feat: add command to verify config file

Author: muthukrishnan24

cmd/callback.go

@@ -76,3 +76,25 @@ func configCreateCallback(ctx *cli.Context) error {
 	}
 	return nil
 }
+
+func verifyCallback(ctx *cli.Context) error {
+	confFlag := ctx.String("config")
+
+	confPath, useDefault, err := config.GetConfigPath(confFlag)
+	if err != nil {
+		return cli.Exit(err, ErrExitCode)
+	}
+
+	if useDefault {
+		fmt.Println("no config file found, default config will be used")
+		return nil
+	}
+
+	_, _, err = getLinter(confPath)
+	if err != nil {
+		return cli.Exit(err, ErrExitCode)
+	}
+
+	fmt.Printf("%s config is valid\n", confPath)
+	return nil
+}

cmd/cmd.go

@@ -79,6 +79,20 @@ func New(versionNo, commitHash, builtTime string) *cli.App {
 		},
 	}
 
+	verifyCmd := &cli.Command{
+		Name:  "verify",
+		Usage: "verifies commitlint config",
+		Flags: []cli.Flag{
+			&cli.StringFlag{
+				Name:    "config",
+				Aliases: []string{"c", "conf"},
+				Value:   "",
+				Usage:   "optional config file `conf.yaml`",
+			},
+		},
+		Action: verifyCallback,
+	}
+
 	return &cli.App{
 		Name:   "commitlint",
 		Usage:  "linter for conventional commits",
@@ -87,6 +101,7 @@ func New(versionNo, commitHash, builtTime string) *cli.App {
 			createCmd,
 			initCmd,
 			lintCmd,
+			verifyCmd,
 			versionCmd,
 		},
 	}