
+// every field not bound by the path template should be mapped to the
+// request body.  This enables the following alternative definition of
+// the update method:
+//
+//     service Messaging {
+//       rpc UpdateMessage(Message) returns (Message) {
+//         option (google.api.http) = {
+//           patch: "/v1/messages/{message_id}"
+//           body: "*"
+//         };
+//       }
+//     }
+//     message Message {
+//       string message_id = 1;
+//       string text = 2;
+//     }
+//
+//
+// The following HTTP JSON to RPC mapping is enabled:
+//
+// HTTP | gRPC
+// -----|-----
+// `PATCH /v1/messages/123456 { "text": "Hi!" }` | `UpdateMessage(message_id:
+// "123456" text: "Hi!")`
+//
+// Note that when using `*` in the body mapping, it is not possible to
+// have HTTP parameters, as all fields not bound by the path end in
+// the body. This makes this option more rarely used in practice when
+// defining REST APIs. The common usage of `*` is in custom methods
+// which don't use the URL at all for transferring data.
+//
+// It is possible to define multiple HTTP methods for one RPC by using
+// the `additional_bindings` option. Example:
+//
+//     service Messaging {
+//       rpc GetMessage(GetMessageRequest) returns (Message) {
+//         option (google.api.http) = {
+//           get: "/v1/messages/{message_id}"
+//           additional_bindings {
+//             get: "/v1/users/{user_id}/messages/{message_id}"
+//           }
+//         };
+//       }
+//     }
+//     message GetMessageRequest {
+//       string message_id = 1;
+//       string user_id = 2;
+//     }
+//
+// This enables the following two alternative HTTP JSON to RPC mappings:
+//
+// HTTP | gRPC
+// -----|-----
+// `GET /v1/messages/123456` | `GetMessage(message_id: "123456")`
+// `GET /v1/users/me/messages/123456` | `GetMessage(user_id: "me" message_id:
+// "123456")`
+//
+// ## Rules for HTTP mapping
+//
+// 1. Leaf request fields (recursive expansion nested messages in the request
+//    message) are classified into three categories:
+//    - Fields referred by the path template. They are passed via the URL path.
+//    - Fields referred by the [HttpRule.body][google.api.HttpRule.body]. They are passed via the HTTP
+//      request body.
+//    - All other fields are passed via the URL query parameters, and the
+//      parameter name is the field path in the request message. A repeated
+//      field can be represented as multiple query parameters under the same
+//      name.
+//  2. If [HttpRule.body][google.api.HttpRule.body] is "*", there is no URL query parameter, all fields
+//     are passed via URL path and HTTP request body.
+//  3. If [HttpRule.body][google.api.HttpRule.body] is omitted, there is no HTTP request body, all
+//     fields are passed via URL path and URL query parameters.
+//
+// ### Path template syntax
+//
+//     Template = "/" Segments [ Verb ] ;
+//     Segments = Segment { "/" Segment } ;
+//     Segment  = "*" | "**" | LITERAL | Variable ;
+//     Variable = "{" FieldPath [ "=" Segments ] "}" ;
+//     FieldPath = IDENT { "." IDENT } ;
+//     Verb     = ":" LITERAL ;
+//
+// The syntax `*` matches a single URL path segment. The syntax `**` matches
+// zero or more URL path segments, which must be the last part of the URL path
+// except the `Verb`.
+//
+// The syntax `Variable` matches part of the URL path as specified by its
+// template. A variable template must not contain other variables. If a variable
+// matches a single path segment, its template may be omitted, e.g. `{var}`
+// is equivalent to `{var=*}`.
+//
+// The syntax `LITERAL` matches literal text in the URL path. If the `LITERAL`
+// contains any reserved character, such characters should be percent-encoded
+// before the matching.
+//
+// If a variable contains exactly one path segment, such as `"{var}"` or
+// `"{var=*}"`, when such a variable is expanded into a URL path on the client
+// side, all characters except `[-_.~0-9a-zA-Z]` are percent-encoded. The
+// server side does the reverse decoding. Such variables show up in the
+// [Discovery
+// Document](https://developers.google.com/discovery/v1/reference/apis) as
+// `{var}`.
+//
+// If a variable contains multiple path segments, such as `"{var=foo/*}"`
+// or `"{var=**}"`, when such a variable is expanded into a URL path on the
+// client side, all characters except `[-_.~/0-9a-zA-Z]` are percent-encoded.
+// The server side does the reverse decoding, except "%2F" and "%2f" are left
+// unchanged. Such variables show up in the
+// [Discovery
+// Document](https://developers.google.com/discovery/v1/reference/apis) as
+// `{+var}`.
+//
+// ## Using gRPC API Service Configuration
+//
+// gRPC API Service Configuration (service config) is a configuration language
+// for configuring a gRPC service to become a user-facing product. The
+// service config is simply the YAML representation of the `google.api.Service`
+// proto message.
+//
+// As an alternative to annotating your proto file, you can configure gRPC
+// transcoding in your service config YAML files. You do this by specifying a
+// `HttpRule` that maps the gRPC method to a REST endpoint, achieving the same
+// effect as the proto annotation. This can be particularly useful if you
+// have a proto that is reused in multiple services. Note that any transcoding
+// specified in the service config will override any matching transcoding
+// configuration in the proto.
+//
+// Example:
+//
+//     http:
+//       rules:
+//         # Selects a gRPC method and applies HttpRule to it.
+//         - selector: example.v1.Messaging.GetMessage
+//           get: /v1/messages/{message_id}/{sub.subfield}
+//
+// ## Special notes
+//
+// When gRPC Transcoding is used to map a gRPC to JSON REST endpoints, the
+// proto to JSON conversion must follow the [proto3
+// specification](https://developers.google.com/protocol-buffers/docs/proto3#json).
+//
+// While the single segment variable follows the semantics of
+// [RFC 6570](https://tools.ietf.org/html/rfc6570) Section 3.2.2 Simple String
+// Expansion, the multi segment variable **does not** follow RFC 6570 Section
+// 3.2.3 Reserved Expansion. The reason is that the Reserved Expansion
+// does not expand special characters like `?` and `#`, which would lead
+// to invalid URLs. As the result, gRPC Transcoding uses a custom encoding
+// for multi segment variables.
+//
+// The path variables **must not** refer to any repeated or mapped field,
+// because client libraries are not capable of handling such variable expansion.
+//
+// The path variables **must not** capture the leading "/" character. The reason
+// is that the most common use case "{var}" does not capture the leading "/"
+// character. For consistency, all path variables must share the same behavior.
+//
+// Repeated message fields must not be mapped to URL query parameters, because
+// no client library can support such complicated mapping.
+//
+// If an API needs to use a JSON array for request or response body, it can map
+// the request or response body to a repeated field. However, some gRPC
+// Transcoding implementations may not support this feature.
+message HttpRule {
+  // Selects a method to which this rule applies.
+  //
+  // Refer to [selector][google.api.DocumentationRule.selector] for syntax details.
+  string selector = 1;
+
+  // Determines the URL pattern is matched by this rules. This pattern can be
+  // used with any of the {get|put|post|delete|patch} methods. A custom method
+  // can be defined using the 'custom' field.
+  oneof pattern {
+    // Maps to HTTP GET. Used for listing and getting information about
+    // resources.
+    string get = 2;
+
+    // Maps to HTTP PUT. Used for replacing a resource.
+    string put = 3;
+
+    // Maps to HTTP POST. Used for creating a resource or performing an action.
+    string post = 4;
+
+    // Maps to HTTP DELETE. Used for deleting a resource.
+    string delete = 5;
+
+    // Maps to HTTP PATCH. Used for updating a resource.
+    string patch = 6;
+
+    // The custom pattern is used for specifying an HTTP method that is not
+    // included in the `pattern` field, such as HEAD, or "*" to leave the
+    // HTTP method unspecified for this rule. The wild-card rule is useful
+    // for services that provide content to Web (HTML) clients.
+    CustomHttpPattern custom = 8;
+  }
+
+  // The name of the request field whose value is mapped to the HTTP request
+  // body, or `*` for mapping all request fields not captured by the path
+  // pattern to the HTTP body, or omitted for not having any HTTP request body.
+  //
+  // NOTE: the referred field must be present at the top-level of the request
+  // message type.
+  string body = 7;
+
+  // Optional. The name of the response field whose value is mapped to the HTTP
+  // response body. When omitted, the entire response message will be used
+  // as the HTTP response body.
+  //
+  // NOTE: The referred field must be present at the top-level of the response
+  // message type.
+  string response_body = 12;
+
+  // Additional HTTP bindings for the selector. Nested bindings must
+  // not contain an `additional_bindings` field themselves (that is,
+  // the nesting may only be one level deep).
+  repeated HttpRule additional_bindings = 11;
+}
+
+// A custom pattern is used for defining custom HTTP verb.
+message CustomHttpPattern {
+  // The name of this custom HTTP verb.
+  string kind = 1;
+
+  // The path matched by this custom verb.
+  string path = 2;
+}

assets/assets.go

@@ -1,27 +0,0 @@
-//nolint:gochecknoglobals,golint,stylecheck,godox
-package assets
-
-import _ "embed"
-
-// TODO: Using embed.FS
-
-//go:embed templates/schnutibox.yml.tmpl
-var SchnutiboxConfig string
-
-//go:embed files/schnutibox.service
-var SchnutiboxService []byte
-
-//go:embed templates/fstab.raspbian.tmpl
-var FstabRaspbianTemplate string
-
-//go:embed templates/mopidy.conf.tmpl
-var MopidyConf string
-
-//go:embed files/upmpdcli.conf
-var UpmpdcliConf []byte
-
-//go:embed files/ntp.service
-var NtpService []byte
-
-//go:embed templates/50-neuftech.rules.tmpl
-var UDEVRules string

assets/prepare/assets.go

@@ -0,0 +1,12 @@
+//nolint:gochecknoglobals
+package prepare
+
+import "embed"
+
+// Files are files to be copied to the system.
+//go:embed files
+var Files embed.FS
+
+// Templates are the used templates for creating file on the system.
+//go:embed templates
+var Templates embed.FS

assets/prepare/templates/fstab.raspbian.tmpl

@@ -0,0 +1,12 @@
+proc            /proc                     proc    defaults                                                                     0  0
+/dev/mmcblk0p1  /boot                     vfat    ro,defaults                                                                  0  2
+/dev/mmcblk0p2  /                         ext4    ro,defaults,noatime                                                          0  1
+tmpfs           /var/log                  tmpfs   nodev,nosuid                                                                 0  0
+tmpfs           /var/tmp                  tmpfs   nodev,nosuid                                                                 0  0
+tmpfs           /tmp                      tmpfs   nodev,nosuid                                                                 0  0
+tmpfs           /var/lib/systemd/timesync tmpfs   auto,noatime,size=5m,mode=0755,uid={{.TimesyncUID}},gid={{.TimesyncGID}}     0  0
+tmpfs           /var/cache/mopidy         tmpfs   auto,noatime,size=5m,mode=0755,uid={{.MopidyUID}},gid={{.MopidyGID}}         0  0
+tmpfs           /var/cache/upmpdcli       tmpfs   auto,noatime,size=5m,mode=0755,uid={{.UpmpdcliUID}},gid={{.UpmpdcliGID}}     0  0
+tmpfs           /var/lib/ntp              tmpfs   nosuid,nodev                                                                 0  0
+tmpfs           /var/lib/snapserver       tmpfs   nosuid,nodev                                                                 0  0
+tmpfs           /var/lib/snapclient       tmpfs   nosuid,nodev                                                                 0  0

assets/prepare/templates/mopidy.conf.tmpl

@@ -3,7 +3,7 @@ cache_dir = /var/cache/mopidy
 config_dir = /etc/mopidy/
 
 [audio]
-output = alsasink
+output = audioresample ! audioconvert ! audio/x-raw,rate=48000,channels=2,format=S16LE ! filesink location=/tmp/snapfifo
 mixer = alsamixer
 mixer_volume = 100
 
@@ -11,9 +11,9 @@ mixer_volume = 100
 card = 0
 control= Headphone
 
-
 [mpd]
 hostname = 0.0.0.0
+max_connections = 200
 
 [youtube]
 enabled = true

assets/templates/fstab.raspbian.tmpl

@@ -1,10 +0,0 @@
-proc            /proc                     proc    defaults                                                                 0  0
-/dev/mmcblk0p1  /boot                     vfat    ro,defaults                                                              0  2
-/dev/mmcblk0p2  /                         ext4    ro,defaults,noatime                                                      0  1
-tmpfs           /var/log                  tmpfs   nodev,nosuid                                                             0  0
-tmpfs           /var/tmp                  tmpfs   nodev,nosuid                                                             0  0
-tmpfs           /tmp                      tmpfs   nodev,nosuid                                                             0  0
-tmpfs           /var/lib/systemd/timesync tmpfs   auto,noatime,size=5m,mode=0755,uid={{.TimesyncUID}},gid={{.TimesyncGID}} 0  0
-tmpfs           /var/cache/mopidy         tmpfs   auto,noatime,size=5m,mode=0755,uid={{.MopidyUID}},gid={{.MopidyGID}}     0  0
-tmpfs           /var/cache/upmpdcli       tmpfs   auto,noatime,size=5m,mode=0755,uid={{.UpmpdcliUID}},gid={{.UpmpdcliGID}} 0  0
-tmpfs           /var/lib/ntp              tmpfs   nosuid,nodev                                                             0  0

assets/web/assets.go

@@ -0,0 +1,37 @@
+//nolint:gochecknoglobals
+package web
+
+import (
+	"embed"
+	"io/fs"
+	"net/http"
+
+	"github.com/rs/zerolog/log"
+)
+
+//go:embed files
+var files embed.FS
+
+// Files is the sub directed http.FileSystem for files.
+var Files = sub(files, "files")
+
+// Templates stores the templates.
+//go:embed templates
+var Templates embed.FS
+
+//go:embed swagger-ui
+var swaggerUI embed.FS
+
+// SwaggerUI is the sub directed http.FileSystem for the swagger-ui.
+var SwaggerUI = sub(swaggerUI, "swagger-ui")
+
+func sub(f embed.FS, dir string) http.FileSystem {
+	fsys, err := fs.Sub(f, dir)
+	if err != nil {
+		log.Error().Err(err).Str("dir", dir).Msg("could not sub into dir")
+
+		return nil
+	}
+
+	return http.FS(fsys)
+}

assets/web/files/milligram.css

@@ -0,0 +1,635 @@
+/*!
+  * Milligram v1.4.1
+  * https://milligram.io
+  *
+  * Copyright (c) 2020 CJ Patoilo
+  * Licensed under the MIT license
+ */
+
+*,
+*:after,
+*:before {
+  box-sizing: inherit;
+}
+
+html {
+  box-sizing: border-box;
+  font-size: 62.5%;
+}
+
+body {
+  color: #606c76;
+  font-family: 'Roboto', 'Helvetica Neue', 'Helvetica', 'Arial', sans-serif;
+  font-size: 1.6em;
+  font-weight: 300;
+  letter-spacing: .01em;
+  line-height: 1.6;
+}
+
+blockquote {
+  border-left: 0.3rem solid #d1d1d1;
+  margin-left: 0;
+  margin-right: 0;
+  padding: 1rem 1.5rem;
+}
+
+blockquote *:last-child {
+  margin-bottom: 0;
+}
+
+.button,
+button,
+input[type='button'],
+input[type='reset'],
+input[type='submit'] {
+  background-color: #9b4dca;
+  border: 0.1rem solid #9b4dca;
+  border-radius: .4rem;
+  color: #fff;
+  cursor: pointer;
+  display: inline-block;
+  font-size: 1.1rem;
+  font-weight: 700;
+  height: 3.8rem;
+  letter-spacing: .1rem;
+  line-height: 3.8rem;
+  padding: 0 3.0rem;
+  text-align: center;
+  text-decoration: none;
+  text-transform: uppercase;
+  white-space: nowrap;
+}
+
+.button:focus, .button:hover,
+button:focus,
+button:hover,
+input[type='button']:focus,
+input[type='button']:hover,
+input[type='reset']:focus,
+input[type='reset']:hover,
+input[type='submit']:focus,
+input[type='submit']:hover {
+  background-color: #606c76;
+  border-color: #606c76;
+  color: #fff;
+  outline: 0;
+}
+
+.button[disabled],
+button[disabled],
+input[type='button'][disabled],
+input[type='reset'][disabled],
+input[type='submit'][disabled] {
+  cursor: default;
+  opacity: .5;
+}
+
+.button[disabled]:focus, .button[disabled]:hover,
+button[disabled]:focus,
+button[disabled]:hover,
+input[type='button'][disabled]:focus,
+input[type='button'][disabled]:hover,
+input[type='reset'][disabled]:focus,
+input[type='reset'][disabled]:hover,
+input[type='submit'][disabled]:focus,
+input[type='submit'][disabled]:hover {
+  background-color: #9b4dca;
+  border-color: #9b4dca;
+}
+
+.button.button-outline,
+button.button-outline,
+input[type='button'].button-outline,
+input[type='reset'].button-outline,
+input[type='submit'].button-outline {
+  background-color: transparent;
+  color: #9b4dca;
+}
+
+.button.button-outline:focus, .button.button-outline:hover,
+button.button-outline:focus,
+button.button-outline:hover,
+input[type='button'].button-outline:focus,
+input[type='button'].button-outline:hover,
+input[type='reset'].button-outline:focus,
+input[type='reset'].button-outline:hover,
+input[type='submit'].button-outline:focus,
+input[type='submit'].button-outline:hover {
+  background-color: transparent;
+  border-color: #606c76;
+  color: #606c76;
+}
+
+.button.button-outline[disabled]:focus, .button.button-outline[disabled]:hover,
+button.button-outline[disabled]:focus,
+button.button-outline[disabled]:hover,
+input[type='button'].button-outline[disabled]:focus,
+input[type='button'].button-outline[disabled]:hover,
+input[type='reset'].button-outline[disabled]:focus,
+input[type='reset'].button-outline[disabled]:hover,
+input[type='submit'].button-outline[disabled]:focus,
+input[type='submit'].button-outline[disabled]:hover {
+  border-color: inherit;
+  color: #9b4dca;
+}
+
+.button.button-clear,
+button.button-clear,
+input[type='button'].button-clear,
+input[type='reset'].button-clear,
+input[type='submit'].button-clear {
+  background-color: transparent;
+  border-color: transparent;
+  color: #9b4dca;
+}
+
+.button.button-clear:focus, .button.button-clear:hover,
+button.button-clear:focus,
+button.button-clear:hover,
+input[type='button'].button-clear:focus,
+input[type='button'].button-clear:hover,
+input[type='reset'].button-clear:focus,
+input[type='reset'].button-clear:hover,
+input[type='submit'].button-clear:focus,
+input[type='submit'].button-clear:hover {
+  background-color: transparent;
+  border-color: transparent;
+  color: #606c76;
+}
+
+.button.button-clear[disabled]:focus, .button.button-clear[disabled]:hover,
+button.button-clear[disabled]:focus,
+button.button-clear[disabled]:hover,
+input[type='button'].button-clear[disabled]:focus,
+input[type='button'].button-clear[disabled]:hover,
+input[type='reset'].button-clear[disabled]:focus,
+input[type='reset'].button-clear[disabled]:hover,
+input[type='submit'].button-clear[disabled]:focus,
+input[type='submit'].button-clear[disabled]:hover {
+  color: #9b4dca;
+}
+
+code {
+  background: #f4f5f6;
+  border-radius: .4rem;
+  font-size: 86%;
+  margin: 0 .2rem;
+  padding: .2rem .5rem;
+  white-space: nowrap;
+}
+
+pre {
+  background: #f4f5f6;
+  border-left: 0.3rem solid #9b4dca;
+  overflow-y: hidden;
+}
+
+pre > code {
+  border-radius: 0;
+  display: block;
+  padding: 1rem 1.5rem;
+  white-space: pre;
+}
+
+hr {
+  border: 0;
+  border-top: 0.1rem solid #f4f5f6;
+  margin: 3.0rem 0;
+}
+
+input[type='color'],
+input[type='date'],
+input[type='datetime'],
+input[type='datetime-local'],
+input[type='email'],
+input[type='month'],
+input[type='number'],
+input[type='password'],
+input[type='search'],
+input[type='tel'],
+input[type='text'],
+input[type='url'],
+input[type='week'],
+input:not([type]),
+textarea,
+select {
+  -webkit-appearance: none;
+  background-color: transparent;
+  border: 0.1rem solid #d1d1d1;
+  border-radius: .4rem;
+  box-shadow: none;
+  box-sizing: inherit;
+  height: 3.8rem;
+  padding: .6rem 1.0rem .7rem;
+  width: 100%;
+}
+
+input[type='color']:focus,
+input[type='date']:focus,
+input[type='datetime']:focus,
+input[type='datetime-local']:focus,
+input[type='email']:focus,
+input[type='month']:focus,
+input[type='number']:focus,
+input[type='password']:focus,
+input[type='search']:focus,
+input[type='tel']:focus,
+input[type='text']:focus,
+input[type='url']:focus,
+input[type='week']:focus,
+input:not([type]):focus,
+textarea:focus,
+select:focus {
+  border-color: #9b4dca;
+  outline: 0;
+}
+
+select {
+  background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 30 8" width="30"><path fill="%23d1d1d1" d="M0,0l6,8l6-8"/></svg>') center right no-repeat;
+  padding-right: 3.0rem;
+}
+
+select:focus {
+  background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 30 8" width="30"><path fill="%239b4dca" d="M0,0l6,8l6-8"/></svg>');
+}
+
+select[multiple] {
+  background: none;
+  height: auto;
+}
+
+textarea {
+  min-height: 6.5rem;
+}
+
+label,
+legend {
+  display: block;
+  font-size: 1.6rem;
+  font-weight: 700;
+  margin-bottom: .5rem;
+}
+
+fieldset {
+  border-width: 0;
+  padding: 0;
+}
+
+input[type='checkbox'],
+input[type='radio'] {
+  display: inline;
+}
+
+.label-inline {
+  display: inline-block;
+  font-weight: normal;
+  margin-left: .5rem;
+}
+
+.container {
+  margin: 0 auto;
+  max-width: 112.0rem;
+  padding: 0 2.0rem;
+  position: relative;
+  width: 100%;
+}
+
+.row {
+  display: flex;
+  flex-direction: column;
+  padding: 0;
+  width: 100%;
+}
+
+.row.row-no-padding {
+  padding: 0;
+}
+
+.row.row-no-padding > .column {
+  padding: 0;
+}
+
+.row.row-wrap {
+  flex-wrap: wrap;
+}
+
+.row.row-top {
+  align-items: flex-start;
+}
+
+.row.row-bottom {
+  align-items: flex-end;
+}
+
+.row.row-center {
+  align-items: center;
+}
+
+.row.row-stretch {
+  align-items: stretch;
+}
+
+.row.row-baseline {
+  align-items: baseline;
+}
+
+.row .column {
+  display: block;
+  flex: 1 1 auto;
+  margin-left: 0;
+  max-width: 100%;
+  width: 100%;
+}
+
+.row .column.column-offset-10 {
+  margin-left: 10%;
+}
+
+.row .column.column-offset-20 {
+  margin-left: 20%;
+}
+
+.row .column.column-offset-25 {
+  margin-left: 25%;
+}
+
+.row .column.column-offset-33, .row .column.column-offset-34 {
+  margin-left: 33.3333%;
+}
+
+.row .column.column-offset-40 {
+  margin-left: 40%;
+}
+
+.row .column.column-offset-50 {
+  margin-left: 50%;
+}
+
+.row .column.column-offset-60 {
+  margin-left: 60%;
+}
+
+.row .column.column-offset-66, .row .column.column-offset-67 {
+  margin-left: 66.6666%;
+}
+
+.row .column.column-offset-75 {
+  margin-left: 75%;
+}
+
+.row .column.column-offset-80 {
+  margin-left: 80%;
+}
+
+.row .column.column-offset-90 {
+  margin-left: 90%;
+}
+
+.row .column.column-10 {
+  flex: 0 0 10%;
+  max-width: 10%;
+}
+
+.row .column.column-20 {
+  flex: 0 0 20%;
+  max-width: 20%;
+}
+
+.row .column.column-25 {
+  flex: 0 0 25%;
+  max-width: 25%;
+}
+
+.row .column.column-33, .row .column.column-34 {
+  flex: 0 0 33.3333%;
+  max-width: 33.3333%;
+}
+
+.row .column.column-40 {
+  flex: 0 0 40%;
+  max-width: 40%;
+}
+
+.row .column.column-50 {
+  flex: 0 0 50%;
+  max-width: 50%;
+}
+
+.row .column.column-60 {
+  flex: 0 0 60%;
+  max-width: 60%;
+}
+
+.row .column.column-66, .row .column.column-67 {
+  flex: 0 0 66.6666%;
+  max-width: 66.6666%;
+}
+
+.row .column.column-75 {
+  flex: 0 0 75%;
+  max-width: 75%;
+}
+
+.row .column.column-80 {
+  flex: 0 0 80%;
+  max-width: 80%;
+}
+
+.row .column.column-90 {
+  flex: 0 0 90%;
+  max-width: 90%;
+}
+
+.row .column .column-top {
+  align-self: flex-start;
+}
+
+.row .column .column-bottom {
+  align-self: flex-end;
+}
+
+.row .column .column-center {
+  align-self: center;
+}
+
+@media (min-width: 40rem) {
+  .row {
+    flex-direction: row;
+    margin-left: -1.0rem;
+    width: calc(100% + 2.0rem);
+  }
+  .row .column {
+    margin-bottom: inherit;
+    padding: 0 1.0rem;
+  }
+}
+
+a {
+  color: #9b4dca;
+  text-decoration: none;
+}
+
+a:focus, a:hover {
+  color: #606c76;
+}
+
+dl,
+ol,
+ul {
+  list-style: none;
+  margin-top: 0;
+  padding-left: 0;
+}
+
+dl dl,
+dl ol,
+dl ul,
+ol dl,
+ol ol,
+ol ul,
+ul dl,
+ul ol,
+ul ul {
+  font-size: 90%;
+  margin: 1.5rem 0 1.5rem 3.0rem;
+}
+
+ol {
+  list-style: decimal inside;
+}
+
+ul {
+  list-style: circle inside;
+}
+
+.button,
+button,
+dd,
+dt,
+li {
+  margin-bottom: 1.0rem;
+}
+
+fieldset,
+input,
+select,
+textarea {
+  margin-bottom: 1.5rem;
+}
+
+blockquote,
+dl,
+figure,
+form,
+ol,
+p,
+pre,
+table,
+ul {
+  margin-bottom: 2.5rem;
+}
+
+table {
+  border-spacing: 0;
+  display: block;
+  overflow-x: auto;
+  text-align: left;
+  width: 100%;
+}
+
+td,
+th {
+  border-bottom: 0.1rem solid #e1e1e1;
+  padding: 1.2rem 1.5rem;
+}
+
+td:first-child,
+th:first-child {
+  padding-left: 0;
+}
+
+td:last-child,
+th:last-child {
+  padding-right: 0;
+}
+
+@media (min-width: 40rem) {
+  table {
+    display: table;
+    overflow-x: initial;
+  }
+}
+
+b,
+strong {
+  font-weight: bold;
+}
+
+p {
+  margin-top: 0;
+}
+
+h1,
+h2,
+h3,
+h4,
+h5,
+h6 {
+  font-weight: 300;
+  letter-spacing: -.1rem;
+  margin-bottom: 2.0rem;
+  margin-top: 0;
+}
+
+h1 {
+  font-size: 4.6rem;
+  line-height: 1.2;
+}
+
+h2 {
+  font-size: 3.6rem;
+  line-height: 1.25;
+}
+
+h3 {
+  font-size: 2.8rem;
+  line-height: 1.3;
+}
+
+h4 {
+  font-size: 2.2rem;
+  letter-spacing: -.08rem;
+  line-height: 1.35;
+}
+
+h5 {
+  font-size: 1.8rem;
+  letter-spacing: -.05rem;
+  line-height: 1.5;
+}
+
+h6 {
+  font-size: 1.6rem;
+  letter-spacing: 0;
+  line-height: 1.4;
+}
+
+img {
+  max-width: 100%;
+}
+
+.clearfix:after {
+  clear: both;
+  content: ' ';
+  display: table;
+}
+
+.float-left {
+  float: left;
+}
+
+.float-right {
+  float: right;
+}
+
+/*# sourceMappingURL=milligram.css.map */

assets/web/files/normalize.css

@@ -0,0 +1,349 @@
+/*! normalize.css v8.0.1 | MIT License | github.com/necolas/normalize.css */
+
+/* Document
+   ========================================================================== */
+
+/**
+ * 1. Correct the line height in all browsers.
+ * 2. Prevent adjustments of font size after orientation changes in iOS.
+ */
+
+html {
+  line-height: 1.15; /* 1 */
+  -webkit-text-size-adjust: 100%; /* 2 */
+}
+
+/* Sections
+   ========================================================================== */
+
+/**
+ * Remove the margin in all browsers.
+ */
+
+body {
+  margin: 0;
+}
+
+/**
+ * Render the `main` element consistently in IE.
+ */
+
+main {
+  display: block;
+}
+
+/**
+ * Correct the font size and margin on `h1` elements within `section` and
+ * `article` contexts in Chrome, Firefox, and Safari.
+ */
+
+h1 {
+  font-size: 2em;
+  margin: 0.67em 0;
+}
+
+/* Grouping content
+   ========================================================================== */
+
+/**
+ * 1. Add the correct box sizing in Firefox.
+ * 2. Show the overflow in Edge and IE.
+ */
+
+hr {
+  box-sizing: content-box; /* 1 */
+  height: 0; /* 1 */
+  overflow: visible; /* 2 */
+}
+
+/**
+ * 1. Correct the inheritance and scaling of font size in all browsers.
+ * 2. Correct the odd `em` font sizing in all browsers.
+ */
+
+pre {
+  font-family: monospace, monospace; /* 1 */
+  font-size: 1em; /* 2 */
+}
+
+/* Text-level semantics
+   ========================================================================== */
+
+/**
+ * Remove the gray background on active links in IE 10.
+ */
+
+a {
+  background-color: transparent;
+}
+
+/**
+ * 1. Remove the bottom border in Chrome 57-
+ * 2. Add the correct text decoration in Chrome, Edge, IE, Opera, and Safari.
+ */
+
+abbr[title] {
+  border-bottom: none; /* 1 */
+  text-decoration: underline; /* 2 */
+  text-decoration: underline dotted; /* 2 */
+}
+
+/**
+ * Add the correct font weight in Chrome, Edge, and Safari.
+ */
+
+b,
+strong {
+  font-weight: bolder;
+}
+
+/**
+ * 1. Correct the inheritance and scaling of font size in all browsers.
+ * 2. Correct the odd `em` font sizing in all browsers.
+ */
+
+code,
+kbd,
+samp {
+  font-family: monospace, monospace; /* 1 */
+  font-size: 1em; /* 2 */
+}
+
+/**
+ * Add the correct font size in all browsers.
+ */
+
+small {
+  font-size: 80%;
+}
+
+/**
+ * Prevent `sub` and `sup` elements from affecting the line height in
+ * all browsers.
+ */
+
+sub,
+sup {
+  font-size: 75%;
+  line-height: 0;
+  position: relative;
+  vertical-align: baseline;
+}
+
+sub {
+  bottom: -0.25em;
+}
+
+sup {
+  top: -0.5em;
+}
+
+/* Embedded content
+   ========================================================================== */
+
+/**
+ * Remove the border on images inside links in IE 10.
+ */
+
+img {
+  border-style: none;
+}
+
+/* Forms
+   ========================================================================== */
+
+/**
+ * 1. Change the font styles in all browsers.
+ * 2. Remove the margin in Firefox and Safari.
+ */
+
+button,
+input,
+optgroup,
+select,
+textarea {
+  font-family: inherit; /* 1 */
+  font-size: 100%; /* 1 */
+  line-height: 1.15; /* 1 */
+  margin: 0; /* 2 */
+}
+
+/**
+ * Show the overflow in IE.
+ * 1. Show the overflow in Edge.
+ */
+
+button,
+input { /* 1 */
+  overflow: visible;
+}
+
+/**
+ * Remove the inheritance of text transform in Edge, Firefox, and IE.
+ * 1. Remove the inheritance of text transform in Firefox.
+ */
+
+button,
+select { /* 1 */
+  text-transform: none;
+}
+
+/**
+ * Correct the inability to style clickable types in iOS and Safari.
+ */
+
+button,
+[type="button"],
+[type="reset"],
+[type="submit"] {
+  -webkit-appearance: button;
+}
+
+/**
+ * Remove the inner border and padding in Firefox.
+ */
+
+button::-moz-focus-inner,
+[type="button"]::-moz-focus-inner,
+[type="reset"]::-moz-focus-inner,
+[type="submit"]::-moz-focus-inner {
+  border-style: none;
+  padding: 0;
+}
+
+/**
+ * Restore the focus styles unset by the previous rule.
+ */
+
+button:-moz-focusring,
+[type="button"]:-moz-focusring,
+[type="reset"]:-moz-focusring,
+[type="submit"]:-moz-focusring {
+  outline: 1px dotted ButtonText;
+}
+
+/**
+ * Correct the padding in Firefox.
+ */
+
+fieldset {
+  padding: 0.35em 0.75em 0.625em;
+}
+
+/**
+ * 1. Correct the text wrapping in Edge and IE.
+ * 2. Correct the color inheritance from `fieldset` elements in IE.
+ * 3. Remove the padding so developers are not caught out when they zero out
+ *    `fieldset` elements in all browsers.
+ */
+
+legend {
+  box-sizing: border-box; /* 1 */
+  color: inherit; /* 2 */
+  display: table; /* 1 */
+  max-width: 100%; /* 1 */
+  padding: 0; /* 3 */
+  white-space: normal; /* 1 */
+}
+
+/**
+ * Add the correct vertical alignment in Chrome, Firefox, and Opera.
+ */
+
+progress {
+  vertical-align: baseline;
+}
+
+/**
+ * Remove the default vertical scrollbar in IE 10+.
+ */
+
+textarea {
+  overflow: auto;
+}
+
+/**
+ * 1. Add the correct box sizing in IE 10.
+ * 2. Remove the padding in IE 10.
+ */
+
+[type="checkbox"],
+[type="radio"] {
+  box-sizing: border-box; /* 1 */
+  padding: 0; /* 2 */
+}
+
+/**
+ * Correct the cursor style of increment and decrement buttons in Chrome.
+ */
+
+[type="number"]::-webkit-inner-spin-button,
+[type="number"]::-webkit-outer-spin-button {
+  height: auto;
+}
+
+/**
+ * 1. Correct the odd appearance in Chrome and Safari.
+ * 2. Correct the outline style in Safari.
+ */
+
+[type="search"] {
+  -webkit-appearance: textfield; /* 1 */
+  outline-offset: -2px; /* 2 */
+}
+
+/**
+ * Remove the inner padding in Chrome and Safari on macOS.
+ */
+
+[type="search"]::-webkit-search-decoration {
+  -webkit-appearance: none;
+}
+
+/**
+ * 1. Correct the inability to style clickable types in iOS and Safari.
+ * 2. Change font properties to `inherit` in Safari.
+ */
+
+::-webkit-file-upload-button {
+  -webkit-appearance: button; /* 1 */
+  font: inherit; /* 2 */
+}
+
+/* Interactive
+   ========================================================================== */
+
+/*
+ * Add the correct display in Edge, IE 10+, and Firefox.
+ */
+
+details {
+  display: block;
+}
+
+/*
+ * Add the correct display in all browsers.
+ */
+
+summary {
+  display: list-item;
+}
+
+/* Misc
+   ========================================================================== */
+
+/**
+ * Add the correct display in IE 10+.
+ */
+
+template {
+  display: none;
+}
+
+/**
+ * Add the correct display in IE 10.
+ */
+
+[hidden] {
+  display: none;
+}

assets/web/files/schnutibox.js

@@ -0,0 +1,39 @@
+if(typeof(EventSource) !== "undefined") {
+        var logSource = new EventSource("/log");
+        logSource.onmessage = function(event) {
+                var j = JSON.parse(event.data);
+                /* eslint-disable no-prototype-builtins */
+                if (j.hasOwnProperty("message")) {
+                        document.getElementById("log").innerHTML += j.message + "<br>";
+                }
+        };
+} else {
+        document.getElementById("log").innerHTML = "Sorry, your browser does not support server-sent events...";
+}
+
+if(typeof(EventSource) !== "undefined") {
+  var currentsongSource = new EventSource("/currentsong");
+  currentsongSource.onmessage = function(event){
+    document.getElementById("currentsong").innerHTML = event.data
+  };
+} else {
+        document.getElementById("currentsong").innerHTML = "Sorry, your browser does not support server-sent events...";
+};
+
+function handleSubmit(event, url) {
+  event.preventDefault()
+
+  var data = new FormData(event.target)
+  var value = Object.fromEntries(data.entries())
+  var jsonValue = JSON.stringify(value)
+
+  console.log(jsonValue)
+
+  var xhr = new XMLHttpRequest()
+  xhr.open("POST", url)
+  xhr.setRequestHeader("Content-Type", "application/json")
+  xhr.send(jsonValue)
+}
+
+var timerForm = document.querySelector('#timerForm')
+timerForm.addEventListener('submit', function(){handleSubmit(event, "/api/v1/timer")})

assets/web/swagger-ui/google/api/annotations.swagger.json

@@ -0,0 +1,46 @@
+{
+  "swagger": "2.0",
+  "info": {
+    "title": "google/api/annotations.proto",
+    "version": "version not set"
+  },
+  "consumes": [
+    "application/json"
+  ],
+  "produces": [
+    "application/json"
+  ],
+  "paths": {},
+  "definitions": {
+    "protobufAny": {
+      "type": "object",
+      "properties": {
+        "typeUrl": {
+          "type": "string"
+        },
+        "value": {
+          "type": "string",
+          "format": "byte"
+        }
+      }
+    },
+    "rpcStatus": {
+      "type": "object",
+      "properties": {
+        "code": {
+          "type": "integer",
+          "format": "int32"
+        },
+        "message": {
+          "type": "string"
+        },
+        "details": {
+          "type": "array",
+          "items": {
+            "$ref": "#/definitions/protobufAny"
+          }
+        }
+      }
+    }
+  }
+}

assets/web/swagger-ui/google/api/http.swagger.json

@@ -0,0 +1,46 @@
+{
+  "swagger": "2.0",
+  "info": {
+    "title": "google/api/http.proto",
+    "version": "version not set"
+  },
+  "consumes": [
+    "application/json"
+  ],
+  "produces": [
+    "application/json"
+  ],
+  "paths": {},
+  "definitions": {
+    "protobufAny": {
+      "type": "object",
+      "properties": {
+        "typeUrl": {
+          "type": "string"
+        },
+        "value": {
+          "type": "string",
+          "format": "byte"
+        }
+      }
+    },
+    "rpcStatus": {
+      "type": "object",
+      "properties": {
+        "code": {
+          "type": "integer",
+          "format": "int32"
+        },
+        "message": {
+          "type": "string"
+        },
+        "details": {
+          "type": "array",
+          "items": {
+            "$ref": "#/definitions/protobufAny"
+          }
+        }
+      }
+    }
+  }
+}

assets/web/swagger-ui/index.html

@@ -0,0 +1,62 @@
+<!-- HTML for static distribution bundle build -->
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <title>Swagger UI</title>
+    <link rel="stylesheet" type="text/css" href="./swagger-ui.css" />
+    <link
+      rel="icon"
+      type="image/png"
+      href="./favicon-32x32.png"
+      sizes="32x32"
+    />
+    <link
+      rel="icon"
+      type="image/png"
+      href="./favicon-16x16.png"
+      sizes="16x16"
+    />
+    <style>
+      html {
+        box-sizing: border-box;
+        overflow: -moz-scrollbars-vertical;
+        overflow-y: scroll;
+      }
+
+      *,
+      *:before,
+      *:after {
+        box-sizing: inherit;
+      }
+
+      body {
+        margin: 0;
+        background: #fafafa;
+      }
+    </style>
+  </head>
+
+  <body>
+    <div id="swagger-ui"></div>
+
+    <script src="./swagger-ui-bundle.js" charset="UTF-8"></script>
+    <script src="./swagger-ui-standalone-preset.js" charset="UTF-8"></script>
+    <script>
+      window.onload = function () {
+        // Begin Swagger UI call region
+        const ui = SwaggerUIBundle({
+          url: "./schnutibox.swagger.json",
+          dom_id: "#swagger-ui",
+          deepLinking: true,
+          presets: [SwaggerUIBundle.presets.apis, SwaggerUIStandalonePreset],
+          plugins: [SwaggerUIBundle.plugins.DownloadUrl],
+          layout: "StandaloneLayout",
+        });
+        // End Swagger UI call region
+
+        window.ui = ui;
+      };
+    </script>
+  </body>
+</html>

