feat: brew version support

cmd/difi/main.go

@@ -10,37 +10,35 @@ import (
 	"github.com/oug-t/difi/internal/ui"
 )
 
+var version = "dev"
+
 func main() {
-	// Define flags
+	showVersion := flag.Bool("version", false, "Show version")
-	help := flag.Bool("help", false, "Show help")
+
 	flag.Usage = func() {
 		fmt.Fprintf(os.Stderr, "Usage: difi [flags] [target-branch]\n")
 		fmt.Fprintf(os.Stderr, "\nFlags:\n")
 		flag.PrintDefaults()
 		fmt.Fprintf(os.Stderr, "\nExamples:\n")
-		fmt.Fprintf(os.Stderr, "  difi             # Diff against main\n")
+		fmt.Fprintf(os.Stderr, "  difi              # Diff against main\n")
-		fmt.Fprintf(os.Stderr, "  difi develop     # Diff against develop\n")
+		fmt.Fprintf(os.Stderr, "  difi develop      # Diff against develop\n")
-		fmt.Fprintf(os.Stderr, "  difi HEAD~1      # Diff against last commit\n")
+		fmt.Fprintf(os.Stderr, "  difi HEAD~1       # Diff against last commit\n")
 	}
+
 	flag.Parse()
 
-	if *help {
+	if *showVersion {
-		flag.Usage()
+		fmt.Printf("difi version %s\n", version)
 		os.Exit(0)
 	}
 
-	// Determine Target Branch
-	// If user provides an argument (e.g., "difi develop"), use it.
-	// Otherwise default to "main".
 	target := "main"
 	if flag.NArg() > 0 {
 		target = flag.Arg(0)
 	}
 
-	// Load Config
 	cfg := config.Load()
 
-	// Pass target to the model
 	p := tea.NewProgram(ui.NewModel(cfg, target), tea.WithAltScreen())
 	if _, err := p.Run(); err != nil {
 		fmt.Printf("Error: %v\n", err)