2017-06-25 01:31:36 +02:00
|
|
|
// Copyright 2017 Google Inc. All Rights Reserved.
|
|
|
|
|
//
|
|
|
|
|
// 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 contains an App Engine that serves vanity URLs for a git repo.
|
|
|
|
|
package main
|
|
|
|
|
|
|
|
|
|
import (
|
|
|
|
|
"fmt"
|
|
|
|
|
"html/template"
|
|
|
|
|
"log"
|
|
|
|
|
"net/http"
|
|
|
|
|
"os"
|
|
|
|
|
"strings"
|
2017-06-26 01:49:28 +02:00
|
|
|
|
|
|
|
|
"google.golang.org/appengine"
|
|
|
|
|
|
|
|
|
|
"io/ioutil"
|
|
|
|
|
|
|
|
|
|
"gopkg.in/yaml.v2"
|
2017-06-25 01:31:36 +02:00
|
|
|
)
|
|
|
|
|
|
2017-06-26 01:49:28 +02:00
|
|
|
type ypkg struct {
|
|
|
|
|
Repo string `yaml:"repo,omitempty"`
|
|
|
|
|
Display string `yaml:"display,omitempty"`
|
2017-06-25 01:31:36 +02:00
|
|
|
}
|
|
|
|
|
|
2017-06-26 01:49:28 +02:00
|
|
|
var m map[string]ypkg
|
2017-06-25 01:31:36 +02:00
|
|
|
|
|
|
|
|
func init() {
|
2017-06-26 01:49:28 +02:00
|
|
|
vanity, err := ioutil.ReadFile("./vanity.yaml")
|
|
|
|
|
if err != nil {
|
|
|
|
|
log.Fatal(err)
|
2017-06-25 01:31:36 +02:00
|
|
|
}
|
2017-06-26 01:49:28 +02:00
|
|
|
if err := yaml.Unmarshal(vanity, &m); err != nil {
|
|
|
|
|
log.Fatal(err)
|
|
|
|
|
}
|
|
|
|
|
for _, e := range m {
|
|
|
|
|
if e.Display != "" {
|
|
|
|
|
continue
|
|
|
|
|
}
|
|
|
|
|
if strings.Contains(e.Repo, "github.com") {
|
|
|
|
|
e.Display = fmt.Sprintf("%v %v/tree/master{/dir} %v/blob/master{/dir}/{file}#L{line}", e.Repo, e.Repo, e.Repo)
|
|
|
|
|
}
|
2017-06-25 01:31:36 +02:00
|
|
|
}
|
|
|
|
|
http.HandleFunc("/", handle)
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
func handle(w http.ResponseWriter, r *http.Request) {
|
|
|
|
|
current := r.URL.Path
|
2017-06-26 01:49:28 +02:00
|
|
|
p, ok := m[current]
|
|
|
|
|
if !ok {
|
|
|
|
|
http.NotFound(w, r)
|
|
|
|
|
return
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
host := appengine.DefaultVersionHostname(appengine.NewContext(r))
|
|
|
|
|
if err := vanityTmpl.Execute(w, struct {
|
|
|
|
|
Import string
|
|
|
|
|
Repo string
|
|
|
|
|
Display string
|
|
|
|
|
}{
|
|
|
|
|
Import: host + current,
|
|
|
|
|
Repo: p.Repo,
|
|
|
|
|
Display: p.Display,
|
2017-06-25 01:31:36 +02:00
|
|
|
}); err != nil {
|
|
|
|
|
http.Error(w, "cannot render the page", http.StatusInternalServerError)
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
var vanityTmpl, _ = template.New("vanity").Parse(`<!DOCTYPE html>
|
|
|
|
|
<html>
|
|
|
|
|
<head>
|
|
|
|
|
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
|
|
|
|
|
<meta name="go-import" content="{{.Import}} git {{.Repo}}">
|
|
|
|
|
<meta name="go-source" content="{{.Import}} {{.Display}}">
|
2017-06-26 01:49:28 +02:00
|
|
|
<meta http-equiv="refresh" content="0; url=https://godoc.org/{{.Import}}">
|
2017-06-25 01:31:36 +02:00
|
|
|
</head>
|
|
|
|
|
<body>
|
2017-06-26 01:55:56 +02:00
|
|
|
Nothing to see here; <a href="https://godoc.org/{{.Import}}">see the package on godoc</a>.
|
2017-06-25 01:31:36 +02:00
|
|
|
</body>
|
|
|
|
|
</html>`)
|
|
|
|
|
|
|
|
|
|
func mustLoad(key string, value *string) {
|
|
|
|
|
v := os.Getenv(key)
|
|
|
|
|
if v == "" {
|
|
|
|
|
log.Fatalf("missing %v env variable", key)
|
|
|
|
|
}
|
|
|
|
|
*value = v
|
|
|
|
|
}
|
