Add argument to print the current version

Author: maxcnunes

README.md

@@ -95,6 +95,7 @@ fi
 
 ## Options
 
+- **-v**: Show the current version
 - **-app**: Application name
 - **-output**: Output directory (default `.`)
 - **-yml**: Compose file path (default `docker-compose.yml`)

main.go

@@ -175,6 +175,7 @@ func saveToBash(services map[string]Service) (err error) {
 }
 
 func main() {
+	version := flag.Bool("v", false, "show the current version")
 	flag.StringVar(&appName, "app", "", "application name")
 	flag.StringVar(&composePath, "yml", "docker-compose.yml", "compose file path")
 	flag.StringVar(&outputPath, "output", ".", "output directory")
@@ -183,6 +184,11 @@ func main() {
 
 	flag.Parse()
 
+	if *version {
+		fmt.Println("compose2bash version 1.3.0")
+		return
+	}
+
 	if appName == "" {
 		fmt.Println("Missing app argument")
 		os.Exit(1)