Add -v flag to print current version

main.go

@@ -13,6 +13,7 @@ import (
 const VERSION = "0.1.0"
 
 var options struct {
+	Version bool   `short:"v" description:"Print version"`
 	Debug   bool   `short:"d" description:"Enable debugging mode" default:"false"`
 	Url     string `long:"url" description:"Database connection string"`
 	Host    string `long:"host" description:"Server hostname or IP" default:"localhost"`
@@ -72,6 +73,11 @@ func initOptions() {
 	if err != nil {
 		os.Exit(1)
 	}
+
+	if options.Version {
+		fmt.Printf("pgweb v%s\n", VERSION)
+		os.Exit(1)
+	}
 }
 
 func startServer() {