From e9ff180ad8e1571f2529043cb8af651c67764325 Mon Sep 17 00:00:00 2001
From: Eric Paris <eparis@redhat.com>
Date: Tue, 15 May 2018 11:05:55 -0400
Subject: [PATCH] commands/operator-sdk/cmd/new: initialize git on `new`

I love that `cargo new` from the rust project initializes git after it creates
my stock files. I don't have to run that command myself. Make `operator-sdk new`
just call git init.
---
 commands/operator-sdk/cmd/new.go | 38 +++++++++++++++++++++++---------
 doc/user-guide.md                |  4 +++-
 2 files changed, 31 insertions(+), 11 deletions(-)

diff --git a/commands/operator-sdk/cmd/new.go b/commands/operator-sdk/cmd/new.go
index 7dcf1f1106a..80b744a1944 100644
--- a/commands/operator-sdk/cmd/new.go
+++ b/commands/operator-sdk/cmd/new.go
@@ -53,6 +53,7 @@ generates a skeletal app-operator application in $GOPATH/src/github.com/example.
 	newCmd.MarkFlagRequired("api-version")
 	newCmd.Flags().StringVar(&kind, "kind", "", "Kubernetes CustomResourceDefintion kind. (e.g AppService)")
 	newCmd.MarkFlagRequired("kind")
+	newCmd.Flags().BoolVar(&skipGit, "skip-git-init", false, "Do not init the directory as a git repository")
 
 	return newCmd
 }
@@ -61,6 +62,7 @@ var (
 	apiVersion  string
 	kind        string
 	projectName string
+	skipGit     bool
 )
 
 const (
@@ -84,6 +86,7 @@ func newFunc(cmd *cobra.Command, args []string) {
 	}
 	pullDep()
 	generate.K8sCodegen(projectName)
+	initGit()
 }
 
 func parse(args []string) {
@@ -138,23 +141,38 @@ func verifyFlags() {
 	}
 }
 
-func pullDep() {
-	fmt.Fprintln(os.Stdout, "Run dep ensure ...")
-	dc := exec.Command(dep, ensureCmd, "-v")
+func mustGetwd() string {
+	wd, err := os.Getwd()
+	if err != nil {
+		cmdError.ExitWithError(cmdError.ExitError, fmt.Errorf("failed to determine the full path of the current directory: %v", err))
+	}
+	return wd
+}
+
+func execCmd(stdout *os.File, cmd string, args ...string) {
+	dc := exec.Command(cmd, args...)
 	dc.Dir = filepath.Join(mustGetwd(), projectName)
-	dc.Stdout = os.Stdout
+	dc.Stdout = stdout
 	dc.Stderr = os.Stderr
 	err := dc.Run()
 	if err != nil {
-		cmdError.ExitWithError(cmdError.ExitError, fmt.Errorf("failed to ensure dependencies: %v", err))
+		cmdError.ExitWithError(cmdError.ExitError, fmt.Errorf("failed to exec %s %#v: %v", cmd, args, err))
 	}
+}
+
+func pullDep() {
+	fmt.Fprintln(os.Stdout, "Run dep ensure ...")
+	execCmd(os.Stdout, dep, ensureCmd, "-v")
 	fmt.Fprintln(os.Stdout, "Run dep ensure done")
 }
 
-func mustGetwd() string {
-	wd, err := os.Getwd()
-	if err != nil {
-		cmdError.ExitWithError(cmdError.ExitError, fmt.Errorf("failed to determine the full path of the current directory: %v", err))
+func initGit() {
+	if skipGit {
+		return
 	}
-	return wd
+	fmt.Fprintln(os.Stdout, "Run git init ...")
+	execCmd(os.Stdout, "git", "init")
+	execCmd(os.Stdout, "git", "add", "--all")
+	execCmd(nil, "git", "commit", "-m", "INITIAL COMMIT")
+	fmt.Fprintln(os.Stdout, "Run git init done")
 }
diff --git a/doc/user-guide.md b/doc/user-guide.md
index 824a4274836..22fa575c392 100644
--- a/doc/user-guide.md
+++ b/doc/user-guide.md
@@ -5,6 +5,7 @@ This guide walks through an example of building a simple memcached-operator usin
 ## Prerequisites
 
 - [dep][dep_tool] version v0.4.1+.
+- [git][git_tool]
 - [go][go_tool] version v1.10+.
 - [docker][docker_tool] version 17.03+.
 - [kubectl][kubectl_tool] version v1.9.0+.
@@ -208,7 +209,8 @@ $ kubectl delete -f deploy/operator.yaml
 [memcached_handler]: ../example/memcached-operator/handler.go.tmpl
 [layout_doc]:./project_layout.md
 [dep_tool]:https://golang.github.io/dep/docs/installation.html
+[git_tool]:https://git-scm.com/downloads
 [go_tool]:https://golang.org/dl/
 [docker_tool]:https://docs.docker.com/install/
 [kubectl_tool]:https://kubernetes.io/docs/tasks/tools/install-kubectl/
-[minikube_tool]:https://github.com/kubernetes/minikube#installation
\ No newline at end of file
+[minikube_tool]:https://github.com/kubernetes/minikube#installation