Pretty print systemd services file

Fixes: #13337

I added newline only on options IE Begin with "-"

[NO NEW TESTS NEEDED]

Signed-off-by: Abhijeet Kasurde <akasurde@redhat.com>
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>

2 files changed, 163 insertions, 19 deletions

diff --git a/pkg/systemd/generate/containers.go b/pkg/systemd/generate/containers.go
index e11aed771..d552e21ed 100644
--- a/pkg/systemd/generate/containers.go
+++ b/pkg/systemd/generate/containers.go
@@ -282,6 +282,22 @@ func setContainerNameForTemplate(startCommand []string, info *containerInfo) ([]
 	return startCommand, nil
 }
 
+func formatOptions(options []string) string {
+	var formatted strings.Builder
+	if len(options) == 0 {
+		return ""
+	}
+	formatted.WriteString(options[0])
+	for _, o := range options[1:] {
+		if strings.HasPrefix(o, "-") {
+			formatted.WriteString(" \\\n\t" + o)
+			continue
+		}
+		formatted.WriteString(" " + o)
+	}
+	return formatted.String()
+}
+
 // executeContainerTemplate executes the container template on the specified
 // containerInfo.  Note that the containerInfo is also post processed and
 // completed, which allows for an easier unit testing.
@@ -475,9 +491,8 @@ func executeContainerTemplate(info *containerInfo, options entities.GenerateSyst
 				return "", err
 			}
 		}
-		info.ExecStart = strings.Join(startCommand, " ")
+		info.ExecStart = formatOptions(startCommand)
 	}
-
 	info.TimeoutStopSec = minTimeoutStopSec + info.StopTimeout
 
