[skip travis] add aggresive flag for install cmd

cmd/install.go

@@ -36,7 +36,8 @@ var availableHooks = [...]string{
 }
 
 var checkSumHook = "prepare-commit-msg"
-var force bool
+var force bool      // ignore sync information
+var aggressive bool // remove all files from .git/hooks
 
 var installCmd = &cobra.Command{
 	Use:   "install",
@@ -50,13 +51,14 @@ var appFs = afero.NewOsFs()
 
 func init() {
 	rootCmd.PersistentFlags().BoolVarP(&force, "force", "f", false, "reinstall hooks without checking config version")
+	rootCmd.PersistentFlags().BoolVarP(&aggressive, "aggresive", "a", false, "remove all hooks from .git/hooks dir and install lefthook hooks")
 	rootCmd.AddCommand(installCmd)
 }
 
 // InstallCmdExecutor execute basic configuration
 func InstallCmdExecutor(args []string, fs afero.Fs) {
 	if yes, _ := afero.Exists(fs, getConfigYamlPath()); yes {
-		if !isConfigSync(fs) || force {
+		if !isConfigSync(fs) || force || aggressive {
 			log.Println(au.Cyan("SYNCING"), au.Bold("lefthook.yml"))
 			DeleteGitHooks(fs)
 			AddGitHooks(fs)

cmd/uninstall.go

@@ -60,7 +60,7 @@ func DeleteGitHooks(fs afero.Fs) {
 	hooks, _ := afero.ReadDir(fs, hooksPath)
 	for _, file := range hooks {
 		hookFile := filepath.Join(hooksPath, file.Name())
-		if isLefthookFile(hookFile) {
+		if isLefthookFile(hookFile) || aggressive {
 			err := fs.Remove(hookFile)
 			if err == nil {
 				VerbosePrint(hookFile, "removed")