fix: command argument count validations (#694)

cmd/add.go

@@ -30,7 +30,7 @@ func newAddCmd(opts *lefthook.Options) *cobra.Command {
  Long: addDoc,
  Example: "lefthook add pre-commit",
  ValidArgsFunction: addHookCompletions,
- Args: cobra.MinimumNArgs(1),
+ Args: cobra.ExactArgs(1),
  RunE: func(_cmd *cobra.Command, hooks []string) error {
  args.Hook = hooks[0]
  return lefthook.Add(opts, &args)

cmd/dump.go

@@ -13,6 +13,7 @@ func newDumpCmd(opts *lefthook.Options) *cobra.Command {
  Short: "Prints config merged from all extensions (in YAML format by default)",
  Example: "lefthook dump",
  ValidArgsFunction: cobra.NoFileCompletions,
+ Args: cobra.NoArgs,
  Run: func(cmd *cobra.Command, args []string) {
  lefthook.Dump(opts, dumpArgs)
  },

cmd/install.go

@@ -14,6 +14,7 @@ func newInstallCmd(opts *lefthook.Options) *cobra.Command {
  Use: "install",
  Short: "Write basic configuration file in your project repository. Or initialize existed config",
  ValidArgsFunction: cobra.NoFileCompletions,
+ Args: cobra.NoArgs,
  RunE: func(cmd *cobra.Command, _args []string) error {
  return lefthook.Install(opts, force)
  },

cmd/uninstall.go

@@ -13,6 +13,7 @@ func newUninstallCmd(opts *lefthook.Options) *cobra.Command {
  Use: "uninstall",
  Short: "Revert install command",
  ValidArgsFunction: cobra.NoFileCompletions,
+ Args: cobra.NoArgs,
  RunE: func(cmd *cobra.Command, _args []string) error {
  return lefthook.Uninstall(opts, &args)
  },

cmd/version.go

@@ -15,6 +15,7 @@ func newVersionCmd(_opts *lefthook.Options) *cobra.Command {
  Use: "version",
  Short: "Show lefthook version",
  ValidArgsFunction: cobra.NoFileCompletions,
+ Args: cobra.NoArgs,
  Run: func(cmd *cobra.Command, args []string) {
  log.Println(version.Version(verbose))
  },