 	if info.PodmanVersion == "" {
diff --git a/pkg/systemd/generate/containers_test.go b/pkg/systemd/generate/containers_test.go
index b9bf7c317..640aa298e 100644
--- a/pkg/systemd/generate/containers_test.go
+++ b/pkg/systemd/generate/containers_test.go
@@ -266,7 +266,15 @@ Environment=PODMAN_SYSTEMD_UNIT=%n
 Restart=on-failure
 TimeoutStopSec=70
 ExecStartPre=/bin/rm -f %t/%n.ctr-id
-ExecStart=/usr/bin/podman container run --cidfile=%t/%n.ctr-id --cgroups=no-conmon --rm --sdnotify=conmon -d --replace --name jadda-jadda --hostname hello-world awesome-image:latest command arg1 ... argN "foo=arg \"with \" space"
+ExecStart=/usr/bin/podman container run \
+	--cidfile=%t/%n.ctr-id \
+	--cgroups=no-conmon \
+	--rm \
+	--sdnotify=conmon \
+	-d \
+	--replace \
+	--name jadda-jadda \
+	--hostname hello-world awesome-image:latest command arg1 ... argN "foo=arg \"with \" space"
 ExecStop=/usr/bin/podman stop --ignore --cidfile=%t/%n.ctr-id
 ExecStopPost=/usr/bin/podman rm -f --ignore --cidfile=%t/%n.ctr-id
 Type=notify
@@ -291,7 +299,15 @@ Environment=PODMAN_SYSTEMD_UNIT=%n
 Restart=on-failure
 TimeoutStopSec=70
 ExecStartPre=/bin/rm -f %t/%n.ctr-id
-ExecStart=/usr/bin/podman container run --cidfile=%t/%n.ctr-id --cgroups=no-conmon --rm -d --replace --sdnotify=container --name jadda-jadda --hostname hello-world awesome-image:latest command arg1 ... argN "foo=arg \"with \" space"
+ExecStart=/usr/bin/podman container run \
+	--cidfile=%t/%n.ctr-id \
+	--cgroups=no-conmon \
+	--rm \
+	-d \
+	--replace \
+	--sdnotify=container \
+	--name jadda-jadda \
+	--hostname hello-world awesome-image:latest command arg1 ... argN "foo=arg \"with \" space"
 ExecStop=/usr/bin/podman stop --ignore --cidfile=%t/%n.ctr-id
 ExecStopPost=/usr/bin/podman rm -f --ignore --cidfile=%t/%n.ctr-id
 Type=notify
@@ -316,7 +332,15 @@ Environment=PODMAN_SYSTEMD_UNIT=%n
 Restart=on-failure
 TimeoutStopSec=70
 ExecStartPre=/bin/rm -f %t/%n.ctr-id
-ExecStart=/usr/bin/podman run --cidfile=%t/%n.ctr-id --cgroups=no-conmon --rm --sdnotify=conmon --replace -d --name jadda-jadda --hostname hello-world awesome-image:latest command arg1 ... argN
+ExecStart=/usr/bin/podman run \
+	--cidfile=%t/%n.ctr-id \
+	--cgroups=no-conmon \
+	--rm \
+	--sdnotify=conmon \
+	--replace \
+	-d \
+	--name jadda-jadda \
+	--hostname hello-world awesome-image:latest command arg1 ... argN
 ExecStop=/usr/bin/podman stop --ignore --cidfile=%t/%n.ctr-id
 ExecStopPost=/usr/bin/podman rm -f --ignore --cidfile=%t/%n.ctr-id
 Type=notify
@@ -341,7 +365,16 @@ Environment=PODMAN_SYSTEMD_UNIT=%n
 Restart=on-failure
 TimeoutStopSec=70
 ExecStartPre=/bin/rm -f %t/%n.ctr-id
-ExecStart=/usr/bin/podman run --cidfile=%t/%n.ctr-id --cgroups=no-conmon --rm --pod-id-file %t/pod-foobar.pod-id-file --sdnotify=conmon --replace -d --name jadda-jadda --hostname hello-world awesome-image:latest command arg1 ... argN
+ExecStart=/usr/bin/podman run \
+	--cidfile=%t/%n.ctr-id \
+	--cgroups=no-conmon \
+	--rm \
+	--pod-id-file %t/pod-foobar.pod-id-file \
+	--sdnotify=conmon \
+	--replace \
+	-d \
+	--name jadda-jadda \
+	--hostname hello-world awesome-image:latest command arg1 ... argN
 ExecStop=/usr/bin/podman stop --ignore --cidfile=%t/%n.ctr-id
 ExecStopPost=/usr/bin/podman rm -f --ignore --cidfile=%t/%n.ctr-id
 Type=notify
@@ -366,7 +399,15 @@ Environment=PODMAN_SYSTEMD_UNIT=%n
 Restart=on-failure
 TimeoutStopSec=70
 ExecStartPre=/bin/rm -f %t/%n.ctr-id
-ExecStart=/usr/bin/podman run --cidfile=%t/%n.ctr-id --cgroups=no-conmon --rm --sdnotify=conmon --replace --detach --name jadda-jadda --hostname hello-world awesome-image:latest command arg1 ... argN
+ExecStart=/usr/bin/podman run \
+	--cidfile=%t/%n.ctr-id \
+	--cgroups=no-conmon \
+	--rm \
+	--sdnotify=conmon \
+	--replace \
+	--detach \
+	--name jadda-jadda \
+	--hostname hello-world awesome-image:latest command arg1 ... argN
 ExecStop=/usr/bin/podman stop --ignore --cidfile=%t/%n.ctr-id
 ExecStopPost=/usr/bin/podman rm -f --ignore --cidfile=%t/%n.ctr-id
 Type=notify
@@ -391,7 +432,12 @@ Environment=PODMAN_SYSTEMD_UNIT=%n
 Restart=on-failure
 TimeoutStopSec=70
 ExecStartPre=/bin/rm -f %t/%n.ctr-id
-ExecStart=/usr/bin/podman run --cidfile=%t/%n.ctr-id --cgroups=no-conmon --rm --sdnotify=conmon -d awesome-image:latest
