Output version (#18)

Author: cin

.github/workflows/release.yml

@@ -28,25 +28,25 @@ jobs:
 
     - name: Go Build linux/amd64
       run: |
-        CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -o k8s-parallel-exec-linux-amd64
+        CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -ldflags "-X main.version=${{ github.event.release.tag_name }}" -o k8s-parallel-exec-linux-amd64
         tar zcf k8s-parallel-exec-linux-amd64.tgz k8s-parallel-exec-linux-amd64
         echo "KPE_LINUX_AMD64_SHA256=$(sha256sum k8s-parallel-exec-linux-amd64.tgz | awk '{print $1}')" >> $GITHUB_ENV
 
     - name: Go Build linux/arm64
       run: |
-        CGO_ENABLED=0 GOOS=linux GOARCH=arm64 go build -o k8s-parallel-exec-linux-arm64
+        CGO_ENABLED=0 GOOS=linux GOARCH=arm64 go build -ldflags "-X main.version=${{ github.event.release.tag_name }}" -o k8s-parallel-exec-linux-arm64
         tar zcf k8s-parallel-exec-linux-arm64.tgz k8s-parallel-exec-linux-arm64
         echo "KPE_LINUX_ARM64_SHA256=$(sha256sum k8s-parallel-exec-linux-arm64.tgz | awk '{print $1}')" >> $GITHUB_ENV
 
     - name: Go Build darwin/amd64
       run: |
-        CGO_ENABLED=0 GOOS=darwin GOARCH=amd64 go build -o k8s-parallel-exec-darwin-amd64
+        CGO_ENABLED=0 GOOS=darwin GOARCH=amd64 go build -ldflags "-X main.version=${{ github.event.release.tag_name }}" -o k8s-parallel-exec-darwin-amd64
         tar zcf k8s-parallel-exec-darwin-amd64.tgz k8s-parallel-exec-darwin-amd64
         echo "KPE_DARWIN_AMD64_SHA256=$(sha256sum k8s-parallel-exec-darwin-amd64.tgz | awk '{print $1}')" >> $GITHUB_ENV
 
     - name: Go Build darwin/arm64
       run: |
-        CGO_ENABLED=0 GOOS=darwin GOARCH=arm64 go build -o k8s-parallel-exec-darwin-arm64
+        CGO_ENABLED=0 GOOS=darwin GOARCH=arm64 go build -ldflags "-X main.version=${{ github.event.release.tag_name }}" -o k8s-parallel-exec-darwin-arm64
         tar zcf k8s-parallel-exec-darwin-arm64.tgz k8s-parallel-exec-darwin-arm64
         echo "KPE_DARWIN_ARM64_SHA256=$(sha256sum k8s-parallel-exec-darwin-arm64.tgz | awk '{print $1}')" >> $GITHUB_ENV
 

main.go

@@ -38,6 +38,8 @@ const (
 	podNameColor = BrightCyan
 )
 
+var version = "dev"
+
 type PodResult struct {
 	podName string
 	output  string
@@ -56,8 +58,14 @@ func main() {
 	container := flag.String("c", "", "Container to execute the command against")
 	labelSelector := flag.String("l", "", "Label selector to filter pods")
 	namespace := flag.String("n", "", "Namespace filter")
+	versionFlag := flag.Bool("v", false, "print the version")
 	flag.Parse()
 
+	if *versionFlag {
+		fmt.Println(version)
+		os.Exit(0)
+	}
+
 	if *container == "" {
 		fmt.Println("Error: container name must be specified with -c")
 		os.Exit(1)