optimize: adjust command priority for the config mode

cmd/add.go

@@ -24,6 +24,7 @@ var addCmd = &cobra.Command{
 	Use:   "add",
 	Short: "add license headers to files",
 	Long: `Common Command | Add license headers to files
+
 EXAMPLE: nwa add -l apache -c Lorain -m "**/*.go"`,
 	GroupID: _common,
 	Args:    cobra.MinimumNArgs(1),

cmd/check.go

@@ -24,7 +24,9 @@ var checkCmd = &cobra.Command{
 	Use:   "check",
 	Short: "check license headers of files",
 	Long: `Common Command | Check license headers of files
+
 EXAMPLE: nwa check -t tmpl.txt "src/**"
+
 NOTE: Do not use --mute (-m) flag with the command`,
 	GroupID: _common,
 	Args:    cobra.MinimumNArgs(1),

cmd/config.go

@@ -32,22 +32,26 @@ var configCmd = &cobra.Command{
 	Use:   "config",
 	Short: "edit the files according to the configuration file",
 	Long: `Config Command | Edit files according to the configuration file
-EXAMPLE: nwa config config.yaml -c check
-NOTE: This command only supports the command flag;
-You can only specify the path of the configuration file, and everything depends on the configuration file;
-If some configuration are not configured, the default configuration will be used;
-The command can be set on the command line
-SAMPLE CONFIGURATION FILE(YAML):
+
+EXAMPLE: nwa config -c check config.yaml
+
+NOTE: This command only supports the --command (-c) flag;
+You can only specify the path of the configuration file, and everything depends on the configuration file.
+If some configuration are not configured, the default configuration will be used.
+
+The command can also be set on the command line.
+command priority:
+1. --command (-c) flag
+2. value configured for cmd in the configuration file
+3. default value of cmd in the configuration file (add)
+
+SAMPLE CONFIGURATION FILE (YAML):
 nwa:
-  cmd: "add"
   holder: "RHINE LAB.LLC."
   year: "2077"
   license: "apache"
-  spdxids: ""
-  mute: false
-  path: ["server/**", "client/**", "pkg/**"]
-  skip: ["**.py"]
-  tmpl: "nwa.txt"
+  path: ["server/**/*.go", "client/**/*.go", "pkg/**"]
+  skip: ["**/*.py"]
 `,
 	GroupID: _config,
 	Args:    cobra.ExactArgs(1),
@@ -56,6 +60,15 @@ nwa:
 			cobra.CheckErr(err)
 		}
 
+		// command priority:
+		// 1. --command (-c) flag
+		// 2. value configured for `cmd` in the configuration file
+		// 3. default value of `cmd` in the configuration file (add)
+		operation := internal.Operation(defaultConfig.Nwa.Cmd)
+		if defaultConfigFlags.Command != "" {
+			operation = internal.Operation(defaultConfigFlags.Command)
+		}
+
 		slog.SetLogLoggerLevel(slog.LevelWarn)
 		if defaultConfig.Nwa.Verbose {
 			slog.SetLogLoggerLevel(slog.LevelInfo)
@@ -102,7 +115,7 @@ nwa:
 				cobra.CheckErr(err)
 			}
 			// determine files need to be added
-			internal.PrepareTasks(defaultConfig.Nwa.Path, renderedTmpl, internal.Operation(defaultConfig.Nwa.Cmd), defaultConfig.Nwa.Skip, rawTmpl, defaultConfig.Nwa.Fuzzy)
+			internal.PrepareTasks(defaultConfig.Nwa.Path, renderedTmpl, operation, defaultConfig.Nwa.Skip, rawTmpl, defaultConfig.Nwa.Fuzzy)
 		} else {
 			content, err := os.ReadFile(defaultConfig.Nwa.Tmpl)
 			if err != nil {
@@ -112,16 +125,24 @@ nwa:
 			if rawTmpl {
 				_, _ = fmt.Fprintln(buf)
 			}
-			internal.PrepareTasks(defaultConfig.Nwa.Path, buf.Bytes(), internal.Operation(defaultConfig.Nwa.Cmd), defaultConfig.Nwa.Skip, rawTmpl, defaultConfig.Nwa.Fuzzy)
+			internal.PrepareTasks(defaultConfig.Nwa.Path, buf.Bytes(), operation, defaultConfig.Nwa.Skip, rawTmpl, defaultConfig.Nwa.Fuzzy)
 		}
-		internal.ExecuteTasks(internal.Operation(defaultConfig.Nwa.Cmd), defaultConfig.Nwa.Mute)
+		internal.ExecuteTasks(operation, defaultConfig.Nwa.Mute)
 	},
 }
 
 func init() {
 	setupConfigCmd(configCmd)
 }
 
+type ConfigFlags struct {
+	Command string
+}
+
+var defaultConfigFlags = ConfigFlags{
+	Command: "", // empty if user not specified
+}
+
 type Config struct {
 	Nwa NwaConfig `yaml:"nwa"`
 }

cmd/remove.go

@@ -24,6 +24,7 @@ var removeCmd = &cobra.Command{
 	Use:   "remove",
 	Short: "remove license headers of files",
 	Long: `Common Command | Remove licenses headers of files
+
 EXAMPLE: nwa remove -i "Apache and MIT" "src/**/*.go"`,
 	GroupID: _common,
 	Args:    cobra.MinimumNArgs(1),

cmd/root.go

@@ -132,8 +132,9 @@ func setupCommonCmd(common *cobra.Command) {
 }
 
 func setupConfigCmd(config *cobra.Command) {
-	config.Flags().StringVarP(&defaultConfig.Nwa.Cmd, "command", "c", defaultConfig.Nwa.Cmd, "command")
 	rootCmd.AddCommand(config)
+
+	config.Flags().StringVarP(&defaultConfigFlags.Command, "command", "c", defaultConfigFlags.Command, "command to execute")
 }
 
 func executeCommonCmd(_ *cobra.Command, args []string, flags CommonFlags, operation internal.Operation) {

cmd/update.go

@@ -24,7 +24,9 @@ var updateCmd = &cobra.Command{
 	Use:   "update",
 	Short: "update license headers of files",
 	Long: `Common Command | Update license headers of files
+
 EXAMPLE: nwa update -l mit -c Anmory "**/*.py"
+
 NOTE: Update identifies the content before the first blank line as a license header;
 If your file does not meet the requirements, please use remove + add`,
 	GroupID: _common,