assets/web/swagger-ui/oauth2-redirect.html

@@ -0,0 +1,75 @@
+<!doctype html>
+<html lang="en-US">
+<head>
+    <title>Swagger UI: OAuth2 Redirect</title>
+</head>
+<body>
+<script>
+    'use strict';
+    function run () {
+        var oauth2 = window.opener.swaggerUIRedirectOauth2;
+        var sentState = oauth2.state;
+        var redirectUrl = oauth2.redirectUrl;
+        var isValid, qp, arr;
+
+        if (/code|token|error/.test(window.location.hash)) {
+            qp = window.location.hash.substring(1);
+        } else {
+            qp = location.search.substring(1);
+        }
+
+        arr = qp.split("&");
+        arr.forEach(function (v,i,_arr) { _arr[i] = '"' + v.replace('=', '":"') + '"';});
+        qp = qp ? JSON.parse('{' + arr.join() + '}',
+                function (key, value) {
+                    return key === "" ? value : decodeURIComponent(value);
+                }
+        ) : {};
+
+        isValid = qp.state === sentState;
+
+        if ((
+          oauth2.auth.schema.get("flow") === "accessCode" ||
+          oauth2.auth.schema.get("flow") === "authorizationCode" ||
+          oauth2.auth.schema.get("flow") === "authorization_code"
+        ) && !oauth2.auth.code) {
+            if (!isValid) {
+                oauth2.errCb({
+                    authId: oauth2.auth.name,
+                    source: "auth",
+                    level: "warning",
+                    message: "Authorization may be unsafe, passed state was changed in server Passed state wasn't returned from auth server"
+                });
+            }
+
+            if (qp.code) {
+                delete oauth2.state;
+                oauth2.auth.code = qp.code;
+                oauth2.callback({auth: oauth2.auth, redirectUrl: redirectUrl});
+            } else {
+                let oauthErrorMsg;
+                if (qp.error) {
+                    oauthErrorMsg = "["+qp.error+"]: " +
+                        (qp.error_description ? qp.error_description+ ". " : "no accessCode received from the server. ") +
+                        (qp.error_uri ? "More info: "+qp.error_uri : "");
+                }
+
+                oauth2.errCb({
+                    authId: oauth2.auth.name,
+                    source: "auth",
+                    level: "error",
+                    message: oauthErrorMsg || "[Authorization failed]: no accessCode received from the server"
+                });
+            }
+        } else {
+            oauth2.callback({auth: oauth2.auth, token: qp, isValid: isValid, redirectUrl: redirectUrl});
+        }
+        window.close();
+    }
+
+    window.addEventListener('DOMContentLoaded', function () {
+      run();
+    });
+</script>
+</body>
+</html>

assets/web/swagger-ui/schnutibox.swagger.json

@@ -0,0 +1,172 @@
+{
+  "swagger": "2.0",
+  "info": {
+    "title": "schnutibox.proto",
+    "version": "version not set"
+  },
+  "tags": [
+    {
+      "name": "IdentifierService"
+    },
+    {
+      "name": "TimerService"
+    }
+  ],
+  "consumes": [
+    "application/json"
+  ],
+  "produces": [
+    "application/json"
+  ],
+  "paths": {
+    "/api/v1/identify": {
+      "post": {
+        "operationId": "IdentifierService_Identify",
+        "responses": {
+          "200": {
+            "description": "A successful response.",
+            "schema": {
+              "$ref": "#/definitions/v1IdentifyResponse"
+            }
+          },
+          "default": {
+            "description": "An unexpected error response.",
+            "schema": {
+              "$ref": "#/definitions/rpcStatus"
+            }
+          }
+        },
+        "parameters": [
+          {
+            "name": "body",
+            "in": "body",
+            "required": true,
+            "schema": {
+              "$ref": "#/definitions/v1IdentifyRequest"
+            }
+          }
+        ],
+        "tags": [
+          "IdentifierService"
+        ]
+      }
+    },
+    "/api/v1/timer": {
+      "get": {
+        "operationId": "TimerService_Get",
+        "responses": {
+          "200": {
+            "description": "A successful response.",
+            "schema": {
+              "$ref": "#/definitions/v1Timer"
+            }
+          },
+          "default": {
+            "description": "An unexpected error response.",
+            "schema": {
+              "$ref": "#/definitions/rpcStatus"
+            }
+          }
+        },
+        "tags": [
+          "TimerService"
+        ]
+      },
+      "post": {
+        "operationId": "TimerService_Create",
+        "responses": {
+          "200": {
+            "description": "A successful response.",
+            "schema": {
+              "$ref": "#/definitions/v1Timer"
+            }
+          },
+          "default": {
+            "description": "An unexpected error response.",
+            "schema": {
+              "$ref": "#/definitions/rpcStatus"
+            }
+          }
+        },
+        "parameters": [
+          {
+            "name": "body",
+            "in": "body",
+            "required": true,
+            "schema": {
+              "$ref": "#/definitions/v1Timer"
+            }
+          }
+        ],
+        "tags": [
+          "TimerService"
+        ]
+      }
+    }
+  },
+  "definitions": {
+    "protobufAny": {
+      "type": "object",
+      "properties": {
+        "typeUrl": {
+          "type": "string"
+        },
+        "value": {
+          "type": "string",
+          "format": "byte"
+        }
+      }
+    },
+    "rpcStatus": {
+      "type": "object",
+      "properties": {
+        "code": {
+          "type": "integer",
+          "format": "int32"
+        },
+        "message": {
+          "type": "string"
+        },
+        "details": {
+          "type": "array",
+          "items": {
+            "$ref": "#/definitions/protobufAny"
+          }
+        }
+      }
+    },
+    "v1IdentifyRequest": {
+      "type": "object",
+      "properties": {
+        "id": {
+          "type": "string"
+        }
+      }
+    },
+    "v1IdentifyResponse": {
+      "type": "object",
+      "properties": {
+        "name": {
+          "type": "string"
+        },
+        "uris": {
+          "type": "array",
+          "items": {
+            "type": "string"
+          }
+        }
+      }
+    },
+    "v1Timer": {
+      "type": "object",
+      "properties": {
+        "duration": {
+          "type": "string"
+        },
+        "current": {
+          "type": "string"
+        }
+      }
+    }
+  }
+}

assets/web/templates/index.html.tmpl

@@ -0,0 +1,33 @@
+<!doctype html>
+<html lang=en>
+        <head>
+                <meta charset=utf-8>
+                <title>schnutibox</title>
+                <link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Roboto:300,300italic,700,700italic">
+                <link rel="stylesheet" href="/static/normalize.css">
+                <link rel="stylesheet" href="/static/milligram.css">
+        </head>
+        <body>
+                <div class="container">
+                        <h1>schnutibox</h1>
+
+			<h2>Currently playing</h2>
+			<div id="currentsong"></div>
+
+			<h2>Timer</h2>
+			Takes only seconds. Example: 600s
+			<form id="timerForm">
+				<input type="text" name="duration" placeholder="600s">
+				<input type="submit" value="Set">
+			</form>
+
+                        <h2>logs</h2>
+                        <pre>
+                                <code>
+                                        <div id="log"></div>
+                                </code>
+                        </pre>
+                </div>
+        <script src=/static/schnutibox.js></script>
+        </body>
+</html>

buf.gen.yaml

@@ -0,0 +1,17 @@
+---
+version: v1beta1
+plugins:
+  - name: go
+    out: pkg/api/v1
+    opt: paths=source_relative
+
+  - name: go-grpc
+    out: pkg/api/v1
+    opt: paths=source_relative,require_unimplemented_servers=false
+
+  - name: grpc-gateway
+    out: pkg/api/v1
+    opt: paths=source_relative
+
+  - name: openapiv2
+    out: assets/web/swagger-ui

buf.yaml

@@ -0,0 +1,14 @@
+---
+version: v1beta1
+name: buf.build/xsteadfastx/schnutibox
+build:
+  roots:
+    - api/proto/v1/
+    - api/proto/vendor/
+lint:
+  except:
+    - PACKAGE_DIRECTORY_MATCH
+    - RPC_REQUEST_STANDARD_NAME
+    - RPC_RESPONSE_STANDARD_NAME
+    - RPC_REQUEST_RESPONSE_UNIQUE
+    - PACKAGE_VERSION_SUFFIX

build/package/docker/Dockerfile

@@ -0,0 +1,4 @@
+FROM scratch
+COPY schnutibox /
+ENTRYPOINT ["/schnutibox"]
+CMD ["web"]

cmd/root.go

@@ -1,15 +1,17 @@
-//nolint:exhaustivestruct,gochecknoglobals,gochecknoinits
+//nolint:exhaustivestruct,gochecknoglobals,gochecknoinits,gomnd
 package cmd
 
 import (
 	"fmt"
 	"os"
 	"strings"
+	"time"
 
 	"github.com/fsnotify/fsnotify"
 	"github.com/rs/zerolog"
 	"github.com/rs/zerolog/log"
 	"github.com/spf13/cobra"
+	"github.com/spf13/pflag"
 	"github.com/spf13/viper"
 	"go.xsfx.dev/schnutibox/internal/config"
 	"go.xsfx.dev/schnutibox/pkg/prepare"
@@ -27,7 +29,12 @@ var rootCmd = &cobra.Command{
 }
 
 // init initializes the command line interface.
+//
+// nolint:funlen
 func init() {
+	// Root.
+	rootCmd.PersistentFlags().Bool("pprof", false, "Enables pprof for debugging")
+
 	// Run.
 	rootCmd.AddCommand(runCmd)
 	runCmd.Flags().StringVarP(&cfgFile, "config", "c", "", "config file")
@@ -36,6 +43,8 @@ func init() {
 		log.Fatal().Err(err).Msg("missing flag")
 	}
 
+	runCmd.Flags().Bool("ignore-reader", false, "Ignoring that the reader is missing")
+
 	// Prepare.
 	rootCmd.AddCommand(prepareCmd)
 	prepareCmd.Flags().BoolVar(&prepare.Cfg.ReadOnly, "read-only", false, "Setup read-only system")
@@ -49,18 +58,34 @@ func init() {
 
 	// Version.
 	rootCmd.AddCommand(versionCmd)
-}
 
-// initConfig loads the config file.
-func initConfig() {
-	logger := log.With().Str("config", cfgFile).Logger()
+	// Web.
+	rootCmd.AddCommand(webCmd)
+	webCmd.Flags().StringVarP(&cfgFile, "config", "c", "", "config file")
+
+	if err := webCmd.MarkFlagRequired("config"); err != nil {
+		log.Fatal().Err(err).Msg("missing flag")
+	}
+
+	// Timer.
+	rootCmd.AddCommand(timerCmd)
+	timerCmd.Flags().String("hostname", "localhost", "Hostname of schnutibox")
+	timerCmd.Flags().Int("port", 6600, "Port of schnutibox")
+	timerCmd.Flags().DurationP("duration", "d", time.Minute, "Duration until the timer stops the playback")
+
+	if err := timerCmd.MarkFlagRequired("duration"); err != nil {
+		log.Fatal().Err(err).Msg("missing flag")
+	}
 
 	// Defaults.
-	viper.SetDefault("box.hostname", "localhost")
-	viper.SetDefault("box.port", 9999)
+	viper.SetDefault("web.hostname", "localhost")
+	viper.SetDefault("web.port", 9999)
 	viper.SetDefault("mpd.hostname", "localhost")
 	viper.SetDefault("mpd.port", 6600)
 	viper.SetDefault("reader.dev", "/dev/hidraw0")
+	viper.SetDefault("reader.ignore", false)
+	viper.SetDefault("debug.pprof", false)
+	viper.SetDefault("timer.duration", time.Minute)
 
 	// Environment handling.
 	viper.SetEnvPrefix("SCHNUTIBOX")
@@ -68,36 +93,82 @@ func initConfig() {
 	viper.AutomaticEnv()
 
 	// Flags.
-	if err := viper.BindPFlag("reader.dev", prepareCmd.Flags().Lookup("rfid-reader")); err != nil {
-		logger.Fatal().Err(err).Msg("could not bind flag")
+	for k, v := range map[string]*pflag.Flag{
+		"debug.pprof":    rootCmd.PersistentFlags().Lookup("pprof"),
+		"reader.dev":     prepareCmd.Flags().Lookup("rfid-reader"),
+		"reader.ignore":  runCmd.Flags().Lookup("ignore-reader"),
+		"web.hostname":   timerCmd.Flags().Lookup("hostname"),
+		"web.port":       timerCmd.Flags().Lookup("port"),
+		"timer.duration": timerCmd.Flags().Lookup("duration"),
+	} {
+		if err := viper.BindPFlag(k, v); err != nil {
+			log.Fatal().Err(err).Msg("could not bind flag")
+		}
 	}
-
-	// Parse config file.
-	if cfgFile != "" {
-		viper.SetConfigFile(cfgFile)
-		parseConfig(logger)
-	} else {
-		logger.Fatal().Msg("missing config file")
-	}
-
-	viper.WatchConfig()
-	viper.OnConfigChange(func(e fsnotify.Event) {
-		logger.Info().Msg("config file changed")
-		parseConfig(logger)
-	})
 }
 
-func parseConfig(logger zerolog.Logger) {
+// initConfig loads the config file.
+// fatal defines if config parsing should end in a fatal error or not.
+func initConfig(fatal bool) {
+	logger := log.With().Str("config", cfgFile).Logger()
+
+	// Parse config file.
+	if cfgFile == "" && fatal {
+		logger.Fatal().Msg("missing config file")
+	} else if cfgFile == "" {
+		logger.Warn().Msg("missing config file")
+	}
+
+	// Dont mind if there is no config file... viper also should populate
+	// flags and environment variables.
+	viper.SetConfigFile(cfgFile)
+	parseConfig(logger, fatal)
+
+	// Configfile changes watch only enabled if there is a config file.
+	if cfgFile != "" {
+		viper.WatchConfig()
+		viper.OnConfigChange(func(e fsnotify.Event) {
+			logger.Info().Msg("config file changed")
+			parseConfig(logger, false)
+		})
+	}
+}
+
+// parseConfig parses the config and does some tests if required fields are there.
+// Its also possible to decide if parsing should end up in a fatal or just an error.
+func parseConfig(logger zerolog.Logger, fatal bool) {
 	if err := viper.ReadInConfig(); err != nil {
-		logger.Fatal().Err(err).Msg("error loading config file")
+		if fatal {
+			logger.Fatal().Err(err).Msg("error loading config file")
+		}
+
+		logger.Error().Err(err).Msg("error loading config file")
 	}
 
 	if err := viper.Unmarshal(&config.Cfg); err != nil {
-		logger.Fatal().Err(err).Msg("could not unmarshal config")
+		if fatal {
+			logger.Fatal().Err(err).Msg("could not unmarshal config")
+		}
+
+		logger.Error().Err(err).Msg("could not unmarshal config")
 	}
 
-	if err := config.Cfg.Require(); err != nil {
-		logger.Fatal().Err(err).Msg("missing config parts")
+	// Disabling require check if no config is set.
+	// Not sure about this!
+	if cfgFile != "" {
+		if err := config.Cfg.Require(); err != nil {
+			if fatal {
+				logger.Fatal().Err(err).Msg("missing config parts")
+			}
+
+			logger.Error().Err(err).Msg("missing config parts")
+
+			return
+		}
+	} else {
+		logger.Warn().Msg("doesnt do a config requirement check")
+
+		return
 	}
 }
 

cmd/run.go

@@ -11,6 +11,6 @@ var runCmd = &cobra.Command{
 	Short: "Running this thing",
 	Run:   run.Run,
 	PreRun: func(cmd *cobra.Command, args []string) {
-		initConfig()
+		initConfig(true)
 	},
 }

cmd/timer.go

@@ -0,0 +1,21 @@
+package cmd
+
+import (
+	"os"
+
+	"github.com/rs/zerolog"
+	"github.com/rs/zerolog/log"
+	"github.com/spf13/cobra"
+	"go.xsfx.dev/schnutibox/pkg/timer"
+)
+
+// nolint:gochecknoglobals
+var timerCmd = &cobra.Command{
+	Use:   "timer",
+	Short: "Handling timer",
+	Run:   timer.Run,
+	PreRun: func(cmd *cobra.Command, args []string) {
+		log.Logger = log.Output(zerolog.ConsoleWriter{Out: os.Stderr})
+		initConfig(false)
+	},
+}

cmd/web.go

@@ -0,0 +1,16 @@
+// nolint:gochecknoglobals
+package cmd
+
+import (
+	"github.com/spf13/cobra"
+	"go.xsfx.dev/schnutibox/pkg/web"
+)
+
+var webCmd = &cobra.Command{
+	Use:   "web",
+	Short: "Starting webservice",
+	Run:   web.Run,
+	PreRun: func(cmd *cobra.Command, args []string) {
+		initConfig(false)
+	},
+}

config.example.yaml

@@ -0,0 +1,17 @@
+---
+Reader:
+  Dev: /dev/hidraw4
+
+Meta:
+  Stop: "0000350934"
+
+Tracks:
+  "0000224543":
+    name: scarlett begonias
+    uris:
+      - "https://ia902608.us.archive.org/3/items/gd1977-05-08.shure57.stevenson.29303.flac16/gd1977-05-08d02t04.ogg"
+
+  "0000195026":
+    name: they love eachother
+    uris:
+      - "https://ia802608.us.archive.org/3/items/gd1977-05-08.shure57.stevenson.29303.flac16/gd1977-05-08d01t05.ogg"

go.mod

@@ -4,22 +4,32 @@ go 1.16
 
 require (
 	github.com/Microsoft/go-winio v0.4.16 // indirect
+	github.com/bufbuild/buf v0.37.0
 	github.com/containerd/continuity v0.0.0-20210208174643-50096c924a4e // indirect
+	github.com/cosmtrek/air v1.27.3
 	github.com/fhs/gompd/v2 v2.2.0
-	github.com/fsnotify/fsnotify v1.4.7
-	github.com/google/go-cmp v0.5.5 // indirect
+	github.com/fsnotify/fsnotify v1.4.9
+	github.com/golang/protobuf v1.5.2
+	github.com/grpc-ecosystem/grpc-gateway/v2 v2.4.0
 	github.com/helloyi/go-sshclient v1.0.0
 	github.com/kballard/go-shellquote v0.0.0-20180428030007-95032a82bc51 // indirect
-	github.com/manifoldco/promptui v0.8.0
 	github.com/moby/term v0.0.0-20201216013528-df9cb8a40635 // indirect
 	github.com/ory/dockertest/v3 v3.6.3
+	github.com/philip-bui/grpc-zerolog v1.0.1
 	github.com/prometheus/client_golang v0.9.3
-	github.com/rs/zerolog v1.21.0
+	github.com/rs/zerolog v1.22.0
 	github.com/spf13/cobra v1.1.3
+	github.com/spf13/pflag v1.0.5
 	github.com/spf13/viper v1.7.0
-	github.com/stretchr/testify v1.4.0
+	github.com/stretchr/testify v1.7.0
 	github.com/tmc/scp v0.0.0-20170824174625-f7b48647feef
+	go.xsfx.dev/don v1.0.0
+	go.xsfx.dev/logginghandler v0.0.4
 	golang.org/x/crypto v0.0.0-20201221181555-eec23a3978ad
-	golang.org/x/sys v0.0.0-20210216224549-f992740a1bac // indirect
+	golang.org/x/net v0.0.0-20210316092652-d523dce5a7f4
+	google.golang.org/genproto v0.0.0-20210426193834-eac7f76ac494
+	google.golang.org/grpc v1.37.0
+	google.golang.org/grpc/cmd/protoc-gen-go-grpc v1.1.0
+	google.golang.org/protobuf v1.26.0
 	gotest.tools/v3 v3.0.3 // indirect
 )

go.sum

@@ -6,11 +6,32 @@ cloud.google.com/go v0.44.1/go.mod h1:iSa0KzasP4Uvy3f1mN/7PiObzGgflwredwwASm/v6A
 cloud.google.com/go v0.44.2/go.mod h1:60680Gw3Yr4ikxnPRS/oxxkBccT6SA1yMk63TGekxKY=
 cloud.google.com/go v0.45.1/go.mod h1:RpBamKRgapWJb87xiFSdk4g1CME7QZg3uwTez+TSTjc=
 cloud.google.com/go v0.46.3/go.mod h1:a6bKKbmY7er1mI7TEI4lsAkts/mkhTSZK8w33B4RAg0=
+cloud.google.com/go v0.50.0/go.mod h1:r9sluTvynVuxRIOHXQEHMFffphuXHOMZMycpNR5e6To=
+cloud.google.com/go v0.52.0/go.mod h1:pXajvRH/6o3+F9jDHZWQ5PbGhn+o8w9qiu/CffaVdO4=
+cloud.google.com/go v0.53.0/go.mod h1:fp/UouUEsRkN6ryDKNW/Upv/JBKnv6WDthjR6+vze6M=
+cloud.google.com/go v0.54.0/go.mod h1:1rq2OEkV3YMf6n/9ZvGWI3GWw0VoqH/1x2nd8Is/bPc=
+cloud.google.com/go v0.56.0/go.mod h1:jr7tqZxxKOVYizybht9+26Z/gUq7tiRzu+ACVAMbKVk=
+cloud.google.com/go v0.57.0/go.mod h1:oXiQ6Rzq3RAkkY7N6t3TcE6jE+CIBBbA36lwQ1JyzZs=
+cloud.google.com/go v0.62.0/go.mod h1:jmCYTdRCQuc1PHIIJ/maLInMho30T/Y0M4hTdTShOYc=
+cloud.google.com/go v0.65.0/go.mod h1:O5N8zS7uWy9vkA9vayVHs65eM1ubvY4h553ofrNHObY=
 cloud.google.com/go/bigquery v1.0.1/go.mod h1:i/xbL2UlR5RvWAURpBYZTtm/cXjCha9lbfbpx4poX+o=
+cloud.google.com/go/bigquery v1.3.0/go.mod h1:PjpwJnslEMmckchkHFfq+HTD2DmtT67aNFKH1/VBDHE=
+cloud.google.com/go/bigquery v1.4.0/go.mod h1:S8dzgnTigyfTmLBfrtrhyYhwRxG72rYxvftPBK2Dvzc=
+cloud.google.com/go/bigquery v1.5.0/go.mod h1:snEHRnqQbz117VIFhE8bmtwIDY80NLUZUMb4Nv6dBIg=
+cloud.google.com/go/bigquery v1.7.0/go.mod h1://okPTzCYNXSlb24MZs83e2Do+h+VXtc4gLoIoXIAPc=
+cloud.google.com/go/bigquery v1.8.0/go.mod h1:J5hqkt3O0uAFnINi6JXValWIb1v0goeZM77hZzJN/fQ=
 cloud.google.com/go/datastore v1.0.0/go.mod h1:LXYbyblFSglQ5pkeyhO+Qmw7ukd3C+pD7TKLgZqpHYE=
+cloud.google.com/go/datastore v1.1.0/go.mod h1:umbIZjpQpHh4hmRpGhH4tLFup+FVzqBi1b3c64qFpCk=
 cloud.google.com/go/firestore v1.1.0/go.mod h1:ulACoGHTpvq5r8rxGJ4ddJZBZqakUQqClKRT5SZwBmk=
 cloud.google.com/go/pubsub v1.0.1/go.mod h1:R0Gpsv3s54REJCy4fxDixWD93lHJMoZTyQ2kNxGRt3I=
+cloud.google.com/go/pubsub v1.1.0/go.mod h1:EwwdRX2sKPjnvnqCa270oGRyludottCI76h+R3AArQw=
+cloud.google.com/go/pubsub v1.2.0/go.mod h1:jhfEVHT8odbXTkndysNHCcx0awwzvfOlguIAii9o8iA=
+cloud.google.com/go/pubsub v1.3.1/go.mod h1:i+ucay31+CNRpDW4Lu78I4xXG+O1r/MAHgjpRVR+TSU=
 cloud.google.com/go/storage v1.0.0/go.mod h1:IhtSnM/ZTZV8YYJWCY8RULGVqBDmpoyjwiyrjsg+URw=
+cloud.google.com/go/storage v1.5.0/go.mod h1:tpKbwo567HUNpVclU5sGELwQWBDZ8gh0ZeosJ0Rtdos=
+cloud.google.com/go/storage v1.6.0/go.mod h1:N7U0C8pVQ/+NIKOBQyamJIeKQKkZ+mxpohlUTyfDhBk=
+cloud.google.com/go/storage v1.8.0/go.mod h1:Wv1Oy7z6Yz3DshWRJFhqM/UCfaWIRTdp0RXyy7KQOVs=
+cloud.google.com/go/storage v1.10.0/go.mod h1:FLPqc6j+Ki4BU591ie1oL6qBQGu2Bl/tZ9ullr3+Kg0=
 dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
 github.com/Azure/go-ansiterm v0.0.0-20170929234023-d6e3b3328b78 h1:w+iIsaOQNcT7OZ575w+acHgRric5iCyQh+xv+KJ4HB8=
 github.com/Azure/go-ansiterm v0.0.0-20170929234023-d6e3b3328b78/go.mod h1:LmzpDX56iTiv29bbRTIsUNlaFfuhWRQBWjQdVyAevI8=
@@ -25,24 +46,29 @@ github.com/Nvveen/Gotty v0.0.0-20120604004816-cd527374f1e5/go.mod h1:lmUJ/7eu/Q8
 github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
 github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
 github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
+github.com/antihax/optional v1.0.0/go.mod h1:uupD/76wgC+ih3iEmQUL+0Ugr19nfwCT1kdvxnR2qWY=
 github.com/armon/circbuf v0.0.0-20150827004946-bbbad097214e/go.mod h1:3U/XgcO3hCbHZ8TKRvWD2dDTCfh9M9ya+I9JpbB7O8o=
 github.com/armon/go-metrics v0.0.0-20180917152333-f0300d1749da/go.mod h1:Q73ZrmVTwzkszR9V5SSuryQ31EELlFMUz1kKyl939pY=
 github.com/armon/go-radix v0.0.0-20180808171621-7fddfc383310/go.mod h1:ufUuZ+zHj4x4TnLV4JWEpy2hxWSpsRywHrMgIH9cCH8=
 github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
 github.com/beorn7/perks v1.0.0 h1:HWo1m869IqiPhD389kmkxeTalrjNbbJTC8LXupb+sl0=
 github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8=
+github.com/bgentry/go-netrc v0.0.0-20140422174119-9fd32a8b3d3d h1:xDfNPAt8lFiC1UJrqV3uuy861HCTo708pDMbjHHdCas=
+github.com/bgentry/go-netrc v0.0.0-20140422174119-9fd32a8b3d3d/go.mod h1:6QX/PXZ00z/TKoufEY6K/a0k6AhaJrQKdFe6OfVXsa4=
 github.com/bgentry/speakeasy v0.1.0/go.mod h1:+zsyZBPWlz7T6j88CTgSN5bM796AkVf0kBD4zp0CCIs=
 github.com/bketelsen/crypt v0.0.3-0.20200106085610-5cbc8cc4026c/go.mod h1:MKsuJmJgSg28kpZDP6UIiPt0e0Oz0kqKNGyRaWEPv84=
+github.com/bufbuild/buf v0.37.0 h1:11zJVA0D4uJVGOC9h+oOVHrKKoBgMYIqJJ0d1Xt6oeQ=
+github.com/bufbuild/buf v0.37.0/go.mod h1:lQ1m2HkIaGOFba6w/aC3KYBHhKEOESP3gaAEpS3dAFM=
 github.com/cenkalti/backoff/v3 v3.0.0 h1:ske+9nBpD9qZsTBoF41nW5L+AIuFBKMeze18XQ3eG1c=
 github.com/cenkalti/backoff/v3 v3.0.0/go.mod h1:cIeZDE3IrqwwJl6VUwCN6trj1oXrTS4rc0ij+ULvLYs=
+github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
 github.com/cespare/xxhash v1.1.0/go.mod h1:XrSqR1VqqWfGrhpAt58auRo0WTKS1nRRg3ghfAqPWnc=
-github.com/chzyer/logex v1.1.10 h1:Swpa1K6QvQznwJRcfTfQJmTE72DqScAa40E+fbHEXEE=
 github.com/chzyer/logex v1.1.10/go.mod h1:+Ywpsq7O8HXn0nuIou7OrIPyXbp3wmkHB+jjWRnGsAI=
-github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e h1:fY5BOSpyZCqRo5OhCuC+XN+r/bBCmeuuJtjz+bCNIf8=
 github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e/go.mod h1:nSuG5e5PlCu98SY8svDHJxuZscDgtXS6KTTbou5AhLI=
-github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1 h1:q763qf9huN11kDQavWsoZXJNW3xEE4JJyHa5Q25/sd8=
 github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMnBNeIyt5eFwwo7qiLfzFZmjNmxjkiQlU=
 github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
+github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGXZJjfX53e64911xZQV5JYwmTeXPW+k8Sc=
+github.com/cncf/udpa/go v0.0.0-20201120205902-5459f2c99403/go.mod h1:WmhPx2Nbnhtbo57+VJT5O0JRkEi1Wbu0z5j0R8u5Hbk=
 github.com/containerd/continuity v0.0.0-20190827140505-75bee3e2ccb6/go.mod h1:GL3xCUCBDV3CZiTSEKksMWbLE66hEyuu9qyDOOqM47Y=
 github.com/containerd/continuity v0.0.0-20210208174643-50096c924a4e h1:6JKvHHt396/qabvMhnhUZvWaHZzfVfldxE60TK8YLhg=
 github.com/containerd/continuity v0.0.0-20210208174643-50096c924a4e/go.mod h1:EXlVlkqNba9rJe3j7w3Xa924itAMLgZH4UD/Q4PExuQ=
@@ -51,6 +77,8 @@ github.com/coreos/etcd v3.3.13+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc
 github.com/coreos/go-semver v0.3.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=
 github.com/coreos/go-systemd v0.0.0-20190321100706-95778dfbb74e/go.mod h1:F5haX7vjVVG0kc13fIWeqUViNPyEJxv/OmvnBo0Yme4=
 github.com/coreos/pkg v0.0.0-20180928190104-399ea9e2e55f/go.mod h1:E3G3o1h8I7cfcXa63jLwjI0eiQQMgzzUDFVpN/nH/eA=
+github.com/cosmtrek/air v1.27.3 h1:laO93SnYnEiJsH0QIeXyso6FJ5maSNufE5d/MmHKBmk=
+github.com/cosmtrek/air v1.27.3/go.mod h1:vrGZm+zmL5htsEr6YjqLXyjSoelgDQIl/DuOtsWVLeU=
 github.com/cpuguy83/go-md2man/v2 v2.0.0/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU=
 github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
 github.com/creack/pty v1.1.11 h1:07n33Z8lZxZ2qwegKbObQohDhXDQxiMMz1NOUGYlesw=
@@ -65,47 +93,103 @@ github.com/docker/go-connections v0.4.0/go.mod h1:Gbd7IOopHjR8Iph03tsViu4nIes5Xh
 github.com/docker/go-units v0.4.0 h1:3uh0PgVws3nIA0Q+MwDC8yjEPf9zjRfZZWXZYDct3Tw=
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@@ -153,17 +245,14 @@ github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
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@@ -182,6 +271,7 @@ github.com/moby/term v0.0.0-20201216013528-df9cb8a40635/go.mod h1:FBS0z0QWA44HXy
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@@ -193,12 +283,17 @@ github.com/opencontainers/runc v1.0.0-rc9/go.mod h1:qT5XzbpPznkRYVz/mWwUaVBUv2rm
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@@ -206,8 +301,9 @@ github.com/prometheus/client_golang v0.9.1/go.mod h1:7SWBe2y4D6OKWSNQJUaRYU/AaXP
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@@ -240,6 +338,7 @@ github.com/spf13/afero v1.1.2/go.mod h1:j4pytiNVoe2o6bmDsKpLACNPDBIoEAkihy7loJ1B
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@@ -251,24 +350,51 @@ github.com/spf13/pflag v1.0.5/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An
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@@ -283,6 +409,11 @@ golang.org/x/exp v0.0.0-20190306152737-a1d7652674e8/go.mod h1:CJ0aWSM057203Lf6IL
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@@ -292,10 +423,19 @@ golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHl
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@@ -312,17 +452,42 @@ golang.org/x/net v0.0.0-20190501004415-9ce7a6920f09/go.mod h1:t9HGtf8HONx5eT2rtn
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@@ -330,7 +495,6 @@ golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33/go.mod h1:STP8DvDyc/dI5b8T5h
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@@ -339,23 +503,49 @@ golang.org/x/sys v0.0.0-20190502145724-3ef323f4f1fd/go.mod h1:h1NjWce9XRLGQEsW7w
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+google.golang.org/genproto v0.0.0-20200618031413-b414f8b61790/go.mod h1:jDfRM7FcilCzHH/e9qn6dsT145K34l5v+OpcnNgKAAA=
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 google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
 google.golang.org/grpc v1.20.1/go.mod h1:10oTOabMzJvdu6/UiuZezV6QK5dSlG84ov/aaiqXj38=
 google.golang.org/grpc v1.21.1/go.mod h1:oYelfM1adQP15Ek0mdvEgi9Df8B9CZIaU1084ijfRaM=
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+google.golang.org/protobuf v1.20.1-0.20200309200217-e05f789c0967/go.mod h1:A+miEFZTKqfCUM6K7xSMQL9OKL/b6hQv+e19PK+JZNE=
+google.golang.org/protobuf v1.21.0/go.mod h1:47Nbq4nVaFHyn7ilMalzfO3qCViNmqZ2kzikPIcrTAo=
+google.golang.org/protobuf v1.22.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
+google.golang.org/protobuf v1.23.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
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+google.golang.org/protobuf v1.25.1-0.20201208041424-160c7477e0e8/go.mod h1:hFxJC2f0epmp1elRCiEGJTKAWbwxZ2nvqZdHl3FQXCY=
+google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
+google.golang.org/protobuf v1.26.0 h1:bxAC2xTBsZGibn2RTntX0oH50xLsqy1OxA9tTL3p/lk=
+google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
 gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 h1:qIbj1fsPNlZgppZ+VLlY7N33q108Sa+fhmuc+sWQYwY=
@@ -414,13 +704,23 @@ gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.7/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
 gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b h1:h8qDotaEPuJATrMmW04NCwg7v22aHH28wwpauUhK9Oo=
+gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gotest.tools/v3 v3.0.2/go.mod h1:3SzNCllyD9/Y+b5r9JIKQ474KzkZyqLqEfYqMsX94Bk=
 gotest.tools/v3 v3.0.3 h1:4AuOwCGf4lLR9u3YOe2awrHygurzhO/HeQ6laiA6Sx0=
 gotest.tools/v3 v3.0.3/go.mod h1:Z7Lb0S5l+klDB31fvDQX8ss/FlKDxtlFlw3Oa8Ymbl8=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
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+honnef.co/go/tools v0.0.1-2020.1.3/go.mod h1:X/FiERA/W4tHapMX5mGpAtMSVEeEUOyHaw9vFzvIQ3k=
+honnef.co/go/tools v0.0.1-2020.1.4 h1:UoveltGrhghAA7ePc+e+QYDHXrBps2PqFZiHkGR/xK8=
+honnef.co/go/tools v0.0.1-2020.1.4/go.mod h1:X/FiERA/W4tHapMX5mGpAtMSVEeEUOyHaw9vFzvIQ3k=
 rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=
+rsc.io/quote/v3 v3.1.0/go.mod h1:yEA65RcK8LyAZtP9Kv3t0HmxON59tX3rD+tICJqUlj0=
+rsc.io/sampler v1.3.0/go.mod h1:T1hPZKmBbMNahiBKFy5HrXp6adAjACjK9JXDnKaTXpA=

integration_test.go

@@ -12,18 +12,20 @@ import (
 
 	sshclient "github.com/helloyi/go-sshclient"
 	"github.com/ory/dockertest/v3"
+	dc "github.com/ory/dockertest/v3/docker"
 	"github.com/rs/zerolog"
 	"github.com/rs/zerolog/log"
 	"github.com/tmc/scp"
+	"go.xsfx.dev/don"
 	"golang.org/x/crypto/ssh"
 )
 
 const (
-	sdcard           = "/home/marv/tmp/2021-03-04-raspios-buster-armhf-lite.img"
+	sdcard           = "/SWAP/2021-05-07-raspios-buster-armhf-lite.img"
 	sshUser          = "pi"
 	sshPass          = "raspberry"
-	sshHost          = "localhost"
-	containerTimeout = 5 * time.Minute
+	sshHost          = "docker"
+	containerTimeout = 15 * time.Minute
 )
 
 // Variables used for accessing stuff in the test functions.
@@ -91,32 +93,18 @@ func copySchnutibox(user, pass, host string) error {
 }
 
 // teardown removes some temp test stuff.
-func teardown(img string, pool *dockertest.Pool, resource *dockertest.Resource) {
+func teardown(pool *dockertest.Pool, resource *dockertest.Resource) {
 	log.Info().Msg("getting rid of container")
 
 	if err := pool.Purge(resource); err != nil {
 		log.Fatal().Err(err).Msg("could not cleanup")
 	}
-
-	log.Info().Str("img", img).Msg("deleting temp image")
-
-	if err := os.Remove(img); err != nil {
-		log.Fatal().Err(err).Msg("could not delete temp image")
-	}
 }
 
 // nolint:funlen
 func TestMain(m *testing.M) {
 	log.Logger = log.Output(zerolog.ConsoleWriter{Out: os.Stderr})
 
-	// Create tmp image.
-	img, err := raspbianWorkCopy()
-	if err != nil {
-		log.Error().Err(err).Msg("could not create temp work image")
-	}
-
-	log.Info().Str("img", img).Msg("created temp image file")
-
 	pool, err := dockertest.NewPool("")
 	if err != nil {
 		log.Fatal().Err(err).Msg("could not connect to docker")
@@ -132,8 +120,11 @@ func TestMain(m *testing.M) {
 		&dockertest.RunOptions{
 			Repository:   "lukechilds/dockerpi",
 			Tag:          "vm",
-			Mounts:       []string{img + ":/sdcard/filesystem.img"},
+			Mounts:       []string{sdcard + ":/sdcard/filesystem.img"},
 			ExposedPorts: []string{"5022/tcp"},
+			PortBindings: map[dc.Port][]dc.PortBinding{
+				"5022/tcp": {{HostIP: "0.0.0.0", HostPort: "5022"}},
+			},
 		})
 	if err != nil {
 		log.Fatal().Err(err).Msg("could not start resource")
@@ -144,37 +135,26 @@ func TestMain(m *testing.M) {
 
 	sshConn = sshHost + ":" + resource.GetPort("5022/tcp")
 
-	// Channels for checking readyness of the container.
-	sshReady := make(chan struct{})
-	sshError := make(chan error)
-
-	// Constant check for readyness of container.
-	go func() {
-		for {
+	// Readiness.
+	if err := don.Check(
+		func() bool {
 			client, err := sshclient.DialWithPasswd(sshConn, sshUser, sshPass)
 			if err == nil {
 				if err := client.Close(); err != nil {
-					sshError <- err
+					return false
 				}
-				sshReady <- struct{}{}
+
+				return true
 			}
 
-			log.Debug().Msg("container not ready yet")
-			time.Sleep(5 * time.Second)
-		}
-	}()
-
-	select {
-	case err := <-sshError:
-		log.Error().Err(err).Msg("could not connect to container via ssh")
-		teardown(img, pool, resource)
+			return false
+		},
+		20*time.Minute,
+		15*time.Second,
+	); err != nil {
+		log.Error().Err(err).Msg("timeout. could not connect to container via ssh")
+		teardown(pool, resource)
 		os.Exit(1)
-	case <-time.After(containerTimeout):
-		log.Error().Msg("timeout. could not connect to container via ssh")
-		teardown(img, pool, resource)
-		os.Exit(1)
-	case <-sshReady:
-		log.Info().Msg("container is ready")
 	}
 
 	// Connect via SSH.
@@ -183,7 +163,7 @@ func TestMain(m *testing.M) {
 	client, err = sshclient.DialWithPasswd(sshConn, sshUser, sshPass)
 	if err != nil {
 		log.Error().Err(err).Msg("could not connect via ssh")
-		teardown(img, pool, resource)
+		teardown(pool, resource)
 		os.Exit(1)
 	}
 
@@ -196,7 +176,7 @@ func TestMain(m *testing.M) {
 
 	if err := copySchnutibox(sshUser, sshPass, sshConn); err != nil {
 		log.Error().Err(err).Msg("could not copy schnutibox")
-		teardown(img, pool, resource)
+		teardown(pool, resource)
 		os.Exit(1)
 	}
 
@@ -208,7 +188,7 @@ func TestMain(m *testing.M) {
 		SetStdio(os.Stdout, os.Stderr).
 		Run(); err != nil {
 		log.Error().Err(err).Msg("could not create /usr/local/bin on container")
-		teardown(img, pool, resource)
+		teardown(pool, resource)
 		os.Exit(1)
 	}
 
@@ -219,7 +199,7 @@ func TestMain(m *testing.M) {
 	code := m.Run()
 
 	// Removing container.
-	teardown(img, pool, resource)
+	teardown(pool, resource)
 
 	os.Exit(code)
 }

internal/config/config.go

@@ -1,21 +1,30 @@
 //nolint:gochecknoglobals,goerr113
 package config
 
-import "fmt"
+import (
+	"fmt"
 
+	api "go.xsfx.dev/schnutibox/pkg/api/v1"
+)
+
+// Cfg stores a global config object.
 var Cfg Config
 
 type Config struct {
+	Debug struct {
+		PPROF bool `mapstructure:"PPROF"`
+	}
+
 	// Reader is used to configure the RFID Reader.
 	Reader struct {
 		Dev string `mapstructure:"Dev"`
 	} `mapstructure:"Reader"`
 
