feat: add validate-config command (#69)

.golangci.yml

@@ -50,3 +50,4 @@ linters:
     - depguard
     - interfacebloat
     - perfsprint
+    - mnd

cmd/cosmos-transactions-bot.go

@@ -25,7 +25,7 @@ func (fs *OsFS) Create(path string) (fs.File, error) {
 	return os.Create(path)
 }
 
-func Execute(configPath string) {
+func ExecuteMain(configPath string) {
 	filesystem := &OsFS{}
 	config, err := configPkg.GetConfig(configPath, filesystem)
 	if err != nil {
@@ -41,15 +41,41 @@ func Execute(configPath string) {
 	app.Start()
 }
 
+func ExecuteValidateConfig(configPath string) {
+	filesystem := &OsFS{}
+
+	config, err := configPkg.GetConfig(configPath, filesystem)
+	if err != nil {
+		loggerPkg.GetDefaultLogger().Fatal().Err(err).Msg("Could not load config!")
+	}
+
+	if warnings := config.DisplayWarnings(); len(warnings) > 0 {
+		for _, warning := range warnings {
+			warning.Log(loggerPkg.GetDefaultLogger())
+		}
+	}
+
+	loggerPkg.GetDefaultLogger().Info().Msg("Provided config is valid.")
+}
+
 func main() {
 	var ConfigPath string
 
 	rootCmd := &cobra.Command{
-		Use:     "cosmos-transactions-bot",
+		Use:     "cosmos-transactions-bot --config [config path]",
 		Long:    "Get notified on new transactions on different cosmos-sdk chains.",
 		Version: version,
 		Run: func(cmd *cobra.Command, args []string) {
-			Execute(ConfigPath)
+			ExecuteMain(ConfigPath)
+		},
+	}
+
+	validateConfigCmd := &cobra.Command{
+		Use:     "validate-config --config [config path]",
+		Long:    "Validate config.",
+		Version: version,
+		Run: func(cmd *cobra.Command, args []string) {
+			ExecuteValidateConfig(ConfigPath)
 		},
 	}
 
@@ -58,6 +84,13 @@ func main() {
 		loggerPkg.GetDefaultLogger().Fatal().Err(err).Msg("Could not set flag as required")
 	}
 
+	validateConfigCmd.PersistentFlags().StringVar(&ConfigPath, "config", "", "Config file path")
+	if err := validateConfigCmd.MarkPersistentFlagRequired("config"); err != nil {
+		loggerPkg.GetDefaultLogger().Fatal().Err(err).Msg("Could not set flag as required")
+	}
+
+	rootCmd.AddCommand(validateConfigCmd)
+
 	if err := rootCmd.Execute(); err != nil {
 		loggerPkg.GetDefaultLogger().Fatal().Err(err).Msg("Could not start application")
 	}