feat: add version flag

cmd/root.go

@@ -8,6 +8,8 @@ import (
 	"github.com/spf13/cobra"
 )
 
+var Version string
+
 func Execute() error {
 	configFile := resolveConfigFile()
 	cfg, commands, err := loadConfig(configFile)
@@ -22,6 +24,8 @@ func Execute() error {
 	}
 
 	rootCmd.PersistentFlags().String("wand-file", "", "path to wand config file (overrides discovery)")
+	rootCmd.Version = Version
+	rootCmd.SetVersionTemplate("{{.Version}}\n")
 
 	if main, ok := commands["main"]; ok {
 		rootCmd.Short = main.Description

main.go

@@ -1,13 +1,19 @@
 package main
 
 import (
+	_ "embed"
 	"fmt"
 	"os"
+	"strings"
 
 	"github.com/chenasraf/wand/cmd"
 )
 
+//go:embed version.txt
+var version string
+
 func main() {
+	cmd.Version = strings.TrimSpace(version)
 	if err := cmd.Execute(); err != nil {
 		fmt.Fprintln(os.Stderr, err)
 		os.Exit(1)

version.txt

@@ -0,0 +1 @@
+1.3.1