-	// Box is used to configure a webinterface.
-	Box struct {
+	// Web is used to configure the webinterface.
+	Web struct {
 		Hostname string `mapstructure:"Hostname"`
 		Port     int    `mapstructure:"Port"`
-	} `mapstructure:"Box"`
+	} `mapstructure:"Web"`
 
 	// MPD contains the connection details for the Music Player Daemon.
 	MPD struct {
@@ -29,10 +38,7 @@ type Config struct {
 	} `mapstructure:"Meta"`
 
 	// Tracks contains all RFID's and its MPD URLs.
-	Tracks map[string]struct {
-		Name string   `mapstructure:"Name"`
-		URIS []string `mapstructure:"URIS"`
-	} `mapstructure:"Tracks"`
+	Tracks map[string]api.IdentifyResponse `mapstructure:"Tracks"`
 }
 
 func (c *Config) Require() error {

internal/grpcclient/grpcclient.go

@@ -0,0 +1,18 @@
+package grpcclient
+
+import (
+	"fmt"
+
+	"google.golang.org/grpc"
+)
+
+func Conn(hostname string, port int) (*grpc.ClientConn, error) {
+	var conn *grpc.ClientConn
+
+	conn, err := grpc.Dial(fmt.Sprintf("%s:%d", hostname, port), grpc.WithInsecure())
+	if err != nil {
+		return nil, fmt.Errorf("could not connect: %w", err)
+	}
+
+	return conn, nil
+}

internal/metrics/metrics.go

@@ -4,18 +4,75 @@ package metrics
 import (
 	"github.com/prometheus/client_golang/prometheus"
 	"github.com/prometheus/client_golang/prometheus/promauto"
+	api "go.xsfx.dev/schnutibox/pkg/api/v1"
 )
 
-var (
-	TracksPlayed = promauto.NewCounterVec(
-		prometheus.CounterOpts{
-			Name: "schnutibox_played_tracks_total",
-		},
-		[]string{"rfid", "name"})
+// Plays is a map of tracked plays.
+// Its a map, so its easier to check if the metric is already initialized
+// and usable. The Key string is the RFID identification.
+var Plays = make(map[string]*api.IdentifyResponse)
 
-	BoxErrors = promauto.NewCounter(
-		prometheus.CounterOpts{
-			Name: "schnutbox_errors_total",
-		},
-	)
+// NewPlay initialize a new play metric.
+func NewPlay(rfid, name string, uris []string) {
+	if _, ok := Plays[rfid]; !ok {
+		Plays[rfid] = &api.IdentifyResponse{
+			Name: name,
+			Uris: uris,
+		}
+	}
+}
+
+// Play is the play metric.
+var Play = promauto.NewGaugeVec(
+	prometheus.GaugeOpts{
+		Name: "schnutibox_plays",
+		Help: "play metrics",
+	},
+	[]string{"rfid", "name"},
 )
+
+// Seconds tracks the seconds a play was played.
+var Seconds = promauto.NewCounterVec(
+	prometheus.CounterOpts{
+		Name: "schnutibox_play_seconds_total",
+		Help: "play seconds metrics",
+	},
+	[]string{"rfid", "name"},
+)
+
+// BoxErrors counts schnutibox errors.
+var BoxErrors = promauto.NewCounter(
+	prometheus.CounterOpts{
+		Name: "schnutibox_errors_total",
+		Help: "counter of errors",
+	},
+)
+
+// tracksEqual checks if uris slices are equal.
+// This is needed to search for the right play item.
+func tracksEqual(a, b []string) bool {
+	if len(a) != len(b) {
+		return false
+	}
+
+	for i, v := range a {
+		if v != b[i] {
+			return false
+		}
+	}
+
+	return true
+}
+
+// Set sets `1` on play gauge if item is playing, a `0` on every other play.
+// It also raises the counter for played seconds of a play.
+func Set(uris []string, state string) {
+	for r, p := range Plays {
+		if tracksEqual(uris, p.Uris) && state == "play" {
+			Play.WithLabelValues(r, p.Name).Set(1)
+			Seconds.WithLabelValues(r, p.Name).Inc()
+		} else {
+			Play.WithLabelValues(r, p.Name).Set(0)
+		}
+	}
+}

main.go

@@ -1,5 +1,3 @@
-// thanks to: https://medium.com/coinmonks/iot-tutorial-read-tags-from-a-usb-rfid-reader-with-raspberry-pi-and-node-red-from-scratch-4554836be127
-//nolint:lll,godox
 package main
 
 import (
@@ -9,11 +7,12 @@ import (
 	"github.com/rs/zerolog"
 	"github.com/rs/zerolog/log"
 	"go.xsfx.dev/schnutibox/cmd"
+	"go.xsfx.dev/schnutibox/pkg/sselog"
 )
 
 func main() {
-	// TODO: Using io.MultiWriter here to implement a SSE Logger at some point.
-	log.Logger = zerolog.New(io.MultiWriter(os.Stderr)).With().Caller().Logger()
+	sselog.Log = sselog.NewSSELog()
+	log.Logger = zerolog.New(io.MultiWriter(zerolog.ConsoleWriter{Out: os.Stderr}, sselog.Log)).With().Caller().Logger()
 
 	cmd.Execute()
 }

pkg/api/v1/google/api/annotations.pb.go

@@ -0,0 +1,118 @@
+// Copyright 2015 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// versions:
+// 	protoc-gen-go v1.26.0
+// 	protoc        v3.13.0
+// source: google/api/annotations.proto
+
+package annotations
+
+import (
+	descriptor "github.com/golang/protobuf/protoc-gen-go/descriptor"
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+	reflect "reflect"
+)
+
+const (
+	// Verify that this generated code is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
+	// Verify that runtime/protoimpl is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
+)
+
+var file_google_api_annotations_proto_extTypes = []protoimpl.ExtensionInfo{
+	{
+		ExtendedType:  (*descriptor.MethodOptions)(nil),
+		ExtensionType: (*HttpRule)(nil),
+		Field:         72295728,
+		Name:          "google.api.http",
+		Tag:           "bytes,72295728,opt,name=http",
+		Filename:      "google/api/annotations.proto",
+	},
+}
+
+// Extension fields to descriptor.MethodOptions.
+var (
+	// See `HttpRule`.
+	//
+	// optional google.api.HttpRule http = 72295728;
+	E_Http = &file_google_api_annotations_proto_extTypes[0]
+)
+
+var File_google_api_annotations_proto protoreflect.FileDescriptor
+
+var file_google_api_annotations_proto_rawDesc = []byte{
+	0x0a, 0x1c, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2f, 0x61, 0x70, 0x69, 0x2f, 0x61, 0x6e, 0x6e,
+	0x6f, 0x74, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x73, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12, 0x0a,
+	0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x61, 0x70, 0x69, 0x1a, 0x15, 0x67, 0x6f, 0x6f, 0x67,
+	0x6c, 0x65, 0x2f, 0x61, 0x70, 0x69, 0x2f, 0x68, 0x74, 0x74, 0x70, 0x2e, 0x70, 0x72, 0x6f, 0x74,
+	0x6f, 0x1a, 0x20, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2f, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62,
+	0x75, 0x66, 0x2f, 0x64, 0x65, 0x73, 0x63, 0x72, 0x69, 0x70, 0x74, 0x6f, 0x72, 0x2e, 0x70, 0x72,
+	0x6f, 0x74, 0x6f, 0x3a, 0x4b, 0x0a, 0x04, 0x68, 0x74, 0x74, 0x70, 0x12, 0x1e, 0x2e, 0x67, 0x6f,
+	0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66, 0x2e, 0x4d, 0x65,
+	0x74, 0x68, 0x6f, 0x64, 0x4f, 0x70, 0x74, 0x69, 0x6f, 0x6e, 0x73, 0x18, 0xb0, 0xca, 0xbc, 0x22,
+	0x20, 0x01, 0x28, 0x0b, 0x32, 0x14, 0x2e, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x61, 0x70,
+	0x69, 0x2e, 0x48, 0x74, 0x74, 0x70, 0x52, 0x75, 0x6c, 0x65, 0x52, 0x04, 0x68, 0x74, 0x74, 0x70,
+	0x42, 0x6e, 0x0a, 0x0e, 0x63, 0x6f, 0x6d, 0x2e, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x61,
+	0x70, 0x69, 0x42, 0x10, 0x41, 0x6e, 0x6e, 0x6f, 0x74, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x73, 0x50,
+	0x72, 0x6f, 0x74, 0x6f, 0x50, 0x01, 0x5a, 0x41, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x67,
+	0x6f, 0x6c, 0x61, 0x6e, 0x67, 0x2e, 0x6f, 0x72, 0x67, 0x2f, 0x67, 0x65, 0x6e, 0x70, 0x72, 0x6f,
+	0x74, 0x6f, 0x2f, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x61, 0x70, 0x69, 0x73, 0x2f, 0x61, 0x70,
+	0x69, 0x2f, 0x61, 0x6e, 0x6e, 0x6f, 0x74, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x73, 0x3b, 0x61, 0x6e,
+	0x6e, 0x6f, 0x74, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x73, 0xa2, 0x02, 0x04, 0x47, 0x41, 0x50, 0x49,
+	0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
+}
+
+var file_google_api_annotations_proto_goTypes = []interface{}{
+	(*descriptor.MethodOptions)(nil), // 0: google.protobuf.MethodOptions
+	(*HttpRule)(nil),                 // 1: google.api.HttpRule
+}
+var file_google_api_annotations_proto_depIdxs = []int32{
+	0, // 0: google.api.http:extendee -> google.protobuf.MethodOptions
+	1, // 1: google.api.http:type_name -> google.api.HttpRule
+	2, // [2:2] is the sub-list for method output_type
+	2, // [2:2] is the sub-list for method input_type
+	1, // [1:2] is the sub-list for extension type_name
+	0, // [0:1] is the sub-list for extension extendee
+	0, // [0:0] is the sub-list for field type_name
+}
+
+func init() { file_google_api_annotations_proto_init() }
+func file_google_api_annotations_proto_init() {
+	if File_google_api_annotations_proto != nil {
+		return
+	}
+	file_google_api_http_proto_init()
+	type x struct{}
+	out := protoimpl.TypeBuilder{
+		File: protoimpl.DescBuilder{
+			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
+			RawDescriptor: file_google_api_annotations_proto_rawDesc,
+			NumEnums:      0,
+			NumMessages:   0,
+			NumExtensions: 1,
+			NumServices:   0,
+		},
+		GoTypes:           file_google_api_annotations_proto_goTypes,
+		DependencyIndexes: file_google_api_annotations_proto_depIdxs,
+		ExtensionInfos:    file_google_api_annotations_proto_extTypes,
+	}.Build()
+	File_google_api_annotations_proto = out.File
+	file_google_api_annotations_proto_rawDesc = nil
+	file_google_api_annotations_proto_goTypes = nil
+	file_google_api_annotations_proto_depIdxs = nil
+}

pkg/api/v1/google/api/http.pb.go

@@ -0,0 +1,777 @@
+// Copyright 2015 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// versions:
+// 	protoc-gen-go v1.26.0
+// 	protoc        v3.13.0
+// source: google/api/http.proto
+
+package annotations
+
+import (
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+	reflect "reflect"
+	sync "sync"
+)
+
+const (
+	// Verify that this generated code is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
+	// Verify that runtime/protoimpl is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
+)
+
+// Defines the HTTP configuration for an API service. It contains a list of
+// [HttpRule][google.api.HttpRule], each specifying the mapping of an RPC method
+// to one or more HTTP REST API methods.
+type Http struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	// A list of HTTP configuration rules that apply to individual API methods.
+	//
+	// **NOTE:** All service configuration rules follow "last one wins" order.
+	Rules []*HttpRule `protobuf:"bytes,1,rep,name=rules,proto3" json:"rules,omitempty"`
+	// When set to true, URL path parameters will be fully URI-decoded except in
+	// cases of single segment matches in reserved expansion, where "%2F" will be
+	// left encoded.
+	//
+	// The default behavior is to not decode RFC 6570 reserved characters in multi
+	// segment matches.
+	FullyDecodeReservedExpansion bool `protobuf:"varint,2,opt,name=fully_decode_reserved_expansion,json=fullyDecodeReservedExpansion,proto3" json:"fully_decode_reserved_expansion,omitempty"`
+}
+
+func (x *Http) Reset() {
+	*x = Http{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_google_api_http_proto_msgTypes[0]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *Http) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Http) ProtoMessage() {}
+
+func (x *Http) ProtoReflect() protoreflect.Message {
+	mi := &file_google_api_http_proto_msgTypes[0]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use Http.ProtoReflect.Descriptor instead.
+func (*Http) Descriptor() ([]byte, []int) {
+	return file_google_api_http_proto_rawDescGZIP(), []int{0}
+}
+
+func (x *Http) GetRules() []*HttpRule {
+	if x != nil {
+		return x.Rules
+	}
+	return nil
+}
+
+func (x *Http) GetFullyDecodeReservedExpansion() bool {
+	if x != nil {
+		return x.FullyDecodeReservedExpansion
+	}
+	return false
+}
+
+// # gRPC Transcoding
+//
+// gRPC Transcoding is a feature for mapping between a gRPC method and one or
+// more HTTP REST endpoints. It allows developers to build a single API service
+// that supports both gRPC APIs and REST APIs. Many systems, including [Google
+// APIs](https://github.com/googleapis/googleapis),
+// [Cloud Endpoints](https://cloud.google.com/endpoints), [gRPC
+// Gateway](https://github.com/grpc-ecosystem/grpc-gateway),
+// and [Envoy](https://github.com/envoyproxy/envoy) proxy support this feature
+// and use it for large scale production services.
+//
+// `HttpRule` defines the schema of the gRPC/REST mapping. The mapping specifies
+// how different portions of the gRPC request message are mapped to the URL
+// path, URL query parameters, and HTTP request body. It also controls how the
+// gRPC response message is mapped to the HTTP response body. `HttpRule` is
+// typically specified as an `google.api.http` annotation on the gRPC method.
+//
+// Each mapping specifies a URL path template and an HTTP method. The path
+// template may refer to one or more fields in the gRPC request message, as long
+// as each field is a non-repeated field with a primitive (non-message) type.
+// The path template controls how fields of the request message are mapped to
+// the URL path.
+//
+// Example:
+//
+//     service Messaging {
+//       rpc GetMessage(GetMessageRequest) returns (Message) {
+//         option (google.api.http) = {
+//             get: "/v1/{name=messages/*}"
+//         };
+//       }
+//     }
+//     message GetMessageRequest {
+//       string name = 1; // Mapped to URL path.
+//     }
+//     message Message {
+//       string text = 1; // The resource content.
+//     }
+//
+// This enables an HTTP REST to gRPC mapping as below:
+//
+// HTTP | gRPC
+// -----|-----
+// `GET /v1/messages/123456`  | `GetMessage(name: "messages/123456")`
+//
+// Any fields in the request message which are not bound by the path template
+// automatically become HTTP query parameters if there is no HTTP request body.
+// For example:
+//
+//     service Messaging {
+//       rpc GetMessage(GetMessageRequest) returns (Message) {
+//         option (google.api.http) = {
+//             get:"/v1/messages/{message_id}"
+//         };
+//       }
+//     }
+//     message GetMessageRequest {
+//       message SubMessage {
+//         string subfield = 1;
+//       }
+//       string message_id = 1; // Mapped to URL path.
+//       int64 revision = 2;    // Mapped to URL query parameter `revision`.
+//       SubMessage sub = 3;    // Mapped to URL query parameter `sub.subfield`.
+//     }
+//
+// This enables a HTTP JSON to RPC mapping as below:
+//
+// HTTP | gRPC
+// -----|-----
+// `GET /v1/messages/123456?revision=2&sub.subfield=foo` |
+// `GetMessage(message_id: "123456" revision: 2 sub: SubMessage(subfield:
+// "foo"))`
+//
+// Note that fields which are mapped to URL query parameters must have a
+// primitive type or a repeated primitive type or a non-repeated message type.
+// In the case of a repeated type, the parameter can be repeated in the URL
+// as `...?param=A&param=B`. In the case of a message type, each field of the
+// message is mapped to a separate parameter, such as
+// `...?foo.a=A&foo.b=B&foo.c=C`.
+//
+// For HTTP methods that allow a request body, the `body` field
+// specifies the mapping. Consider a REST update method on the
+// message resource collection:
+//
+//     service Messaging {
+//       rpc UpdateMessage(UpdateMessageRequest) returns (Message) {
+//         option (google.api.http) = {
+//           patch: "/v1/messages/{message_id}"
+//           body: "message"
+//         };
+//       }
+//     }
+//     message UpdateMessageRequest {
+//       string message_id = 1; // mapped to the URL
+//       Message message = 2;   // mapped to the body
+//     }
+//
+// The following HTTP JSON to RPC mapping is enabled, where the
+// representation of the JSON in the request body is determined by
+// protos JSON encoding:
+//
+// HTTP | gRPC
+// -----|-----
+// `PATCH /v1/messages/123456 { "text": "Hi!" }` | `UpdateMessage(message_id:
+// "123456" message { text: "Hi!" })`
+//
+// The special name `*` can be used in the body mapping to define that
+// every field not bound by the path template should be mapped to the
+// request body.  This enables the following alternative definition of
+// the update method:
+//
+//     service Messaging {
+//       rpc UpdateMessage(Message) returns (Message) {
+//         option (google.api.http) = {
+//           patch: "/v1/messages/{message_id}"
+//           body: "*"
+//         };
+//       }
+//     }
+//     message Message {
+//       string message_id = 1;
+//       string text = 2;
+//     }
+//
+//
+// The following HTTP JSON to RPC mapping is enabled:
+//
+// HTTP | gRPC
+// -----|-----
+// `PATCH /v1/messages/123456 { "text": "Hi!" }` | `UpdateMessage(message_id:
+// "123456" text: "Hi!")`
+//
+// Note that when using `*` in the body mapping, it is not possible to
+// have HTTP parameters, as all fields not bound by the path end in
+// the body. This makes this option more rarely used in practice when
+// defining REST APIs. The common usage of `*` is in custom methods
+// which don't use the URL at all for transferring data.
+//
+// It is possible to define multiple HTTP methods for one RPC by using
+// the `additional_bindings` option. Example:
+//
+//     service Messaging {
+//       rpc GetMessage(GetMessageRequest) returns (Message) {
+//         option (google.api.http) = {
+//           get: "/v1/messages/{message_id}"
+//           additional_bindings {
+//             get: "/v1/users/{user_id}/messages/{message_id}"
+//           }
+//         };
+//       }
+//     }
+//     message GetMessageRequest {
+//       string message_id = 1;
+//       string user_id = 2;
+//     }
+//
+// This enables the following two alternative HTTP JSON to RPC mappings:
+//
+// HTTP | gRPC
+// -----|-----
+// `GET /v1/messages/123456` | `GetMessage(message_id: "123456")`
+// `GET /v1/users/me/messages/123456` | `GetMessage(user_id: "me" message_id:
+// "123456")`
+//
+// ## Rules for HTTP mapping
+//
+// 1. Leaf request fields (recursive expansion nested messages in the request
+//    message) are classified into three categories:
+//    - Fields referred by the path template. They are passed via the URL path.
+//    - Fields referred by the [HttpRule.body][google.api.HttpRule.body]. They are passed via the HTTP
+//      request body.
+//    - All other fields are passed via the URL query parameters, and the
+//      parameter name is the field path in the request message. A repeated
+//      field can be represented as multiple query parameters under the same
+//      name.
+//  2. If [HttpRule.body][google.api.HttpRule.body] is "*", there is no URL query parameter, all fields
+//     are passed via URL path and HTTP request body.
+//  3. If [HttpRule.body][google.api.HttpRule.body] is omitted, there is no HTTP request body, all
+//     fields are passed via URL path and URL query parameters.
+//
+// ### Path template syntax
+//
+//     Template = "/" Segments [ Verb ] ;
+//     Segments = Segment { "/" Segment } ;
+//     Segment  = "*" | "**" | LITERAL | Variable ;
+//     Variable = "{" FieldPath [ "=" Segments ] "}" ;
+//     FieldPath = IDENT { "." IDENT } ;
+//     Verb     = ":" LITERAL ;
+//
+// The syntax `*` matches a single URL path segment. The syntax `**` matches
+// zero or more URL path segments, which must be the last part of the URL path
+// except the `Verb`.
+//
+// The syntax `Variable` matches part of the URL path as specified by its
+// template. A variable template must not contain other variables. If a variable
+// matches a single path segment, its template may be omitted, e.g. `{var}`
+// is equivalent to `{var=*}`.
+//
+// The syntax `LITERAL` matches literal text in the URL path. If the `LITERAL`
+// contains any reserved character, such characters should be percent-encoded
+// before the matching.
+//
+// If a variable contains exactly one path segment, such as `"{var}"` or
+// `"{var=*}"`, when such a variable is expanded into a URL path on the client
+// side, all characters except `[-_.~0-9a-zA-Z]` are percent-encoded. The
+// server side does the reverse decoding. Such variables show up in the
+// [Discovery
+// Document](https://developers.google.com/discovery/v1/reference/apis) as
+// `{var}`.
+//
+// If a variable contains multiple path segments, such as `"{var=foo/*}"`
+// or `"{var=**}"`, when such a variable is expanded into a URL path on the
+// client side, all characters except `[-_.~/0-9a-zA-Z]` are percent-encoded.
+// The server side does the reverse decoding, except "%2F" and "%2f" are left
+// unchanged. Such variables show up in the
+// [Discovery
+// Document](https://developers.google.com/discovery/v1/reference/apis) as
+// `{+var}`.
+//
+// ## Using gRPC API Service Configuration
+//
+// gRPC API Service Configuration (service config) is a configuration language
+// for configuring a gRPC service to become a user-facing product. The
+// service config is simply the YAML representation of the `google.api.Service`
+// proto message.
+//
+// As an alternative to annotating your proto file, you can configure gRPC
+// transcoding in your service config YAML files. You do this by specifying a
+// `HttpRule` that maps the gRPC method to a REST endpoint, achieving the same
+// effect as the proto annotation. This can be particularly useful if you
+// have a proto that is reused in multiple services. Note that any transcoding
+// specified in the service config will override any matching transcoding
+// configuration in the proto.
+//
+// Example:
+//
+//     http:
+//       rules:
+//         # Selects a gRPC method and applies HttpRule to it.
+//         - selector: example.v1.Messaging.GetMessage
+//           get: /v1/messages/{message_id}/{sub.subfield}
+//
+// ## Special notes
+//
+// When gRPC Transcoding is used to map a gRPC to JSON REST endpoints, the
+// proto to JSON conversion must follow the [proto3
+// specification](https://developers.google.com/protocol-buffers/docs/proto3#json).
+//
+// While the single segment variable follows the semantics of
+// [RFC 6570](https://tools.ietf.org/html/rfc6570) Section 3.2.2 Simple String
+// Expansion, the multi segment variable **does not** follow RFC 6570 Section
+// 3.2.3 Reserved Expansion. The reason is that the Reserved Expansion
+// does not expand special characters like `?` and `#`, which would lead
+// to invalid URLs. As the result, gRPC Transcoding uses a custom encoding
+// for multi segment variables.
+//
+// The path variables **must not** refer to any repeated or mapped field,
+// because client libraries are not capable of handling such variable expansion.
+//
+// The path variables **must not** capture the leading "/" character. The reason
+// is that the most common use case "{var}" does not capture the leading "/"
+// character. For consistency, all path variables must share the same behavior.
+//
+// Repeated message fields must not be mapped to URL query parameters, because
+// no client library can support such complicated mapping.
+//
+// If an API needs to use a JSON array for request or response body, it can map
+// the request or response body to a repeated field. However, some gRPC
+// Transcoding implementations may not support this feature.
+type HttpRule struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	// Selects a method to which this rule applies.
+	//
+	// Refer to [selector][google.api.DocumentationRule.selector] for syntax details.
+	Selector string `protobuf:"bytes,1,opt,name=selector,proto3" json:"selector,omitempty"`
+	// Determines the URL pattern is matched by this rules. This pattern can be
+	// used with any of the {get|put|post|delete|patch} methods. A custom method
+	// can be defined using the 'custom' field.
+	//
+	// Types that are assignable to Pattern:
+	//	*HttpRule_Get
+	//	*HttpRule_Put
+	//	*HttpRule_Post
+	//	*HttpRule_Delete
+	//	*HttpRule_Patch
+	//	*HttpRule_Custom
+	Pattern isHttpRule_Pattern `protobuf_oneof:"pattern"`
+	// The name of the request field whose value is mapped to the HTTP request
+	// body, or `*` for mapping all request fields not captured by the path
+	// pattern to the HTTP body, or omitted for not having any HTTP request body.
+	//
+	// NOTE: the referred field must be present at the top-level of the request
+	// message type.
+	Body string `protobuf:"bytes,7,opt,name=body,proto3" json:"body,omitempty"`
+	// Optional. The name of the response field whose value is mapped to the HTTP
+	// response body. When omitted, the entire response message will be used
+	// as the HTTP response body.
+	//
+	// NOTE: The referred field must be present at the top-level of the response
+	// message type.
+	ResponseBody string `protobuf:"bytes,12,opt,name=response_body,json=responseBody,proto3" json:"response_body,omitempty"`
+	// Additional HTTP bindings for the selector. Nested bindings must
+	// not contain an `additional_bindings` field themselves (that is,
+	// the nesting may only be one level deep).
+	AdditionalBindings []*HttpRule `protobuf:"bytes,11,rep,name=additional_bindings,json=additionalBindings,proto3" json:"additional_bindings,omitempty"`
+}
+
+func (x *HttpRule) Reset() {
+	*x = HttpRule{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_google_api_http_proto_msgTypes[1]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *HttpRule) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*HttpRule) ProtoMessage() {}
+
+func (x *HttpRule) ProtoReflect() protoreflect.Message {
+	mi := &file_google_api_http_proto_msgTypes[1]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use HttpRule.ProtoReflect.Descriptor instead.
+func (*HttpRule) Descriptor() ([]byte, []int) {
+	return file_google_api_http_proto_rawDescGZIP(), []int{1}
+}
+
+func (x *HttpRule) GetSelector() string {
+	if x != nil {
+		return x.Selector
+	}
+	return ""
+}
+
+func (m *HttpRule) GetPattern() isHttpRule_Pattern {
+	if m != nil {
+		return m.Pattern
+	}
+	return nil
+}
+
+func (x *HttpRule) GetGet() string {
+	if x, ok := x.GetPattern().(*HttpRule_Get); ok {
+		return x.Get
+	}
+	return ""
+}
+
+func (x *HttpRule) GetPut() string {
+	if x, ok := x.GetPattern().(*HttpRule_Put); ok {
+		return x.Put
+	}
+	return ""
+}
+
+func (x *HttpRule) GetPost() string {
+	if x, ok := x.GetPattern().(*HttpRule_Post); ok {
+		return x.Post
+	}
+	return ""
+}
+
+func (x *HttpRule) GetDelete() string {
+	if x, ok := x.GetPattern().(*HttpRule_Delete); ok {
+		return x.Delete
+	}
+	return ""
+}
+
+func (x *HttpRule) GetPatch() string {
+	if x, ok := x.GetPattern().(*HttpRule_Patch); ok {
+		return x.Patch
+	}
+	return ""
+}
+
+func (x *HttpRule) GetCustom() *CustomHttpPattern {
+	if x, ok := x.GetPattern().(*HttpRule_Custom); ok {
+		return x.Custom
+	}
+	return nil
+}
+
+func (x *HttpRule) GetBody() string {
+	if x != nil {
+		return x.Body
+	}
+	return ""
+}
+
+func (x *HttpRule) GetResponseBody() string {
+	if x != nil {
+		return x.ResponseBody
+	}
+	return ""
+}
+
+func (x *HttpRule) GetAdditionalBindings() []*HttpRule {
+	if x != nil {
+		return x.AdditionalBindings
+	}
+	return nil
+}
+
+type isHttpRule_Pattern interface {
+	isHttpRule_Pattern()
+}
+
+type HttpRule_Get struct {
+	// Maps to HTTP GET. Used for listing and getting information about
+	// resources.
+	Get string `protobuf:"bytes,2,opt,name=get,proto3,oneof"`
+}
+
+type HttpRule_Put struct {
+	// Maps to HTTP PUT. Used for replacing a resource.
+	Put string `protobuf:"bytes,3,opt,name=put,proto3,oneof"`
+}
+
+type HttpRule_Post struct {
+	// Maps to HTTP POST. Used for creating a resource or performing an action.
+	Post string `protobuf:"bytes,4,opt,name=post,proto3,oneof"`
+}
+
+type HttpRule_Delete struct {
+	// Maps to HTTP DELETE. Used for deleting a resource.
+	Delete string `protobuf:"bytes,5,opt,name=delete,proto3,oneof"`
+}
+
+type HttpRule_Patch struct {
+	// Maps to HTTP PATCH. Used for updating a resource.
+	Patch string `protobuf:"bytes,6,opt,name=patch,proto3,oneof"`
+}
+
+type HttpRule_Custom struct {
+	// The custom pattern is used for specifying an HTTP method that is not
+	// included in the `pattern` field, such as HEAD, or "*" to leave the
+	// HTTP method unspecified for this rule. The wild-card rule is useful
+	// for services that provide content to Web (HTML) clients.
+	Custom *CustomHttpPattern `protobuf:"bytes,8,opt,name=custom,proto3,oneof"`
+}
+
+func (*HttpRule_Get) isHttpRule_Pattern() {}
+
+func (*HttpRule_Put) isHttpRule_Pattern() {}
+
+func (*HttpRule_Post) isHttpRule_Pattern() {}
+
+func (*HttpRule_Delete) isHttpRule_Pattern() {}
+
+func (*HttpRule_Patch) isHttpRule_Pattern() {}
+
+func (*HttpRule_Custom) isHttpRule_Pattern() {}
+
+// A custom pattern is used for defining custom HTTP verb.
+type CustomHttpPattern struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	// The name of this custom HTTP verb.
+	Kind string `protobuf:"bytes,1,opt,name=kind,proto3" json:"kind,omitempty"`
+	// The path matched by this custom verb.
+	Path string `protobuf:"bytes,2,opt,name=path,proto3" json:"path,omitempty"`
+}
+
+func (x *CustomHttpPattern) Reset() {
+	*x = CustomHttpPattern{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_google_api_http_proto_msgTypes[2]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *CustomHttpPattern) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*CustomHttpPattern) ProtoMessage() {}
+
+func (x *CustomHttpPattern) ProtoReflect() protoreflect.Message {
+	mi := &file_google_api_http_proto_msgTypes[2]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use CustomHttpPattern.ProtoReflect.Descriptor instead.
+func (*CustomHttpPattern) Descriptor() ([]byte, []int) {
+	return file_google_api_http_proto_rawDescGZIP(), []int{2}
+}
+
+func (x *CustomHttpPattern) GetKind() string {
+	if x != nil {
+		return x.Kind
+	}
+	return ""
+}
+
+func (x *CustomHttpPattern) GetPath() string {
+	if x != nil {
+		return x.Path
+	}
+	return ""
+}
+
+var File_google_api_http_proto protoreflect.FileDescriptor
+
+var file_google_api_http_proto_rawDesc = []byte{
+	0x0a, 0x15, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2f, 0x61, 0x70, 0x69, 0x2f, 0x68, 0x74, 0x74,
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+	0x47, 0x41, 0x50, 0x49, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
+}
+
+var (
+	file_google_api_http_proto_rawDescOnce sync.Once
+	file_google_api_http_proto_rawDescData = file_google_api_http_proto_rawDesc
+)
+
+func file_google_api_http_proto_rawDescGZIP() []byte {
+	file_google_api_http_proto_rawDescOnce.Do(func() {
+		file_google_api_http_proto_rawDescData = protoimpl.X.CompressGZIP(file_google_api_http_proto_rawDescData)
+	})
+	return file_google_api_http_proto_rawDescData
+}
+
+var file_google_api_http_proto_msgTypes = make([]protoimpl.MessageInfo, 3)
+var file_google_api_http_proto_goTypes = []interface{}{
+	(*Http)(nil),              // 0: google.api.Http
+	(*HttpRule)(nil),          // 1: google.api.HttpRule
+	(*CustomHttpPattern)(nil), // 2: google.api.CustomHttpPattern
+}
+var file_google_api_http_proto_depIdxs = []int32{
+	1, // 0: google.api.Http.rules:type_name -> google.api.HttpRule
+	2, // 1: google.api.HttpRule.custom:type_name -> google.api.CustomHttpPattern
+	1, // 2: google.api.HttpRule.additional_bindings:type_name -> google.api.HttpRule
+	3, // [3:3] is the sub-list for method output_type
+	3, // [3:3] is the sub-list for method input_type
+	3, // [3:3] is the sub-list for extension type_name
+	3, // [3:3] is the sub-list for extension extendee
+	0, // [0:3] is the sub-list for field type_name
+}
+
+func init() { file_google_api_http_proto_init() }
+func file_google_api_http_proto_init() {
+	if File_google_api_http_proto != nil {
+		return
+	}
+	if !protoimpl.UnsafeEnabled {
+		file_google_api_http_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Http); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_google_api_http_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*HttpRule); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_google_api_http_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*CustomHttpPattern); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+	}
+	file_google_api_http_proto_msgTypes[1].OneofWrappers = []interface{}{
+		(*HttpRule_Get)(nil),
+		(*HttpRule_Put)(nil),
+		(*HttpRule_Post)(nil),
+		(*HttpRule_Delete)(nil),
+		(*HttpRule_Patch)(nil),
+		(*HttpRule_Custom)(nil),
+	}
+	type x struct{}
+	out := protoimpl.TypeBuilder{
+		File: protoimpl.DescBuilder{
+			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
+			RawDescriptor: file_google_api_http_proto_rawDesc,
+			NumEnums:      0,
+			NumMessages:   3,
+			NumExtensions: 0,
+			NumServices:   0,
+		},
+		GoTypes:           file_google_api_http_proto_goTypes,
+		DependencyIndexes: file_google_api_http_proto_depIdxs,
+		MessageInfos:      file_google_api_http_proto_msgTypes,
+	}.Build()
+	File_google_api_http_proto = out.File
+	file_google_api_http_proto_rawDesc = nil
+	file_google_api_http_proto_goTypes = nil
+	file_google_api_http_proto_depIdxs = nil
+}

pkg/api/v1/schnutibox.pb.go

@@ -0,0 +1,376 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// versions:
+// 	protoc-gen-go v1.26.0
+// 	protoc        v3.13.0
+// source: schnutibox.proto
+
+package v1
+
+import (
+	duration "github.com/golang/protobuf/ptypes/duration"
+	_ "google.golang.org/genproto/googleapis/api/annotations"
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+	reflect "reflect"
+	sync "sync"
+)
+
+const (
+	// Verify that this generated code is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
+	// Verify that runtime/protoimpl is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
+)
+
+type IdentifyRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Id string `protobuf:"bytes,1,opt,name=id,proto3" json:"id,omitempty"`
+}
+
+func (x *IdentifyRequest) Reset() {
+	*x = IdentifyRequest{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_schnutibox_proto_msgTypes[0]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *IdentifyRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*IdentifyRequest) ProtoMessage() {}
+
+func (x *IdentifyRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_schnutibox_proto_msgTypes[0]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use IdentifyRequest.ProtoReflect.Descriptor instead.
+func (*IdentifyRequest) Descriptor() ([]byte, []int) {
+	return file_schnutibox_proto_rawDescGZIP(), []int{0}
+}
+
+func (x *IdentifyRequest) GetId() string {
+	if x != nil {
+		return x.Id
+	}
+	return ""
+}
+
+type IdentifyResponse struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Name string   `protobuf:"bytes,1,opt,name=name,proto3" json:"name,omitempty"`
+	Uris []string `protobuf:"bytes,2,rep,name=uris,proto3" json:"uris,omitempty"`
+}
+
+func (x *IdentifyResponse) Reset() {
+	*x = IdentifyResponse{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_schnutibox_proto_msgTypes[1]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *IdentifyResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*IdentifyResponse) ProtoMessage() {}
+
+func (x *IdentifyResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_schnutibox_proto_msgTypes[1]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use IdentifyResponse.ProtoReflect.Descriptor instead.
+func (*IdentifyResponse) Descriptor() ([]byte, []int) {
+	return file_schnutibox_proto_rawDescGZIP(), []int{1}
+}
+
+func (x *IdentifyResponse) GetName() string {
+	if x != nil {
+		return x.Name
+	}
+	return ""
+}
+
+func (x *IdentifyResponse) GetUris() []string {
+	if x != nil {
+		return x.Uris
+	}
+	return nil
+}
+
+type Timer struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Duration *duration.Duration `protobuf:"bytes,1,opt,name=duration,proto3" json:"duration,omitempty"`
+	Current  *duration.Duration `protobuf:"bytes,2,opt,name=current,proto3" json:"current,omitempty"`
+}
+
+func (x *Timer) Reset() {
+	*x = Timer{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_schnutibox_proto_msgTypes[2]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *Timer) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Timer) ProtoMessage() {}
+
+func (x *Timer) ProtoReflect() protoreflect.Message {
+	mi := &file_schnutibox_proto_msgTypes[2]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use Timer.ProtoReflect.Descriptor instead.
+func (*Timer) Descriptor() ([]byte, []int) {
+	return file_schnutibox_proto_rawDescGZIP(), []int{2}
+}
+
+func (x *Timer) GetDuration() *duration.Duration {
+	if x != nil {
+		return x.Duration
+	}
+	return nil
+}
+
+func (x *Timer) GetCurrent() *duration.Duration {
+	if x != nil {
+		return x.Current
+	}
+	return nil
+}
+
+type TimerEmpty struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+}
+
+func (x *TimerEmpty) Reset() {
+	*x = TimerEmpty{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_schnutibox_proto_msgTypes[3]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *TimerEmpty) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*TimerEmpty) ProtoMessage() {}
+
+func (x *TimerEmpty) ProtoReflect() protoreflect.Message {
+	mi := &file_schnutibox_proto_msgTypes[3]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use TimerEmpty.ProtoReflect.Descriptor instead.
+func (*TimerEmpty) Descriptor() ([]byte, []int) {
+	return file_schnutibox_proto_rawDescGZIP(), []int{3}
+}
+
+var File_schnutibox_proto protoreflect.FileDescriptor
+
+var file_schnutibox_proto_rawDesc = []byte{
+	0x0a, 0x10, 0x73, 0x63, 0x68, 0x6e, 0x75, 0x74, 0x69, 0x62, 0x6f, 0x78, 0x2e, 0x70, 0x72, 0x6f,
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+	0x2e, 0x76, 0x31, 0x2e, 0x54, 0x69, 0x6d, 0x65, 0x72, 0x22, 0x18, 0x82, 0xd3, 0xe4, 0x93, 0x02,
+	0x12, 0x12, 0x0d, 0x2f, 0x61, 0x70, 0x69, 0x2f, 0x76, 0x31, 0x2f, 0x74, 0x69, 0x6d, 0x65, 0x72,
+	0x3a, 0x01, 0x2a, 0x42, 0x23, 0x5a, 0x21, 0x67, 0x6f, 0x2e, 0x78, 0x73, 0x66, 0x78, 0x2e, 0x64,
+	0x65, 0x76, 0x2f, 0x73, 0x63, 0x68, 0x6e, 0x75, 0x74, 0x69, 0x62, 0x6f, 0x78, 0x2f, 0x70, 0x6b,
+	0x67, 0x2f, 0x61, 0x70, 0x69, 0x2f, 0x76, 0x31, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
+}
+
+var (
+	file_schnutibox_proto_rawDescOnce sync.Once
+	file_schnutibox_proto_rawDescData = file_schnutibox_proto_rawDesc
+)
+
+func file_schnutibox_proto_rawDescGZIP() []byte {
+	file_schnutibox_proto_rawDescOnce.Do(func() {
+		file_schnutibox_proto_rawDescData = protoimpl.X.CompressGZIP(file_schnutibox_proto_rawDescData)
+	})
+	return file_schnutibox_proto_rawDescData
+}
+
+var file_schnutibox_proto_msgTypes = make([]protoimpl.MessageInfo, 4)
+var file_schnutibox_proto_goTypes = []interface{}{
+	(*IdentifyRequest)(nil),   // 0: schnutibox.v1.IdentifyRequest
+	(*IdentifyResponse)(nil),  // 1: schnutibox.v1.IdentifyResponse
+	(*Timer)(nil),             // 2: schnutibox.v1.Timer
+	(*TimerEmpty)(nil),        // 3: schnutibox.v1.TimerEmpty
+	(*duration.Duration)(nil), // 4: google.protobuf.Duration
+}
+var file_schnutibox_proto_depIdxs = []int32{
+	4, // 0: schnutibox.v1.Timer.duration:type_name -> google.protobuf.Duration
+	4, // 1: schnutibox.v1.Timer.current:type_name -> google.protobuf.Duration
+	0, // 2: schnutibox.v1.IdentifierService.Identify:input_type -> schnutibox.v1.IdentifyRequest
+	2, // 3: schnutibox.v1.TimerService.Create:input_type -> schnutibox.v1.Timer
+	3, // 4: schnutibox.v1.TimerService.Get:input_type -> schnutibox.v1.TimerEmpty
+	1, // 5: schnutibox.v1.IdentifierService.Identify:output_type -> schnutibox.v1.IdentifyResponse
+	2, // 6: schnutibox.v1.TimerService.Create:output_type -> schnutibox.v1.Timer
+	2, // 7: schnutibox.v1.TimerService.Get:output_type -> schnutibox.v1.Timer
+	5, // [5:8] is the sub-list for method output_type
+	2, // [2:5] is the sub-list for method input_type
+	2, // [2:2] is the sub-list for extension type_name
+	2, // [2:2] is the sub-list for extension extendee
+	0, // [0:2] is the sub-list for field type_name
+}
+
+func init() { file_schnutibox_proto_init() }
+func file_schnutibox_proto_init() {
+	if File_schnutibox_proto != nil {
+		return
+	}
+	if !protoimpl.UnsafeEnabled {
+		file_schnutibox_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*IdentifyRequest); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_schnutibox_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*IdentifyResponse); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_schnutibox_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Timer); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_schnutibox_proto_msgTypes[3].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*TimerEmpty); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+	}
+	type x struct{}
+	out := protoimpl.TypeBuilder{
+		File: protoimpl.DescBuilder{
+			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
+			RawDescriptor: file_schnutibox_proto_rawDesc,
+			NumEnums:      0,
+			NumMessages:   4,
+			NumExtensions: 0,
+			NumServices:   2,
+		},
+		GoTypes:           file_schnutibox_proto_goTypes,
+		DependencyIndexes: file_schnutibox_proto_depIdxs,
+		MessageInfos:      file_schnutibox_proto_msgTypes,
+	}.Build()
+	File_schnutibox_proto = out.File
+	file_schnutibox_proto_rawDesc = nil
+	file_schnutibox_proto_goTypes = nil
+	file_schnutibox_proto_depIdxs = nil
+}

