Flag version, bumped to v2

flag.go

@@ -19,17 +19,24 @@ func (i *arrayFlags) Set(value string) error {
 }
 
 var (
+	flagVersion    bool
 	flagIncludeAll bool
 	flagExcludeAll bool
 	flagExcept     arrayFlags
 )
 
 func init() {
+	flag.BoolVar(&flagVersion, "version", false, "Prints version and exits.")
 	flag.BoolVar(&flagIncludeAll, "include-all", false, "Split out all databases, with provided exceptions.")
 	flag.BoolVar(&flagExcludeAll, "exclude-all", false, "Split out no databases, with provided exceptions.")
 	flag.Var(&flagExcept, "except", "Exception to rule, can be used multiple times")
 	flag.Parse()
 
+	if flagVersion {
+		fmt.Println(VERSION)
+		os.Exit(0)
+	}
+
 	if flagIncludeAll && flagExcludeAll {
 		fmt.Println("-include-all and -exclude-all are mutually exclusive")
 		os.Exit(1)

main.go

@@ -9,7 +9,7 @@ import (
 	"slices"
 )
 
-const VERSION = "v1"
+const VERSION = "v2"
 const MAXLINE = 1048576
 
 type Db struct {