set release version via ldflags

Author: skarim

.github/workflows/release.yml

@@ -15,7 +15,11 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v6
+      - id: version
+        run: echo "version=${GITHUB_REF_NAME#v}" >> "$GITHUB_OUTPUT"
       - uses: cli/gh-extension-precompile@v2
         with:
           generate_attestations: true
           go_version_file: go.mod
+          go_build_options: >-
+            -ldflags '-X github.com/github/gh-stack/cmd.Version=${{ steps.version.outputs.version }}'

cmd/root.go

@@ -21,6 +21,8 @@ func RootCmd() *cobra.Command {
 		SilenceErrors: true,
 	}
 
+	root.SetVersionTemplate("gh stack version {{.Version}}\n")
+
 	root.SetOut(cfg.Out)
 	root.SetErr(cfg.Err)
 

cmd/version.go

@@ -1,7 +1,7 @@
 package cmd
 
 // Version is the current version of gh-stack.
-// It can be overridden at build time via:
-//
-//	go build -ldflags="-X github.com/github/gh-stack/cmd.Version=1.2.3"
-var Version = "0.0.1"
+// In release builds, this is overridden at build time via ldflags
+// (see .github/workflows/release.yml).
+// The "dev" default indicates a local development build.
+var Version = "dev"