pkg/api/v1/schnutibox.pb.gw.go

@@ -0,0 +1,367 @@
+// Code generated by protoc-gen-grpc-gateway. DO NOT EDIT.
+// source: schnutibox.proto
+
+/*
+Package v1 is a reverse proxy.
+
+It translates gRPC into RESTful JSON APIs.
+*/
+package v1
+
+import (
+	"context"
+	"io"
+	"net/http"
+
+	"github.com/grpc-ecosystem/grpc-gateway/v2/runtime"
+	"github.com/grpc-ecosystem/grpc-gateway/v2/utilities"
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/grpclog"
+	"google.golang.org/grpc/metadata"
+	"google.golang.org/grpc/status"
+	"google.golang.org/protobuf/proto"
+)
+
+// Suppress "imported and not used" errors
+var _ codes.Code
+var _ io.Reader
+var _ status.Status
+var _ = runtime.String
+var _ = utilities.NewDoubleArray
+var _ = metadata.Join
+
+func request_IdentifierService_Identify_0(ctx context.Context, marshaler runtime.Marshaler, client IdentifierServiceClient, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
+	var protoReq IdentifyRequest
+	var metadata runtime.ServerMetadata
+
+	newReader, berr := utilities.IOReaderFactory(req.Body)
+	if berr != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", berr)
+	}
+	if err := marshaler.NewDecoder(newReader()).Decode(&protoReq); err != nil && err != io.EOF {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+
+	msg, err := client.Identify(ctx, &protoReq, grpc.Header(&metadata.HeaderMD), grpc.Trailer(&metadata.TrailerMD))
+	return msg, metadata, err
+
+}
+
+func local_request_IdentifierService_Identify_0(ctx context.Context, marshaler runtime.Marshaler, server IdentifierServiceServer, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
+	var protoReq IdentifyRequest
+	var metadata runtime.ServerMetadata
+
+	newReader, berr := utilities.IOReaderFactory(req.Body)
+	if berr != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", berr)
+	}
+	if err := marshaler.NewDecoder(newReader()).Decode(&protoReq); err != nil && err != io.EOF {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+
+	msg, err := server.Identify(ctx, &protoReq)
+	return msg, metadata, err
+
+}
+
+func request_TimerService_Create_0(ctx context.Context, marshaler runtime.Marshaler, client TimerServiceClient, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
+	var protoReq Timer
+	var metadata runtime.ServerMetadata
+
+	newReader, berr := utilities.IOReaderFactory(req.Body)
+	if berr != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", berr)
+	}
+	if err := marshaler.NewDecoder(newReader()).Decode(&protoReq); err != nil && err != io.EOF {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+
+	msg, err := client.Create(ctx, &protoReq, grpc.Header(&metadata.HeaderMD), grpc.Trailer(&metadata.TrailerMD))
+	return msg, metadata, err
+
+}
+
+func local_request_TimerService_Create_0(ctx context.Context, marshaler runtime.Marshaler, server TimerServiceServer, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
+	var protoReq Timer
+	var metadata runtime.ServerMetadata
+
+	newReader, berr := utilities.IOReaderFactory(req.Body)
+	if berr != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", berr)
+	}
+	if err := marshaler.NewDecoder(newReader()).Decode(&protoReq); err != nil && err != io.EOF {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+
+	msg, err := server.Create(ctx, &protoReq)
+	return msg, metadata, err
+
+}
+
+func request_TimerService_Get_0(ctx context.Context, marshaler runtime.Marshaler, client TimerServiceClient, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
+	var protoReq TimerEmpty
+	var metadata runtime.ServerMetadata
+
+	msg, err := client.Get(ctx, &protoReq, grpc.Header(&metadata.HeaderMD), grpc.Trailer(&metadata.TrailerMD))
+	return msg, metadata, err
+
+}
+
+func local_request_TimerService_Get_0(ctx context.Context, marshaler runtime.Marshaler, server TimerServiceServer, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
+	var protoReq TimerEmpty
+	var metadata runtime.ServerMetadata
+
+	msg, err := server.Get(ctx, &protoReq)
+	return msg, metadata, err
+
+}
+
+// RegisterIdentifierServiceHandlerServer registers the http handlers for service IdentifierService to "mux".
+// UnaryRPC     :call IdentifierServiceServer directly.
+// StreamingRPC :currently unsupported pending https://github.com/grpc/grpc-go/issues/906.
+// Note that using this registration option will cause many gRPC library features to stop working. Consider using RegisterIdentifierServiceHandlerFromEndpoint instead.
+func RegisterIdentifierServiceHandlerServer(ctx context.Context, mux *runtime.ServeMux, server IdentifierServiceServer) error {
+
+	mux.Handle("POST", pattern_IdentifierService_Identify_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
+		ctx, cancel := context.WithCancel(req.Context())
+		defer cancel()
+		var stream runtime.ServerTransportStream
+		ctx = grpc.NewContextWithServerTransportStream(ctx, &stream)
+		inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
+		rctx, err := runtime.AnnotateIncomingContext(ctx, mux, req, "/schnutibox.v1.IdentifierService/Identify")
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		resp, md, err := local_request_IdentifierService_Identify_0(rctx, inboundMarshaler, server, req, pathParams)
+		md.HeaderMD, md.TrailerMD = metadata.Join(md.HeaderMD, stream.Header()), metadata.Join(md.TrailerMD, stream.Trailer())
+		ctx = runtime.NewServerMetadataContext(ctx, md)
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+
+		forward_IdentifierService_Identify_0(ctx, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
+
+	})
+
+	return nil
+}
+
+// RegisterTimerServiceHandlerServer registers the http handlers for service TimerService to "mux".
+// UnaryRPC     :call TimerServiceServer directly.
+// StreamingRPC :currently unsupported pending https://github.com/grpc/grpc-go/issues/906.
+// Note that using this registration option will cause many gRPC library features to stop working. Consider using RegisterTimerServiceHandlerFromEndpoint instead.
+func RegisterTimerServiceHandlerServer(ctx context.Context, mux *runtime.ServeMux, server TimerServiceServer) error {
+
+	mux.Handle("POST", pattern_TimerService_Create_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
+		ctx, cancel := context.WithCancel(req.Context())
+		defer cancel()
+		var stream runtime.ServerTransportStream
+		ctx = grpc.NewContextWithServerTransportStream(ctx, &stream)
+		inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
+		rctx, err := runtime.AnnotateIncomingContext(ctx, mux, req, "/schnutibox.v1.TimerService/Create")
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		resp, md, err := local_request_TimerService_Create_0(rctx, inboundMarshaler, server, req, pathParams)
+		md.HeaderMD, md.TrailerMD = metadata.Join(md.HeaderMD, stream.Header()), metadata.Join(md.TrailerMD, stream.Trailer())
+		ctx = runtime.NewServerMetadataContext(ctx, md)
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+
+		forward_TimerService_Create_0(ctx, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
+
+	})
+
+	mux.Handle("GET", pattern_TimerService_Get_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
+		ctx, cancel := context.WithCancel(req.Context())
+		defer cancel()
+		var stream runtime.ServerTransportStream
+		ctx = grpc.NewContextWithServerTransportStream(ctx, &stream)
+		inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
+		rctx, err := runtime.AnnotateIncomingContext(ctx, mux, req, "/schnutibox.v1.TimerService/Get")
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		resp, md, err := local_request_TimerService_Get_0(rctx, inboundMarshaler, server, req, pathParams)
+		md.HeaderMD, md.TrailerMD = metadata.Join(md.HeaderMD, stream.Header()), metadata.Join(md.TrailerMD, stream.Trailer())
+		ctx = runtime.NewServerMetadataContext(ctx, md)
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+
+		forward_TimerService_Get_0(ctx, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
+
+	})
+
+	return nil
+}
+
+// RegisterIdentifierServiceHandlerFromEndpoint is same as RegisterIdentifierServiceHandler but
+// automatically dials to "endpoint" and closes the connection when "ctx" gets done.
+func RegisterIdentifierServiceHandlerFromEndpoint(ctx context.Context, mux *runtime.ServeMux, endpoint string, opts []grpc.DialOption) (err error) {
+	conn, err := grpc.Dial(endpoint, opts...)
+	if err != nil {
+		return err
+	}
+	defer func() {
+		if err != nil {
+			if cerr := conn.Close(); cerr != nil {
+				grpclog.Infof("Failed to close conn to %s: %v", endpoint, cerr)
+			}
+			return
+		}
+		go func() {
+			<-ctx.Done()
+			if cerr := conn.Close(); cerr != nil {
+				grpclog.Infof("Failed to close conn to %s: %v", endpoint, cerr)
+			}
+		}()
+	}()
+
+	return RegisterIdentifierServiceHandler(ctx, mux, conn)
+}
+
+// RegisterIdentifierServiceHandler registers the http handlers for service IdentifierService to "mux".
+// The handlers forward requests to the grpc endpoint over "conn".
+func RegisterIdentifierServiceHandler(ctx context.Context, mux *runtime.ServeMux, conn *grpc.ClientConn) error {
+	return RegisterIdentifierServiceHandlerClient(ctx, mux, NewIdentifierServiceClient(conn))
+}
+
+// RegisterIdentifierServiceHandlerClient registers the http handlers for service IdentifierService
+// to "mux". The handlers forward requests to the grpc endpoint over the given implementation of "IdentifierServiceClient".
+// Note: the gRPC framework executes interceptors within the gRPC handler. If the passed in "IdentifierServiceClient"
+// doesn't go through the normal gRPC flow (creating a gRPC client etc.) then it will be up to the passed in
+// "IdentifierServiceClient" to call the correct interceptors.
+func RegisterIdentifierServiceHandlerClient(ctx context.Context, mux *runtime.ServeMux, client IdentifierServiceClient) error {
+
+	mux.Handle("POST", pattern_IdentifierService_Identify_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
+		ctx, cancel := context.WithCancel(req.Context())
+		defer cancel()
+		inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
+		rctx, err := runtime.AnnotateContext(ctx, mux, req, "/schnutibox.v1.IdentifierService/Identify")
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		resp, md, err := request_IdentifierService_Identify_0(rctx, inboundMarshaler, client, req, pathParams)
+		ctx = runtime.NewServerMetadataContext(ctx, md)
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+
+		forward_IdentifierService_Identify_0(ctx, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
+
+	})
+
+	return nil
+}
+
+var (
+	pattern_IdentifierService_Identify_0 = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0, 2, 1, 2, 2}, []string{"api", "v1", "identify"}, ""))
+)
+
+var (
+	forward_IdentifierService_Identify_0 = runtime.ForwardResponseMessage
+)
+
+// RegisterTimerServiceHandlerFromEndpoint is same as RegisterTimerServiceHandler but
+// automatically dials to "endpoint" and closes the connection when "ctx" gets done.
+func RegisterTimerServiceHandlerFromEndpoint(ctx context.Context, mux *runtime.ServeMux, endpoint string, opts []grpc.DialOption) (err error) {
+	conn, err := grpc.Dial(endpoint, opts...)
+	if err != nil {
+		return err
+	}
+	defer func() {
+		if err != nil {
+			if cerr := conn.Close(); cerr != nil {
+				grpclog.Infof("Failed to close conn to %s: %v", endpoint, cerr)
+			}
+			return
+		}
+		go func() {
+			<-ctx.Done()
+			if cerr := conn.Close(); cerr != nil {
+				grpclog.Infof("Failed to close conn to %s: %v", endpoint, cerr)
+			}
+		}()
+	}()
+
+	return RegisterTimerServiceHandler(ctx, mux, conn)
+}
+
+// RegisterTimerServiceHandler registers the http handlers for service TimerService to "mux".
+// The handlers forward requests to the grpc endpoint over "conn".
+func RegisterTimerServiceHandler(ctx context.Context, mux *runtime.ServeMux, conn *grpc.ClientConn) error {
+	return RegisterTimerServiceHandlerClient(ctx, mux, NewTimerServiceClient(conn))
+}
+
+// RegisterTimerServiceHandlerClient registers the http handlers for service TimerService
+// to "mux". The handlers forward requests to the grpc endpoint over the given implementation of "TimerServiceClient".
+// Note: the gRPC framework executes interceptors within the gRPC handler. If the passed in "TimerServiceClient"
+// doesn't go through the normal gRPC flow (creating a gRPC client etc.) then it will be up to the passed in
+// "TimerServiceClient" to call the correct interceptors.
+func RegisterTimerServiceHandlerClient(ctx context.Context, mux *runtime.ServeMux, client TimerServiceClient) error {
+
+	mux.Handle("POST", pattern_TimerService_Create_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
+		ctx, cancel := context.WithCancel(req.Context())
+		defer cancel()
+		inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
+		rctx, err := runtime.AnnotateContext(ctx, mux, req, "/schnutibox.v1.TimerService/Create")
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		resp, md, err := request_TimerService_Create_0(rctx, inboundMarshaler, client, req, pathParams)
+		ctx = runtime.NewServerMetadataContext(ctx, md)
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+
+		forward_TimerService_Create_0(ctx, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
+
+	})
+
+	mux.Handle("GET", pattern_TimerService_Get_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
+		ctx, cancel := context.WithCancel(req.Context())
+		defer cancel()
+		inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
+		rctx, err := runtime.AnnotateContext(ctx, mux, req, "/schnutibox.v1.TimerService/Get")
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		resp, md, err := request_TimerService_Get_0(rctx, inboundMarshaler, client, req, pathParams)
+		ctx = runtime.NewServerMetadataContext(ctx, md)
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+
+		forward_TimerService_Get_0(ctx, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
+
+	})
+
+	return nil
+}
+
+var (
+	pattern_TimerService_Create_0 = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0, 2, 1, 2, 2}, []string{"api", "v1", "timer"}, ""))
+
+	pattern_TimerService_Get_0 = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0, 2, 1, 2, 2}, []string{"api", "v1", "timer"}, ""))
+)
+
+var (
+	forward_TimerService_Create_0 = runtime.ForwardResponseMessage
+
+	forward_TimerService_Get_0 = runtime.ForwardResponseMessage
+)

pkg/api/v1/schnutibox_grpc.pb.go

@@ -0,0 +1,219 @@
+// Code generated by protoc-gen-go-grpc. DO NOT EDIT.
+
+package v1
+
+import (
+	context "context"
+	grpc "google.golang.org/grpc"
+	codes "google.golang.org/grpc/codes"
+	status "google.golang.org/grpc/status"
+)
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the grpc package it is being compiled against.
+// Requires gRPC-Go v1.32.0 or later.
+const _ = grpc.SupportPackageIsVersion7
+
+// IdentifierServiceClient is the client API for IdentifierService service.
+//
+// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://pkg.go.dev/google.golang.org/grpc/?tab=doc#ClientConn.NewStream.
+type IdentifierServiceClient interface {
+	Identify(ctx context.Context, in *IdentifyRequest, opts ...grpc.CallOption) (*IdentifyResponse, error)
+}
+
+type identifierServiceClient struct {
+	cc grpc.ClientConnInterface
+}
+
+func NewIdentifierServiceClient(cc grpc.ClientConnInterface) IdentifierServiceClient {
+	return &identifierServiceClient{cc}
+}
+
+func (c *identifierServiceClient) Identify(ctx context.Context, in *IdentifyRequest, opts ...grpc.CallOption) (*IdentifyResponse, error) {
+	out := new(IdentifyResponse)
+	err := c.cc.Invoke(ctx, "/schnutibox.v1.IdentifierService/Identify", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+// IdentifierServiceServer is the server API for IdentifierService service.
+// All implementations should embed UnimplementedIdentifierServiceServer
+// for forward compatibility
+type IdentifierServiceServer interface {
+	Identify(context.Context, *IdentifyRequest) (*IdentifyResponse, error)
+}
+
+// UnimplementedIdentifierServiceServer should be embedded to have forward compatible implementations.
+type UnimplementedIdentifierServiceServer struct {
+}
+
+func (UnimplementedIdentifierServiceServer) Identify(context.Context, *IdentifyRequest) (*IdentifyResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method Identify not implemented")
+}
+
+// UnsafeIdentifierServiceServer may be embedded to opt out of forward compatibility for this service.
+// Use of this interface is not recommended, as added methods to IdentifierServiceServer will
+// result in compilation errors.
+type UnsafeIdentifierServiceServer interface {
+	mustEmbedUnimplementedIdentifierServiceServer()
+}
+
+func RegisterIdentifierServiceServer(s grpc.ServiceRegistrar, srv IdentifierServiceServer) {
+	s.RegisterService(&IdentifierService_ServiceDesc, srv)
+}
+
+func _IdentifierService_Identify_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(IdentifyRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(IdentifierServiceServer).Identify(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/schnutibox.v1.IdentifierService/Identify",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(IdentifierServiceServer).Identify(ctx, req.(*IdentifyRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+// IdentifierService_ServiceDesc is the grpc.ServiceDesc for IdentifierService service.
+// It's only intended for direct use with grpc.RegisterService,
+// and not to be introspected or modified (even as a copy)
+var IdentifierService_ServiceDesc = grpc.ServiceDesc{
+	ServiceName: "schnutibox.v1.IdentifierService",
+	HandlerType: (*IdentifierServiceServer)(nil),
+	Methods: []grpc.MethodDesc{
+		{
+			MethodName: "Identify",
+			Handler:    _IdentifierService_Identify_Handler,
+		},
+	},
+	Streams:  []grpc.StreamDesc{},
+	Metadata: "schnutibox.proto",
+}
+
+// TimerServiceClient is the client API for TimerService service.
+//
+// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://pkg.go.dev/google.golang.org/grpc/?tab=doc#ClientConn.NewStream.
+type TimerServiceClient interface {
+	Create(ctx context.Context, in *Timer, opts ...grpc.CallOption) (*Timer, error)
+	Get(ctx context.Context, in *TimerEmpty, opts ...grpc.CallOption) (*Timer, error)
+}
+
+type timerServiceClient struct {
+	cc grpc.ClientConnInterface
+}
+
+func NewTimerServiceClient(cc grpc.ClientConnInterface) TimerServiceClient {
+	return &timerServiceClient{cc}
+}
+
+func (c *timerServiceClient) Create(ctx context.Context, in *Timer, opts ...grpc.CallOption) (*Timer, error) {
+	out := new(Timer)
+	err := c.cc.Invoke(ctx, "/schnutibox.v1.TimerService/Create", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *timerServiceClient) Get(ctx context.Context, in *TimerEmpty, opts ...grpc.CallOption) (*Timer, error) {
+	out := new(Timer)
+	err := c.cc.Invoke(ctx, "/schnutibox.v1.TimerService/Get", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+// TimerServiceServer is the server API for TimerService service.
+// All implementations should embed UnimplementedTimerServiceServer
+// for forward compatibility
+type TimerServiceServer interface {
+	Create(context.Context, *Timer) (*Timer, error)
+	Get(context.Context, *TimerEmpty) (*Timer, error)
+}
+
+// UnimplementedTimerServiceServer should be embedded to have forward compatible implementations.
+type UnimplementedTimerServiceServer struct {
+}
+
+func (UnimplementedTimerServiceServer) Create(context.Context, *Timer) (*Timer, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method Create not implemented")
+}
+func (UnimplementedTimerServiceServer) Get(context.Context, *TimerEmpty) (*Timer, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method Get not implemented")
+}
+
+// UnsafeTimerServiceServer may be embedded to opt out of forward compatibility for this service.
+// Use of this interface is not recommended, as added methods to TimerServiceServer will
+// result in compilation errors.
+type UnsafeTimerServiceServer interface {
+	mustEmbedUnimplementedTimerServiceServer()
+}
+
+func RegisterTimerServiceServer(s grpc.ServiceRegistrar, srv TimerServiceServer) {
+	s.RegisterService(&TimerService_ServiceDesc, srv)
+}
+
+func _TimerService_Create_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(Timer)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(TimerServiceServer).Create(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/schnutibox.v1.TimerService/Create",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(TimerServiceServer).Create(ctx, req.(*Timer))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _TimerService_Get_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(TimerEmpty)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(TimerServiceServer).Get(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/schnutibox.v1.TimerService/Get",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(TimerServiceServer).Get(ctx, req.(*TimerEmpty))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+// TimerService_ServiceDesc is the grpc.ServiceDesc for TimerService service.
+// It's only intended for direct use with grpc.RegisterService,
+// and not to be introspected or modified (even as a copy)
+var TimerService_ServiceDesc = grpc.ServiceDesc{
+	ServiceName: "schnutibox.v1.TimerService",
+	HandlerType: (*TimerServiceServer)(nil),
+	Methods: []grpc.MethodDesc{
+		{
+			MethodName: "Create",
+			Handler:    _TimerService_Create_Handler,
+		},
+		{
+			MethodName: "Get",
+			Handler:    _TimerService_Get_Handler,
+		},
+	},
+	Streams:  []grpc.StreamDesc{},
+	Metadata: "schnutibox.proto",
+}

pkg/currentsong/currentsong.go

@@ -0,0 +1,56 @@
+package currentsong
+
+import (
+	"fmt"
+	"net/http"
+
+	"go.xsfx.dev/logginghandler"
+)
+
+var recvs = make(map[chan string]struct{}) // nolint:gochecknoglobals
+
+// Write writes current track to the receivers.
+func Write(track string) {
+	for k := range recvs {
+		k <- track
+	}
+}
+
+func Handler(w http.ResponseWriter, r *http.Request) {
+	logger := logginghandler.Logger(r)
+	logger.Debug().Msg("got a new receiver")
+
+	flusher, ok := w.(http.Flusher)
+	if !ok {
+		logger.Error().Msg("streaming unsupported")
+		http.Error(w, "streaming unsupported", http.StatusInternalServerError)
+
+		return
+	}
+
+	w.Header().Set("Content-Type", "text/event-stream")
+	w.Header().Set("Cache-Control", "no-cache")
+	w.Header().Set("Connection", "keep-alive")
+	// TODO: has to be something else!
+	w.Header().Set("Access-Control-Allow-Origin", "*")
+
+	cChan := make(chan string)
+
+	recvs[cChan] = struct{}{}
+
+	for {
+		select {
+		case e := <-cChan:
+			// Send event to client.
+			fmt.Fprintf(w, "data: %s\n\n", e)
+
+			// Send it right now and not buffering it.
+			flusher.Flush()
+		case <-r.Context().Done():
+			close(cChan)
+			delete(recvs, cChan)
+
+			return
+		}
+	}
+}

pkg/mpc/mpc.go

@@ -0,0 +1,138 @@
+package mpc
+
+import (
+	"errors"
+	"fmt"
+	"time"
+
+	"github.com/fhs/gompd/v2/mpd"
+	"github.com/rs/zerolog"
+	"github.com/rs/zerolog/log"
+	"go.xsfx.dev/schnutibox/internal/config"
+	"go.xsfx.dev/schnutibox/internal/metrics"
+)
+
+const (
+	timeout     = 5 * time.Second
+	timeoutWait = time.Second / 2
+)
+
+var errTimeout = errors.New("timeout")
+
+func Conn() (*mpd.Client, error) {
+	t := time.NewTimer(timeout)
+
+	for {
+		select {
+		case <-t.C:
+			return nil, errTimeout
+		default:
+			c, err := mpd.Dial("tcp", fmt.Sprintf("%s:%d", config.Cfg.MPD.Hostname, config.Cfg.MPD.Port))
+			if err != nil {
+				log.Error().Err(err).Msg("could not connect")
+
+				time.Sleep(timeoutWait)
+
+				continue
+			}
+
+			if !t.Stop() {
+				go func() {
+					<-t.C
+				}()
+			}
+
+			return c, nil
+		}
+	}
+}
+
+// PlaylistURIS extracts uris from MPD playlist.
+func PlaylistURIS(m *mpd.Client) ([]string, error) {
+	attrs, err := m.PlaylistInfo(-1, -1)
+	if err != nil {
+		return nil, fmt.Errorf("could not get playlist: %w", err)
+	}
+
+	// Stores the tracklist it got from the MPD server.
+	uris := []string{}
+
+	// Builds uri list.
+	for _, a := range attrs {
+		uris = append(uris, a["file"])
+	}
+
+	return uris, nil
+}
+
+func Stop(logger zerolog.Logger) error {
+	logger.Info().Msg("trying to stop playback")
+
+	m, err := Conn()
+	if err != nil {
+		return fmt.Errorf("could not connect: %w", err)
+	}
+
+	// nolint:wrapcheck
+	return m.Stop()
+}
+
+func Clear(logger zerolog.Logger) error {
+	logger.Info().Msg("trying to clear playlist")
+
+	m, err := Conn()
+	if err != nil {
+		return fmt.Errorf("could not connect: %w", err)
+	}
+
+	// nolint:wrapcheck
+	return m.Clear()
+}
+
+func Play(logger zerolog.Logger, rfid string, name string, uris []string) error {
+	logger.Info().Msg("trying to add tracks")
+
+	m, err := Conn()
+	if err != nil {
+		return fmt.Errorf("could not connect: %w", err)
+	}
+
+	// Stop playing track.
+	if err := Stop(logger); err != nil {
+		metrics.BoxErrors.Inc()
+
+		return err
+	}
+
+	// Clear playlist.
+	if err := Clear(logger); err != nil {
+		metrics.BoxErrors.Inc()
+
+		return err
+	}
+
+	// Adding every single uri to playlist
+	for _, i := range uris {
+		logger.Debug().Str("uri", i).Msg("add track")
+
+		if err := m.Add(i); err != nil {
+			metrics.BoxErrors.Inc()
+
+			return fmt.Errorf("could not add track: %w", err)
+		}
+	}
+
+	// Getting playlist uris from MPD server.
+	// This is needed to identify the right metric to use.
+	mpdURIS, err := PlaylistURIS(m)
+	if err != nil {
+		metrics.BoxErrors.Inc()
+
+		return err
+	}
+
+	metrics.NewPlay(rfid, name, mpdURIS)
+
+	// nolint:wrapcheck
+	return m.Play(-1)
+}

pkg/prepare/prepare.go

@@ -13,7 +13,7 @@ import (
 	"github.com/rs/zerolog"
 	"github.com/rs/zerolog/log"
 	"github.com/spf13/cobra"
-	"go.xsfx.dev/schnutibox/assets"
+	assets "go.xsfx.dev/schnutibox/assets/prepare"
 )
 
 const (
@@ -27,8 +27,13 @@ const (
 	schnutboxConfigDir = "/etc/schnutibox"
 	upmpdcliUser       = "upmpdcli"
 	upmpdcliGroup      = "nogroup"
+	snapserverUser     = "snapserver"
+	snapserverGroup    = "snapserver"
+	snapclientUser     = "snapclient"
+	snapclientGroup    = "snapclient"
 )
 
+// Cfg represents the structured data for the schnutibox config file.
 var Cfg = struct {
 	RFIDReader          string
 	ReadOnly            bool
@@ -41,11 +46,11 @@ var Cfg = struct {
 	System              string
 }{}
 
-// BoxService creates a systemd service for schnutibox.
-func BoxService(filename string, enable bool) error {
+// boxService creates a systemd service for schnutibox.
+func boxService(filename string, enable bool) error {
 	logger := log.With().Str("stage", "BoxService").Logger()
 
-	if err := CreateUser(); err != nil {
+	if err := createUser(); err != nil {
 		return fmt.Errorf("could not create user: %w", err)
 	}
 
@@ -54,8 +59,13 @@ func BoxService(filename string, enable bool) error {
 		return fmt.Errorf("could not create config dir: %w", err)
 	}
 
-	//nolint:gosec
-	if err := ioutil.WriteFile(filename, assets.SchnutiboxService, 0o644); err != nil {
+	schnutiboxService, err := assets.Files.ReadFile("files/schnutibox.service")
+	if err != nil {
+		return fmt.Errorf("could not get service file: %w", err)
+	}
+
+	//nolint:gosec,gomnd
+	if err := ioutil.WriteFile(filename, schnutiboxService, 0o644); err != nil {
 		return fmt.Errorf("could not write service file: %w", err)
 	}
 
@@ -78,7 +88,7 @@ func BoxService(filename string, enable bool) error {
 	return nil
 }
 
-func NTP() error {
+func ntp() error {
 	logger := log.With().Str("stage", "NTP").Logger()
 
 	cmd := exec.Command("apt-get", "install", "-y", "ntp", "ntpdate")
@@ -91,8 +101,13 @@ func NTP() error {
 		return fmt.Errorf("could not install ntp: %w", err)
 	}
 
-	// nolint:gosec
-	if err := ioutil.WriteFile("/etc/systemd/system/ntp.service", assets.NtpService, 0o644); err != nil {
+	ntpService, err := assets.Files.ReadFile("files/ntp.service")
+	if err != nil {
+		return fmt.Errorf("could not get ntp service file: %w", err)
+	}
+
+	// nolint:gosec,gomnd
+	if err := ioutil.WriteFile("/etc/systemd/system/ntp.service", ntpService, 0o644); err != nil {
 		return fmt.Errorf("could not copy ntp service file: %w", err)
 	}
 
@@ -109,10 +124,11 @@ func NTP() error {
 	return nil
 }
 
-// Fstab creates a fstab for a read-only system.
-// nolint:funlen
-func Fstab(system string) error {
+// fstab creates a fstab for a read-only system.
+// nolint:funlen,cyclop
+func fstab(system string) error {
 	logger := log.With().Str("stage", "Fstab").Logger()
+	logger.Debug().Str("system", system).Msg("ignoring for now")
 
 	// Getting timesync user and group informations.
 	timesyncUser, err := user.Lookup(timesyncUser)
@@ -153,12 +169,40 @@ func Fstab(system string) error {
 
 	logger.Debug().Str("uid", upmpdcliUser.Uid).Str("gid", upmpdcliGroup.Gid).Msg("upmpdcli")
 
+	// Getting snapserver user and group informations.
+	snapserverUser, err := user.Lookup(snapserverUser)
+	if err != nil {
+		return fmt.Errorf("could not lookup snapserver user: %w", err)
+	}
+
+	snapserverGroup, err := user.LookupGroup(snapserverGroup)
+	if err != nil {
+		return fmt.Errorf("could not lookup snapserver group: %w", err)
+	}
+
+	logger.Debug().Str("uid", snapserverUser.Uid).Str("gid", snapserverGroup.Gid).Msg("snapserver")
+
+	snapclientUser, err := user.Lookup(snapclientUser)
+	if err != nil {
+		return fmt.Errorf("could not lookup snapclient user: %w", err)
+	}
+
+	snapclientGroup, err := user.LookupGroup(snapclientGroup)
+	if err != nil {
+		return fmt.Errorf("could not lookup snapclient group: %w", err)
+	}
+
+	logger.Debug().Str("uid", snapclientUser.Uid).Str("gid", snapclientGroup.Gid).Msg("snapclient")
+
 	// Chose the right template.
 	// In future it should be a switch statement.
-	tmpl := assets.FstabRaspbianTemplate
+	tmpl, err := assets.Templates.ReadFile("templates/fstab.raspbian.tmpl")
+	if err != nil {
+		return fmt.Errorf("could not get fstab template: %w", err)
+	}
 
 	// Parse template.
-	t := template.Must(template.New("fstab").Parse(tmpl))
+	t := template.Must(template.New("fstab").Parse(string(tmpl)))
 
 	// Open fstab.
 	f, err := os.Create("/etc/fstab")
@@ -169,12 +213,16 @@ func Fstab(system string) error {
 
 	// Create and write.
 	if err := t.Execute(f, struct {
-		TimesyncUID string
-		TimesyncGID string
-		MopidyUID   string
-		MopidyGID   string
-		UpmpdcliUID string
-		UpmpdcliGID string
+		TimesyncUID   string
+		TimesyncGID   string
+		MopidyUID     string
+		MopidyGID     string
+		UpmpdcliUID   string
+		UpmpdcliGID   string
+		SnapserverUID string
+		SnapserverGID string
+		SnapclientUID string
+		SnapclientGID string
 	}{
 		timesyncUser.Uid,
 		timesyncGroup.Gid,
@@ -182,6 +230,10 @@ func Fstab(system string) error {
 		mopidyGroup.Gid,
 		upmpdcliUser.Uid,
 		upmpdcliGroup.Gid,
+		snapserverUser.Uid,
+		snapserverGroup.Gid,
+		snapclientUser.Uid,
+		snapclientGroup.Gid,
 	}); err != nil {
 		return fmt.Errorf("could not write templated fstab: %w", err)
 	}
@@ -189,8 +241,8 @@ func Fstab(system string) error {
 	return nil
 }
 
-// RemovePkgs removes not needed software in read-only mode.
-func RemovePkgs(system string) error {
+// removePkgs removes not needed software in read-only mode.
+func removePkgs(system string) error {
 	logger := log.With().Str("stage", "RemovePkgs").Logger()
 	if system != "raspbian" {
 		logger.Info().Msg("nothing to do")
@@ -227,12 +279,17 @@ func RemovePkgs(system string) error {
 	return nil
 }
 
-func CreateUDEVrules() error {
+func udevRules() error {
 	logger := log.With().Str("stage", "CreateUDEVrules").Logger()
 	logger.Info().Msg("writing udev rule file")
 
 	// Parse template.
-	t := template.Must(template.New("udev").Parse(assets.UDEVRules))
+	tmpl, err := assets.Templates.ReadFile("templates/50-neuftech.rules.tmpl")
+	if err != nil {
+		return fmt.Errorf("could not get udev rules file: %w", err)
+	}
+
+	t := template.Must(template.New("udev").Parse(string(tmpl)))
 
 	// Open file.
 	f, err := os.Create("/etc/udev/rules.d/50-neuftech.rules")
@@ -253,8 +310,8 @@ func CreateUDEVrules() error {
 	return nil
 }
 
-// CreateUser creates schnutibox system user and group.
-func CreateUser() error {
+// createUser creates schnutibox system user and group.
+func createUser() error {
 	logger := log.With().Str("stage", "CreateUser").Logger()
 
 	cmd := exec.Command("adduser", "--system", "--group", "--no-create-home", schnutiboxUser)
@@ -267,9 +324,10 @@ func CreateUser() error {
 	return nil
 }
 
-// CreateSymlinks creates all needed symlinks.
-func CreateSymlinks(system string) error {
+// symlinks creates all needed symlinks.
+func symlinks(system string) error {
 	logger := log.With().Str("stage", "Symlinks").Logger()
+	logger.Debug().Str("system", system).Msg("ignoring for now")
 
 	links := []struct {
 		symlink string
@@ -339,7 +397,7 @@ func cmdlineTxt() error {
 	newLine := strings.TrimSuffix(string(oldLine), "\n") + " " + "fastboot" + " " + "noswap"
 
 	// Write.
-	// nolint:gosec
+	// nolint:gosec,gomnd
 	if err := ioutil.WriteFile("/boot/cmdline.txt", []byte(newLine), 0o644); err != nil {
 		return fmt.Errorf("could not write cmdline.txt: %w", err)
 	}
@@ -347,17 +405,17 @@ func cmdlineTxt() error {
 	return nil
 }
 
-// makeReadOnly executes stuff if a read-only system is wanted.
-func makeReadOnly(system string) error {
-	if err := RemovePkgs(system); err != nil {
+// readOnly executes stuff if a read-only system is wanted.
+func readOnly(system string) error {
+	if err := removePkgs(system); err != nil {
 		return fmt.Errorf("could not remove pkgs: %w", err)
 	}
 
-	if err := CreateSymlinks(system); err != nil {
+	if err := symlinks(system); err != nil {
 		return fmt.Errorf("could not create symlinks: %w", err)
 	}
 
-	if err := Fstab(system); err != nil {
+	if err := fstab(system); err != nil {
 		return fmt.Errorf("could not create fstab: %w", err)
 	}
 
@@ -368,9 +426,9 @@ func makeReadOnly(system string) error {
 	return nil
 }
 
-// Mopidy setups mopidy.
+// mopidy setups mopidy.
 //nolint:funlen,cyclop
-func Mopidy() error {
+func mopidy() error {
 	logger := log.With().Str("stage", "Mopidy").Logger()
 
 	// GPG Key.
@@ -412,6 +470,7 @@ func Mopidy() error {
 	// Install.
 	cmd = exec.Command(
 		"apt-get", "install", "-y",
+		"libgstreamer-plugins-bad1.0",
 		"mopidy",
 		"mopidy-alsamixer",
 		"mopidy-mpd",
@@ -461,7 +520,12 @@ func Mopidy() error {
 		Cfg.Spotify = true
 	}
 
-	t := template.Must(template.New("mopidyConf").Parse(assets.MopidyConf))
+	tmpl, err := assets.Templates.ReadFile("templates/mopidy.conf.tmpl")
+	if err != nil {
+		return fmt.Errorf("could not get mopidy.conf: %w", err)
+	}
+
+	t := template.Must(template.New("mopidyConf").Parse(string(tmpl)))
 
 	f, err := os.Create("/etc/mopidy/mopidy.conf")
 	if err != nil {
@@ -478,7 +542,7 @@ func Mopidy() error {
 
 // Upmpdcli setups upmpdcli.
 //nolint:funlen
-func Upmpdcli() error {
+func upmpdcli() error {
 	logger := log.With().Str("stage", "Upmpdcli").Logger()
 
 	// GPG Key.
@@ -548,20 +612,95 @@ func Upmpdcli() error {
 	}
 
 	// Create config.
-	// nolint:gosec
-	if err := ioutil.WriteFile("/etc/upmpdcli.conf", assets.UpmpdcliConf, 0o644); err != nil {
+	upmpdcliConf, err := assets.Files.ReadFile("files/upmpdcli.conf")
+	if err != nil {
+		return fmt.Errorf("could not get upmpdcli.conf: %w", err)
+	}
+
+	// nolint:gosec,gomnd
+	if err := ioutil.WriteFile("/etc/upmpdcli.conf", upmpdcliConf, 0o644); err != nil {
 		return fmt.Errorf("could not copy upmpdcli config: %w", err)
 	}
 
 	return nil
 }
 
-func SchnutiboxConfig() error {
-	logger := log.With().Str("stage", "Upmpdcli").Logger()
+// nolint:funlen
+func snapcast() error {
+	logger := log.With().Str("stage", "snapcast").Logger()
+
+	// Download deb.
+	cmd := exec.Command(
+		"wget",
+		"https://github.com/badaix/snapcast/releases/download/v0.24.0/snapclient_0.24.0-1_without-pulse_armhf.deb",
+		"-O", "/tmp/snapclient.deb",
+	)
+	cmd.Stdout = os.Stdout
+	cmd.Stderr = os.Stderr
+
+	logger.Debug().Str("cmd", cmd.String()).Msg("running")
+
+	if err := cmd.Run(); err != nil {
+		return fmt.Errorf("could not download snapclient deb: %w", err)
+	}
+
+	// Install deb
+	cmd = exec.Command(
+		"/bin/sh", "-c",
+		"dpkg -i /tmp/snapclient.deb; apt --fix-broken install -y; rm /tmp/snapclient.deb",
+	)
+	cmd.Stdout = os.Stdout
+	cmd.Stderr = os.Stderr
+
+	logger.Debug().Str("cmd", cmd.String()).Msg("running")
+
+	if err := cmd.Run(); err != nil {
+		return fmt.Errorf("could not install snapclient deb: %w", err)
+	}
+
+	// Download deb.
+	cmd = exec.Command(
+		"wget",
+		"https://github.com/badaix/snapcast/releases/download/v0.24.0/snapserver_0.24.0-1_armhf.deb",
+		"-O", "/tmp/snapserver.deb",
+	)
+	cmd.Stdout = os.Stdout
+	cmd.Stderr = os.Stderr
+
+	logger.Debug().Str("cmd", cmd.String()).Msg("running")
+
+	if err := cmd.Run(); err != nil {
+		return fmt.Errorf("could not download snapserver deb: %w", err)
+	}
+
+	// Install deb
+	cmd = exec.Command(
+		"/bin/sh", "-c",
+		"dpkg -i /tmp/snapserver.deb; apt --fix-broken install -y; rm /tmp/snapserver.deb",
+	)
+	cmd.Stdout = os.Stdout
+	cmd.Stderr = os.Stderr
+
+	logger.Debug().Str("cmd", cmd.String()).Msg("running")
+
+	if err := cmd.Run(); err != nil {
+		return fmt.Errorf("could not install snapserver deb: %w", err)
+	}
+
+	return nil
+}
+
+func schnutiboxConfig() error {
+	logger := log.With().Str("stage", "schnutiboxConfig").Logger()
 	logger.Info().Msg("writing schnutibox config")
 
