🆕 Add purge command

Author: tadashi-aikawa

Gopkg.lock

@@ -56,3 +56,7 @@
 [[constraint]]
   name = "github.com/briandowns/spinner"
   version = "1.2.0"
+
+[[constraint]]
+  branch = "master"
+  name = "github.com/mattn/go-pipeline"

Gopkg.toml

@@ -13,6 +13,7 @@ Usage:
   gowl edit [-e=<editor> | --editor=<editor>]
   gowl web
   gowl list
+  gowl purge
   gowl -h | --help
   gowl -V | --version
 
@@ -28,10 +29,11 @@ Options:
 
 // Args created by CLI args
 type Args struct {
-	CmdGet  bool `docopt:"get"`
-	CmdEdit bool `docopt:"edit"`
-	CmdWeb  bool `docopt:"web"`
-	CmdList bool `docopt:"list"`
+	CmdGet   bool `docopt:"get"`
+	CmdEdit  bool `docopt:"edit"`
+	CmdWeb   bool `docopt:"web"`
+	CmdList  bool `docopt:"list"`
+	CmdPurge bool `docopt:"purge"`
 
 	Editor          string `docopt:"--editor"`
 	Force           bool   `docopt:"--force"`

args.go

@@ -9,6 +9,7 @@ import (
 	"time"
 
 	"github.com/briandowns/spinner"
+	"github.com/mattn/go-pipeline"
 	"github.com/pkg/errors"
 	survey "gopkg.in/AlecAivazis/survey.v1"
 )
@@ -231,6 +232,41 @@ func CmdEdit(handler IHandler, root string, editor string) error {
 	return nil
 }
 
+// CmdPurge purges...
+func CmdPurge(handler IHandler, root string) error {
+	selection, err := selectLocalRepository(root)
+	if selection == "" {
+		return nil
+	}
+	if err != nil {
+		return errors.Wrap(err, "Fail to select a repository.")
+	}
+
+	os.Chdir(selection)
+
+	branches, err := pipeline.Output(
+		[]string{"git", "branch", "--merged", "master"},
+		[]string{"grep", "-vE", "'^\\*|master$|develop$'"},
+	)
+
+	if string(branches) == "" {
+		print("No branches to purge.")
+		return nil
+	}
+
+	print("Purge branches...\n" + string(branches))
+
+	if _, err := pipeline.Output(
+		[]string{"git", "branch", "--merged", "master"},
+		[]string{"grep", "-vE", "'^\\*|master$|develop$'"},
+		[]string{"xargs", "git", "branch", "-d"},
+	); err != nil {
+		return errors.Wrap(err, fmt.Sprintf("Fail to purge repositories %v", selection))
+	}
+
+	return nil
+}
+
 // CmdWeb executes `web`
 func CmdWeb(handler IHandler, root string, browser string) error {
 	selection, err := selectLocalRepository(root)

command.go

@@ -64,5 +64,9 @@ func main() {
 		if err := CmdList(handler, getRoot(config)); err != nil {
 			log.Fatal(errors.Wrap(err, "Fail to command `list`"))
 		}
+	case args.CmdPurge:
+		if err := CmdPurge(handler, getRoot(config)); err != nil {
+			log.Fatal(errors.Wrap(err, "Fail to command `purge`"))
+		}
 	}
 }