feat(client-go): add git endpoint

Author: Joshua Anderson

client-go/cmd/git.go

@@ -0,0 +1,12 @@
+package cmd
+
+// GitRemote creates a git remote for a deis app.
+func GitRemote(appID, remote string) error {
+	c, appID, err := load(appID)
+
+	if err != nil {
+		return err
+	}
+
+	return c.CreateRemote(remote, appID)
+}

client-go/controller/client/git.go

@@ -3,18 +3,31 @@ package client
 import (
 	"errors"
 	"fmt"
+	"io/ioutil"
 	"os/exec"
 	"strings"
 )
 
 // CreateRemote adds a git remote in the current directory.
 func (c Client) CreateRemote(remote, appID string) error {
-	_, err := exec.Command("git", "remote", "add", remote, c.RemoteURL(appID)).Output()
+	cmd := exec.Command("git", "remote", "add", remote, c.RemoteURL(appID))
+	stderr, err := cmd.StderrPipe()
 
 	if err != nil {
 		return err
 	}
 
+	if err = cmd.Start(); err != nil {
+		return err
+	}
+
+	output, _ := ioutil.ReadAll(stderr)
+	fmt.Print(string(output))
+
+	if err := cmd.Wait(); err != nil {
+		return err
+	}
+
 	fmt.Printf("Git remote %s added\n", remote)
 
 	return nil

client-go/deis.go

@@ -91,6 +91,8 @@ Use 'git push deis master' to deploy to an application.
 		err = parser.Builds(argv)
 	case "keys":
 		err = parser.Keys(argv)
+	case "git":
+		err = parser.Git(argv)
 	case "users":
 		err = parser.Users(argv)
 	case "help":

client-go/parser/git.go

@@ -0,0 +1,56 @@
+package parser
+
+import (
+	"errors"
+	"fmt"
+
+	"github.com/deis/deis/client-go/cmd"
+	docopt "github.com/docopt/docopt-go"
+)
+
+// Git routes git commands to their specific function.
+func Git(argv []string) error {
+	usage := `
+Valid commands for git:
+
+git:remote          Adds git remote of application to repository
+
+Use 'deis help [command]' to learn more.
+`
+	if len(argv) < 2 {
+		return errors.New("'deis git' is not a valid command, try 'deis help git'")
+	}
+
+	switch argv[1] {
+	case "remote":
+		return gitRemote(combineCommand(argv))
+	case "--help":
+		fmt.Print(usage)
+		return nil
+	default:
+		PrintUsage()
+		return nil
+	}
+}
+
+func gitRemote(argv []string) error {
+	usage := `
+Adds git remote of application to repository
+
+Usage: deis git:remote [options]
+
+Options:
+  -a --app=<app>
+    the uniquely identifiable name for the application.
+  -r --remote=REMOTE
+    name of remote to create. [default: deis]
+`
+
+	args, err := docopt.Parse(usage, argv, true, "", false, true)
+
+	if err != nil {
+		return err
+	}
+
+	return cmd.GitRemote(safeGetValue(args, "--app"), args["--remote"].(string))
+}