include version info

config/config.go

@@ -48,7 +48,8 @@ type Config struct {
 
 	Printer PrinterConfig
 
-	LogLevel int
+	LogLevel     int
+	PrintVersion bool
 }
 
 type UIConfig struct {
@@ -141,6 +142,8 @@ func Parse(arguments []string) *Config {
 	flag.StringVar(&c.Printer.Format, "print-format", PrinterFormatJSON, fmt.Sprintf("Response printer format (%s, %s)", PrinterFormatPlain, PrinterFormatJSON))
 	flag.StringVar(&c.Printer.targets, "print-targets", PrinterTargetOut, fmt.Sprintf("Comma seperated response printer targets (%s, %s, <path/to/file>)", PrinterTargetOut, PrinterTargetErr))
 
+	flag.BoolVar(&c.PrintVersion, "v", false, "Show the version")
+
 	flag.Usage = func() {
 		printUsage(flag.CommandLine.Output())
 	}

frontend/wailsjs/go/models.ts

@@ -282,6 +282,7 @@ export namespace config {
 	    CallOptions: CallOptionsConfig;
 	    Printer: PrinterConfig;
 	    LogLevel: number;
+	    PrintVersion: boolean;
 
 	    static createFrom(source: any = {}) {
 	        return new Config(source);
@@ -300,6 +301,7 @@ export namespace config {
 	        this.CallOptions = this.convertValues(source["CallOptions"], CallOptionsConfig);
 	        this.Printer = this.convertValues(source["Printer"], PrinterConfig);
 	        this.LogLevel = source["LogLevel"];
+	        this.PrintVersion = source["PrintVersion"];
 	    }
 
 		convertValues(a: any, classs: any, asMap: boolean = false): any {

main.go

@@ -34,6 +34,11 @@ func main() {
 	})
 
 	cfg := config.Parse(os.Args[1:])
+	if cfg.PrintVersion {
+		fmt.Fprintln(os.Stderr, versionLine())
+		os.Exit(0)
+		return
+	}
 	if !buildMode {
 		if err := cfg.Validate(); err != nil {
 			fmt.Fprintln(os.Stderr, err.Error())

version.go

@@ -0,0 +1,32 @@
+package main
+
+import (
+	"fmt"
+	"strconv"
+	"time"
+)
+
+var (
+	commitHash = "9295DFD720"
+	branch     = ""
+	tag        = "dev"
+	built      = "629579700000"
+)
+
+func versionLine() string {
+	version := tag
+	if branch != "" {
+		version = branch
+	}
+	builtTime := time.UnixMilli(0)
+	if iBuilt, _ := strconv.ParseInt(built, 10, 64); iBuilt > 0 {
+		builtTime = time.UnixMilli(iBuilt)
+	}
+
+	return fmt.Sprintf("%s (#%s - %s) - https://github.com/rainu/ask-mai/tree/%s",
+		version,
+		commitHash[:6],
+		builtTime.UTC().Format(time.RFC3339),
+		commitHash[:6],
+	)
+}