 	// Parse template.
-	t := template.Must(template.New("config").Parse(assets.SchnutiboxConfig))
+	tmpl, err := assets.Templates.ReadFile("templates/schnutibox.yml.tmpl")
+	if err != nil {
+		return fmt.Errorf("could not get template: %w", err)
+	}
+
+	t := template.Must(template.New("config").Parse(string(tmpl)))
 
 	// Open file.
 	f, err := os.Create("/etc/schnutibox/schnutibox.yml")
@@ -582,38 +721,43 @@ func Run(cmd *cobra.Command, args []string) {
 	log.Logger = log.Output(zerolog.ConsoleWriter{Out: os.Stderr})
 
 	// Install schnutibox service.
-	if err := BoxService(serviceLocation+"/"+serviceFileName, true); err != nil {
+	if err := boxService(serviceLocation+"/"+serviceFileName, true); err != nil {
 		log.Fatal().Err(err).Msg("could not create schnutibox service")
 	}
 
 	// Create schnutibox config.
-	if err := SchnutiboxConfig(); err != nil {
+	if err := schnutiboxConfig(); err != nil {
 		log.Fatal().Err(err).Msg("could not create schnutibox config.")
 	}
 
 	// Install udev file.
-	if err := CreateUDEVrules(); err != nil {
+	if err := udevRules(); err != nil {
 		log.Fatal().Err(err).Msg("could not install udev rules")
 	}
 
 	// Setup NTP.
-	if err := NTP(); err != nil {
+	if err := ntp(); err != nil {
 		log.Fatal().Err(err).Msg("could not setup ntp")
 	}
 
 	// Setup mopidy.
-	if err := Mopidy(); err != nil {
+	if err := mopidy(); err != nil {
 		log.Fatal().Err(err).Msg("could not setup mopidy")
 	}
 
 	// Setup upmpdcli.
-	if err := Upmpdcli(); err != nil {
+	if err := upmpdcli(); err != nil {
 		log.Fatal().Err(err).Msg("could not setup upmpdcli")
 	}
 
+	// Setup snapcast.
+	if err := snapcast(); err != nil {
+		log.Fatal().Err(err).Msg("could not setup snapclient")
+	}
+
 	// Making system read-only.
 	if Cfg.ReadOnly {
-		if err := makeReadOnly(Cfg.System); err != nil {
+		if err := readOnly(Cfg.System); err != nil {
 			log.Fatal().Err(err).Msg("could not make system read-only")
 		}
 	}

pkg/rfid/rfid.go

@@ -65,7 +65,7 @@ func (r *RFID) Run() error {
 	}
 
 	go func() {
-		buf := make([]byte, 3)
+		buf := make([]byte, 3) // nolint:gomnd
 
 		rfid := ""
 

pkg/run/run.go

@@ -1,77 +1,16 @@
-//nolint:wrapcheck
 package run
 
 import (
-	"fmt"
-	"net/http"
-
-	"github.com/fhs/gompd/v2/mpd"
-	"github.com/prometheus/client_golang/prometheus/promhttp"
-	"github.com/rs/zerolog"
 	"github.com/rs/zerolog/log"
 	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
 	"go.xsfx.dev/schnutibox/internal/config"
-	"go.xsfx.dev/schnutibox/internal/metrics"
+	"go.xsfx.dev/schnutibox/pkg/mpc"
 	"go.xsfx.dev/schnutibox/pkg/rfid"
+	"go.xsfx.dev/schnutibox/pkg/watcher"
+	"go.xsfx.dev/schnutibox/pkg/web"
 )
 
-type mpc struct {
-	conn *mpd.Client
-}
-
-func newMpc(conn *mpd.Client) *mpc {
-	return &mpc{conn}
-}
-
-func (m *mpc) stop(logger zerolog.Logger) error {
-	logger.Info().Msg("trying to stop playback")
-
-	return m.conn.Stop()
-}
-
-func (m *mpc) clear(logger zerolog.Logger) error {
-	logger.Info().Msg("trying to clear playlist")
-
-	return m.conn.Clear()
-}
-
-func (m *mpc) play(logger zerolog.Logger, rfid string, name string, uris []string) error {
-	logger.Info().Msg("trying to add tracks")
-
-	// Metric labels.
-	mLabels := []string{rfid, name}
-
-	// Stop playing track.
-	if err := m.stop(logger); err != nil {
-		metrics.BoxErrors.Inc()
-
-		return err
-	}
-
-	// Clear playlist.
-	if err := m.clear(logger); err != nil {
-		metrics.BoxErrors.Inc()
-
-		return err
-	}
-
-	// Adding every single uri to playlist
-	for _, i := range uris {
-		logger.Debug().Str("uri", i).Msg("add track")
-
-		if err := m.conn.Add(i); err != nil {
-			metrics.BoxErrors.Inc()
-
-			return err
-		}
-	}
-
-	metrics.TracksPlayed.WithLabelValues(mLabels...).Inc()
-
-	return m.conn.Play(-1)
-}
-
-//nolint:funlen
 func Run(cmd *cobra.Command, args []string) {
 	log.Info().Msg("starting the RFID reader")
 
@@ -79,65 +18,58 @@ func Run(cmd *cobra.Command, args []string) {
 	r := rfid.NewRFID(config.Cfg, idChan)
 
 	if err := r.Run(); err != nil {
-		log.Fatal().Err(err).Msg("could not start RFID reader")
-	}
-
-	go func() {
-		var id string
-
-		for {
-			// Wating for a scanned tag.
-			id = <-idChan
-			logger := log.With().Str("id", id).Logger()
-			logger.Info().Msg("received id")
-
-			// Create MPD connection on every received event.
-			c, err := mpd.Dial("tcp", fmt.Sprintf("%s:%d", config.Cfg.MPD.Hostname, config.Cfg.MPD.Port))
-			if err != nil {
-				logger.Error().Err(err).Msg("could not connect to MPD server")
-
-				continue
-			}
-
-			m := newMpc(c)
-
-			// Check of stop tag was detected.
-			if id == config.Cfg.Meta.Stop {
-				logger.Info().Msg("stopping")
-
-				if err := m.stop(logger); err != nil {
-					logger.Error().Err(err).Msg("could not stop")
-				}
-
-				if err := m.clear(logger); err != nil {
-					logger.Error().Err(err).Msg("could not clear")
-				}
-
-				continue
-			}
-
-			// Check if there is a track for the ID.
-			tracks, ok := config.Cfg.Tracks[id]
-			if !ok {
-				logger.Error().Msg("could not find track for ID")
-
-				continue
-			}
-
-			// Try to play track.
-			if err := m.play(logger, id, tracks.Name, tracks.URIS); err != nil {
-				logger.Error().Err(err).Msg("could not play track")
-			}
+		if !viper.GetBool("reader.ignore") {
+			log.Fatal().Err(err).Msg("could not start RFID reader")
 		}
-	}()
 
-	l := fmt.Sprintf("%s:%d", config.Cfg.Box.Hostname, config.Cfg.Box.Port)
-
-	http.Handle("/metrics", promhttp.Handler())
-
-	log.Info().Msgf("serving on %s...", l)
-
-	if err := http.ListenAndServe(l, nil); err != nil {
-		log.Fatal().Err(err).Msg("")
+		log.Warn().Err(err).Msg("could not start RFID reader. ignoring...")
 	}
+
+	// Stating watcher.
+	watcher.Run()
+
+	// nolint:nestif
+	if !viper.GetBool("reader.ignore") {
+		go func() {
+			var id string
+
+			for {
+				// Wating for a scanned tag.
+				id = <-idChan
+				logger := log.With().Str("id", id).Logger()
+				logger.Info().Msg("received id")
+
+				// Check of stop tag was detected.
+				if id == config.Cfg.Meta.Stop {
+					logger.Info().Msg("stopping")
+
+					if err := mpc.Stop(logger); err != nil {
+						logger.Error().Err(err).Msg("could not stop")
+					}
+
+					if err := mpc.Clear(logger); err != nil {
+						logger.Error().Err(err).Msg("could not clear")
+					}
+
+					continue
+				}
+
+				// Check if there is a track for the ID.
+				tracks, ok := config.Cfg.Tracks[id]
+				if !ok {
+					logger.Error().Msg("could not find track for ID")
+
+					continue
+				}
+
+				// Try to play track.
+				if err := mpc.Play(logger, id, tracks.Name, tracks.Uris); err != nil {
+					logger.Error().Err(err).Msg("could not play track")
+				}
+			}
+		}()
+	}
+
+	// Running web interface. Blocking.
+	web.Run(cmd, args)
 }

pkg/sselog/sselog.go

@@ -1,20 +1,73 @@
 // package sselog is work in progress to implement a writer that sends its logs
 // to a http server side event.
+// nolint:gochecknoglobals,godox
 package sselog
 
+import (
+	"fmt"
+	"net/http"
+
+	"go.xsfx.dev/logginghandler"
+)
+
+// Log is the global sse logger struct.
+var Log *SSELog
+
 type SSELog struct {
-	LogChan   chan []byte
-	Receivers []chan string
+	Receivers map[chan []byte]struct{}
+}
+
+func NewSSELog() *SSELog {
+	return &SSELog{
+		Receivers: make(map[chan []byte]struct{}),
+	}
 }
 
 func (l SSELog) Write(p []byte) (n int, err error) {
-	wCount := 0
 	// Send log message to all receiver channels.
-	for _, i := range l.Receivers {
-		i <- string(p)
-
-		wCount = +len(p)
+	for r := range l.Receivers {
+		r <- p
 	}
 
-	return wCount, nil
+	return len(p), nil
+}
+
+func LogHandler(w http.ResponseWriter, r *http.Request) {
+	logger := logginghandler.Logger(r)
+
+	logger.Info().Msg("registering a new sse logger")
+
+	flusher, ok := w.(http.Flusher)
+	if !ok {
+		logger.Error().Msg("streaming unsupported")
+		http.Error(w, "streaming unsupported", http.StatusInternalServerError)
+
+		return
+	}
+
+	w.Header().Set("Content-Type", "text/event-stream")
+	w.Header().Set("Cache-Control", "no-cache")
+	w.Header().Set("Connection", "keep-alive")
+	// TODO: has to be something else!
+	w.Header().Set("Access-Control-Allow-Origin", "*")
+
+	cChan := make(chan []byte)
+
+	Log.Receivers[cChan] = struct{}{}
+
+	for {
+		select {
+		case e := <-cChan:
+			// Send event to client.
+			fmt.Fprintf(w, "data: %s\n\n", e)
+
+			// Send it right now and not buffering it.
+			flusher.Flush()
+		case <-r.Context().Done():
+			close(cChan)
+			delete(Log.Receivers, cChan)
+
+			return
+		}
+	}
 }

pkg/timer/timer.go

@@ -0,0 +1,79 @@
+package timer
+
+import (
+	"context"
+
+	"github.com/golang/protobuf/ptypes/duration"
+	"github.com/rs/zerolog/log"
+	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
+	"go.xsfx.dev/schnutibox/internal/config"
+	"go.xsfx.dev/schnutibox/internal/grpcclient"
+	api "go.xsfx.dev/schnutibox/pkg/api/v1"
+	"go.xsfx.dev/schnutibox/pkg/mpc"
+	"google.golang.org/protobuf/types/known/durationpb"
+)
+
+// T is the global Timer object.
+// nolint:gochecknoglobals
+var T = &Timer{}
+
+type Timer struct {
+	Req *api.Timer
+}
+
+func (t *Timer) Handle() {
+	if t.Req != nil {
+		// Initialize the current object.
+		if t.Req.Current == nil {
+			t.Req.Current = &duration.Duration{}
+			t.Req.Current.Seconds = t.Req.Duration.Seconds
+		}
+
+		switch {
+		// There is some timing going on.
+		case t.Req.Duration.Seconds != 0 && t.Req.Current.Seconds != 0:
+			log.Debug().
+				Int64("current", t.Req.Current.Seconds).
+				Int64("duration", t.Req.Duration.Seconds).
+				Msg("timer is running")
+
+			if t.Req.Current.Seconds > 0 {
+				t.Req.Current.Seconds--
+
+				return
+			}
+
+		// No timer is running... so setting the duration to 0.
+		case t.Req.Current.Seconds == 0 && t.Req.Duration.Seconds != 0:
+			log.Debug().Msg("stoping timer")
+
+			if err := mpc.Stop(log.Logger); err != nil {
+				log.Error().Err(err).Msg("could not stop")
+			}
+
+			t.Req.Duration.Seconds = 0
+		}
+	}
+}
+
+// Run is the command line interface for triggering the timer.
+func Run(cmd *cobra.Command, args []string) {
+	conn, err := grpcclient.Conn(config.Cfg.Web.Hostname, config.Cfg.Web.Port)
+	if err != nil {
+		log.Fatal().Err(err).Msg("could not connect")
+	}
+
+	c := api.NewTimerServiceClient(conn)
+
+	d := durationpb.New(viper.GetDuration("timer.duration"))
+
+	_, err = c.Create(context.Background(), &api.Timer{Duration: d})
+	if err != nil {
+		conn.Close()
+		log.Fatal().Err(err).Msg("could not create timer")
+	}
+
+	conn.Close()
+	log.Info().Msg("added timer")
+}

pkg/watcher/watcher.go

@@ -0,0 +1,75 @@
+package watcher
+
+import (
+	"fmt"
+	"time"
+
+	"github.com/rs/zerolog/log"
+	"go.xsfx.dev/schnutibox/internal/metrics"
+	"go.xsfx.dev/schnutibox/pkg/currentsong"
+	"go.xsfx.dev/schnutibox/pkg/mpc"
+	"go.xsfx.dev/schnutibox/pkg/timer"
+)
+
+const tickerTime = time.Second
+
+// Run runs actions after tickerTime is over, over again and again.
+// Right now its mostly used for setting metrics.
+func Run() {
+	log.Debug().Msg("starting watch")
+
+	ticker := time.NewTicker(tickerTime)
+
+	go func() {
+		for {
+			<-ticker.C
+
+			// Timer.
+			go timer.T.Handle()
+
+			// Metrics.
+			go func() {
+				m, err := mpc.Conn()
+				if err != nil {
+					log.Error().Err(err).Msg("could not connect")
+
+					return
+				}
+
+				uris, err := mpc.PlaylistURIS(m)
+				if err != nil {
+					log.Error().Err(err).Msg("could not get playlist uris")
+					metrics.BoxErrors.Inc()
+
+					return
+				}
+
+				// Gettings MPD state.
+				s, err := m.Status()
+				if err != nil {
+					log.Error().Err(err).Msg("could not get status")
+					metrics.BoxErrors.Inc()
+
+					return
+				}
+
+				currentSong, err := m.CurrentSong()
+				if err != nil {
+					log.Error().Err(err).Msg("could not get current song")
+					metrics.BoxErrors.Inc()
+
+					return
+				}
+
+				if len(currentSong) != 0 {
+					currentsong.Write(fmt.Sprintf("%s - %s", currentSong["Artist"], currentSong["Track"]))
+				} else {
+					currentsong.Write("")
+				}
+
+				// Sets the metrics.
+				metrics.Set(uris, s["state"])
+			}()
+		}
+	}()
+}

pkg/web/timer_test.go

@@ -0,0 +1,45 @@
+package web_test
+
+import (
+	"context"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+	api "go.xsfx.dev/schnutibox/pkg/api/v1"
+	"go.xsfx.dev/schnutibox/pkg/web"
+	"google.golang.org/protobuf/types/known/durationpb"
+)
+
+func TestTimerService(t *testing.T) {
+	t.Parallel()
+
+	tables := []struct {
+		name     string
+		req      *api.Timer
+		expected *api.Timer
+		err      error
+	}{
+		{
+			"10 seconds",
+			&api.Timer{Duration: &durationpb.Duration{Seconds: 10}},
+			&api.Timer{Duration: &durationpb.Duration{Seconds: 10}},
+			nil,
+		},
+	}
+
+	for _, table := range tables {
+		table := table
+		t.Run(table.name, func(t *testing.T) {
+			t.Parallel()
+			require := require.New(t)
+			ctx := context.Background()
+			timerSvc := web.TimerServer{}
+			resp, err := timerSvc.Create(ctx, &api.Timer{Duration: &durationpb.Duration{Seconds: 10}})
+			if table.err == nil {
+				require.NoError(err)
+			}
+
+			require.Equal(table.expected, resp)
+		})
+	}
+}

pkg/web/web.go

@@ -0,0 +1,172 @@
+package web
+
+import (
+	"context"
+	"fmt"
+	"html/template"
+	"net/http"
+	"net/http/pprof"
+	"strings"
+
+	"github.com/grpc-ecosystem/grpc-gateway/v2/runtime"
+	zerolog "github.com/philip-bui/grpc-zerolog"
+	"github.com/prometheus/client_golang/prometheus/promhttp"
+	"github.com/rs/zerolog/log"
+	"github.com/spf13/cobra"
+	"go.xsfx.dev/logginghandler"
+	assets "go.xsfx.dev/schnutibox/assets/web"
+	"go.xsfx.dev/schnutibox/internal/config"
+	api "go.xsfx.dev/schnutibox/pkg/api/v1"
+	"go.xsfx.dev/schnutibox/pkg/currentsong"
+	"go.xsfx.dev/schnutibox/pkg/sselog"
+	"go.xsfx.dev/schnutibox/pkg/timer"
+	"golang.org/x/net/http2"
+	"golang.org/x/net/http2/h2c"
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/reflection"
+)
+
+func root(w http.ResponseWriter, r *http.Request) {
+	logger := logginghandler.Logger(r)
+
+	t, err := template.ParseFS(assets.Templates, "templates/index.html.tmpl")
+	if err != nil {
+		logger.Error().Err(err).Msg("could not parse template")
+		http.Error(w, "could not parse template", http.StatusInternalServerError)
+
+		return
+	}
+
+	if err := t.Execute(w, struct{}{}); err != nil {
+		logger.Error().Err(err).Msg("could not execute template")
+		http.Error(w, "could not execute template", http.StatusInternalServerError)
+
+		return
+	}
+}
+
+// grpcHandlerFunc reads header and returns a grpc handler or a http one.
+// nolint:interfacer
+func grpcHandlerFunc(grpcServer *grpc.Server, otherHandler http.Handler) http.Handler {
+	return h2c.NewHandler(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if r.ProtoMajor == 2 && strings.Contains(r.Header.Get("Content-Type"), "application/grpc") {
+			grpcServer.ServeHTTP(w, r)
+		} else {
+			otherHandler.ServeHTTP(w, r)
+		}
+	}), &http2.Server{})
+}
+
+type identifyServer struct{}
+
+// Identify searches in tracks config for entries and returns them.
+// nolint:goerr113
+func (i identifyServer) Identify(ctx context.Context, in *api.IdentifyRequest) (*api.IdentifyResponse, error) {
+	r := &api.IdentifyResponse{}
+
+	if in.Id == "" {
+		return r, fmt.Errorf("no id in request specified")
+	}
+
+	t, ok := config.Cfg.Tracks[in.Id]
+	if !ok {
+		return r, fmt.Errorf("could not find track for id: %s", in.Id)
+	}
+
+	r.Name = t.Name
+	r.Uris = t.Uris
+
+	return r, nil
+}
+
+type TimerServer struct{}
+
+func (t TimerServer) Create(ctx context.Context, req *api.Timer) (*api.Timer, error) {
+	timer.T.Req = req
+
+	return timer.T.Req, nil
+}
+
+// Get just returns the status of the timer.
+func (t TimerServer) Get(ctx context.Context, req *api.TimerEmpty) (*api.Timer, error) {
+	// Nothing there yet, so return a fresh struct.
+	if timer.T.Req == nil {
+		return &api.Timer{}, nil
+	}
+
+	return timer.T.Req, nil
+}
+
+func currentSong(w http.ResponseWriter, r *http.Request) {}
+
+func gw(s *grpc.Server, conn string) *runtime.ServeMux {
+	ctx := context.Background()
+	gopts := []grpc.DialOption{grpc.WithInsecure()}
+
+	api.RegisterIdentifierServiceServer(s, identifyServer{})
+	api.RegisterTimerServiceServer(s, TimerServer{})
+
+	// Adds reflections.
+	reflection.Register(s)
+
+	gwmux := runtime.NewServeMux()
+	if err := api.RegisterIdentifierServiceHandlerFromEndpoint(ctx, gwmux, conn, gopts); err != nil {
+		log.Fatal().Err(err).Msg("could not register grpc endpoint")
+	}
+
+	if err := api.RegisterTimerServiceHandlerFromEndpoint(ctx, gwmux, conn, gopts); err != nil {
+		log.Fatal().Err(err).Msg("could not register grpc endpoint")
+	}
+
+	return gwmux
+}
+
+func Run(command *cobra.Command, args []string) {
+	// Create host string for serving web.
+	lh := fmt.Sprintf("%s:%d", config.Cfg.Web.Hostname, config.Cfg.Web.Port)
+
+	// Create grpc server.
+	grpcServer := grpc.NewServer(
+		zerolog.UnaryInterceptor(),
+	)
+
+	// Define http handlers.
+	mux := http.NewServeMux()
+
+	mux.Handle("/", http.HandlerFunc(root))
+
+	mux.Handle("/log", http.HandlerFunc(sselog.LogHandler))
+	mux.Handle("/currentsong", http.HandlerFunc(currentsong.Handler))
+
+	mux.Handle(
+		"/static/",
+		http.StripPrefix("/static/", http.FileServer(assets.Files)),
+	)
+
+	mux.Handle(
+		"/swagger-ui/",
+		http.StripPrefix("/swagger-ui/", http.FileServer(assets.SwaggerUI)),
+	)
+
+	mux.Handle("/metrics", promhttp.Handler())
+
+	mux.Handle("/api/", gw(grpcServer, lh))
+
+	// PPROF.
+	if config.Cfg.Debug.PPROF {
+		mux.HandleFunc("/debug/pprof/", pprof.Index)
+	}
+
+	// Serving http.
+	log.Info().Msgf("serving HTTP on %s...", lh)
+
+	log.Fatal().Err(
+		http.ListenAndServe(
+			lh,
+			grpcHandlerFunc(
+				grpcServer,
+				logginghandler.Handler(mux),
+			),
+		),
+	).Msg("goodbye")
+}

scripts/build.sh

@@ -1,36 +0,0 @@
-#!/bin/sh
-set -ex
-
-if [ -z "$RASPBIAN_IMAGE" ]; then
-        echo "missing \$RASPBIAN_IMAGE environment variable"
-        exit 1
-fi
-imagePath=$RASPBIAN_IMAGE
-
-# resize partition
-truncate -s +3G "$imagePath"
-parted "$imagePath" resizepart 2 3G
-
-# create loop devices
-bootLoopDevice="$(kpartx -l "$imagePath" | sed -n 1p | awk '{print $1}')"
-systemLoopDevice="$(kpartx -l "$imagePath" | sed -n 2p | awk '{print $1}')"
-
-if [ -z "$bootLoopDevice" ] || [ -z "$systemLoopDevice" ]; then
-        echo "could not extract loop devices"
-        exit 1
-fi
-
-kpartx -avs "$imagePath"
-
-# resize filesystem
-resize2fs "/dev/mapper/${systemLoopDevice}"
-
-# enable ssh
-mkdir -p boot
-mount -o loop "/dev/mapper/${bootLoopDevice}" boot
-touch boot/ssh
-
-# cleaning up
-umount boot
-kpartx -d "$imagePath"
-rm -rf boot

scripts/putio/main.go

@@ -0,0 +1,3 @@
+package main
+
+func main() {}

scripts/rpi-image-test/build.sh

@@ -0,0 +1,54 @@
+#!/bin/sh -eux
+
+set -ex
+
+RASPBIAN_IMAGE=2021-05-07-raspios-buster-armhf-lite.img
+
+# prepare
+# =======
+mkdir /SWAP
+mount -t 9p -o trans=virtio,version=9p2000.L host0 /SWAP
+
+echo "http://dl-cdn.alpinelinux.org/alpine/v3.13/community/" >>/etc/apk/repositories
+apk add aria2 coreutils e2fsprogs-extra parted util-linux multipath-tools
+
+cd /SWAP
+
+aria2c --seed-time=0 https://downloads.raspberrypi.org/raspios_lite_armhf/images/raspios_lite_armhf-2021-05-28/2021-05-07-raspios-buster-armhf-lite.zip.torrent
+unzip 2021-05-07-raspios-buster-armhf-lite.zip
+
+rm 2021-05-07-raspios-buster-armhf-lite.zip*
+
+# building
+# ========
+imagePath=$RASPBIAN_IMAGE
+
+# resize partition
+truncate -s +5G "$imagePath"
+parted "$imagePath" resizepart 2 5G
+
+# create loop devices
+kpartx -avs "$imagePath"
+
+ls -la /dev/mapper
+
+bootLoopDevice="$(find /dev/mapper -name 'loop*p1')"
+systemLoopDevice="$(find /dev/mapper -name 'loop*p2')"
+
+if [ -z "$bootLoopDevice" ] || [ -z "$systemLoopDevice" ]; then
+        echo "could not extract loop devices"
+        exit 1
+fi
+
+# resize filesystem
+resize2fs "$systemLoopDevice"
+
+# enable ssh
+mkdir -p boot
+mount "$bootLoopDevice" boot
+touch boot/ssh
+
+# cleaning up
+umount boot
+kpartx -d "$imagePath"
+rm -rf boot

tools.go

@@ -0,0 +1,14 @@
+// +build tools
+
+package main
+
+import (
+	_ "github.com/bufbuild/buf/cmd/buf"
+	_ "github.com/bufbuild/buf/cmd/protoc-gen-buf-breaking"
+	_ "github.com/bufbuild/buf/cmd/protoc-gen-buf-lint"
+	_ "github.com/cosmtrek/air"
+	_ "github.com/grpc-ecosystem/grpc-gateway/v2/protoc-gen-grpc-gateway"
+	_ "github.com/grpc-ecosystem/grpc-gateway/v2/protoc-gen-openapiv2"
+	_ "google.golang.org/grpc/cmd/protoc-gen-go-grpc"
+	_ "google.golang.org/protobuf/cmd/protoc-gen-go"
+)

vendor/github.com/bgentry/go-netrc/LICENSE

@@ -0,0 +1,20 @@
+Original version Copyright © 2010 Fazlul Shahriar <fshahriar@gmail.com>. Newer
+portions Copyright © 2014 Blake Gentry <blakesgentry@gmail.com>.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

vendor/github.com/bgentry/go-netrc/netrc/netrc.go

@@ -0,0 +1,510 @@
+package netrc
+
+import (
+	"bufio"
+	"bytes"
+	"fmt"
+	"io"
+	"io/ioutil"
+	"os"
+	"strings"
+	"sync"
+	"unicode"
+	"unicode/utf8"
+)
+
+type tkType int
+
+const (
+	tkMachine tkType = iota
+	tkDefault
+	tkLogin
+	tkPassword
+	tkAccount
+	tkMacdef
+	tkComment
+	tkWhitespace
+)
+
+var keywords = map[string]tkType{
+	"machine":  tkMachine,
+	"default":  tkDefault,
+	"login":    tkLogin,
+	"password": tkPassword,
+	"account":  tkAccount,
+	"macdef":   tkMacdef,
+	"#":        tkComment,
+}
+
+type Netrc struct {
+	tokens     []*token
+	machines   []*Machine
+	macros     Macros
+	updateLock sync.Mutex
+}
+
+// FindMachine returns the Machine in n named by name. If a machine named by
+// name exists, it is returned. If no Machine with name name is found and there
+// is a ``default'' machine, the ``default'' machine is returned. Otherwise, nil
+// is returned.
+func (n *Netrc) FindMachine(name string) (m *Machine) {
+	// TODO(bgentry): not safe for concurrency
+	var def *Machine
+	for _, m = range n.machines {
+		if m.Name == name {
+			return m
+		}
+		if m.IsDefault() {
+			def = m
+		}
+	}
+	if def == nil {
+		return nil
+	}
+	return def
+}
+
+// MarshalText implements the encoding.TextMarshaler interface to encode a
+// Netrc into text format.
+func (n *Netrc) MarshalText() (text []byte, err error) {
+	// TODO(bgentry): not safe for concurrency
+	for i := range n.tokens {
+		switch n.tokens[i].kind {
+		case tkComment, tkDefault, tkWhitespace: // always append these types
+			text = append(text, n.tokens[i].rawkind...)
+		default:
+			if n.tokens[i].value != "" { // skip empty-value tokens
+				text = append(text, n.tokens[i].rawkind...)
+			}
+		}
+		if n.tokens[i].kind == tkMacdef {
+			text = append(text, ' ')
+			text = append(text, n.tokens[i].macroName...)
+		}
+		text = append(text, n.tokens[i].rawvalue...)
+	}
+	return
+}
+
+func (n *Netrc) NewMachine(name, login, password, account string) *Machine {
+	n.updateLock.Lock()
+	defer n.updateLock.Unlock()
+
+	prefix := "\n"
+	if len(n.tokens) == 0 {
+		prefix = ""
+	}
+	m := &Machine{
+		Name:     name,
+		Login:    login,
+		Password: password,
+		Account:  account,
+
+		nametoken: &token{
+			kind:     tkMachine,
+			rawkind:  []byte(prefix + "machine"),
+			value:    name,
+			rawvalue: []byte(" " + name),
+		},
+		logintoken: &token{
+			kind:     tkLogin,
+			rawkind:  []byte("\n\tlogin"),
+			value:    login,
+			rawvalue: []byte(" " + login),
+		},
+		passtoken: &token{
+			kind:     tkPassword,
+			rawkind:  []byte("\n\tpassword"),
+			value:    password,
+			rawvalue: []byte(" " + password),
+		},
+		accounttoken: &token{
+			kind:     tkAccount,
+			rawkind:  []byte("\n\taccount"),
+			value:    account,
+			rawvalue: []byte(" " + account),
+		},
+	}
+	n.insertMachineTokensBeforeDefault(m)
+	for i := range n.machines {
+		if n.machines[i].IsDefault() {
+			n.machines = append(append(n.machines[:i], m), n.machines[i:]...)
+			return m
+		}
+	}
+	n.machines = append(n.machines, m)
+	return m
+}
+
+func (n *Netrc) insertMachineTokensBeforeDefault(m *Machine) {
+	newtokens := []*token{m.nametoken}
+	if m.logintoken.value != "" {
+		newtokens = append(newtokens, m.logintoken)
+	}
+	if m.passtoken.value != "" {
+		newtokens = append(newtokens, m.passtoken)
+	}
+	if m.accounttoken.value != "" {
+		newtokens = append(newtokens, m.accounttoken)
+	}
+	for i := range n.tokens {
+		if n.tokens[i].kind == tkDefault {
+			// found the default, now insert tokens before it
+			n.tokens = append(n.tokens[:i], append(newtokens, n.tokens[i:]...)...)
+			return
+		}
+	}
+	// didn't find a default, just add the newtokens to the end
+	n.tokens = append(n.tokens, newtokens...)
+	return
+}
+
+func (n *Netrc) RemoveMachine(name string) {
+	n.updateLock.Lock()
+	defer n.updateLock.Unlock()
+
+	for i := range n.machines {
+		if n.machines[i] != nil && n.machines[i].Name == name {
+			m := n.machines[i]
+			for _, t := range []*token{
+				m.nametoken, m.logintoken, m.passtoken, m.accounttoken,
+			} {
+				n.removeToken(t)
+			}
+			n.machines = append(n.machines[:i], n.machines[i+1:]...)
+			return
+		}
+	}
+}
+
+func (n *Netrc) removeToken(t *token) {
+	if t != nil {
+		for i := range n.tokens {
+			if n.tokens[i] == t {
+				n.tokens = append(n.tokens[:i], n.tokens[i+1:]...)
+				return
+			}
+		}
+	}
+}
+
+// Machine contains information about a remote machine.
+type Machine struct {
+	Name     string
+	Login    string
+	Password string
+	Account  string
+
+	nametoken    *token
+	logintoken   *token
+	passtoken    *token
+	accounttoken *token
+}
+
+// IsDefault returns true if the machine is a "default" token, denoted by an
+// empty name.
+func (m *Machine) IsDefault() bool {
+	return m.Name == ""
+}
+
+// UpdatePassword sets the password for the Machine m.
+func (m *Machine) UpdatePassword(newpass string) {
+	m.Password = newpass
+	updateTokenValue(m.passtoken, newpass)
+}
+
+// UpdateLogin sets the login for the Machine m.
+func (m *Machine) UpdateLogin(newlogin string) {
+	m.Login = newlogin
+	updateTokenValue(m.logintoken, newlogin)
+}
+
+// UpdateAccount sets the login for the Machine m.
+func (m *Machine) UpdateAccount(newaccount string) {
+	m.Account = newaccount
+	updateTokenValue(m.accounttoken, newaccount)
+}
+
+func updateTokenValue(t *token, value string) {
+	oldvalue := t.value
+	t.value = value
+	newraw := make([]byte, len(t.rawvalue))
+	copy(newraw, t.rawvalue)
+	t.rawvalue = append(
+		bytes.TrimSuffix(newraw, []byte(oldvalue)),
+		[]byte(value)...,
+	)
+}
+
+// Macros contains all the macro definitions in a netrc file.
+type Macros map[string]string
+
+type token struct {
+	kind      tkType
+	macroName string
+	value     string
+	rawkind   []byte
+	rawvalue  []byte
+}
+
+// Error represents a netrc file parse error.
+type Error struct {
+	LineNum int    // Line number
+	Msg     string // Error message
+}
+
+// Error returns a string representation of error e.
+func (e *Error) Error() string {
+	return fmt.Sprintf("line %d: %s", e.LineNum, e.Msg)
+}
+
+func (e *Error) BadDefaultOrder() bool {
+	return e.Msg == errBadDefaultOrder
+}
+
+const errBadDefaultOrder = "default token must appear after all machine tokens"
+
+// scanLinesKeepPrefix is a split function for a Scanner that returns each line
+// of text. The returned token may include newlines if they are before the
+// first non-space character. The returned line may be empty. The end-of-line
+// marker is one optional carriage return followed by one mandatory newline. In
+// regular expression notation, it is `\r?\n`. The last non-empty line of
+// input will be returned even if it has no newline.
+func scanLinesKeepPrefix(data []byte, atEOF bool) (advance int, token []byte, err error) {
+	if atEOF && len(data) == 0 {
+		return 0, nil, nil
+	}
+	// Skip leading spaces.
+	start := 0
+	for width := 0; start < len(data); start += width {
+		var r rune
+		r, width = utf8.DecodeRune(data[start:])
+		if !unicode.IsSpace(r) {
+			break
+		}
+	}
+	if i := bytes.IndexByte(data[start:], '\n'); i >= 0 {
+		// We have a full newline-terminated line.
+		return start + i, data[0 : start+i], nil
+	}
+	// If we're at EOF, we have a final, non-terminated line. Return it.
+	if atEOF {
+		return len(data), data, nil
+	}
+	// Request more data.
+	return 0, nil, nil
+}
+
+// scanWordsKeepPrefix is a split function for a Scanner that returns each
+// space-separated word of text, with prefixing spaces included. It will never
+// return an empty string. The definition of space is set by unicode.IsSpace.
+//
+// Adapted from bufio.ScanWords().
+func scanTokensKeepPrefix(data []byte, atEOF bool) (advance int, token []byte, err error) {
+	// Skip leading spaces.
+	start := 0
+	for width := 0; start < len(data); start += width {
+		var r rune
+		r, width = utf8.DecodeRune(data[start:])
+		if !unicode.IsSpace(r) {
+			break
+		}
+	}
+	if atEOF && len(data) == 0 || start == len(data) {
+		return len(data), data, nil
+	}
+	if len(data) > start && data[start] == '#' {
+		return scanLinesKeepPrefix(data, atEOF)
+	}
+	// Scan until space, marking end of word.
+	for width, i := 0, start; i < len(data); i += width {
+		var r rune
+		r, width = utf8.DecodeRune(data[i:])
+		if unicode.IsSpace(r) {
+			return i, data[:i], nil
+		}
+	}
+	// If we're at EOF, we have a final, non-empty, non-terminated word. Return it.
+	if atEOF && len(data) > start {
+		return len(data), data, nil
+	}
+	// Request more data.
+	return 0, nil, nil
+}
+
+func newToken(rawb []byte) (*token, error) {
+	_, tkind, err := bufio.ScanWords(rawb, true)
+	if err != nil {
+		return nil, err
+	}
+	var ok bool
+	t := token{rawkind: rawb}
+	t.kind, ok = keywords[string(tkind)]
+	if !ok {
+		trimmed := strings.TrimSpace(string(tkind))
+		if trimmed == "" {
+			t.kind = tkWhitespace // whitespace-only, should happen only at EOF
+			return &t, nil
+		}
+		if strings.HasPrefix(trimmed, "#") {
+			t.kind = tkComment // this is a comment
+			return &t, nil
+		}
+		return &t, fmt.Errorf("keyword expected; got " + string(tkind))
+	}
+	return &t, nil
+}
+
+func scanValue(scanner *bufio.Scanner, pos int) ([]byte, string, int, error) {
+	if scanner.Scan() {
+		raw := scanner.Bytes()
+		pos += bytes.Count(raw, []byte{'\n'})
+		return raw, strings.TrimSpace(string(raw)), pos, nil
+	}
+	if err := scanner.Err(); err != nil {
+		return nil, "", pos, &Error{pos, err.Error()}
+	}
+	return nil, "", pos, nil
+}
+
+func parse(r io.Reader, pos int) (*Netrc, error) {
+	b, err := ioutil.ReadAll(r)
+	if err != nil {
+		return nil, err
+	}
+
+	nrc := Netrc{machines: make([]*Machine, 0, 20), macros: make(Macros, 10)}
+
+	defaultSeen := false
+	var currentMacro *token
+	var m *Machine
+	var t *token
+	scanner := bufio.NewScanner(bytes.NewReader(b))
+	scanner.Split(scanTokensKeepPrefix)
+
+	for scanner.Scan() {
+		rawb := scanner.Bytes()
+		if len(rawb) == 0 {
+			break
+		}
+		pos += bytes.Count(rawb, []byte{'\n'})
+		t, err = newToken(rawb)
+		if err != nil {
+			if currentMacro == nil {
+				return nil, &Error{pos, err.Error()}
+			}
+			currentMacro.rawvalue = append(currentMacro.rawvalue, rawb...)
+			continue
+		}
+
+		if currentMacro != nil && bytes.Contains(rawb, []byte{'\n', '\n'}) {
+			// if macro rawvalue + rawb would contain \n\n, then macro def is over
+			currentMacro.value = strings.TrimLeft(string(currentMacro.rawvalue), "\r\n")
+			nrc.macros[currentMacro.macroName] = currentMacro.value
+			currentMacro = nil
+		}
+
+		switch t.kind {
+		case tkMacdef:
+			if _, t.macroName, pos, err = scanValue(scanner, pos); err != nil {
+				return nil, &Error{pos, err.Error()}
+			}
+			currentMacro = t
+		case tkDefault:
+			if defaultSeen {
+				return nil, &Error{pos, "multiple default token"}
+			}
+			if m != nil {
+				nrc.machines, m = append(nrc.machines, m), nil
+			}
+			m = new(Machine)
+			m.Name = ""
+			defaultSeen = true
+		case tkMachine:
+			if defaultSeen {
+				return nil, &Error{pos, errBadDefaultOrder}
+			}
+			if m != nil {
+				nrc.machines, m = append(nrc.machines, m), nil
+			}
+			m = new(Machine)
+			if t.rawvalue, m.Name, pos, err = scanValue(scanner, pos); err != nil {
+				return nil, &Error{pos, err.Error()}
+			}
+			t.value = m.Name
+			m.nametoken = t
+		case tkLogin:
+			if m == nil || m.Login != "" {
+				return nil, &Error{pos, "unexpected token login "}
+			}
+			if t.rawvalue, m.Login, pos, err = scanValue(scanner, pos); err != nil {
+				return nil, &Error{pos, err.Error()}
+			}
+			t.value = m.Login
+			m.logintoken = t
+		case tkPassword:
+			if m == nil || m.Password != "" {
+				return nil, &Error{pos, "unexpected token password"}
+			}
+			if t.rawvalue, m.Password, pos, err = scanValue(scanner, pos); err != nil {
+				return nil, &Error{pos, err.Error()}
+			}
+			t.value = m.Password
+			m.passtoken = t
+		case tkAccount:
+			if m == nil || m.Account != "" {
+				return nil, &Error{pos, "unexpected token account"}
+			}
+			if t.rawvalue, m.Account, pos, err = scanValue(scanner, pos); err != nil {
+				return nil, &Error{pos, err.Error()}
+			}
+			t.value = m.Account
+			m.accounttoken = t
+		}
+
+		nrc.tokens = append(nrc.tokens, t)
+	}
+
+	if err := scanner.Err(); err != nil {
+		return nil, err
+	}
+
+	if m != nil {
+		nrc.machines, m = append(nrc.machines, m), nil
+	}
+	return &nrc, nil
+}
+
+// ParseFile opens the file at filename and then passes its io.Reader to
+// Parse().
+func ParseFile(filename string) (*Netrc, error) {
+	fd, err := os.Open(filename)
+	if err != nil {
+		return nil, err
+	}
+	defer fd.Close()
+	return Parse(fd)
+}
+
+// Parse parses from the the Reader r as a netrc file and returns the set of
+// machine information and macros defined in it. The ``default'' machine,
+// which is intended to be used when no machine name matches, is identified
+// by an empty machine name. There can be only one ``default'' machine.
+//
+// If there is a parsing error, an Error is returned.
+func Parse(r io.Reader) (*Netrc, error) {
+	return parse(r, 1)
+}
+
+// FindMachine parses the netrc file identified by filename and returns the
+// Machine named by name. If a problem occurs parsing the file at filename, an
+// error is returned. If a machine named by name exists, it is returned. If no
+// Machine with name name is found and there is a ``default'' machine, the
+// ``default'' machine is returned. Otherwise, nil is returned.
+func FindMachine(filename, name string) (m *Machine, err error) {
+	n, err := ParseFile(filename)
+	if err != nil {
+		return nil, err
+	}
+	return n.FindMachine(name), nil
+}

vendor/github.com/bufbuild/buf/LICENSE

@@ -0,0 +1,201 @@
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      copyright license to reproduce, prepare Derivative Works of,
+      publicly display, publicly perform, sublicense, and distribute the
+      Work and such Derivative Works in Source or Object form.
+
+   3. Grant of Patent License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      (except as stated in this section) patent license to make, have made,
+      use, offer to sell, sell, import, and otherwise transfer the Work,
+      where such license applies only to those patent claims licensable
+      by such Contributor that are necessarily infringed by their
+      Contribution(s) alone or by combination of their Contribution(s)
+      with the Work to which such Contribution(s) was submitted. If You
+      institute patent litigation against any entity (including a
+      cross-claim or counterclaim in a lawsuit) alleging that the Work
+      or a Contribution incorporated within the Work constitutes direct
+      or contributory patent infringement, then any patent licenses
+      granted to You under this License for that Work shall terminate
+      as of the date such litigation is filed.
+
+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
+      modifications, and in Source or Object form, provided that You
+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
+      (b) You must cause any modified files to carry prominent notices
+          stating that You changed the files; and
+
+      (c) You must retain, in the Source form of any Derivative Works
+          that You distribute, all copyright, patent, trademark, and
+          attribution notices from the Source form of the Work,
+          excluding those notices that do not pertain to any part of
+          the Derivative Works; and
+
+      (d) If the Work includes a "NOTICE" text file as part of its
+          distribution, then any Derivative Works that You distribute must
+          include a readable copy of the attribution notices contained
+          within such NOTICE file, excluding those notices that do not
+          pertain to any part of the Derivative Works, in at least one
+          of the following places: within a NOTICE text file distributed
+          as part of the Derivative Works; within the Source form or
+          documentation, if provided along with the Derivative Works; or,
+          within a display generated by the Derivative Works, if and
+          wherever such third-party notices normally appear. The contents
+          of the NOTICE file are for informational purposes only and
+          do not modify the License. You may add Your own attribution
+          notices within Derivative Works that You distribute, alongside
+          or as an addendum to the NOTICE text from the Work, provided
+          that such additional attribution notices cannot be construed
+          as modifying the License.
+
+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+      implied, including, without limitation, any warranties or conditions
+      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
+      and charge a fee for, acceptance of support, warranty, indemnity,
+      or other liability obligations and/or rights consistent with this
+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "[]"
+      replaced with your own identifying information. (Don't include
+      the brackets!)  The text should be enclosed in the appropriate
+      comment syntax for the file format. We also recommend that a
+      file or class name and description of purpose be included on the
+      same "printed page" as the copyright notice for easier
+      identification within third-party archives.
+
+   Copyright 2020-2021 Buf Technologies, Inc.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.

