make build

internal/cmd/root.go

@@ -24,6 +24,13 @@ import (
 	"github.com/spf13/cobra"
 )
 
+// Version is the application version string. It is set at link time via:
+//
+//	-ldflags="-X github.com/Rain-kl/Wavelet/internal/cmd.Version=<version>"
+//
+// When not set (e.g. local `go run`), the value defaults to "dev".
+var Version = "dev"
+
 var rootCmd = &cobra.Command{
 	Use: "wavelet",
 	PreRun: func(_ *cobra.Command, _ []string) {
@@ -52,6 +59,7 @@ var rootCmd = &cobra.Command{
 }
 
 func init() {
+	rootCmd.Version = Version
 	rootCmd.CompletionOptions.DisableDefaultCmd = true
 }