From 587a7db4709dc4daafa186579bd9a0ab94b9faa3 Mon Sep 17 00:00:00 2001
From: Neven Miculinic <neven.miculinic@gmail.com>
Date: Thu, 28 Mar 2019 16:05:43 +0100
Subject: [PATCH] Added initial binary wg-quick equivalent

---
 .gitlab-ci.yml       | 20 +++++++++----
 cmd/wg-quick/main.go | 68 ++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 83 insertions(+), 5 deletions(-)
 create mode 100644 cmd/wg-quick/main.go

diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index b29623e..f41cdd9 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -3,13 +3,23 @@ stages:
 go_build:
   stage: build
   image: golang:1.12
-  cache:
-    key: ${CI_COMMIT_REF_SLUG}
-    paths:
-      - .cache
+  variables:
+    CGO_ENABLED: 0
   script:
     - mkdir -p .cache/cache
     - mkdir -p .cache/go
     - export GOCACHE="$CI_PROJECT_DIR/.cache/cache"
     - export GOPATH="$CI_PROJECT_DIR/.cache/go"
-    - go test ./...
+    - go test -race ./...
+    - mkdir -p build || true
+    - go env
+    - GOOS=linux GOARCH=amd64 go build -a -ldflags '-extldflags "-static"' -o build/${CI_PROJECT_NAME}-amd64 ./cmd/wg-quick
+    - GOOS=linux GOARCH=arm GOARM=7 go build -a -ldflags '-extldflags "-static"' -o build/${CI_PROJECT_NAME}-arm32v7 ./cmd/wg-quick
+    - GOOS=linux GOARCH=arm64 go build -a -ldflags '-extldflags "-static"' -o build/${CI_PROJECT_NAME}-arm64v8 ./cmd/wg-quick
+  artifacts:
+    paths:
+      - build/
+  cache:
+    key: ${CI_COMMIT_REF_SLUG}
+    paths:
+      - .cache
diff --git a/cmd/wg-quick/main.go b/cmd/wg-quick/main.go
new file mode 100644
index 0000000..4a63e2f
--- /dev/null
+++ b/cmd/wg-quick/main.go
@@ -0,0 +1,68 @@
+package main
+
+import (
+	"flag"
+	"fmt"
+	"github.com/nmiculinic/wg-quick-go"
+	"github.com/sirupsen/logrus"
+	"io/ioutil"
+	"os"
+)
+
+func printHelp() {
+	fmt.Println("wg-quick [-iface=wg0] [ up | down ] config_file")
+	os.Exit(1)
+}
+
+func main() {
+	flag.String("iface", "", "interface")
+	flag.Parse()
+	args := flag.Args()
+	if len(args) != 2 {
+		printHelp()
+	}
+
+	iface := flag.Lookup("iface").Value.String()
+	log := logrus.WithField("iface", iface)
+
+	cfg := args[1]
+
+	_, err := os.Stat(cfg)
+	switch {
+	case err == nil:
+	case os.IsNotExist(err):
+		if iface == "" {
+			iface = cfg
+			log = logrus.WithField("iface", iface)
+		}
+		cfg = "/etc/wireguard/" + cfg + ".conf"
+		_, err = os.Stat(cfg)
+		if err != nil {
+			log.WithError(err).Errorln("cannot find config file")
+			printHelp()
+		}
+	default:
+		logrus.WithError(err).Errorln("error while reading config file")
+		printHelp()
+	}
+
+	b, err := ioutil.ReadFile(cfg)
+	if err != nil {
+		logrus.WithError(err).Fatalln("cannot read file")
+	}
+	c := &wgquick.Config{}
+	if err := c.UnmarshalText(b); err != nil {
+		logrus.WithError(err).Fatalln("cannot parse config file")
+	}
+
+	switch args[0] {
+	case "up":
+		if err := wgquick.Up(c, iface, log); err != nil {
+			logrus.WithError(err).Errorln("cannot up interface")
+		}
+	case "down":
+		if err := wgquick.Down(c, iface, log); err != nil {
+			logrus.WithError(err).Errorln("cannot down interface")
+		}
+	}
+}