1 files changed, 73 insertions, 0 deletions
diff --git a/caddy/build.go b/caddy/build.go
new file mode 100644
index 000000000..864996d7f
--- /dev/null
+++ b/caddy/build.go
@@ -0,0 +1,73 @@
+// +build dev
+
+// build.go automates proper versioning of caddy binaries.
+// Use it like:   go run build.go
+// You can customize the build with the -goos, -goarch, and
+// -goarm CLI options:   go run build.go -goos=windows
+//
+// To get proper version information, this program must be
+// run from the directory of this file, and the source code
+// must be a working git repository, since it needs to know
+// if the source is in a clean state.
+//
+// This program is NOT required to build Caddy from source
+// since it is go-gettable. (You can run plain `go build`
+// in this directory to get a binary.) However, issues filed
+// without version information will likely be closed.
+package main
+
+import (
+	"flag"
+	"fmt"
+	"log"
+	"os"
+	"os/exec"
+	"path/filepath"
+
+	"github.com/caddyserver/buildworker"
+)
+
+var goos, goarch, goarm string
+
+func init() {
+	flag.StringVar(&goos, "goos", "", "GOOS for which to build")
+	flag.StringVar(&goarch, "goarch", "", "GOARCH for which to build")
+	flag.StringVar(&goarm, "goarm", "", "GOARM for which to build")
+}
+
+func main() {
+	flag.Parse()
+
+	gopath := os.Getenv("GOPATH")
+
+	pwd, err := os.Getwd()
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	ldflags, err := buildworker.MakeLdFlags(filepath.Join(pwd, ".."))
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	args := []string{"build", "-ldflags", ldflags}
+	args = append(args, "-asmflags", fmt.Sprintf("-trimpath=%s", gopath))
+	args = append(args, "-gcflags", fmt.Sprintf("-trimpath=%s", gopath))
+	cmd := exec.Command("go", args...)
+	cmd.Stderr = os.Stderr
+	cmd.Stdout = os.Stdout
+	cmd.Env = os.Environ()
+	for _, env := range []string{
+		"CGO_ENABLED=0",
+		"GOOS=" + goos,
+		"GOARCH=" + goarch,
+		"GOARM=" + goarm,
+	} {
+		cmd.Env = append(cmd.Env, env)
+	}
+
+	err = cmd.Run()
+	if err != nil {
+		log.Fatal(err)
+	}
+}