From 243ca7c280f0158b46e0d3068f5bab8b507cea8d Mon Sep 17 00:00:00 2001
From: Valentin Rothberg <vrothberg@redhat.com>
Date: Tue, 4 Apr 2023 10:04:46 +0200
Subject: [PATCH] add `quadlet -version` flag

I recently wanted to check which version of Quadlet I was using and
found a `-version` flag to be missing.  Since Quadlet and Podman are
bundled together, it seems reasonable to me for them to share the same
version.

Signed-off-by: Valentin Rothberg <vrothberg@redhat.com>
---
 cmd/quadlet/main.go      | 10 +++++++++-
 test/e2e/quadlet_test.go | 10 ++++++++++
 2 files changed, 19 insertions(+), 1 deletion(-)

diff --git a/cmd/quadlet/main.go b/cmd/quadlet/main.go
index 7a8e6792d1..9a956ad625 100644
--- a/cmd/quadlet/main.go
+++ b/cmd/quadlet/main.go
@@ -12,6 +12,7 @@ import (
 
 	"github.com/containers/podman/v4/pkg/systemd/parser"
 	"github.com/containers/podman/v4/pkg/systemd/quadlet"
+	"github.com/containers/podman/v4/version/rawversion"
 )
 
 // This commandline app is the systemd generator (system and user,
@@ -27,6 +28,7 @@ var (
 	noKmsgFlag  bool
 	isUserFlag  bool // True if run as quadlet-user-generator executable
 	dryRunFlag  bool // True if -dryrun is used
+	versionFlag bool // True if -version is used
 )
 
 var (
@@ -298,6 +300,11 @@ func main() {
 
 	flag.Parse()
 
+	if versionFlag {
+		fmt.Printf("%s\n", rawversion.RawVersion)
+		return
+	}
+
 	if verboseFlag || dryRunFlag {
 		enableDebug()
 	}
@@ -389,5 +396,6 @@ func init() {
 	flag.BoolVar(&verboseFlag, "v", false, "Print debug information")
 	flag.BoolVar(&noKmsgFlag, "no-kmsg-log", false, "Don't log to kmsg")
 	flag.BoolVar(&isUserFlag, "user", false, "Run as systemd user")
-	flag.BoolVar(&dryRunFlag, "dryrun", false, "run in dryrun mode printing debug information")
+	flag.BoolVar(&dryRunFlag, "dryrun", false, "Run in dryrun mode printing debug information")
+	flag.BoolVar(&versionFlag, "version", false, "Print version information and exit")
 }
diff --git a/test/e2e/quadlet_test.go b/test/e2e/quadlet_test.go
index 2e4c67fa81..e38a4e7e74 100644
--- a/test/e2e/quadlet_test.go
+++ b/test/e2e/quadlet_test.go
@@ -9,6 +9,7 @@ import (
 	"strings"
 
 	"github.com/containers/podman/v4/pkg/systemd/parser"
+	"github.com/containers/podman/v4/version"
 	"github.com/mattn/go-shellwords"
 
 	. "github.com/containers/podman/v4/test/utils"
@@ -426,6 +427,15 @@ var _ = Describe("quadlet system generator", func() {
 
 	})
 
+	Describe("quadlet -version", func() {
+		It("Should print correct version", func() {
+			session := podmanTest.Quadlet([]string{"-version"}, "/something")
+			session.WaitWithDefaultTimeout()
+			Expect(session).Should(Exit(0))
+			Expect(session.OutputToString()).To(Equal(version.Version.String()))
+		})
+	})
+
 	Describe("Running quadlet dryrun tests", func() {
 		It("Should exit with an error because of no files are found to parse", func() {
 			fileName := "basic.kube"