feature/wgcf/version-command

.goreleaser.yml

@@ -3,7 +3,7 @@ builds:
   - env:
       - CGO_ENABLED=0
     ldflags:
-      - -s -w
+      - -s -w -X github.com/ViRb3/wgcf/v2/cmd.version=v{{.Version}}
     flags:
       - -trimpath
     goos:

README.md

@@ -19,6 +19,16 @@ You can find pre-compiled binaries on the [releases page](https://github.com/ViR
 ## Usage
 Run `wgcf` in a terminal without any arguments to display the help screen. All commands and parameters are documented.
 
+### Check version
+
+To display the current wgcf version, run:
+
+```bash
+wgcf --version
+```
+
+The output contains only the version string, matching the GitHub release tag (e.g., `v2.3.1`). Development builds report `dev` unless a version is specified at build time.
+
 ### Register new account
 Run the following command in a terminal:
 ```bash

cmd/root.go

@@ -15,11 +15,13 @@ import (
 	"github.com/spf13/viper"
 )
 
+var version = "dev"
 var cfgFile string
 
 var RootCmd = &cobra.Command{
-	Use:   "wgcf",
-	Short: "WireGuard Cloudflare Warp utility",
+	Version: version,
+	Use:     "wgcf",
+	Short:   "WireGuard Cloudflare Warp utility",
 	Long: FormatMessage("", `
 wgcf is a utility for Cloudflare Warp that allows you to create and
 manage accounts, assign license keys, and generate WireGuard profiles.
@@ -37,6 +39,7 @@ func Execute() error {
 
 func init() {
 	cobra.OnInitialize(initConfig)
+	RootCmd.SetVersionTemplate("{{.Version}}\n")
 	RootCmd.PersistentFlags().StringVar(&cfgFile, "config", "wgcf-account.toml", "Configuration file")
 	RootCmd.AddCommand(register.Cmd)
 	RootCmd.AddCommand(update.Cmd)

cmd/root_test.go

@@ -0,0 +1,59 @@
+package cmd
+
+import (
+	"bytes"
+	"os/exec"
+	"path/filepath"
+	"runtime"
+	"testing"
+)
+
+func TestVersionDevOutputFormat(t *testing.T) {
+	var output bytes.Buffer
+
+	RootCmd.SetOut(&output)
+	RootCmd.SetArgs([]string{"--version"})
+
+	t.Cleanup(func() {
+		RootCmd.SetOut(nil)
+		RootCmd.SetArgs(nil)
+	})
+
+	if err := RootCmd.Execute(); err != nil {
+		t.Fatal(err)
+	}
+
+	want := version + "\n"
+	if got := output.String(); got != want {
+		t.Errorf("got %q, want %q", got, want)
+	}
+}
+
+func TestVersionSetOnBuild(t *testing.T) {
+	const want = "v5.5.5\n"
+
+	binary := filepath.Join(t.TempDir(), "wgcf")
+	if runtime.GOOS == "windows" {
+		binary += ".exe"
+	}
+
+	build := exec.Command(
+		"go", "build",
+		"-ldflags", "-X github.com/ViRb3/wgcf/v2/cmd.version=v5.5.5",
+		"-o", binary,
+		"..",
+	)
+
+	if output, err := build.CombinedOutput(); err != nil {
+		t.Fatalf("go build failed: %v\n%s", err, string(output))
+	}
+
+	output, err := exec.Command(binary, "--version").Output()
+	if err != nil {
+		t.Fatalf("go version failed: %v\n%s", err, string(output))
+	}
+
+	if string(output) != want {
+		t.Errorf("got %q, want %q", string(output), want)
+	}
+}