cmd/go-contrib-init: add start of new tool to help new Go contributors
Updates golang/go#17802
Change-Id: Ieb4be41039d414a3ba6766d98ed95a6154f964f4
Reviewed-on: https://go-review.googlesource.com/45078
Reviewed-by: Steve Francia <spf@golang.org>
diff --git a/cmd/go-contrib-init/contrib.go b/cmd/go-contrib-init/contrib.go
new file mode 100644
index 0000000..6f304ad
--- /dev/null
+++ b/cmd/go-contrib-init/contrib.go
@@ -0,0 +1,83 @@
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// The go-contrib-init command helps new Go contributors get their development
+// environment set up for the Go contribution process.
+//
+// It aims to be a complement or alternative to https://golang.org/doc/contribute.html.
+package main
+
+import (
+ "bytes"
+ "flag"
+ "io/ioutil"
+ "log"
+ "os"
+ "path/filepath"
+ "runtime"
+ "strings"
+)
+
+var repo = flag.String("repo", "go", "Which go repo you want to contribute to. Use \"go\" for the core, or e.g. \"net\" for golang.org/x/net/*")
+
+func main() {
+ log.SetFlags(0)
+ flag.Parse()
+
+ checkCLA()
+ checkGoroot()
+ checkWorkingDir()
+}
+
+func checkCLA() {
+ slurp, err := ioutil.ReadFile(cookiesFile())
+ if err != nil && !os.IsNotExist(err) {
+ log.Fatal(err)
+ }
+ if bytes.Contains(slurp, []byte("go.googlesource.com")) &&
+ bytes.Contains(slurp, []byte("go-review.googlesource.com")) {
+ // Probably good.
+ return
+ }
+ log.Fatal("Your .gitcookies file isn't configured.\n" +
+ "Next steps:\n" +
+ " * Submit a CLA (https://golang.org/doc/contribute.html#cla) if not done\n" +
+ " * Go to https://go.googlesource.com/ and click \"Generate Password\" at the top,\n" +
+ " then follow instructions.\n" +
+ " * Run go-contrib-init again.\n")
+}
+
+func cookiesFile() string {
+ if runtime.GOOS == "windows" {
+ return filepath.Join(os.Getenv("USERPROFILE"), ".gitcookies")
+ }
+ return filepath.Join(os.Getenv("HOME"), ".gitcookies")
+}
+
+func checkGoroot() {
+ v := os.Getenv("GOROOT")
+ if v == "" {
+ return
+ }
+ if *repo == "go" {
+ if strings.HasPrefix(v, "/usr/") {
+ log.Fatalf("Your GOROOT environment variable is set to %q\n"+
+ "This is almost certainly not what you want. Either unset\n"+
+ "your GOROOT or set it to the path of your development version\n"+
+ "of Go.", v)
+ }
+ slurp, err := ioutil.ReadFile(filepath.Join(v, "VERSION"))
+ if err == nil {
+ slurp = bytes.TrimSpace(slurp)
+ log.Fatalf("Your GOROOT environment variable is set to %q\n"+
+ "But that path is to a binary release of Go, with VERSION file %q.\n"+
+ "You should hack on Go in a fresh checkout of Go. Fix or unset your GOROOT.\n",
+ v, slurp)
+ }
+ }
+}
+
+func checkWorkingDir() {
+ // TODO
+}
