Simple no auth git-http-backend handler in go - linux

git-http-backend.go

package main

import (
	"bytes"
	"fmt"
	"log"
	"net/http"
	"net/http/cgi"
	"net/http/httputil"
)

//modified from https://github.com/pasela/git-cgi-server

var (
	git_http_backend_bin = "/usr/lib/git-core/git-http-backend"
	git_repos            = "/etc/git/repos"
)

func gitBackend(w http.ResponseWriter, r *http.Request) {
	env := []string{
		fmt.Sprintf("GIT_PROJECT_ROOT=%s", git_repos),
		"GIT_HTTP_EXPORT_ALL=",
		"REMOTE_USER=githttp",
	}
	
	// debug git request
	requestDump, err := httputil.DumpRequest(r, true)
	if err != nil {
		fmt.Println(err)
	}
	fmt.Println(string(requestDump))

	var stdErr bytes.Buffer
	handler := &cgi.Handler{
		Path:   git_http_backend_bin,
		Root:   "/repos",
		Env:    env,
		Stderr: &stdErr,
	}
	handler.ServeHTTP(w, r)

	if stdErr.Len() > 0 {
		log.Println("[backend]", stdErr.String())
	}
}

func Run() {

	listen := ":3000"
	mux := http.NewServeMux()
	mux.HandleFunc("/repos/", gitBackend)

	log.Printf("Listening %s\n", listen)
	httpServer := &http.Server{
		Addr:    listen,
		Handler: mux,
	}

	log.Fatal(httpServer.ListenAndServe())
}

func main() {
	Run()
}