vendor/github.com/bufbuild/buf/cmd/buf/main.go

@@ -0,0 +1,21 @@
+// Copyright 2020-2021 Buf Technologies, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package main
+
+import "github.com/bufbuild/buf/internal/buf/cmd/buf"
+
+func main() {
+	buf.Main("buf")
+}

vendor/github.com/bufbuild/buf/cmd/protoc-gen-buf-breaking/main.go

@@ -0,0 +1,21 @@
+// Copyright 2020-2021 Buf Technologies, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package main
+
+import breaking "github.com/bufbuild/buf/internal/buf/cmd/protoc-gen-buf-breaking"
+
+func main() {
+	breaking.Main()
+}

vendor/github.com/bufbuild/buf/cmd/protoc-gen-buf-lint/main.go

@@ -0,0 +1,21 @@
+// Copyright 2020-2021 Buf Technologies, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package main
+
+import lint "github.com/bufbuild/buf/internal/buf/cmd/protoc-gen-buf-lint"
+
+func main() {
+	lint.Main()
+}

vendor/github.com/bufbuild/buf/internal/buf/bufanalysis/bufanalysis.go

@@ -0,0 +1,286 @@
+// Copyright 2020-2021 Buf Technologies, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package bufanalysis
+
+import (
+	"encoding/json"
+	"fmt"
+	"io"
+	"sort"
+	"strconv"
+	"strings"
+)
+
+const (
+	// FormatText is the text format for FileAnnotations.
+	FormatText Format = iota + 1
+	// FormatJSON is the JSON format for FileAnnotations.
+	FormatJSON
+	// FormatMSVS is the MSVS format for FileAnnotations.
+	FormatMSVS
+)
+
+var (
+	// AllFormatStrings is all format strings without aliases.
+	//
+	// Sorted in the order we want to display them.
+	AllFormatStrings = []string{
+		"text",
+		"json",
+		"msvs",
+	}
+	// AllFormatStringsWithAliases is all format strings with aliases.
+	//
+	// Sorted in the order we want to display them.
+	AllFormatStringsWithAliases = []string{
+		"text",
+		"gcc",
+		"json",
+		"msvs",
+	}
+
+	stringToFormat = map[string]Format{
+		"text": FormatText,
+		// alias for text
+		"gcc":  FormatText,
+		"json": FormatJSON,
+		"msvs": FormatMSVS,
+	}
+	formatToString = map[Format]string{
+		FormatText: "text",
+		FormatJSON: "json",
+		FormatMSVS: "msvs",
+	}
+)
+
+// Format is a FileAnnotation format.
+type Format int
+
+// String implements fmt.Stringer.
+func (f Format) String() string {
+	s, ok := formatToString[f]
+	if !ok {
+		return strconv.Itoa(int(f))
+	}
+	return s
+}
+
+// ParseFormat parses the Format.
+//
+// The empty strings defaults to FormatText.
+func ParseFormat(s string) (Format, error) {
+	s = strings.ToLower(strings.TrimSpace(s))
+	if s == "" {
+		return FormatText, nil
+	}
+	f, ok := stringToFormat[s]
+	if ok {
+		return f, nil
+	}
+	return 0, fmt.Errorf("unknown format: %q", s)
+}
+
+// FileInfo is a minimal FileInfo interface.
+type FileInfo interface {
+	Path() string
+	ExternalPath() string
+}
+
+// FileAnnotation is a file annotation.
+type FileAnnotation interface {
+	// Stringer returns the string representation in text format.
+	fmt.Stringer
+	// Marshaler returns the string representation in JSON foramt.
+	json.Marshaler
+	// MSVSString returns the string representation in MSVS format.
+	//
+	// https://docs.microsoft.com/en-us/cpp/build/formatting-the-output-of-a-custom-build-step-or-build-event?view=vs-2019
+	MSVSString() string
+
+	// FileInfo is the FileInfo for this annotation.
+	//
+	// This may be nil.
+	FileInfo() FileInfo
+
+	// StartLine is the starting line.
+	//
+	// If the starting line is not known, this will be 0.
+	StartLine() int
+	// StartColumn is the starting column.
+	//
+	// If the starting column is not known, this will be 0.
+	StartColumn() int
+	// EndLine is the ending line.
+	//
+	// If the ending line is not known, this will be 0.
+	// If the ending line is the same as the starting line, this will be explicitly
+	// set to the same value as start_line.
+	EndLine() int
+	// EndColumn is the ending column.
+	//
+	// If the ending column is not known, this will be 0.
+	// If the ending column is the same as the starting column, this will be explicitly
+	// set to the same value as start_column.
+	EndColumn() int
+	// Type is the type of annotation, typically an ID representing a failure type.
+	Type() string
+	// Message is the message of the annotation.
+	Message() string
+}
+
+// NewFileAnnotation returns a new FileAnnotation.
+func NewFileAnnotation(
+	fileInfo FileInfo,
+	startLine int,
+	startColumn int,
+	endLine int,
+	endColumn int,
+	typeString string,
+	message string,
+) FileAnnotation {
+	return newFileAnnotation(
+		fileInfo,
+		startLine,
+		startColumn,
+		endLine,
+		endColumn,
+		typeString,
+		message,
+	)
+}
+
+// SortFileAnnotations sorts the FileAnnotations.
+//
+// The order of sorting is:
+//
+//   ExternalPath
+//   StartLine
+//   StartColumn
+//   Type
+//   Message
+//   EndLine
+//   EndColumn
+func SortFileAnnotations(fileAnnotations []FileAnnotation) {
+	sort.Stable(sortFileAnnotations(fileAnnotations))
+}
+
+// PrintFileAnnotations prints the file annotations separated by newlines.
+func PrintFileAnnotations(writer io.Writer, fileAnnotations []FileAnnotation, formatString string) error {
+	format, err := ParseFormat(formatString)
+	if err != nil {
+		return err
+	}
+	for _, fileAnnotation := range fileAnnotations {
+		s, err := FormatFileAnnotation(fileAnnotation, format)
+		if err != nil {
+			return err
+		}
+		if _, err := writer.Write([]byte(s + "\n")); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+// FormatFileAnnotation formats the FileAnnotation.
+func FormatFileAnnotation(fileAnnotation FileAnnotation, format Format) (string, error) {
+	switch format {
+	case FormatText:
+		return fileAnnotation.String(), nil
+	case FormatJSON:
+		data, err := fileAnnotation.MarshalJSON()
+		if err != nil {
+			return "", err
+		}
+		return string(data), nil
+	case FormatMSVS:
+		return fileAnnotation.MSVSString(), nil
+	default:
+		return "", fmt.Errorf("unknown FileAnnotation Format: %v", format)
+	}
+}
+
+type sortFileAnnotations []FileAnnotation
+
+func (a sortFileAnnotations) Len() int               { return len(a) }
+func (a sortFileAnnotations) Swap(i int, j int)      { a[i], a[j] = a[j], a[i] }
+func (a sortFileAnnotations) Less(i int, j int) bool { return fileAnnotationCompareTo(a[i], a[j]) < 0 }
+
+// fileAnnotationCompareTo returns a value less than 0 if a < b, a value
+// greater than 0 if a > b, and 0 if a == b.
+func fileAnnotationCompareTo(a FileAnnotation, b FileAnnotation) int {
+	if a == nil && b == nil {
+		return 0
+	}
+	if a == nil && b != nil {
+		return -1
+	}
+	if a != nil && b == nil {
+		return 1
+	}
+	aFileInfo := a.FileInfo()
+	bFileInfo := b.FileInfo()
+	if aFileInfo == nil && bFileInfo != nil {
+		return -1
+	}
+	if aFileInfo != nil && bFileInfo == nil {
+		return 1
+	}
+	if aFileInfo != nil && bFileInfo != nil {
+		if aFileInfo.ExternalPath() < bFileInfo.ExternalPath() {
+			return -1
+		}
+		if aFileInfo.ExternalPath() > bFileInfo.ExternalPath() {
+			return 1
+		}
+	}
+	if a.StartLine() < b.StartLine() {
+		return -1
+	}
+	if a.StartLine() > b.StartLine() {
+		return 1
+	}
+	if a.StartColumn() < b.StartColumn() {
+		return -1
+	}
+	if a.StartColumn() > b.StartColumn() {
+		return 1
+	}
+	if a.Type() < b.Type() {
+		return -1
+	}
+	if a.Type() > b.Type() {
+		return 1
+	}
+	if a.Message() < b.Message() {
+		return -1
+	}
+	if a.Message() > b.Message() {
+		return 1
+	}
+	if a.EndLine() < b.EndLine() {
+		return -1
+	}
+	if a.EndLine() > b.EndLine() {
+		return 1
+	}
+	if a.EndColumn() < b.EndColumn() {
+		return -1
+	}
+	if a.EndColumn() > b.EndColumn() {
+		return 1
+	}
+	return 0
+}

vendor/github.com/bufbuild/buf/internal/buf/bufanalysis/file_annotation.go

@@ -0,0 +1,188 @@
+// Copyright 2020-2021 Buf Technologies, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package bufanalysis
+
+import (
+	"bytes"
+	"encoding/json"
+	"strconv"
+)
+
+type fileAnnotation struct {
+	fileInfo    FileInfo
+	startLine   int
+	startColumn int
+	endLine     int
+	endColumn   int
+	typeString  string
+	message     string
+}
+
+func newFileAnnotation(
+	fileInfo FileInfo,
+	startLine int,
+	startColumn int,
+	endLine int,
+	endColumn int,
+	typeString string,
+	message string,
+) *fileAnnotation {
+	return &fileAnnotation{
+		fileInfo:    fileInfo,
+		startLine:   startLine,
+		startColumn: startColumn,
+		endLine:     endLine,
+		endColumn:   endColumn,
+		typeString:  typeString,
+		message:     message,
+	}
+}
+
+func (f *fileAnnotation) FileInfo() FileInfo {
+	return f.fileInfo
+}
+
+func (f *fileAnnotation) StartLine() int {
+	return f.startLine
+}
+
+func (f *fileAnnotation) StartColumn() int {
+	return f.startColumn
+}
+
+func (f *fileAnnotation) EndLine() int {
+	return f.endLine
+}
+
+func (f *fileAnnotation) EndColumn() int {
+	return f.endColumn
+}
+
+func (f *fileAnnotation) Type() string {
+	return f.typeString
+}
+
+func (f *fileAnnotation) Message() string {
+	return f.message
+}
+
+func (f *fileAnnotation) String() string {
+	if f == nil {
+		return ""
+	}
+	path := "<input>"
+	line := f.startLine
+	column := f.startColumn
+	message := f.message
+	if f.fileInfo != nil {
+		path = f.fileInfo.ExternalPath()
+	}
+	if line == 0 {
+		line = 1
+	}
+	if column == 0 {
+		column = 1
+	}
+	if message == "" {
+		message = f.typeString
+		// should never happen but just in case
+		if message == "" {
+			message = "FAILURE"
+		}
+	}
+	buffer := bytes.NewBuffer(nil)
+	_, _ = buffer.WriteString(path)
+	_, _ = buffer.WriteRune(':')
+	_, _ = buffer.WriteString(strconv.Itoa(line))
+	_, _ = buffer.WriteRune(':')
+	_, _ = buffer.WriteString(strconv.Itoa(column))
+	_, _ = buffer.WriteRune(':')
+	_, _ = buffer.WriteString(message)
+	return buffer.String()
+}
+
+func (f *fileAnnotation) MarshalJSON() ([]byte, error) {
+	if f == nil {
+		return nil, nil
+	}
+	return json.Marshal(f.toExternalFileAnnotation())
+}
+
+func (f *fileAnnotation) MSVSString() string {
+	if f == nil {
+		return ""
+	}
+	path := "<input>"
+	line := f.startLine
+	column := f.startColumn
+	message := f.message
+	if f.fileInfo != nil {
+		path = f.fileInfo.ExternalPath()
+	}
+	if line == 0 {
+		line = 1
+	}
+	typeString := f.typeString
+	if typeString == "" {
+		// should never happen but just in case
+		typeString = "FAILURE"
+	}
+	if message == "" {
+		message = f.typeString
+		// should never happen but just in case
+		if message == "" {
+			message = "FAILURE"
+		}
+	}
+	buffer := bytes.NewBuffer(nil)
+	_, _ = buffer.WriteString(path)
+	_, _ = buffer.WriteRune('(')
+	_, _ = buffer.WriteString(strconv.Itoa(line))
+	if column != 0 {
+		_, _ = buffer.WriteRune(',')
+		_, _ = buffer.WriteString(strconv.Itoa(column))
+	}
+	_, _ = buffer.WriteString(") : error ")
+	_, _ = buffer.WriteString(typeString)
+	_, _ = buffer.WriteString(" : ")
+	_, _ = buffer.WriteString(message)
+	return buffer.String()
+}
+
+func (f *fileAnnotation) toExternalFileAnnotation() externalFileAnnotation {
+	path := ""
+	if f.fileInfo != nil {
+		path = f.fileInfo.ExternalPath()
+	}
+	return externalFileAnnotation{
+		Path:        path,
+		StartLine:   f.startLine,
+		StartColumn: f.startColumn,
+		EndLine:     f.endLine,
+		EndColumn:   f.endColumn,
+		Type:        f.typeString,
+		Message:     f.message,
+	}
+}
+
+type externalFileAnnotation struct {
+	Path        string `json:"path,omitempty" yaml:"path,omitempty"`
+	StartLine   int    `json:"start_line,omitempty" yaml:"start_line,omitempty"`
+	StartColumn int    `json:"start_column,omitempty" yaml:"start_column,omitempty"`
+	EndLine     int    `json:"end_line,omitempty" yaml:"end_line,omitempty"`
+	EndColumn   int    `json:"end_column,omitempty" yaml:"end_column,omitempty"`
+	Type        string `json:"type,omitempty" yaml:"type,omitempty"`
+	Message     string `json:"message,omitempty" yaml:"message,omitempty"`
+}

vendor/github.com/bufbuild/buf/internal/buf/bufapiclient/bufapiclient.go

@@ -0,0 +1,118 @@
+// Copyright 2020-2021 Buf Technologies, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Package bufapiclient switches between grpc and twirp on the client-side.
+package bufapiclient
+
+import (
+	"context"
+	"crypto/tls"
+
+	"github.com/bufbuild/buf/internal/gen/proto/apiclient/buf/alpha/registry/v1alpha1/registryv1alpha1apiclient"
+	"github.com/bufbuild/buf/internal/gen/proto/apiclientgrpc/buf/alpha/registry/v1alpha1/registryv1alpha1apiclientgrpc"
+	"github.com/bufbuild/buf/internal/gen/proto/apiclienttwirp/buf/alpha/registry/v1alpha1/registryv1alpha1apiclienttwirp"
+	"github.com/bufbuild/buf/internal/pkg/transport/grpc/grpcclient"
+	"github.com/bufbuild/buf/internal/pkg/transport/http/httpclient"
+	"go.uber.org/zap"
+)
+
+// NewRegistryProvider creates a new registryv1alpha1apiclient.Provider for either grpc or twirp.
+//
+// If tlsConfig is nil, no TLS is used.
+func NewRegistryProvider(
+	ctx context.Context,
+	logger *zap.Logger,
+	tlsConfig *tls.Config,
+	options ...RegistryProviderOption,
+) (registryv1alpha1apiclient.Provider, error) {
+	registryProviderOptions := &registryProviderOptions{}
+	for _, option := range options {
+		option(registryProviderOptions)
+	}
+	if registryProviderOptions.useGRPC {
+		clientConnProvider, err := NewGRPCClientConnProvider(ctx, logger, tlsConfig)
+		if err != nil {
+			return nil, err
+		}
+		return registryv1alpha1apiclientgrpc.NewProvider(
+			logger,
+			clientConnProvider,
+			registryv1alpha1apiclientgrpc.WithAddressMapper(registryProviderOptions.addressMapper),
+		), nil
+	}
+	httpClient, err := NewHTTPClient(tlsConfig)
+	if err != nil {
+		return nil, err
+	}
+	return registryv1alpha1apiclienttwirp.NewProvider(
+		logger,
+		httpClient,
+		registryv1alpha1apiclienttwirp.WithAddressMapper(registryProviderOptions.addressMapper),
+	), nil
+}
+
+// RegistryProviderOption is an option for a new registry Provider.
+type RegistryProviderOption func(*registryProviderOptions)
+
+type registryProviderOptions struct {
+	useGRPC       bool
+	addressMapper func(string) string
+}
+
+// RegistryProviderWithGRPC returns a new RegistryProviderOption that turns on gRPC.
+func RegistryProviderWithGRPC() RegistryProviderOption {
+	return func(options *registryProviderOptions) {
+		options.useGRPC = true
+	}
+}
+
+// RegistryProviderWithAddressMapper returns a new RegistryProviderOption that maps
+// addresses with the given function.
+func RegistryProviderWithAddressMapper(addressMapper func(string) string) RegistryProviderOption {
+	return func(options *registryProviderOptions) {
+		options.addressMapper = addressMapper
+	}
+}
+
+// NewGRPCClientConnProvider returns a new gRPC ClientConnProvider.
+//
+// TODO: move this to another location.
+func NewGRPCClientConnProvider(
+	ctx context.Context,
+	logger *zap.Logger,
+	tlsConfig *tls.Config,
+) (grpcclient.ClientConnProvider, error) {
+	return grpcclient.NewClientConnProvider(
+		ctx,
+		logger,
+		grpcclient.ClientConnProviderWithTLSConfig(
+			tlsConfig,
+		),
+		grpcclient.ClientConnProviderWithObservability(),
+	)
+}
+
+// NewHTTPClient returns a new HTTP Client.
+//
+// TODO: move this to another location.
+func NewHTTPClient(
+	tlsConfig *tls.Config,
+) (httpclient.Client, error) {
+	return httpclient.NewClient(
+		httpclient.ClientWithTLSConfig(
+			tlsConfig,
+		),
+		httpclient.ClientWithObservability(),
+	)
+}

vendor/github.com/bufbuild/buf/internal/buf/bufapimodule/bufapimodule.go

@@ -0,0 +1,39 @@
+// Copyright 2020-2021 Buf Technologies, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Package bufapimodule provides bufmodule types based on bufapi types.
+package bufapimodule
+
+import (
+	"github.com/bufbuild/buf/internal/buf/bufcore/bufmodule"
+	"github.com/bufbuild/buf/internal/gen/proto/apiclient/buf/alpha/registry/v1alpha1/registryv1alpha1apiclient"
+	"go.uber.org/zap"
+)
+
+// NewModuleReader returns a new ModuleReader backed by the download service.
+func NewModuleReader(
+	downloadServiceProvider registryv1alpha1apiclient.DownloadServiceProvider,
+) bufmodule.ModuleReader {
+	return newModuleReader(
+		downloadServiceProvider,
+	)
+}
+
+// NewModuleResolver returns a new ModuleResolver backed by the resolve service.
+func NewModuleResolver(
+	logger *zap.Logger,
+	resolveServiceProvider registryv1alpha1apiclient.ResolveServiceProvider,
+) bufmodule.ModuleResolver {
+	return newModuleResolver(logger, resolveServiceProvider)
+}

vendor/github.com/bufbuild/buf/internal/buf/bufapimodule/module_reader.go

@@ -0,0 +1,57 @@
+// Copyright 2020-2021 Buf Technologies, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package bufapimodule
+
+import (
+	"context"
+
+	"github.com/bufbuild/buf/internal/buf/bufcore/bufmodule"
+	"github.com/bufbuild/buf/internal/gen/proto/apiclient/buf/alpha/registry/v1alpha1/registryv1alpha1apiclient"
+	"github.com/bufbuild/buf/internal/pkg/rpc"
+	"github.com/bufbuild/buf/internal/pkg/storage"
+)
+
+type moduleReader struct {
+	downloadServiceProvider registryv1alpha1apiclient.DownloadServiceProvider
+}
+
+func newModuleReader(
+	downloadServiceProvider registryv1alpha1apiclient.DownloadServiceProvider,
+) *moduleReader {
+	return &moduleReader{
+		downloadServiceProvider: downloadServiceProvider,
+	}
+}
+
+func (m *moduleReader) GetModule(ctx context.Context, modulePin bufmodule.ModulePin) (bufmodule.Module, error) {
+	downloadService, err := m.downloadServiceProvider.NewDownloadService(ctx, modulePin.Remote())
+	if err != nil {
+		return nil, err
+	}
+	module, err := downloadService.Download(
+		ctx,
+		modulePin.Owner(),
+		modulePin.Repository(),
+		modulePin.Commit(),
+	)
+	if err != nil {
+		if rpc.GetErrorCode(err) == rpc.ErrorCodeNotFound {
+			// Required by ModuleReader interface spec
+			return nil, storage.NewErrNotExist(modulePin.String())
+		}
+		return nil, err
+	}
+	return bufmodule.NewModuleForProto(ctx, module)
+}

vendor/github.com/bufbuild/buf/internal/buf/bufapimodule/module_resolver.go

@@ -0,0 +1,81 @@
+// Copyright 2020-2021 Buf Technologies, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package bufapimodule
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/bufbuild/buf/internal/buf/bufcore/bufmodule"
+	"github.com/bufbuild/buf/internal/gen/proto/apiclient/buf/alpha/registry/v1alpha1/registryv1alpha1apiclient"
+	modulev1alpha1 "github.com/bufbuild/buf/internal/gen/proto/go/buf/alpha/module/v1alpha1"
+	"github.com/bufbuild/buf/internal/pkg/rpc"
+	"github.com/bufbuild/buf/internal/pkg/storage"
+	"go.uber.org/zap"
+)
+
+type moduleResolver struct {
+	logger                 *zap.Logger
+	resolveServiceProvider registryv1alpha1apiclient.ResolveServiceProvider
+}
+
+func newModuleResolver(logger *zap.Logger, resolveServiceProvider registryv1alpha1apiclient.ResolveServiceProvider) *moduleResolver {
+	return &moduleResolver{
+		logger:                 logger,
+		resolveServiceProvider: resolveServiceProvider,
+	}
+}
+
+func (m *moduleResolver) GetModulePin(ctx context.Context, moduleReference bufmodule.ModuleReference) (bufmodule.ModulePin, error) {
+	resolveService, err := m.resolveServiceProvider.NewResolveService(ctx, moduleReference.Remote())
+	if err != nil {
+		return nil, err
+	}
+	protoModulePins, err := resolveService.GetModulePins(
+		ctx,
+		[]*modulev1alpha1.ModuleReference{
+			bufmodule.NewProtoModuleReferenceForModuleReference(moduleReference),
+		},
+	)
+	if err != nil {
+		if rpc.GetErrorCode(err) == rpc.ErrorCodeNotFound {
+			// Required by ModuleResolver interface spec
+			return nil, storage.NewErrNotExist(moduleReference.String())
+		}
+		return nil, err
+	}
+	var targetModulePin bufmodule.ModulePin
+	moduleIdentity := getModuleIdentity(moduleReference)
+	for _, protoModulePin := range protoModulePins {
+		modulePin, err := bufmodule.NewModulePinForProto(protoModulePin)
+		if err != nil {
+			return nil, err
+		}
+		if getModuleIdentity(modulePin) == moduleIdentity {
+			if targetModulePin != nil {
+				return nil, fmt.Errorf("resolved multiple module pins for %q", moduleIdentity)
+			}
+			targetModulePin = modulePin
+		}
+	}
+	if targetModulePin == nil {
+		return nil, fmt.Errorf("resolved module pins did not contain module %q", moduleIdentity)
+	}
+	return targetModulePin, nil
+}
+
+func getModuleIdentity(moduleIdentity bufmodule.ModuleIdentity) string {
+	return moduleIdentity.Remote() + "/" + moduleIdentity.Owner() + "/" + moduleIdentity.Repository()
+}

vendor/github.com/bufbuild/buf/internal/buf/bufapp/bufapp.go

@@ -0,0 +1,72 @@
+// Copyright 2020-2021 Buf Technologies, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package bufapp
+
+import (
+	"crypto/tls"
+	"fmt"
+
+	"github.com/bufbuild/buf/internal/pkg/app/appname"
+	"github.com/bufbuild/buf/internal/pkg/cert/certclient"
+	"github.com/bufbuild/buf/internal/pkg/netconfig"
+)
+
+const currentVersion = "v1"
+
+// ExternalConfig is an external config.
+type ExternalConfig struct {
+	// if editing ExternalConfig, make sure to update externalConfigIsEmpty at the bottom of this file!
+
+	Version string                             `json:"version,omitempty" yaml:"version,omitempty"`
+	TLS     certclient.ExternalClientTLSConfig `json:"tls,omitempty" yaml:"tls,omitempty"`
+	Remotes []netconfig.ExternalRemote         `json:"remotes,omitempty" yaml:"remotes,omitempty"`
+}
+
+// IsEmpty returns true if the externalConfig is empty.
+func (e ExternalConfig) IsEmpty() bool {
+	// you can't just do externalConfig == ExternalConfig{} as Golang does not allow
+	// this if you have a slice field, i.e. Remotes
+	return e.Version == "" &&
+		e.TLS.IsEmpty() &&
+		len(e.Remotes) == 0
+}
+
+// Config is a config.
+type Config struct {
+	TLS            *tls.Config
+	RemoteProvider netconfig.RemoteProvider
+}
+
+// NewConfig returns a new Config for the ExternalConfig.
+func NewConfig(
+	container appname.Container,
+	externalConfig ExternalConfig,
+) (*Config, error) {
+	if externalConfig.Version != currentVersion && !externalConfig.IsEmpty() {
+		return nil, fmt.Errorf("buf configuration at %q must declare 'version: %s'", container.ConfigDirPath(), currentVersion)
+	}
+	tlsConfig, err := certclient.NewClientTLSConfig(container, externalConfig.TLS)
+	if err != nil {
+		return nil, err
+	}
+	remoteProvider, err := netconfig.NewRemoteProvider(externalConfig.Remotes)
+	if err != nil {
+		return nil, fmt.Errorf("failed to parse remotes configuration at %q: %v", container.ConfigDirPath(), err)
+	}
+	return &Config{
+		TLS:            tlsConfig,
+		RemoteProvider: remoteProvider,
+	}, nil
+}

vendor/github.com/bufbuild/buf/internal/buf/bufcheck/bufbreaking/bufbreaking.go

@@ -0,0 +1,148 @@
+// Copyright 2020-2021 Buf Technologies, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Package bufbreaking contains the breaking change detection functionality.
+//
+// The primary entry point to this package is the Handler.
+package bufbreaking
+
+import (
+	"context"
+
+	"github.com/bufbuild/buf/internal/buf/bufanalysis"
+	"github.com/bufbuild/buf/internal/buf/bufcheck"
+	"github.com/bufbuild/buf/internal/buf/bufcheck/bufbreaking/internal/bufbreakingv1beta1"
+	"github.com/bufbuild/buf/internal/buf/bufcheck/internal"
+	"github.com/bufbuild/buf/internal/buf/bufcore/bufimage"
+	"go.uber.org/zap"
+)
+
+// Handler handles the main breaking functionality.
+type Handler interface {
+	// Check runs the breaking checks.
+	//
+	// The image should have source code info for this to work properly. The previousImage
+	// does not need to have source code info.
+	//
+	// Images should be filtered with regards to imports before passing to this function.
+	Check(
+		ctx context.Context,
+		config *Config,
+		previousImage bufimage.Image,
+		image bufimage.Image,
+	) ([]bufanalysis.FileAnnotation, error)
+}
+
+// NewHandler returns a new Handler.
+func NewHandler(logger *zap.Logger) Handler {
+	return newHandler(logger)
+}
+
+// Rule is a rule.
+type Rule interface {
+	bufcheck.Rule
+
+	internalBreaking() *internal.Rule
+}
+
+// Config is the check config.
+type Config struct {
+	// Rules are the rules to run.
+	//
+	// Rules will be sorted by first categories, then id when Configs are
+	// created from this package, i.e. created wth ConfigBuilder.NewConfig.
+	Rules                  []Rule
+	IgnoreIDToRootPaths    map[string]map[string]struct{}
+	IgnoreRootPaths        map[string]struct{}
+	IgnoreUnstablePackages bool
+}
+
+// GetRules returns the rules.
+//
+// Should only be used for printing.
+func (c *Config) GetRules() []bufcheck.Rule {
+	return rulesToBufcheckRules(c.Rules)
+}
+
+// NewConfigV1Beta1 returns a new Config.
+func NewConfigV1Beta1(externalConfig ExternalConfigV1Beta1) (*Config, error) {
+	internalConfig, err := internal.ConfigBuilder{
+		Use:                           externalConfig.Use,
+		Except:                        externalConfig.Except,
+		IgnoreRootPaths:               externalConfig.Ignore,
+		IgnoreIDOrCategoryToRootPaths: externalConfig.IgnoreOnly,
+		IgnoreUnstablePackages:        externalConfig.IgnoreUnstablePackages,
+	}.NewConfig(
+		bufbreakingv1beta1.VersionSpec,
+	)
+	if err != nil {
+		return nil, err
+	}
+	return internalConfigToConfig(internalConfig), nil
+}
+
+// GetAllRulesV1Beta1 gets all known rules.
+//
+// Should only be used for printing.
+func GetAllRulesV1Beta1() ([]bufcheck.Rule, error) {
+	config, err := NewConfigV1Beta1(
+		ExternalConfigV1Beta1{
+			Use: bufbreakingv1beta1.VersionSpec.AllCategories,
+		},
+	)
+	if err != nil {
+		return nil, err
+	}
+	return rulesToBufcheckRules(config.Rules), nil
+}
+
+// ExternalConfigV1Beta1 is an external config.
+type ExternalConfigV1Beta1 struct {
+	Use    []string `json:"use,omitempty" yaml:"use,omitempty"`
+	Except []string `json:"except,omitempty" yaml:"except,omitempty"`
+	// IgnoreRootPaths
+	Ignore []string `json:"ignore,omitempty" yaml:"ignore,omitempty"`
+	// IgnoreIDOrCategoryToRootPaths
+	IgnoreOnly             map[string][]string `json:"ignore_only,omitempty" yaml:"ignore_only,omitempty"`
+	IgnoreUnstablePackages bool                `json:"ignore_unstable_packages,omitempty" yaml:"ignore_unstable_packages,omitempty"`
+}
+
+func internalConfigToConfig(internalConfig *internal.Config) *Config {
+	return &Config{
+		Rules:                  internalRulesToRules(internalConfig.Rules),
+		IgnoreIDToRootPaths:    internalConfig.IgnoreIDToRootPaths,
+		IgnoreRootPaths:        internalConfig.IgnoreRootPaths,
+		IgnoreUnstablePackages: internalConfig.IgnoreUnstablePackages,
+	}
+}
+
+func configToInternalConfig(config *Config) *internal.Config {
+	return &internal.Config{
+		Rules:                  rulesToInternalRules(config.Rules),
+		IgnoreIDToRootPaths:    config.IgnoreIDToRootPaths,
+		IgnoreRootPaths:        config.IgnoreRootPaths,
+		IgnoreUnstablePackages: config.IgnoreUnstablePackages,
+	}
+}
+
+func rulesToBufcheckRules(rules []Rule) []bufcheck.Rule {
+	if rules == nil {
+		return nil
+	}
+	s := make([]bufcheck.Rule, len(rules))
+	for i, e := range rules {
+		s[i] = e
+	}
+	return s
+}

vendor/github.com/bufbuild/buf/internal/buf/bufcheck/bufbreaking/handler.go

@@ -0,0 +1,59 @@
+// Copyright 2020-2021 Buf Technologies, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package bufbreaking
+
+import (
+	"context"
+
+	"github.com/bufbuild/buf/internal/buf/bufanalysis"
+	"github.com/bufbuild/buf/internal/buf/bufcheck/internal"
+	"github.com/bufbuild/buf/internal/buf/bufcore/bufimage"
+	"github.com/bufbuild/buf/internal/buf/bufcore/bufimage/bufimageutil"
+	"github.com/bufbuild/buf/internal/pkg/protosource"
+	"go.uber.org/zap"
+)
+
+type handler struct {
+	logger *zap.Logger
+	runner *internal.Runner
+}
+
+func newHandler(
+	logger *zap.Logger,
+) *handler {
+	return &handler{
+		logger: logger,
+		// comment ignores are not allowed for breaking changes
+		// so do not set the ignore prefix per the RunnerWithIgnorePrefix comments
+		runner: internal.NewRunner(logger),
+	}
+}
+
+func (h *handler) Check(
+	ctx context.Context,
+	config *Config,
+	previousImage bufimage.Image,
+	image bufimage.Image,
+) ([]bufanalysis.FileAnnotation, error) {
+	previousFiles, err := protosource.NewFilesUnstable(ctx, bufimageutil.NewInputFiles(previousImage.Files())...)
+	if err != nil {
+		return nil, err
+	}
+	files, err := protosource.NewFilesUnstable(ctx, bufimageutil.NewInputFiles(image.Files())...)
+	if err != nil {
+		return nil, err
+	}
+	return h.runner.Check(ctx, configToInternalConfig(config), previousFiles, files)
+}

vendor/github.com/bufbuild/buf/internal/buf/bufcheck/bufbreaking/internal/bufbreakingbuild/bufbreakingbuild.go

