fix: Exit after printing version or help message (#32)

* fix: Exit after printing version or help message

* Update .gitignore

Author: edgarrmondragon

.gitignore

@@ -23,3 +23,31 @@ target-jsonl-blob
 # vendor/
 
 dist/
+
+# General
+.DS_Store
+.AppleDouble
+.LSOverride
+
+# Icon must end with two \r
+Icon
+
+
+# Thumbnails
+._*
+
+# Files that might appear in the root of a volume
+.DocumentRevisions-V100
+.fseventsd
+.Spotlight-V100
+.TemporaryItems
+.Trashes
+.VolumeIcon.icns
+.com.apple.timemachine.donotpresent
+
+# Directories potentially created on remote AFP share
+.AppleDB
+.AppleDesktop
+Network Trash Folder
+Temporary Items
+.apdisk

cmd/root.go

@@ -43,12 +43,22 @@ var rootCmd = &cobra.Command{
 
 // Execute adds all child commands to the root command and sets flags appropriately.
 // This is called by main.main(). It only needs to happen once to the rootCmd.
-func Execute() {
+func Execute(version string) {
+	rootCmd.Version = version
+
 	err := rootCmd.Execute()
 	if err != nil {
 		os.Exit(1)
 	}
 
+	if printVersion, _ := rootCmd.Flags().GetBool("version"); printVersion {
+		os.Exit(0)
+	}
+
+	if printHelp, _ := rootCmd.Flags().GetBool("help"); printHelp {
+		os.Exit(0)
+	}
+
 	if err := target.ReadConfig(configFile, &config); err != nil {
 		log.Fatalf("unable to decode into struct, %v", err)
 	}
@@ -70,6 +80,9 @@ func Execute() {
 
 func init() {
 	rootCmd.PersistentFlags().StringVarP(&configFile, "config", "c", "", "Config file")
-	rootCmd.PersistentFlags().StringVarP(&inputFile, "input", "i", "", "Input file")
+	rootCmd.MarkPersistentFlagFilename("config", "json")
 	rootCmd.MarkPersistentFlagRequired("config")
+
+	rootCmd.PersistentFlags().StringVarP(&inputFile, "input", "i", "", "Input file")
+	rootCmd.MarkPersistentFlagFilename("input")
 }

main.go

@@ -17,6 +17,9 @@ package main
 
 import "meltano.com/target-jsonl-blob/cmd"
 
+// goreleaser injected values
+var version = "dev"
+
 func main() {
-	cmd.Execute()
+	cmd.Execute(version)
 }