@@ -0,0 +1,353 @@
+// Copyright 2020-2021 Buf Technologies, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Package bufbreakingbuild contains the RuleBuilders used by bufbreakingv*.
+//
+// In the future, we can have multiple versions of a RuleBuilder here, and then
+// include them separately in the bufbreakingv* packages. For example, FieldSameTypeRuleBuilder
+// could be split into FieldSameTypeRuleBuilder/FieldSameTypeRuleBuilderV2 which handle
+// primitives differently, and we could use the former in v1beta1, and the latter in v1.
+package bufbreakingbuild
+
+import (
+	"github.com/bufbuild/buf/internal/buf/bufcheck/bufbreaking/internal/bufbreakingcheck"
+	"github.com/bufbuild/buf/internal/buf/bufcheck/internal"
+)
+
+var (
+	// EnumNoDeleteRuleBuilder is a rule builder.
+	EnumNoDeleteRuleBuilder = internal.NewNopRuleBuilder(
+		"ENUM_NO_DELETE",
+		"enums are not deleted from a given file",
+		bufbreakingcheck.CheckEnumNoDelete,
+	)
+	// EnumValueNoDeleteRuleBuilder is a rule builder.
+	EnumValueNoDeleteRuleBuilder = internal.NewNopRuleBuilder(
+		"ENUM_VALUE_NO_DELETE",
+		"enum values are not deleted from a given enum",
+		bufbreakingcheck.CheckEnumValueNoDelete,
+	)
+	// EnumValueNoDeleteUnlessNameReservedRuleBuilder is a rule builder.
+	EnumValueNoDeleteUnlessNameReservedRuleBuilder = internal.NewNopRuleBuilder(
+		"ENUM_VALUE_NO_DELETE_UNLESS_NAME_RESERVED",
+		"enum values are not deleted from a given enum unless the name is reserved",
+		bufbreakingcheck.CheckEnumValueNoDeleteUnlessNameReserved,
+	)
+	// EnumValueNoDeleteUnlessNumberReservedRuleBuilder is a rule builder.
+	EnumValueNoDeleteUnlessNumberReservedRuleBuilder = internal.NewNopRuleBuilder(
+		"ENUM_VALUE_NO_DELETE_UNLESS_NUMBER_RESERVED",
+		"enum values are not deleted from a given enum unless the number is reserved",
+		bufbreakingcheck.CheckEnumValueNoDeleteUnlessNumberReserved,
+	)
+	// EnumValueSameNameRuleBuilder is a rule builder.
+	EnumValueSameNameRuleBuilder = internal.NewNopRuleBuilder(
+		"ENUM_VALUE_SAME_NAME",
+		"enum values have the same name",
+		bufbreakingcheck.CheckEnumValueSameName,
+	)
+	// ExtensionMessageNoDeleteRuleBuilder is a rule builder.
+	ExtensionMessageNoDeleteRuleBuilder = internal.NewNopRuleBuilder(
+		"EXTENSION_MESSAGE_NO_DELETE",
+		"extension ranges are not deleted from a given message",
+		bufbreakingcheck.CheckExtensionMessageNoDelete,
+	)
+	// FieldNoDeleteRuleBuilder is a rule builder.
+	FieldNoDeleteRuleBuilder = internal.NewNopRuleBuilder(
+		"FIELD_NO_DELETE",
+		"fields are not deleted from a given message",
+		bufbreakingcheck.CheckFieldNoDelete,
+	)
+	// FieldNoDeleteUnlessNameReservedRuleBuilder is a rule builder.
+	FieldNoDeleteUnlessNameReservedRuleBuilder = internal.NewNopRuleBuilder(
+		"FIELD_NO_DELETE_UNLESS_NAME_RESERVED",
+		"fields are not deleted from a given message unless the name is reserved",
+		bufbreakingcheck.CheckFieldNoDeleteUnlessNameReserved,
+	)
+	// FieldNoDeleteUnlessNumberReservedRuleBuilder is a rule builder.
+	FieldNoDeleteUnlessNumberReservedRuleBuilder = internal.NewNopRuleBuilder(
+		"FIELD_NO_DELETE_UNLESS_NUMBER_RESERVED",
+		"fields are not deleted from a given message unless the number is reserved",
+		bufbreakingcheck.CheckFieldNoDeleteUnlessNumberReserved,
+	)
+	// FieldSameCTypeRuleBuilder is a rule builder.
+	FieldSameCTypeRuleBuilder = internal.NewNopRuleBuilder(
+		"FIELD_SAME_CTYPE",
+		"fields have the same value for the ctype option",
+		bufbreakingcheck.CheckFieldSameCType,
+	)
+	// FieldSameJSONNameRuleBuilder is a rule builder.
+	FieldSameJSONNameRuleBuilder = internal.NewNopRuleBuilder(
+		"FIELD_SAME_JSON_NAME",
+		"fields have the same value for the json_name option",
+		bufbreakingcheck.CheckFieldSameJSONName,
+	)
+	// FieldSameJSTypeRuleBuilder is a rule builder.
+	FieldSameJSTypeRuleBuilder = internal.NewNopRuleBuilder(
+		"FIELD_SAME_JSTYPE",
+		"fields have the same value for the jstype option",
+		bufbreakingcheck.CheckFieldSameJSType,
+	)
+	// FieldSameLabelRuleBuilder is a rule builder.
+	FieldSameLabelRuleBuilder = internal.NewNopRuleBuilder(
+		"FIELD_SAME_LABEL",
+		"fields have the same labels in a given message",
+		bufbreakingcheck.CheckFieldSameLabel,
+	)
+	// FieldSameNameRuleBuilder is a rule builder.
+	FieldSameNameRuleBuilder = internal.NewNopRuleBuilder(
+		"FIELD_SAME_NAME",
+		"fields have the same names in a given message",
+		bufbreakingcheck.CheckFieldSameName,
+	)
+	// FieldSameOneofRuleBuilder is a rule builder.
+	FieldSameOneofRuleBuilder = internal.NewNopRuleBuilder(
+		"FIELD_SAME_ONEOF",
+		"fields have the same oneofs in a given message",
+		bufbreakingcheck.CheckFieldSameOneof,
+	)
+	// FieldSameTypeRuleBuilder is a rule builder.
+	FieldSameTypeRuleBuilder = internal.NewNopRuleBuilder(
+		"FIELD_SAME_TYPE",
+		"fields have the same types in a given message",
+		bufbreakingcheck.CheckFieldSameType,
+	)
+	// FileNoDeleteRuleBuilder is a rule builder.
+	FileNoDeleteRuleBuilder = internal.NewNopRuleBuilder(
+		"FILE_NO_DELETE",
+		"files are not deleted",
+		bufbreakingcheck.CheckFileNoDelete,
+	)
+	// FileSameCsharpNamespaceRuleBuilder is a rule builder.
+	FileSameCsharpNamespaceRuleBuilder = internal.NewNopRuleBuilder(
+		"FILE_SAME_CSHARP_NAMESPACE",
+		"files have the same value for the csharp_namespace option",
+		bufbreakingcheck.CheckFileSameCsharpNamespace,
+	)
+	// FileSameGoPackageRuleBuilder is a rule builder.
+	FileSameGoPackageRuleBuilder = internal.NewNopRuleBuilder(
+		"FILE_SAME_GO_PACKAGE",
+		"files have the same value for the go_package option",
+		bufbreakingcheck.CheckFileSameGoPackage,
+	)
+	// FileSameJavaMultipleFilesRuleBuilder is a rule builder.
+	FileSameJavaMultipleFilesRuleBuilder = internal.NewNopRuleBuilder(
+		"FILE_SAME_JAVA_MULTIPLE_FILES",
+		"files have the same value for the java_multiple_files option",
+		bufbreakingcheck.CheckFileSameJavaMultipleFiles,
+	)
+	// FileSameJavaOuterClassnameRuleBuilder is a rule builder.
+	FileSameJavaOuterClassnameRuleBuilder = internal.NewNopRuleBuilder(
+		"FILE_SAME_JAVA_OUTER_CLASSNAME",
+		"files have the same value for the java_outer_classname option",
+		bufbreakingcheck.CheckFileSameJavaOuterClassname,
+	)
+	// FileSameJavaPackageRuleBuilder is a rule builder.
+	FileSameJavaPackageRuleBuilder = internal.NewNopRuleBuilder(
+		"FILE_SAME_JAVA_PACKAGE",
+		"files have the same value for the java_package option",
+		bufbreakingcheck.CheckFileSameJavaPackage,
+	)
+	// FileSameJavaStringCheckUtf8RuleBuilder is a rule builder.
+	FileSameJavaStringCheckUtf8RuleBuilder = internal.NewNopRuleBuilder(
+		"FILE_SAME_JAVA_STRING_CHECK_UTF8",
+		"files have the same value for the java_string_check_utf8 option",
+		bufbreakingcheck.CheckFileSameJavaStringCheckUtf8,
+	)
+	// FileSameObjcClassPrefixRuleBuilder is a rule builder.
+	FileSameObjcClassPrefixRuleBuilder = internal.NewNopRuleBuilder(
+		"FILE_SAME_OBJC_CLASS_PREFIX",
+		"files have the same value for the objc_class_prefix option",
+		bufbreakingcheck.CheckFileSameObjcClassPrefix,
+	)
+	// FileSamePackageRuleBuilder is a rule builder.
+	FileSamePackageRuleBuilder = internal.NewNopRuleBuilder(
+		"FILE_SAME_PACKAGE",
+		"files have the same package",
+		bufbreakingcheck.CheckFileSamePackage,
+	)
+	// FileSamePhpClassPrefixRuleBuilder is a rule builder.
+	FileSamePhpClassPrefixRuleBuilder = internal.NewNopRuleBuilder(
+		"FILE_SAME_PHP_CLASS_PREFIX",
+		"files have the same value for the php_class_prefix option",
+		bufbreakingcheck.CheckFileSamePhpClassPrefix,
+	)
+	// FileSamePhpMetadataNamespaceRuleBuilder is a rule builder.
+	FileSamePhpMetadataNamespaceRuleBuilder = internal.NewNopRuleBuilder(
+		"FILE_SAME_PHP_METADATA_NAMESPACE",
+		"files have the same value for the php_metadata_namespace option",
+		bufbreakingcheck.CheckFileSamePhpMetadataNamespace,
+	)
+	// FileSamePhpNamespaceRuleBuilder is a rule builder.
+	FileSamePhpNamespaceRuleBuilder = internal.NewNopRuleBuilder(
+		"FILE_SAME_PHP_NAMESPACE",
+		"files have the same value for the php_namespace option",
+		bufbreakingcheck.CheckFileSamePhpNamespace,
+	)
+	// FileSameRubyPackageRuleBuilder is a rule builder.
+	FileSameRubyPackageRuleBuilder = internal.NewNopRuleBuilder(
+		"FILE_SAME_RUBY_PACKAGE",
+		"files have the same value for the ruby_package option",
+		bufbreakingcheck.CheckFileSameRubyPackage,
+	)
+	// FileSameSwiftPrefixRuleBuilder is a rule builder.
+	FileSameSwiftPrefixRuleBuilder = internal.NewNopRuleBuilder(
+		"FILE_SAME_SWIFT_PREFIX",
+		"files have the same value for the swift_prefix option",
+		bufbreakingcheck.CheckFileSameSwiftPrefix,
+	)
+	// FileSameOptimizeForRuleBuilder is a rule builder.
+	FileSameOptimizeForRuleBuilder = internal.NewNopRuleBuilder(
+		"FILE_SAME_OPTIMIZE_FOR",
+		"files have the same value for the optimize_for option",
+		bufbreakingcheck.CheckFileSameOptimizeFor,
+	)
+	// FileSameCcGenericServicesRuleBuilder is a rule builder.
+	FileSameCcGenericServicesRuleBuilder = internal.NewNopRuleBuilder(
+		"FILE_SAME_CC_GENERIC_SERVICES",
+		"files have the same value for the cc_generic_services option",
+		bufbreakingcheck.CheckFileSameCcGenericServices,
+	)
+	// FileSameJavaGenericServicesRuleBuilder is a rule builder.
+	FileSameJavaGenericServicesRuleBuilder = internal.NewNopRuleBuilder(
+		"FILE_SAME_JAVA_GENERIC_SERVICES",
+		"files have the same value for the java_generic_services option",
+		bufbreakingcheck.CheckFileSameJavaGenericServices,
+	)
+	// FileSamePyGenericServicesRuleBuilder is a rule builder.
+	FileSamePyGenericServicesRuleBuilder = internal.NewNopRuleBuilder(
+		"FILE_SAME_PY_GENERIC_SERVICES",
+		"files have the same value for the py_generic_services option",
+		bufbreakingcheck.CheckFileSamePyGenericServices,
+	)
+	// FileSamePhpGenericServicesRuleBuilder is a rule builder.
+	FileSamePhpGenericServicesRuleBuilder = internal.NewNopRuleBuilder(
+		"FILE_SAME_PHP_GENERIC_SERVICES",
+		"files have the same value for the php_generic_services option",
+		bufbreakingcheck.CheckFileSamePhpGenericServices,
+	)
+	// FileSameCcEnableArenasRuleBuilder is a rule builder.
+	FileSameCcEnableArenasRuleBuilder = internal.NewNopRuleBuilder(
+		"FILE_SAME_CC_ENABLE_ARENAS",
+		"files have the same value for the cc_enable_arenas option",
+		bufbreakingcheck.CheckFileSameCcEnableArenas,
+	)
+	// FileSameSyntaxRuleBuilder is a rule builder.
+	FileSameSyntaxRuleBuilder = internal.NewNopRuleBuilder(
+		"FILE_SAME_SYNTAX",
+		"files have the same syntax",
+		bufbreakingcheck.CheckFileSameSyntax,
+	)
+	// MessageNoDeleteRuleBuilder is a rule builder.
+	MessageNoDeleteRuleBuilder = internal.NewNopRuleBuilder(
+		"MESSAGE_NO_DELETE",
+		"messages are not deleted from a given file",
+		bufbreakingcheck.CheckMessageNoDelete,
+	)
+	// MessageNoRemoveStandardDescriptorAccessorRuleBuilder is a rule builder.
+	MessageNoRemoveStandardDescriptorAccessorRuleBuilder = internal.NewNopRuleBuilder(
+		"MESSAGE_NO_REMOVE_STANDARD_DESCRIPTOR_ACCESSOR",
+		"messages do not change the no_standard_descriptor_accessor option from false or unset to true",
+		bufbreakingcheck.CheckMessageNoRemoveStandardDescriptorAccessor,
+	)
+	// MessageSameMessageSetWireFormatRuleBuilder is a rule builder.
+	MessageSameMessageSetWireFormatRuleBuilder = internal.NewNopRuleBuilder(
+		"MESSAGE_SAME_MESSAGE_SET_WIRE_FORMAT",
+		"messages have the same value for the message_set_wire_format option",
+		bufbreakingcheck.CheckMessageSameMessageSetWireFormat,
+	)
+	// OneofNoDeleteRuleBuilder is a rule builder.
+	OneofNoDeleteRuleBuilder = internal.NewNopRuleBuilder(
+		"ONEOF_NO_DELETE",
+		"oneofs are not deleted from a given message",
+		bufbreakingcheck.CheckOneofNoDelete,
+	)
+	// PackageEnumNoDeleteRuleBuilder is a rule builder.
+	PackageEnumNoDeleteRuleBuilder = internal.NewNopRuleBuilder(
+		"PACKAGE_ENUM_NO_DELETE",
+		"enums are not deleted from a given package",
+		bufbreakingcheck.CheckPackageEnumNoDelete,
+	)
+	// PackageMessageNoDeleteRuleBuilder is a rule builder.
+	PackageMessageNoDeleteRuleBuilder = internal.NewNopRuleBuilder(
+		"PACKAGE_MESSAGE_NO_DELETE",
+		"messages are not deleted from a given package",
+		bufbreakingcheck.CheckPackageMessageNoDelete,
+	)
+	// PackageNoDeleteRuleBuilder is a rule builder.
+	PackageNoDeleteRuleBuilder = internal.NewNopRuleBuilder(
+		"PACKAGE_NO_DELETE",
+		"packages are not deleted",
+		bufbreakingcheck.CheckPackageNoDelete,
+	)
+	// PackageServiceNoDeleteRuleBuilder is a rule builder.
+	PackageServiceNoDeleteRuleBuilder = internal.NewNopRuleBuilder(
+		"PACKAGE_SERVICE_NO_DELETE",
+		"services are not deleted from a given package",
+		bufbreakingcheck.CheckPackageServiceNoDelete,
+	)
+	// ReservedEnumNoDeleteRuleBuilder is a rule builder.
+	ReservedEnumNoDeleteRuleBuilder = internal.NewNopRuleBuilder(
+		"RESERVED_ENUM_NO_DELETE",
+		"reserved ranges and names are not deleted from a given enum",
+		bufbreakingcheck.CheckReservedEnumNoDelete,
+	)
+	// ReservedMessageNoDeleteRuleBuilder is a rule builder.
+	ReservedMessageNoDeleteRuleBuilder = internal.NewNopRuleBuilder(
+		"RESERVED_MESSAGE_NO_DELETE",
+		"reserved ranges and names are not deleted from a given message",
+		bufbreakingcheck.CheckReservedMessageNoDelete,
+	)
+	// RPCNoDeleteRuleBuilder is a rule builder.
+	RPCNoDeleteRuleBuilder = internal.NewNopRuleBuilder(
+		"RPC_NO_DELETE",
+		"rpcs are not deleted from a given service",
+		bufbreakingcheck.CheckRPCNoDelete,
+	)
+	// RPCSameClientStreamingRuleBuilder is a rule builder.
+	RPCSameClientStreamingRuleBuilder = internal.NewNopRuleBuilder(
+		"RPC_SAME_CLIENT_STREAMING",
+		"rpcs have the same client streaming value",
+		bufbreakingcheck.CheckRPCSameClientStreaming,
+	)
+	// RPCSameIdempotencyLevelRuleBuilder is a rule builder.
+	RPCSameIdempotencyLevelRuleBuilder = internal.NewNopRuleBuilder(
+		"RPC_SAME_IDEMPOTENCY_LEVEL",
+		"rpcs have the same value for the idempotency_level option",
+		bufbreakingcheck.CheckRPCSameIdempotencyLevel,
+	)
+	// RPCSameRequestTypeRuleBuilder is a rule builder.
+	RPCSameRequestTypeRuleBuilder = internal.NewNopRuleBuilder(
+		"RPC_SAME_REQUEST_TYPE",
+		"rpcs are have the same request type",
+		bufbreakingcheck.CheckRPCSameRequestType,
+	)
+	// RPCSameResponseTypeRuleBuilder is a rule builder.
+	RPCSameResponseTypeRuleBuilder = internal.NewNopRuleBuilder(
+		"RPC_SAME_RESPONSE_TYPE",
+		"rpcs are have the same response type",
+		bufbreakingcheck.CheckRPCSameResponseType,
+	)
+	// RPCSameServerStreamingRuleBuilder is a rule builder.
+	RPCSameServerStreamingRuleBuilder = internal.NewNopRuleBuilder(
+		"RPC_SAME_SERVER_STREAMING",
+		"rpcs have the same server streaming value",
+		bufbreakingcheck.CheckRPCSameServerStreaming,
+	)
+	// ServiceNoDeleteRuleBuilder is a rule builder.
+	ServiceNoDeleteRuleBuilder = internal.NewNopRuleBuilder(
+		"SERVICE_NO_DELETE",
+		"services are not deleted from a given file",
+		bufbreakingcheck.CheckServiceNoDelete,
+	)
+)

vendor/github.com/bufbuild/buf/internal/buf/bufcheck/bufbreaking/internal/bufbreakingcheck/bufbreakingcheck.go

@@ -0,0 +1,888 @@
+// Copyright 2020-2021 Buf Technologies, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Package bufbreakingcheck impelements the check functions.
+//
+// These are used by bufbreakingbuild to create RuleBuilders.
+package bufbreakingcheck
+
+import (
+	"errors"
+	"fmt"
+	"strconv"
+	"strings"
+
+	"github.com/bufbuild/buf/internal/pkg/protosource"
+	"github.com/bufbuild/buf/internal/pkg/stringutil"
+)
+
+// CheckEnumNoDelete is a check function.
+var CheckEnumNoDelete = newFilePairCheckFunc(checkEnumNoDelete)
+
+func checkEnumNoDelete(add addFunc, previousFile protosource.File, file protosource.File) error {
+	previousNestedNameToEnum, err := protosource.NestedNameToEnum(previousFile)
+	if err != nil {
+		return err
+	}
+	nestedNameToEnum, err := protosource.NestedNameToEnum(file)
+	if err != nil {
+		return err
+	}
+	for previousNestedName := range previousNestedNameToEnum {
+		if _, ok := nestedNameToEnum[previousNestedName]; !ok {
+			// TODO: search for enum in other files and return that the enum was moved?
+			descriptor, location, err := getDescriptorAndLocationForDeletedEnum(file, previousNestedName)
+			if err != nil {
+				return err
+			}
+			add(descriptor, location, `Previously present enum %q was deleted from file.`, previousNestedName)
+		}
+	}
+	return nil
+}
+
+// CheckEnumValueNoDelete is a check function.
+var CheckEnumValueNoDelete = newEnumPairCheckFunc(checkEnumValueNoDelete)
+
+func checkEnumValueNoDelete(add addFunc, previousEnum protosource.Enum, enum protosource.Enum) error {
+	return checkEnumValueNoDeleteWithRules(add, previousEnum, enum, false, false)
+}
+
+// CheckEnumValueNoDeleteUnlessNumberReserved is a check function.
+var CheckEnumValueNoDeleteUnlessNumberReserved = newEnumPairCheckFunc(checkEnumValueNoDeleteUnlessNumberReserved)
+
+func checkEnumValueNoDeleteUnlessNumberReserved(add addFunc, previousEnum protosource.Enum, enum protosource.Enum) error {
+	return checkEnumValueNoDeleteWithRules(add, previousEnum, enum, true, false)
+}
+
+// CheckEnumValueNoDeleteUnlessNameReserved is a check function.
+var CheckEnumValueNoDeleteUnlessNameReserved = newEnumPairCheckFunc(checkEnumValueNoDeleteUnlessNameReserved)
+
+func checkEnumValueNoDeleteUnlessNameReserved(add addFunc, previousEnum protosource.Enum, enum protosource.Enum) error {
+	return checkEnumValueNoDeleteWithRules(add, previousEnum, enum, false, true)
+}
+
+func checkEnumValueNoDeleteWithRules(add addFunc, previousEnum protosource.Enum, enum protosource.Enum, allowIfNumberReserved bool, allowIfNameReserved bool) error {
+	previousNumberToNameToEnumValue, err := protosource.NumberToNameToEnumValue(previousEnum)
+	if err != nil {
+		return err
+	}
+	numberToNameToEnumValue, err := protosource.NumberToNameToEnumValue(enum)
+	if err != nil {
+		return err
+	}
+	for previousNumber, previousNameToEnumValue := range previousNumberToNameToEnumValue {
+		if _, ok := numberToNameToEnumValue[previousNumber]; !ok {
+			if !isDeletedEnumValueAllowedWithRules(previousNumber, previousNameToEnumValue, enum, allowIfNumberReserved, allowIfNameReserved) {
+				suffix := ""
+				if allowIfNumberReserved && allowIfNameReserved {
+					return errors.New("both allowIfNumberReserved and allowIfNameReserved set")
+				}
+				if allowIfNumberReserved {
+					suffix = fmt.Sprintf(` without reserving the number "%d"`, previousNumber)
+				}
+				if allowIfNameReserved {
+					nameSuffix := ""
+					if len(previousNameToEnumValue) > 1 {
+						nameSuffix = "s"
+					}
+					suffix = fmt.Sprintf(` without reserving the name%s %s`, nameSuffix, stringutil.JoinSliceQuoted(getSortedEnumValueNames(previousNameToEnumValue), ", "))
+				}
+				add(enum, enum.Location(), `Previously present enum value "%d" on enum %q was deleted%s.`, previousNumber, enum.Name(), suffix)
+			}
+		}
+	}
+	return nil
+}
+
+func isDeletedEnumValueAllowedWithRules(previousNumber int, previousNameToEnumValue map[string]protosource.EnumValue, enum protosource.Enum, allowIfNumberReserved bool, allowIfNameReserved bool) bool {
+	if allowIfNumberReserved {
+		return protosource.NumberInReservedRanges(previousNumber, enum.ReservedTagRanges()...)
+	}
+	if allowIfNameReserved {
+		// if true for all names, then ok
+		for previousName := range previousNameToEnumValue {
+			if !protosource.NameInReservedNames(previousName, enum.ReservedNames()...) {
+				return false
+			}
+		}
+		return true
+	}
+	return false
+}
+
+// CheckEnumValueSameName is a check function.
+var CheckEnumValueSameName = newEnumValuePairCheckFunc(checkEnumValueSameName)
+
+func checkEnumValueSameName(add addFunc, previousNameToEnumValue map[string]protosource.EnumValue, nameToEnumValue map[string]protosource.EnumValue) error {
+	previousNames := getSortedEnumValueNames(previousNameToEnumValue)
+	names := getSortedEnumValueNames(nameToEnumValue)
+	// all current names for this number need to be in the previous set
+	// ie if you now have FOO=2, BAR=2, you need to have had FOO=2, BAR=2 previously
+	// FOO=2, BAR=2, BAZ=2 now would pass
+	// FOO=2, BAR=2, BAZ=2 previously would fail
+	if !stringutil.SliceElementsContained(names, previousNames) {
+		previousNamesString := stringutil.JoinSliceQuoted(previousNames, ", ")
+		namesString := stringutil.JoinSliceQuoted(names, ", ")
+		nameSuffix := ""
+		if len(previousNames) > 1 && len(names) > 1 {
+			nameSuffix = "s"
+		}
+		for _, enumValue := range nameToEnumValue {
+			add(enumValue, enumValue.NumberLocation(), `Enum value "%d" on enum %q changed name%s from %s to %s.`, enumValue.Number(), enumValue.Enum().Name(), nameSuffix, previousNamesString, namesString)
+		}
+	}
+	return nil
+}
+
+// CheckExtensionMessageNoDelete is a check function.
+var CheckExtensionMessageNoDelete = newMessagePairCheckFunc(checkExtensionMessageNoDelete)
+
+func checkExtensionMessageNoDelete(add addFunc, previousMessage protosource.Message, message protosource.Message) error {
+	previousStringToExtensionRange := protosource.StringToExtensionMessageRange(previousMessage)
+	stringToExtensionRange := protosource.StringToExtensionMessageRange(message)
+	for previousString := range previousStringToExtensionRange {
+		if _, ok := stringToExtensionRange[previousString]; !ok {
+			add(message, message.Location(), `Previously present extension range %q on message %q was deleted.`, previousString, message.Name())
+		}
+	}
+	return nil
+}
+
+// CheckFieldNoDelete is a check function.
+var CheckFieldNoDelete = newMessagePairCheckFunc(checkFieldNoDelete)
+
+func checkFieldNoDelete(add addFunc, previousMessage protosource.Message, message protosource.Message) error {
+	return checkFieldNoDeleteWithRules(add, previousMessage, message, false, false)
+}
+
+// CheckFieldNoDeleteUnlessNumberReserved is a check function.
+var CheckFieldNoDeleteUnlessNumberReserved = newMessagePairCheckFunc(checkFieldNoDeleteUnlessNumberReserved)
+
+func checkFieldNoDeleteUnlessNumberReserved(add addFunc, previousMessage protosource.Message, message protosource.Message) error {
+	return checkFieldNoDeleteWithRules(add, previousMessage, message, true, false)
+}
+
+// CheckFieldNoDeleteUnlessNameReserved is a check function.
+var CheckFieldNoDeleteUnlessNameReserved = newMessagePairCheckFunc(checkFieldNoDeleteUnlessNameReserved)
+
+func checkFieldNoDeleteUnlessNameReserved(add addFunc, previousMessage protosource.Message, message protosource.Message) error {
+	return checkFieldNoDeleteWithRules(add, previousMessage, message, false, true)
+}
+
+func checkFieldNoDeleteWithRules(add addFunc, previousMessage protosource.Message, message protosource.Message, allowIfNumberReserved bool, allowIfNameReserved bool) error {
+	previousNumberToField, err := protosource.NumberToMessageField(previousMessage)
+	if err != nil {
+		return err
+	}
+	numberToField, err := protosource.NumberToMessageField(message)
+	if err != nil {
+		return err
+	}
+	for previousNumber, previousField := range previousNumberToField {
+		if _, ok := numberToField[previousNumber]; !ok {
+			if !isDeletedFieldAllowedWithRules(previousField, message, allowIfNumberReserved, allowIfNameReserved) {
+				// otherwise prints as hex
+				previousNumberString := strconv.FormatInt(int64(previousNumber), 10)
+				suffix := ""
+				if allowIfNumberReserved && allowIfNameReserved {
+					return errors.New("both allowIfNumberReserved and allowIfNameReserved set")
+				}
+				if allowIfNumberReserved {
+					suffix = fmt.Sprintf(` without reserving the number "%d"`, previousField.Number())
+				}
+				if allowIfNameReserved {
+					suffix = fmt.Sprintf(` without reserving the name %q`, previousField.Name())
+				}
+				add(message, message.Location(), `Previously present field %q with name %q on message %q was deleted%s.`, previousNumberString, previousField.Name(), message.Name(), suffix)
+			}
+		}
+	}
+	return nil
+}
+
+func isDeletedFieldAllowedWithRules(previousField protosource.Field, message protosource.Message, allowIfNumberReserved bool, allowIfNameReserved bool) bool {
+	return (allowIfNumberReserved && protosource.NumberInReservedRanges(previousField.Number(), message.ReservedTagRanges()...)) ||
+		(allowIfNameReserved && protosource.NameInReservedNames(previousField.Name(), message.ReservedNames()...))
+}
+
+// CheckFieldSameCType is a check function.
+var CheckFieldSameCType = newFieldPairCheckFunc(checkFieldSameCType)
+
+func checkFieldSameCType(add addFunc, previousField protosource.Field, field protosource.Field) error {
+	if previousField.CType() != field.CType() {
+		// otherwise prints as hex
+		numberString := strconv.FormatInt(int64(field.Number()), 10)
+		add(field, withBackupLocation(field.CTypeLocation(), field.Location()), `Field %q with name %q on message %q changed option "ctype" from %q to %q.`, numberString, field.Name(), field.Message().Name(), previousField.CType().String(), field.CType().String())
+	}
+	return nil
+}
+
+// CheckFieldSameJSONName is a check function.
+var CheckFieldSameJSONName = newFieldPairCheckFunc(checkFieldSameJSONName)
+
+func checkFieldSameJSONName(add addFunc, previousField protosource.Field, field protosource.Field) error {
+	if previousField.JSONName() != field.JSONName() {
+		// otherwise prints as hex
+		numberString := strconv.FormatInt(int64(field.Number()), 10)
+		add(field, withBackupLocation(field.JSONNameLocation(), field.Location()), `Field %q with name %q on message %q changed option "json_name" from %q to %q.`, numberString, field.Name(), field.Message().Name(), previousField.JSONName(), field.JSONName())
+	}
+	return nil
+}
+
+// CheckFieldSameJSType is a check function.
+var CheckFieldSameJSType = newFieldPairCheckFunc(checkFieldSameJSType)
+
+func checkFieldSameJSType(add addFunc, previousField protosource.Field, field protosource.Field) error {
+	if previousField.JSType() != field.JSType() {
+		// otherwise prints as hex
+		numberString := strconv.FormatInt(int64(field.Number()), 10)
+		add(field, withBackupLocation(field.JSTypeLocation(), field.Location()), `Field %q with name %q on message %q changed option "jstype" from %q to %q.`, numberString, field.Name(), field.Message().Name(), previousField.JSType().String(), field.JSType().String())
+	}
+	return nil
+}
+
+// CheckFieldSameLabel is a check function.
+var CheckFieldSameLabel = newFieldPairCheckFunc(checkFieldSameLabel)
+
+func checkFieldSameLabel(add addFunc, previousField protosource.Field, field protosource.Field) error {
+	if previousField.Label() != field.Label() {
+		// otherwise prints as hex
+		numberString := strconv.FormatInt(int64(field.Number()), 10)
+		// TODO: specific label location
+		add(field, field.Location(), `Field %q on message %q changed label from %q to %q.`, numberString, field.Message().Name(), previousField.Label().String(), field.Label().String())
+	}
+	return nil
+}
+
+// CheckFieldSameName is a check function.
+var CheckFieldSameName = newFieldPairCheckFunc(checkFieldSameName)
+
+func checkFieldSameName(add addFunc, previousField protosource.Field, field protosource.Field) error {
+	if previousField.Name() != field.Name() {
+		// otherwise prints as hex
+		numberString := strconv.FormatInt(int64(field.Number()), 10)
+		add(field, field.NameLocation(), `Field %q on message %q changed name from %q to %q.`, numberString, field.Message().Name(), previousField.Name(), field.Name())
+	}
+	return nil
+}
+
+// CheckFieldSameOneof is a check function.
+var CheckFieldSameOneof = newFieldPairCheckFunc(checkFieldSameOneof)
+
+func checkFieldSameOneof(add addFunc, previousField protosource.Field, field protosource.Field) error {
+	previousOneof := previousField.Oneof()
+	oneof := field.Oneof()
+	previousInsideOneof := previousOneof != nil
+	insideOneof := oneof != nil
+	if !previousInsideOneof && !insideOneof {
+		return nil
+	}
+	if previousInsideOneof && insideOneof {
+		if previousOneof.Name() != oneof.Name() {
+			// otherwise prints as hex
+			numberString := strconv.FormatInt(int64(field.Number()), 10)
+			add(field, field.Location(), `Field %q on message %q moved from oneof %q to oneof %q.`, numberString, field.Message().Name(), previousOneof.Name(), oneof.Name())
+		}
+		return nil
+	}
+
+	previous := "inside"
+	current := "outside"
+	if insideOneof {
+		previous = "outside"
+		current = "inside"
+	}
+	// otherwise prints as hex
+	numberString := strconv.FormatInt(int64(field.Number()), 10)
+	add(field, field.Location(), `Field %q on message %q moved from %s to %s a oneof.`, numberString, field.Message().Name(), previous, current)
+	return nil
+}
+
+// CheckFieldSameType is a check function.
+var CheckFieldSameType = newFieldPairCheckFunc(checkFieldSameType)
+
+// TODO: locations not working for map entries
+// TODO: weird output for map entries:
+//
+// breaking_field_same_type/1.proto:1:1:Field "2" on message "SixEntry" changed type from ".a.One" to ".a.Two".
+// breaking_field_same_type/1.proto:1:1:Field "2" on message "SixEntry" changed type from ".a.One" to ".a.Two".
+// breaking_field_same_type/1.proto:1:1:Field "2" on message "SixEntry" changed type from ".a.One" to ".a.Two".
+// breaking_field_same_type/1.proto:8:3:Field "1" on message "Two" changed type from "int32" to "int64".
+// breaking_field_same_type/1.proto:9:3:Field "2" on message "Two" changed type from ".a.One" to ".a.Two".
+// breaking_field_same_type/1.proto:11:3:Field "4" on message "Two" changed type from ".a.One" to ".a.Two".
+// breaking_field_same_type/1.proto:12:3:Field "5" on message "Two" changed type from ".a.Two.FiveEntry" to ".a.Two".
+// breaking_field_same_type/1.proto:19:7:Field "1" on message "Five" changed type from "int32" to "int64".
+// breaking_field_same_type/1.proto:20:7:Field "2" on message "Five" changed type from ".a.One" to ".a.Two".
+// breaking_field_same_type/1.proto:22:7:Field "4" on message "Five" changed type from ".a.One" to ".a.Two".
+// breaking_field_same_type/1.proto:23:7:Field "5" on message "Five" changed type from ".a.Three.Four.Five.FiveEntry" to ".a.Two".
+// breaking_field_same_type/1.proto:36:5:Field "1" on message "Seven" changed type from "int32" to "int64".
+// breaking_field_same_type/1.proto:37:5:Field "2" on message "Seven" changed type from ".a.One" to ".a.Two".
+// breaking_field_same_type/1.proto:39:5:Field "4" on message "Seven" changed type from ".a.One" to ".a.Two".
+// breaking_field_same_type/1.proto:40:5:Field "5" on message "Seven" changed type from ".a.Three.Seven.FiveEntry" to ".a.Two".
+// breaking_field_same_type/2.proto:64:5:Field "1" on message "Nine" changed type from "int32" to "int64".
+// breaking_field_same_type/2.proto:65:5:Field "2" on message "Nine" changed type from ".a.One" to ".a.Nine".
+func checkFieldSameType(add addFunc, previousField protosource.Field, field protosource.Field) error {
+	if previousField.Type() != field.Type() {
+		// otherwise prints as hex
+		previousNumberString := strconv.FormatInt(int64(previousField.Number()), 10)
+		add(field, field.TypeLocation(), `Field %q on message %q changed type from %q to %q.`, previousNumberString, field.Message().Name(), previousField.Type().String(), field.Type().String())
+		return nil
+	}
+
+	switch field.Type() {
+	case protosource.FieldDescriptorProtoTypeEnum, protosource.FieldDescriptorProtoTypeGroup, protosource.FieldDescriptorProtoTypeMessage:
+		// otherwise prints as hex
+		numberString := strconv.FormatInt(int64(previousField.Number()), 10)
+		if previousField.TypeName() != field.TypeName() {
+			add(
+				field,
+				field.TypeNameLocation(),
+				`Field %q on message %q changed type from %q to %q.`,
+				numberString,
+				field.Message().Name(),
+				strings.TrimPrefix(previousField.TypeName(), "."),
+				strings.TrimPrefix(field.TypeName(), "."),
+			)
+		}
+	}
+	return nil
+}
+
+// CheckFileNoDelete is a check function.
+var CheckFileNoDelete = newFilesCheckFunc(checkFileNoDelete)
+
+func checkFileNoDelete(add addFunc, previousFiles []protosource.File, files []protosource.File) error {
+	previousFilePathToFile, err := protosource.FilePathToFile(previousFiles...)
+	if err != nil {
+		return err
+	}
+	filePathToFile, err := protosource.FilePathToFile(files...)
+	if err != nil {
+		return err
+	}
+	for previousFilePath := range previousFilePathToFile {
+		if _, ok := filePathToFile[previousFilePath]; !ok {
+			add(nil, nil, `Previously present file %q was deleted.`, previousFilePath)
+		}
+	}
+	return nil
+}
+
+// CheckFileSameCsharpNamespace is a check function.
+var CheckFileSameCsharpNamespace = newFilePairCheckFunc(checkFileSameCsharpNamespace)
+
+func checkFileSameCsharpNamespace(add addFunc, previousFile protosource.File, file protosource.File) error {
+	return checkFileSameValue(add, previousFile.CsharpNamespace(), file.CsharpNamespace(), file, file.CsharpNamespaceLocation(), `option "csharp_namespace"`)
+}
+
+// CheckFileSameGoPackage is a check function.
+var CheckFileSameGoPackage = newFilePairCheckFunc(checkFileSameGoPackage)
+
+func checkFileSameGoPackage(add addFunc, previousFile protosource.File, file protosource.File) error {
+	return checkFileSameValue(add, previousFile.GoPackage(), file.GoPackage(), file, file.GoPackageLocation(), `option "go_package"`)
+}
+
+// CheckFileSameJavaMultipleFiles is a check function.
+var CheckFileSameJavaMultipleFiles = newFilePairCheckFunc(checkFileSameJavaMultipleFiles)
+
+func checkFileSameJavaMultipleFiles(add addFunc, previousFile protosource.File, file protosource.File) error {
+	return checkFileSameValue(add, strconv.FormatBool(previousFile.JavaMultipleFiles()), strconv.FormatBool(file.JavaMultipleFiles()), file, file.JavaMultipleFilesLocation(), `option "java_multiple_files"`)
+}
+
+// CheckFileSameJavaOuterClassname is a check function.
+var CheckFileSameJavaOuterClassname = newFilePairCheckFunc(checkFileSameJavaOuterClassname)
+
+func checkFileSameJavaOuterClassname(add addFunc, previousFile protosource.File, file protosource.File) error {
+	return checkFileSameValue(add, previousFile.JavaOuterClassname(), file.JavaOuterClassname(), file, file.JavaOuterClassnameLocation(), `option "java_outer_classname"`)
+}
+
+// CheckFileSameJavaPackage is a check function.
+var CheckFileSameJavaPackage = newFilePairCheckFunc(checkFileSameJavaPackage)
+
+func checkFileSameJavaPackage(add addFunc, previousFile protosource.File, file protosource.File) error {
+	return checkFileSameValue(add, previousFile.JavaPackage(), file.JavaPackage(), file, file.JavaPackageLocation(), `option "java_package"`)
+}
+
+// CheckFileSameJavaStringCheckUtf8 is a check function.
+var CheckFileSameJavaStringCheckUtf8 = newFilePairCheckFunc(checkFileSameJavaStringCheckUtf8)
+
+func checkFileSameJavaStringCheckUtf8(add addFunc, previousFile protosource.File, file protosource.File) error {
+	return checkFileSameValue(add, strconv.FormatBool(previousFile.JavaStringCheckUtf8()), strconv.FormatBool(file.JavaStringCheckUtf8()), file, file.JavaStringCheckUtf8Location(), `option "java_string_check_utf8"`)
+}
+
+// CheckFileSameObjcClassPrefix is a check function.
+var CheckFileSameObjcClassPrefix = newFilePairCheckFunc(checkFileSameObjcClassPrefix)
+
+func checkFileSameObjcClassPrefix(add addFunc, previousFile protosource.File, file protosource.File) error {
+	return checkFileSameValue(add, previousFile.ObjcClassPrefix(), file.ObjcClassPrefix(), file, file.ObjcClassPrefixLocation(), `option "objc_class_prefix"`)
+}
+
+// CheckFileSamePackage is a check function.
+var CheckFileSamePackage = newFilePairCheckFunc(checkFileSamePackage)
+
+func checkFileSamePackage(add addFunc, previousFile protosource.File, file protosource.File) error {
+	return checkFileSameValue(add, previousFile.Package(), file.Package(), file, file.PackageLocation(), `package`)
+}
+
+// CheckFileSamePhpClassPrefix is a check function.
+var CheckFileSamePhpClassPrefix = newFilePairCheckFunc(checkFileSamePhpClassPrefix)
+
+func checkFileSamePhpClassPrefix(add addFunc, previousFile protosource.File, file protosource.File) error {
+	return checkFileSameValue(add, previousFile.PhpClassPrefix(), file.PhpClassPrefix(), file, file.PhpClassPrefixLocation(), `option "php_class_prefix"`)
+}
+
+// CheckFileSamePhpNamespace is a check function.
+var CheckFileSamePhpNamespace = newFilePairCheckFunc(checkFileSamePhpNamespace)
+
+func checkFileSamePhpNamespace(add addFunc, previousFile protosource.File, file protosource.File) error {
+	return checkFileSameValue(add, previousFile.PhpNamespace(), file.PhpNamespace(), file, file.PhpNamespaceLocation(), `option "php_namespace"`)
+}
+
+// CheckFileSamePhpMetadataNamespace is a check function.
+var CheckFileSamePhpMetadataNamespace = newFilePairCheckFunc(checkFileSamePhpMetadataNamespace)
+
+func checkFileSamePhpMetadataNamespace(add addFunc, previousFile protosource.File, file protosource.File) error {
+	return checkFileSameValue(add, previousFile.PhpMetadataNamespace(), file.PhpMetadataNamespace(), file, file.PhpMetadataNamespaceLocation(), `option "php_metadata_namespace"`)
+}
+
+// CheckFileSameRubyPackage is a check function.
+var CheckFileSameRubyPackage = newFilePairCheckFunc(checkFileSameRubyPackage)
+
+func checkFileSameRubyPackage(add addFunc, previousFile protosource.File, file protosource.File) error {
+	return checkFileSameValue(add, previousFile.RubyPackage(), file.RubyPackage(), file, file.RubyPackageLocation(), `option "ruby_package"`)
+}
+
+// CheckFileSameSwiftPrefix is a check function.
+var CheckFileSameSwiftPrefix = newFilePairCheckFunc(checkFileSameSwiftPrefix)
+
+func checkFileSameSwiftPrefix(add addFunc, previousFile protosource.File, file protosource.File) error {
+	return checkFileSameValue(add, previousFile.SwiftPrefix(), file.SwiftPrefix(), file, file.SwiftPrefixLocation(), `option "swift_prefix"`)
+}
+
+// CheckFileSameOptimizeFor is a check function.
+var CheckFileSameOptimizeFor = newFilePairCheckFunc(checkFileSameOptimizeFor)
+
+func checkFileSameOptimizeFor(add addFunc, previousFile protosource.File, file protosource.File) error {
+	return checkFileSameValue(add, previousFile.OptimizeFor().String(), file.OptimizeFor().String(), file, file.OptimizeForLocation(), `option "optimize_for"`)
+}
+
+// CheckFileSameCcGenericServices is a check function.
+var CheckFileSameCcGenericServices = newFilePairCheckFunc(checkFileSameCcGenericServices)
+
+func checkFileSameCcGenericServices(add addFunc, previousFile protosource.File, file protosource.File) error {
+	return checkFileSameValue(add, strconv.FormatBool(previousFile.CcGenericServices()), strconv.FormatBool(file.CcGenericServices()), file, file.CcGenericServicesLocation(), `option "cc_generic_services"`)
+}
+
+// CheckFileSameJavaGenericServices is a check function.
+var CheckFileSameJavaGenericServices = newFilePairCheckFunc(checkFileSameJavaGenericServices)
+
+func checkFileSameJavaGenericServices(add addFunc, previousFile protosource.File, file protosource.File) error {
+	return checkFileSameValue(add, strconv.FormatBool(previousFile.JavaGenericServices()), strconv.FormatBool(file.JavaGenericServices()), file, file.JavaGenericServicesLocation(), `option "java_generic_services"`)
+}
+
+// CheckFileSamePyGenericServices is a check function.
+var CheckFileSamePyGenericServices = newFilePairCheckFunc(checkFileSamePyGenericServices)
+
+func checkFileSamePyGenericServices(add addFunc, previousFile protosource.File, file protosource.File) error {
+	return checkFileSameValue(add, strconv.FormatBool(previousFile.PyGenericServices()), strconv.FormatBool(file.PyGenericServices()), file, file.PyGenericServicesLocation(), `option "py_generic_services"`)
+}
+
+// CheckFileSamePhpGenericServices is a check function.
+var CheckFileSamePhpGenericServices = newFilePairCheckFunc(checkFileSamePhpGenericServices)
+
+func checkFileSamePhpGenericServices(add addFunc, previousFile protosource.File, file protosource.File) error {
+	return checkFileSameValue(add, strconv.FormatBool(previousFile.PhpGenericServices()), strconv.FormatBool(file.PhpGenericServices()), file, file.PhpGenericServicesLocation(), `option "php_generic_services"`)
+}
+
+// CheckFileSameCcEnableArenas is a check function.
+var CheckFileSameCcEnableArenas = newFilePairCheckFunc(checkFileSameCcEnableArenas)
+
+func checkFileSameCcEnableArenas(add addFunc, previousFile protosource.File, file protosource.File) error {
+	return checkFileSameValue(add, strconv.FormatBool(previousFile.CcEnableArenas()), strconv.FormatBool(file.CcEnableArenas()), file, file.CcEnableArenasLocation(), `option "cc_enable_arenas"`)
+}
+
+// CheckFileSameSyntax is a check function.
+var CheckFileSameSyntax = newFilePairCheckFunc(checkFileSameSyntax)
+
+func checkFileSameSyntax(add addFunc, previousFile protosource.File, file protosource.File) error {
+	return checkFileSameValue(add, previousFile.Syntax().String(), file.Syntax().String(), file, file.SyntaxLocation(), `syntax`)
+}
+
+func checkFileSameValue(add addFunc, previousValue interface{}, value interface{}, file protosource.File, location protosource.Location, name string) error {
+	if previousValue != value {
+		add(file, location, `File %s changed from %q to %q.`, name, previousValue, value)
+	}
+	return nil
+}
+
+// CheckMessageNoDelete is a check function.
+var CheckMessageNoDelete = newFilePairCheckFunc(checkMessageNoDelete)
+
+func checkMessageNoDelete(add addFunc, previousFile protosource.File, file protosource.File) error {
+	previousNestedNameToMessage, err := protosource.NestedNameToMessage(previousFile)
+	if err != nil {
+		return err
+	}
+	nestedNameToMessage, err := protosource.NestedNameToMessage(file)
+	if err != nil {
+		return err
+	}
+	for previousNestedName := range previousNestedNameToMessage {
+		if _, ok := nestedNameToMessage[previousNestedName]; !ok {
+			descriptor, location := getDescriptorAndLocationForDeletedMessage(file, nestedNameToMessage, previousNestedName)
+			add(descriptor, location, `Previously present message %q was deleted from file.`, previousNestedName)
+		}
+	}
+	return nil
+}
+
+// CheckMessageNoRemoveStandardDescriptorAccessor is a check function.
+var CheckMessageNoRemoveStandardDescriptorAccessor = newMessagePairCheckFunc(checkMessageNoRemoveStandardDescriptorAccessor)
+
+func checkMessageNoRemoveStandardDescriptorAccessor(add addFunc, previousMessage protosource.Message, message protosource.Message) error {
+	previous := strconv.FormatBool(previousMessage.NoStandardDescriptorAccessor())
+	current := strconv.FormatBool(message.NoStandardDescriptorAccessor())
+	if previous == "false" && current == "true" {
+		add(message, message.NoStandardDescriptorAccessorLocation(), `Message option "no_standard_descriptor_accessor" changed from %q to %q.`, previous, current)
+	}
+	return nil
+}
+
+// CheckMessageSameMessageSetWireFormat is a check function.
+var CheckMessageSameMessageSetWireFormat = newMessagePairCheckFunc(checkMessageSameMessageSetWireFormat)
+
+func checkMessageSameMessageSetWireFormat(add addFunc, previousMessage protosource.Message, message protosource.Message) error {
+	previous := strconv.FormatBool(previousMessage.MessageSetWireFormat())
+	current := strconv.FormatBool(message.MessageSetWireFormat())
+	if previous != current {
+		add(message, message.MessageSetWireFormatLocation(), `Message option "message_set_wire_format" changed from %q to %q.`, previous, current)
+	}
+	return nil
+}
+
+// CheckOneofNoDelete is a check function.
+var CheckOneofNoDelete = newMessagePairCheckFunc(checkOneofNoDelete)
+
+func checkOneofNoDelete(add addFunc, previousMessage protosource.Message, message protosource.Message) error {
+	previousNameToOneof, err := protosource.NameToMessageOneof(previousMessage)
+	if err != nil {
+		return err
+	}
+	nameToOneof, err := protosource.NameToMessageOneof(message)
+	if err != nil {
+		return err
+	}
+	for previousName := range previousNameToOneof {
+		if _, ok := nameToOneof[previousName]; !ok {
+			add(message, message.Location(), `Previously present oneof %q on message %q was deleted.`, previousName, message.Name())
+		}
+	}
+	return nil
+}
+
+// CheckPackageEnumNoDelete is a check function.
+var CheckPackageEnumNoDelete = newFilesCheckFunc(checkPackageEnumNoDelete)
+
+func checkPackageEnumNoDelete(add addFunc, previousFiles []protosource.File, files []protosource.File) error {
+	previousPackageToNestedNameToEnum, err := protosource.PackageToNestedNameToEnum(previousFiles...)
+	if err != nil {
+		return err
+	}
+	packageToNestedNameToEnum, err := protosource.PackageToNestedNameToEnum(files...)
+	if err != nil {
+		return err
+	}
+	// caching across loops
+	var filePathToFile map[string]protosource.File
+	for previousPackage, previousNestedNameToEnum := range previousPackageToNestedNameToEnum {
+		if nestedNameToEnum, ok := packageToNestedNameToEnum[previousPackage]; ok {
+			for previousNestedName, previousEnum := range previousNestedNameToEnum {
+				if _, ok := nestedNameToEnum[previousNestedName]; !ok {
+					// if cache not populated, populate it
+					if filePathToFile == nil {
+						filePathToFile, err = protosource.FilePathToFile(files...)
+						if err != nil {
+							return err
+						}
+					}
+					// check if the file still exists
+					file, ok := filePathToFile[previousEnum.File().Path()]
+					if ok {
+						// file exists, try to get a location to attach the error to
+						descriptor, location, err := getDescriptorAndLocationForDeletedEnum(file, previousNestedName)
+						if err != nil {
+							return err
+						}
+						add(descriptor, location, `Previously present enum %q was deleted from package %q.`, previousNestedName, previousPackage)
+					} else {
+						// file does not exist, we don't know where the enum was deleted from
+						add(nil, nil, `Previously present enum %q was deleted from package %q.`, previousNestedName, previousPackage)
+					}
+				}
+			}
+		}
+	}
+	return nil
+}
+
+// CheckPackageMessageNoDelete is a check function.
+var CheckPackageMessageNoDelete = newFilesCheckFunc(checkPackageMessageNoDelete)
+
+func checkPackageMessageNoDelete(add addFunc, previousFiles []protosource.File, files []protosource.File) error {
+	previousPackageToNestedNameToMessage, err := protosource.PackageToNestedNameToMessage(previousFiles...)
+	if err != nil {
+		return err
+	}
+	packageToNestedNameToMessage, err := protosource.PackageToNestedNameToMessage(files...)
+	if err != nil {
+		return err
+	}
+	// caching across loops
+	var filePathToFile map[string]protosource.File
+	for previousPackage, previousNestedNameToMessage := range previousPackageToNestedNameToMessage {
+		if nestedNameToMessage, ok := packageToNestedNameToMessage[previousPackage]; ok {
+			for previousNestedName, previousMessage := range previousNestedNameToMessage {
+				if _, ok := nestedNameToMessage[previousNestedName]; !ok {
+					// if cache not populated, populate it
+					if filePathToFile == nil {
+						filePathToFile, err = protosource.FilePathToFile(files...)
+						if err != nil {
+							return err
+						}
+					}
+					// check if the file still exists
+					file, ok := filePathToFile[previousMessage.File().Path()]
+					if ok {
+						// file exists, try to get a location to attach the error to
+						descriptor, location := getDescriptorAndLocationForDeletedMessage(file, nestedNameToMessage, previousNestedName)
+						add(descriptor, location, `Previously present message %q was deleted from package %q.`, previousNestedName, previousPackage)
+					} else {
+						// file does not exist, we don't know where the message was deleted from
+						add(nil, nil, `Previously present message %q was deleted from package %q.`, previousNestedName, previousPackage)
+					}
+				}
+			}
+		}
+	}
+	return nil
+}
+
+// CheckPackageNoDelete is a check function.
+var CheckPackageNoDelete = newFilesCheckFunc(checkPackageNoDelete)
+
+func checkPackageNoDelete(add addFunc, previousFiles []protosource.File, files []protosource.File) error {
+	previousPackageToFiles, err := protosource.PackageToFiles(previousFiles...)
+	if err != nil {
+		return err
+	}
+	packageToFiles, err := protosource.PackageToFiles(files...)
+	if err != nil {
+		return err
+	}
+	for previousPackage := range previousPackageToFiles {
+		if _, ok := packageToFiles[previousPackage]; !ok {
+			add(nil, nil, `Previously present package %q was deleted.`, previousPackage)
+		}
+	}
+	return nil
+}
+
+// CheckPackageServiceNoDelete is a check function.
+var CheckPackageServiceNoDelete = newFilesCheckFunc(checkPackageServiceNoDelete)
+
+func checkPackageServiceNoDelete(add addFunc, previousFiles []protosource.File, files []protosource.File) error {
+	previousPackageToNameToService, err := protosource.PackageToNameToService(previousFiles...)
+	if err != nil {
+		return err
+	}
+	packageToNameToService, err := protosource.PackageToNameToService(files...)
+	if err != nil {
+		return err
+	}
+	// caching across loops
+	var filePathToFile map[string]protosource.File
+	for previousPackage, previousNameToService := range previousPackageToNameToService {
+		if nameToService, ok := packageToNameToService[previousPackage]; ok {
+			for previousName, previousService := range previousNameToService {
+				if _, ok := nameToService[previousName]; !ok {
+					// if cache not populated, populate it
+					if filePathToFile == nil {
+						filePathToFile, err = protosource.FilePathToFile(files...)
+						if err != nil {
+							return err
+						}
+					}
+					// check if the file still exists
+					file, ok := filePathToFile[previousService.File().Path()]
+					if ok {
+						// file exists
+						add(file, nil, `Previously present service %q was deleted from package %q.`, previousName, previousPackage)
+					} else {
+						// file does not exist, we don't know where the service was deleted from
+						// TODO: find the service and print that this moved?
+						add(nil, nil, `Previously present service %q was deleted from package %q.`, previousName, previousPackage)
+					}
+				}
+			}
+		}
+	}
+	return nil
+}
+
+// CheckReservedEnumNoDelete is a check function.
+var CheckReservedEnumNoDelete = newEnumPairCheckFunc(checkReservedEnumNoDelete)
+
+func checkReservedEnumNoDelete(add addFunc, previousEnum protosource.Enum, enum protosource.Enum) error {
+	previousStringToReservedRange := protosource.StringToReservedTagRange(previousEnum)
+	stringToReservedRange := protosource.StringToReservedTagRange(enum)
+	for previousString := range previousStringToReservedRange {
+		if _, ok := stringToReservedRange[previousString]; !ok {
+			add(enum, enum.Location(), `Previously present reserved range %q on enum %q was deleted.`, previousString, enum.Name())
+		}
+	}
+	previousValueToReservedName := protosource.ValueToReservedName(previousEnum)
+	valueToReservedName := protosource.ValueToReservedName(enum)
+	for previousValue := range previousValueToReservedName {
+		if _, ok := valueToReservedName[previousValue]; !ok {
+			add(enum, enum.Location(), `Previously present reserved name %q on enum %q was deleted.`, previousValue, enum.Name())
+		}
+	}
+	return nil
+}
+
+// CheckReservedMessageNoDelete is a check function.
+var CheckReservedMessageNoDelete = newMessagePairCheckFunc(checkReservedMessageNoDelete)
+
+func checkReservedMessageNoDelete(add addFunc, previousMessage protosource.Message, message protosource.Message) error {
+	previousStringToReservedRange := protosource.StringToReservedTagRange(previousMessage)
+	stringToReservedRange := protosource.StringToReservedTagRange(message)
+	for previousString := range previousStringToReservedRange {
+		if _, ok := stringToReservedRange[previousString]; !ok {
+			add(message, message.Location(), `Previously present reserved range %q on message %q was deleted.`, previousString, message.Name())
+		}
+	}
+	previousValueToReservedName := protosource.ValueToReservedName(previousMessage)
+	valueToReservedName := protosource.ValueToReservedName(message)
+	for previousValue := range previousValueToReservedName {
+		if _, ok := valueToReservedName[previousValue]; !ok {
+			add(message, message.Location(), `Previously present reserved name %q on message %q was deleted.`, previousValue, message.Name())
+		}
+	}
+	return nil
+}
+
+// CheckRPCNoDelete is a check function.
+var CheckRPCNoDelete = newServicePairCheckFunc(checkRPCNoDelete)
+
+func checkRPCNoDelete(add addFunc, previousService protosource.Service, service protosource.Service) error {
+	previousNameToMethod, err := protosource.NameToMethod(previousService)
+	if err != nil {
+		return err
+	}
+	nameToMethod, err := protosource.NameToMethod(service)
+	if err != nil {
+		return err
+	}
+	for previousName := range previousNameToMethod {
+		if _, ok := nameToMethod[previousName]; !ok {
+			add(service, service.Location(), `Previously present RPC %q on service %q was deleted.`, previousName, service.Name())
+		}
+	}
+	return nil
+}
+
+// CheckRPCSameClientStreaming is a check function.
+var CheckRPCSameClientStreaming = newMethodPairCheckFunc(checkRPCSameClientStreaming)
+
+func checkRPCSameClientStreaming(add addFunc, previousMethod protosource.Method, method protosource.Method) error {
+	if previousMethod.ClientStreaming() != method.ClientStreaming() {
+		previous := "streaming"
+		current := "unary"
+		if method.ClientStreaming() {
+			previous = "unary"
+			current = "streaming"
+		}
+		add(method, method.Location(), `RPC %q on service %q changed from client %s to client %s.`, method.Name(), method.Service().Name(), previous, current)
+	}
+	return nil
+}
+
+// CheckRPCSameIdempotencyLevel is a check function.
+var CheckRPCSameIdempotencyLevel = newMethodPairCheckFunc(checkRPCSameIdempotencyLevel)
+
+func checkRPCSameIdempotencyLevel(add addFunc, previousMethod protosource.Method, method protosource.Method) error {
+	previous := previousMethod.IdempotencyLevel()
+	current := method.IdempotencyLevel()
+	if previous != current {
+		add(method, method.IdempotencyLevelLocation(), `RPC %q on service %q changed option "idempotency_level" from %q to %q.`, method.Name(), method.Service().Name(), previous.String(), current.String())
+	}
+	return nil
+}
+
+// CheckRPCSameRequestType is a check function.
+var CheckRPCSameRequestType = newMethodPairCheckFunc(checkRPCSameRequestType)
+
+func checkRPCSameRequestType(add addFunc, previousMethod protosource.Method, method protosource.Method) error {
+	if previousMethod.InputTypeName() != method.InputTypeName() {
+		add(method, method.InputTypeLocation(), `RPC %q on service %q changed request type from %q to %q.`, method.Name(), method.Service().Name(), previousMethod.InputTypeName(), method.InputTypeName())
+	}
+	return nil
+}
+
+// CheckRPCSameResponseType is a check function.
+var CheckRPCSameResponseType = newMethodPairCheckFunc(checkRPCSameResponseType)
+
+func checkRPCSameResponseType(add addFunc, previousMethod protosource.Method, method protosource.Method) error {
+	if previousMethod.OutputTypeName() != method.OutputTypeName() {
+		add(method, method.OutputTypeLocation(), `RPC %q on service %q changed response type from %q to %q.`, method.Name(), method.Service().Name(), previousMethod.OutputTypeName(), method.OutputTypeName())
+	}
+	return nil
+}
+
+// CheckRPCSameServerStreaming is a check function.
+var CheckRPCSameServerStreaming = newMethodPairCheckFunc(checkRPCSameServerStreaming)
+
+func checkRPCSameServerStreaming(add addFunc, previousMethod protosource.Method, method protosource.Method) error {
+	if previousMethod.ServerStreaming() != method.ServerStreaming() {
+		previous := "streaming"
+		current := "unary"
+		if method.ServerStreaming() {
+			previous = "unary"
+			current = "streaming"
+		}
+		add(method, method.Location(), `RPC %q on service %q changed from server %s to server %s.`, method.Name(), method.Service().Name(), previous, current)
+	}
+	return nil
+}
+
+// CheckServiceNoDelete is a check function.
+var CheckServiceNoDelete = newFilePairCheckFunc(checkServiceNoDelete)
+
+func checkServiceNoDelete(add addFunc, previousFile protosource.File, file protosource.File) error {
+	previousNameToService, err := protosource.NameToService(previousFile)
+	if err != nil {
+		return err
+	}
+	nameToService, err := protosource.NameToService(file)
+	if err != nil {
+		return err
+	}
+	for previousName := range previousNameToService {
+		if _, ok := nameToService[previousName]; !ok {
+			add(file, nil, `Previously present service %q was deleted from file.`, previousName)
+		}
+	}
+	return nil
+}

vendor/github.com/bufbuild/buf/internal/buf/bufcheck/bufbreaking/internal/bufbreakingcheck/util.go

@@ -0,0 +1,262 @@
+// Copyright 2020-2021 Buf Technologies, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package bufbreakingcheck
+
+import (
+	"sort"
+	"strings"
+
+	"github.com/bufbuild/buf/internal/buf/bufanalysis"
+	"github.com/bufbuild/buf/internal/buf/bufcheck/internal"
+	"github.com/bufbuild/buf/internal/pkg/protosource"
+)
+
+// addFunc adds a FileAnnotation.
+//
+// Both the Descriptor and Location can be nil.
+type addFunc func(protosource.Descriptor, protosource.Location, string, ...interface{})
+
+func newFilesCheckFunc(
+	f func(addFunc, []protosource.File, []protosource.File) error,
+) func(string, internal.IgnoreFunc, []protosource.File, []protosource.File) ([]bufanalysis.FileAnnotation, error) {
+	return func(id string, ignoreFunc internal.IgnoreFunc, previousFiles []protosource.File, files []protosource.File) ([]bufanalysis.FileAnnotation, error) {
+		helper := internal.NewHelper(id, ignoreFunc)
+		if err := f(helper.AddFileAnnotationf, previousFiles, files); err != nil {
+			return nil, err
+		}
+		return helper.FileAnnotations(), nil
+	}
+}
+
+func newFilePairCheckFunc(
+	f func(addFunc, protosource.File, protosource.File) error,
+) func(string, internal.IgnoreFunc, []protosource.File, []protosource.File) ([]bufanalysis.FileAnnotation, error) {
+	return newFilesCheckFunc(
+		func(add addFunc, previousFiles []protosource.File, files []protosource.File) error {
+			previousFilePathToFile, err := protosource.FilePathToFile(previousFiles...)
+			if err != nil {
+				return err
+			}
+			filePathToFile, err := protosource.FilePathToFile(files...)
+			if err != nil {
+				return err
+			}
+			for previousFilePath, previousFile := range previousFilePathToFile {
+				if file, ok := filePathToFile[previousFilePath]; ok {
+					if err := f(add, previousFile, file); err != nil {
+						return err
+					}
+				}
+			}
+			return nil
+		},
+	)
+}
+
+func newEnumPairCheckFunc(
+	f func(addFunc, protosource.Enum, protosource.Enum) error,
+) func(string, internal.IgnoreFunc, []protosource.File, []protosource.File) ([]bufanalysis.FileAnnotation, error) {
+	return newFilesCheckFunc(
+		func(add addFunc, previousFiles []protosource.File, files []protosource.File) error {
+			previousFullNameToEnum, err := protosource.FullNameToEnum(previousFiles...)
+			if err != nil {
+				return err
+			}
+			fullNameToEnum, err := protosource.FullNameToEnum(files...)
+			if err != nil {
+				return err
+			}
+			for previousFullName, previousEnum := range previousFullNameToEnum {
+				if enum, ok := fullNameToEnum[previousFullName]; ok {
+					if err := f(add, previousEnum, enum); err != nil {
+						return err
+					}
+				}
+			}
+			return nil
+		},
+	)
+}
+
+// compares all the enums that are of the same number
+// map is from name to EnumValue for the given number
+func newEnumValuePairCheckFunc(
+	f func(addFunc, map[string]protosource.EnumValue, map[string]protosource.EnumValue) error,
+) func(string, internal.IgnoreFunc, []protosource.File, []protosource.File) ([]bufanalysis.FileAnnotation, error) {
+	return newEnumPairCheckFunc(
+		func(add addFunc, previousEnum protosource.Enum, enum protosource.Enum) error {
+			previousNumberToNameToEnumValue, err := protosource.NumberToNameToEnumValue(previousEnum)
+			if err != nil {
+				return err
+			}
+			numberToNameToEnumValue, err := protosource.NumberToNameToEnumValue(enum)
+			if err != nil {
+				return err
+			}
+			for previousNumber, previousNameToEnumValue := range previousNumberToNameToEnumValue {
+				if nameToEnumValue, ok := numberToNameToEnumValue[previousNumber]; ok {
+					if err := f(add, previousNameToEnumValue, nameToEnumValue); err != nil {
+						return err
+					}
+				}
+			}
+			return nil
+		},
+	)
+}
+
+func newMessagePairCheckFunc(
+	f func(addFunc, protosource.Message, protosource.Message) error,
+) func(string, internal.IgnoreFunc, []protosource.File, []protosource.File) ([]bufanalysis.FileAnnotation, error) {
+	return newFilesCheckFunc(
+		func(add addFunc, previousFiles []protosource.File, files []protosource.File) error {
+			previousFullNameToMessage, err := protosource.FullNameToMessage(previousFiles...)
+			if err != nil {
+				return err
+			}
+			fullNameToMessage, err := protosource.FullNameToMessage(files...)
+			if err != nil {
+				return err
+			}
+			for previousFullName, previousMessage := range previousFullNameToMessage {
+				if message, ok := fullNameToMessage[previousFullName]; ok {
+					if err := f(add, previousMessage, message); err != nil {
+						return err
+					}
+				}
+			}
+			return nil
+		},
+	)
+}
+
+func newFieldPairCheckFunc(
+	f func(addFunc, protosource.Field, protosource.Field) error,
+) func(string, internal.IgnoreFunc, []protosource.File, []protosource.File) ([]bufanalysis.FileAnnotation, error) {
+	return newMessagePairCheckFunc(
+		func(add addFunc, previousMessage protosource.Message, message protosource.Message) error {
+			previousNumberToField, err := protosource.NumberToMessageField(previousMessage)
+			if err != nil {
+				return err
+			}
+			numberToField, err := protosource.NumberToMessageField(message)
+			if err != nil {
+				return err
+			}
+			for previousNumber, previousField := range previousNumberToField {
+				if field, ok := numberToField[previousNumber]; ok {
+					if err := f(add, previousField, field); err != nil {
+						return err
+					}
+				}
+			}
+			return nil
+		},
+	)
+}
+
+func newServicePairCheckFunc(
+	f func(addFunc, protosource.Service, protosource.Service) error,
+) func(string, internal.IgnoreFunc, []protosource.File, []protosource.File) ([]bufanalysis.FileAnnotation, error) {
+	return newFilesCheckFunc(
+		func(add addFunc, previousFiles []protosource.File, files []protosource.File) error {
+			previousFullNameToService, err := protosource.FullNameToService(previousFiles...)
+			if err != nil {
+				return err
+			}
+			fullNameToService, err := protosource.FullNameToService(files...)
+			if err != nil {
+				return err
+			}
+			for previousFullName, previousService := range previousFullNameToService {
+				if service, ok := fullNameToService[previousFullName]; ok {
+					if err := f(add, previousService, service); err != nil {
+						return err
+					}
+				}
+			}
+			return nil
+		},
+	)
+}
+
+func newMethodPairCheckFunc(
+	f func(addFunc, protosource.Method, protosource.Method) error,
+) func(string, internal.IgnoreFunc, []protosource.File, []protosource.File) ([]bufanalysis.FileAnnotation, error) {
+	return newServicePairCheckFunc(
+		func(add addFunc, previousService protosource.Service, service protosource.Service) error {
+			previousNameToMethod, err := protosource.NameToMethod(previousService)
+			if err != nil {
+				return err
+			}
+			nameToMethod, err := protosource.NameToMethod(service)
+			if err != nil {
+				return err
+			}
+			for previousName, previousMethod := range previousNameToMethod {
+				if method, ok := nameToMethod[previousName]; ok {
+					if err := f(add, previousMethod, method); err != nil {
+						return err
+					}
+				}
+			}
+			return nil
+		},
+	)
+}
+
+func getDescriptorAndLocationForDeletedEnum(file protosource.File, previousNestedName string) (protosource.Descriptor, protosource.Location, error) {
+	if strings.Contains(previousNestedName, ".") {
+		nestedNameToMessage, err := protosource.NestedNameToMessage(file)
+		if err != nil {
+			return nil, nil, err
+		}
+		split := strings.Split(previousNestedName, ".")
+		for i := len(split) - 1; i > 0; i-- {
+			if message, ok := nestedNameToMessage[strings.Join(split[0:i], ".")]; ok {
+				return message, message.Location(), nil
+			}
+		}
+	}
+	return file, nil, nil
+}
+
+func getDescriptorAndLocationForDeletedMessage(file protosource.File, nestedNameToMessage map[string]protosource.Message, previousNestedName string) (protosource.Descriptor, protosource.Location) {
+	if strings.Contains(previousNestedName, ".") {
+		split := strings.Split(previousNestedName, ".")
+		for i := len(split) - 1; i > 0; i-- {
+			if message, ok := nestedNameToMessage[strings.Join(split[0:i], ".")]; ok {
+				return message, message.Location()
+			}
+		}
+	}
+	return file, nil
+}
+
+func getSortedEnumValueNames(nameToEnumValue map[string]protosource.EnumValue) []string {
+	names := make([]string, 0, len(nameToEnumValue))
+	for name := range nameToEnumValue {
+		names = append(names, name)
+	}
+	sort.Strings(names)
+	return names
+}
+
+func withBackupLocation(primary protosource.Location, secondary protosource.Location) protosource.Location {
+	if primary != nil {
+		return primary
+	}
+	return secondary
+}

vendor/github.com/bufbuild/buf/internal/buf/bufcheck/bufbreaking/internal/bufbreakingv1beta1/bufbreakingv1beta1.go

@@ -0,0 +1,28 @@
+// Copyright 2020-2021 Buf Technologies, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Package bufbreakingv1beta1 contains the VersionSpec for v1beta1.
+//
+// It uses bufbreakingfunc and bufbreakingbuild.
+package bufbreakingv1beta1
+
+import "github.com/bufbuild/buf/internal/buf/bufcheck/internal"
+
+// VersionSpec is the version specification for v1beta1.
+var VersionSpec = &internal.VersionSpec{
+	RuleBuilders:      v1beta1RuleBuilders,
+	DefaultCategories: v1beta1DefaultCategories,
+	AllCategories:     v1beta1AllCategories,
+	IDToCategories:    v1beta1IDToCategories,
+}

vendor/github.com/bufbuild/buf/internal/buf/bufcheck/bufbreaking/internal/bufbreakingv1beta1/vars.go

@@ -0,0 +1,325 @@
+// Copyright 2020-2021 Buf Technologies, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package bufbreakingv1beta1
+
+import (
+	"github.com/bufbuild/buf/internal/buf/bufcheck/bufbreaking/internal/bufbreakingbuild"
+	"github.com/bufbuild/buf/internal/buf/bufcheck/internal"
+)
+
+var (
+	// v1beta1RuleBuilders are the rule builders.
+	v1beta1RuleBuilders = []*internal.RuleBuilder{
+		bufbreakingbuild.EnumNoDeleteRuleBuilder,
+		bufbreakingbuild.EnumValueNoDeleteRuleBuilder,
+		bufbreakingbuild.EnumValueNoDeleteUnlessNameReservedRuleBuilder,
+		bufbreakingbuild.EnumValueNoDeleteUnlessNumberReservedRuleBuilder,
+		bufbreakingbuild.EnumValueSameNameRuleBuilder,
+		bufbreakingbuild.ExtensionMessageNoDeleteRuleBuilder,
+		bufbreakingbuild.FieldNoDeleteRuleBuilder,
+		bufbreakingbuild.FieldNoDeleteUnlessNameReservedRuleBuilder,
+		bufbreakingbuild.FieldNoDeleteUnlessNumberReservedRuleBuilder,
+		bufbreakingbuild.FieldSameCTypeRuleBuilder,
+		bufbreakingbuild.FieldSameJSONNameRuleBuilder,
+		bufbreakingbuild.FieldSameJSTypeRuleBuilder,
+		bufbreakingbuild.FieldSameLabelRuleBuilder,
+		bufbreakingbuild.FieldSameNameRuleBuilder,
+		bufbreakingbuild.FieldSameOneofRuleBuilder,
+		bufbreakingbuild.FieldSameTypeRuleBuilder,
+		bufbreakingbuild.FileNoDeleteRuleBuilder,
+		bufbreakingbuild.FileSameCsharpNamespaceRuleBuilder,
+		bufbreakingbuild.FileSameGoPackageRuleBuilder,
+		bufbreakingbuild.FileSameJavaMultipleFilesRuleBuilder,
+		bufbreakingbuild.FileSameJavaOuterClassnameRuleBuilder,
+		bufbreakingbuild.FileSameJavaPackageRuleBuilder,
+		bufbreakingbuild.FileSameJavaStringCheckUtf8RuleBuilder,
+		bufbreakingbuild.FileSameObjcClassPrefixRuleBuilder,
+		bufbreakingbuild.FileSamePackageRuleBuilder,
+		bufbreakingbuild.FileSamePhpClassPrefixRuleBuilder,
+		bufbreakingbuild.FileSamePhpMetadataNamespaceRuleBuilder,
+		bufbreakingbuild.FileSamePhpNamespaceRuleBuilder,
+		bufbreakingbuild.FileSameRubyPackageRuleBuilder,
+		bufbreakingbuild.FileSameSwiftPrefixRuleBuilder,
+		bufbreakingbuild.FileSameOptimizeForRuleBuilder,
+		bufbreakingbuild.FileSameCcGenericServicesRuleBuilder,
+		bufbreakingbuild.FileSameJavaGenericServicesRuleBuilder,
+		bufbreakingbuild.FileSamePyGenericServicesRuleBuilder,
+		bufbreakingbuild.FileSamePhpGenericServicesRuleBuilder,
+		bufbreakingbuild.FileSameCcEnableArenasRuleBuilder,
+		bufbreakingbuild.FileSameSyntaxRuleBuilder,
+		bufbreakingbuild.MessageNoDeleteRuleBuilder,
+		bufbreakingbuild.MessageNoRemoveStandardDescriptorAccessorRuleBuilder,
+		bufbreakingbuild.MessageSameMessageSetWireFormatRuleBuilder,
+		bufbreakingbuild.OneofNoDeleteRuleBuilder,
+		bufbreakingbuild.PackageEnumNoDeleteRuleBuilder,
+		bufbreakingbuild.PackageMessageNoDeleteRuleBuilder,
+		bufbreakingbuild.PackageNoDeleteRuleBuilder,
+		bufbreakingbuild.PackageServiceNoDeleteRuleBuilder,
+		bufbreakingbuild.ReservedEnumNoDeleteRuleBuilder,
+		bufbreakingbuild.ReservedMessageNoDeleteRuleBuilder,
+		bufbreakingbuild.RPCNoDeleteRuleBuilder,
+		bufbreakingbuild.RPCSameClientStreamingRuleBuilder,
+		bufbreakingbuild.RPCSameIdempotencyLevelRuleBuilder,
+		bufbreakingbuild.RPCSameRequestTypeRuleBuilder,
+		bufbreakingbuild.RPCSameResponseTypeRuleBuilder,
+		bufbreakingbuild.RPCSameServerStreamingRuleBuilder,
+		bufbreakingbuild.ServiceNoDeleteRuleBuilder,
+	}
+
+	// v1beta1DefaultCategories are the default categories.
+	v1beta1DefaultCategories = []string{
+		"FILE",
+	}
+	// v1beta1AllCategories are all categories.
+	v1beta1AllCategories = []string{
+		"FILE",
+		"PACKAGE",
+		"WIRE_JSON",
+		"WIRE",
+	}
+	// v1beta1IDToCategories are the revision 1 ID to categories.
+	v1beta1IDToCategories = map[string][]string{
+		"ENUM_NO_DELETE": {
+			"FILE",
+		},
+		"ENUM_VALUE_NO_DELETE": {
+			"FILE",
+			"PACKAGE",
+		},
+		"ENUM_VALUE_NO_DELETE_UNLESS_NAME_RESERVED": {
+			"WIRE_JSON",
+		},
+		"ENUM_VALUE_NO_DELETE_UNLESS_NUMBER_RESERVED": {
+			"WIRE_JSON",
+			"WIRE",
+		},
+		"ENUM_VALUE_SAME_NAME": {
+			"FILE",
+			"PACKAGE",
+			"WIRE_JSON",
+		},
+		"EXTENSION_MESSAGE_NO_DELETE": {
+			"FILE",
+			"PACKAGE",
+		},
+		"FIELD_NO_DELETE": {
+			"FILE",
+			"PACKAGE",
+		},
+		"FIELD_NO_DELETE_UNLESS_NAME_RESERVED": {
+			"WIRE_JSON",
+		},
+		"FIELD_NO_DELETE_UNLESS_NUMBER_RESERVED": {
+			"WIRE_JSON",
+			"WIRE",
+		},
+		"FIELD_SAME_CTYPE": {
+			"FILE",
+			"PACKAGE",
+		},
+		"FIELD_SAME_JSON_NAME": {
+			"FILE",
+			"PACKAGE",
+			"WIRE_JSON",
+		},
+		"FIELD_SAME_JSTYPE": {
+			"FILE",
+			"PACKAGE",
+		},
+		"FIELD_SAME_LABEL": {
+			"FILE",
+			"PACKAGE",
+			"WIRE_JSON",
+			"WIRE",
+		},
+		"FIELD_SAME_NAME": {
+			"FILE",
+			"PACKAGE",
+			"WIRE_JSON",
+		},
+		"FIELD_SAME_ONEOF": {
+			"FILE",
+			"PACKAGE",
+			"WIRE_JSON",
+			"WIRE",
+		},
+		"FIELD_SAME_TYPE": {
+			"FILE",
+			"PACKAGE",
+			"WIRE_JSON",
+			"WIRE",
+		},
+		"FILE_NO_DELETE": {
+			"FILE",
+		},
+		"FILE_SAME_CSHARP_NAMESPACE": {
+			"FILE",
+			"PACKAGE",
+		},
+		"FILE_SAME_GO_PACKAGE": {
+			"FILE",
+			"PACKAGE",
+		},
+		"FILE_SAME_JAVA_MULTIPLE_FILES": {
+			"FILE",
+			"PACKAGE",
+		},
+		"FILE_SAME_JAVA_OUTER_CLASSNAME": {
+			"FILE",
+			"PACKAGE",
+		},
+		"FILE_SAME_JAVA_PACKAGE": {
+			"FILE",
+			"PACKAGE",
+		},
+		"FILE_SAME_JAVA_STRING_CHECK_UTF8": {
+			"FILE",
+			"PACKAGE",
+		},
+		"FILE_SAME_OBJC_CLASS_PREFIX": {
+			"FILE",
+			"PACKAGE",
+		},
+		"FILE_SAME_PACKAGE": {
+			"FILE",
+		},
+		"FILE_SAME_PHP_CLASS_PREFIX": {
+			"FILE",
+			"PACKAGE",
+		},
+		"FILE_SAME_PHP_METADATA_NAMESPACE": {
+			"FILE",
+			"PACKAGE",
+		},
+		"FILE_SAME_PHP_NAMESPACE": {
+			"FILE",
+			"PACKAGE",
+		},
+		"FILE_SAME_RUBY_PACKAGE": {
+			"FILE",
+			"PACKAGE",
+		},
+		"FILE_SAME_SWIFT_PREFIX": {
+			"FILE",
+			"PACKAGE",
+		},
+		"FILE_SAME_OPTIMIZE_FOR": {
+			"FILE",
+			"PACKAGE",
+		},
+		"FILE_SAME_CC_GENERIC_SERVICES": {
+			"FILE",
+			"PACKAGE",
+		},
+		"FILE_SAME_JAVA_GENERIC_SERVICES": {
+			"FILE",
+			"PACKAGE",
+		},
+		"FILE_SAME_PY_GENERIC_SERVICES": {
+			"FILE",
+			"PACKAGE",
+		},
+		"FILE_SAME_PHP_GENERIC_SERVICES": {
+			"FILE",
+			"PACKAGE",
+		},
+		"FILE_SAME_CC_ENABLE_ARENAS": {
+			"FILE",
+			"PACKAGE",
+		},
+		"FILE_SAME_SYNTAX": {
+			"FILE",
+			"PACKAGE",
+		},
+		"MESSAGE_NO_DELETE": {
+			"FILE",
+		},
+		"MESSAGE_NO_REMOVE_STANDARD_DESCRIPTOR_ACCESSOR": {
+			"FILE",
+			"PACKAGE",
+		},
+		"MESSAGE_SAME_MESSAGE_SET_WIRE_FORMAT": {
+			"FILE",
+			"PACKAGE",
+			"WIRE_JSON",
+			"WIRE",
+		},
+		"ONEOF_NO_DELETE": {
+			"FILE",
+			"PACKAGE",
+		},
+		"PACKAGE_ENUM_NO_DELETE": {
+			"PACKAGE",
+		},
+		"PACKAGE_MESSAGE_NO_DELETE": {
+			"PACKAGE",
+		},
+		"PACKAGE_NO_DELETE": {
+			"PACKAGE",
+		},
+		"PACKAGE_SERVICE_NO_DELETE": {
+			"PACKAGE",
+		},
+		"RESERVED_ENUM_NO_DELETE": {
+			"FILE",
+			"PACKAGE",
+			"WIRE_JSON",
+			"WIRE",
+		},
+		"RESERVED_MESSAGE_NO_DELETE": {
+			"FILE",
+			"PACKAGE",
+			"WIRE_JSON",
+			"WIRE",
+		},
+		"RPC_NO_DELETE": {
+			"FILE",
+			"PACKAGE",
+		},
+		"RPC_SAME_CLIENT_STREAMING": {
+			"FILE",
+			"PACKAGE",
+			"WIRE_JSON",
+			"WIRE",
+		},
+		"RPC_SAME_IDEMPOTENCY_LEVEL": {
+			"FILE",
+			"PACKAGE",
+			"WIRE_JSON",
+			"WIRE",
+		},
+		"RPC_SAME_REQUEST_TYPE": {
+			"FILE",
+			"PACKAGE",
+			"WIRE_JSON",
+			"WIRE",
+		},
+		"RPC_SAME_RESPONSE_TYPE": {
+			"FILE",
+			"PACKAGE",
+			"WIRE_JSON",
+			"WIRE",
+		},
+		"RPC_SAME_SERVER_STREAMING": {
+			"FILE",
+			"PACKAGE",
+			"WIRE_JSON",
+			"WIRE",
+		},
+		"SERVICE_NO_DELETE": {
+			"FILE",
+		},
+	}
+)

vendor/github.com/bufbuild/buf/internal/buf/bufcheck/bufbreaking/rule.go

@@ -0,0 +1,51 @@
+// Copyright 2020-2021 Buf Technologies, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package bufbreaking
+
+import "github.com/bufbuild/buf/internal/buf/bufcheck/internal"
+
+type rule struct {
+	*internal.Rule
+}
+
+func newRule(internalRule *internal.Rule) *rule {
+	return &rule{Rule: internalRule}
+}
+
+func (c *rule) internalBreaking() *internal.Rule {
+	return c.Rule
+}
+
+func internalRulesToRules(internalRules []*internal.Rule) []Rule {
+	if internalRules == nil {
+		return nil
+	}
+	rules := make([]Rule, len(internalRules))
+	for i, internalRule := range internalRules {
+		rules[i] = newRule(internalRule)
+	}
+	return rules
+}
+
+func rulesToInternalRules(rules []Rule) []*internal.Rule {
+	if rules == nil {
+		return nil
+	}
+	internalRules := make([]*internal.Rule, len(rules))
+	for i, rule := range rules {
+		internalRules[i] = rule.internalBreaking()
+	}
+	return internalRules
+}