+ExecStart=/usr/bin/podman run \
+	--cidfile=%t/%n.ctr-id \
+	--cgroups=no-conmon \
+	--rm \
+	--sdnotify=conmon \
+	-d awesome-image:latest
 ExecStop=/usr/bin/podman stop --ignore --cidfile=%t/%n.ctr-id
 ExecStopPost=/usr/bin/podman rm -f --ignore --cidfile=%t/%n.ctr-id
 Type=notify
@@ -417,7 +463,12 @@ Environment=PODMAN_SYSTEMD_UNIT=%n
 Restart=on-failure
 TimeoutStopSec=102
 ExecStartPre=/bin/rm -f %t/%n.ctr-id
-ExecStart=/usr/bin/podman run --cidfile=%t/%n.ctr-id --cgroups=no-conmon --rm --sdnotify=conmon ` +
+ExecStart=/usr/bin/podman run \
+	--cidfile=%t/%n.ctr-id \
+	--cgroups=no-conmon \
+	--rm \
+	--sdnotify=conmon \
+	` +
 			detachparam +
 			` awesome-image:latest
 ExecStop=/usr/bin/podman stop --ignore --cidfile=%t/%n.ctr-id
@@ -446,7 +497,16 @@ Environment=PODMAN_SYSTEMD_UNIT=%n
 Restart=on-failure
 TimeoutStopSec=102
 ExecStartPre=/bin/rm -f %t/%n.ctr-id
-ExecStart=/usr/bin/podman run --cidfile=%t/%n.ctr-id --cgroups=no-conmon --rm --sdnotify=conmon -d --replace --name test -p 80:80 awesome-image:latest somecmd --detach=false
+ExecStart=/usr/bin/podman run \
+	--cidfile=%t/%n.ctr-id \
+	--cgroups=no-conmon \
+	--rm \
+	--sdnotify=conmon \
+	-d \
+	--replace \
+	--name test \
+	-p 80:80 awesome-image:latest somecmd \
+	--detach=false
 ExecStop=/usr/bin/podman stop --ignore --cidfile=%t/%n.ctr-id
 ExecStopPost=/usr/bin/podman rm -f --ignore --cidfile=%t/%n.ctr-id
 Type=notify
@@ -471,7 +531,14 @@ Environment=PODMAN_SYSTEMD_UNIT=%n
 Restart=on-failure
 TimeoutStopSec=102
 ExecStartPre=/bin/rm -f %t/%n.ctr-id
-ExecStart=/usr/bin/podman --events-backend none --runroot /root run --cidfile=%t/%n.ctr-id --cgroups=no-conmon --rm --sdnotify=conmon -d awesome-image:latest
+ExecStart=/usr/bin/podman \
+	--events-backend none \
+	--runroot /root run \
+	--cidfile=%t/%n.ctr-id \
+	--cgroups=no-conmon \
+	--rm \
+	--sdnotify=conmon \
+	-d awesome-image:latest
 ExecStop=/usr/bin/podman stop --ignore --cidfile=%t/%n.ctr-id
 ExecStopPost=/usr/bin/podman rm -f --ignore --cidfile=%t/%n.ctr-id
 Type=notify
@@ -496,7 +563,12 @@ Environment=PODMAN_SYSTEMD_UNIT=%n
 Restart=on-failure
 TimeoutStopSec=70
 ExecStartPre=/bin/rm -f %t/%n.ctr-id
-ExecStart=/usr/bin/podman container run --cidfile=%t/%n.ctr-id --cgroups=no-conmon --rm --sdnotify=conmon -d awesome-image:latest
+ExecStart=/usr/bin/podman container run \
+	--cidfile=%t/%n.ctr-id \
+	--cgroups=no-conmon \
+	--rm \
+	--sdnotify=conmon \
+	-d awesome-image:latest
 ExecStop=/usr/bin/podman stop --ignore --cidfile=%t/%n.ctr-id
 ExecStopPost=/usr/bin/podman rm -f --ignore --cidfile=%t/%n.ctr-id
 Type=notify
@@ -521,7 +593,16 @@ Environment=PODMAN_SYSTEMD_UNIT=%n
 Restart=on-failure
 TimeoutStopSec=70
 ExecStartPre=/bin/rm -f %t/%n.ctr-id
-ExecStart=/usr/bin/podman run --cidfile=%t/%n.ctr-id --cgroups=no-conmon --rm --sdnotify=conmon -d --replace --name test --log-driver=journald --log-opt=tag={{.Name}} awesome-image:latest
+ExecStart=/usr/bin/podman run \
+	--cidfile=%t/%n.ctr-id \
+	--cgroups=no-conmon \
+	--rm \
+	--sdnotify=conmon \
+	-d \
+	--replace \
+	--name test \
+	--log-driver=journald \
+	--log-opt=tag={{.Name}} awesome-image:latest
 ExecStop=/usr/bin/podman stop --ignore --cidfile=%t/%n.ctr-id
 ExecStopPost=/usr/bin/podman rm -f --ignore --cidfile=%t/%n.ctr-id
 Type=notify
@@ -546,7 +627,15 @@ Environment=PODMAN_SYSTEMD_UNIT=%n
 Restart=on-failure
 TimeoutStopSec=70
 ExecStartPre=/bin/rm -f %t/%n.ctr-id
-ExecStart=/usr/bin/podman run --cidfile=%t/%n.ctr-id --cgroups=no-conmon --rm --sdnotify=conmon -d --replace --name test awesome-image:latest sh -c "kill $$$$ && echo %%\\"
+ExecStart=/usr/bin/podman run \
+	--cidfile=%t/%n.ctr-id \
+	--cgroups=no-conmon \
+	--rm \
+	--sdnotify=conmon \
+	-d \
+	--replace \
+	--name test awesome-image:latest sh \
+	-c "kill $$$$ && echo %%\\"
 ExecStop=/usr/bin/podman stop --ignore --cidfile=%t/%n.ctr-id
 ExecStopPost=/usr/bin/podman rm -f --ignore --cidfile=%t/%n.ctr-id
 Type=notify
@@ -571,7 +660,16 @@ Environment=PODMAN_SYSTEMD_UNIT=%n
 Restart=on-failure
 TimeoutStopSec=70
 ExecStartPre=/bin/rm -f %t/%n.ctr-id
-ExecStart=/usr/bin/podman run --cidfile=%t/%n.ctr-id --cgroups=no-conmon --rm --sdnotify=conmon -d --conmon-pidfile=foo awesome-image:latest podman run --cgroups=foo --conmon-pidfile=foo --cidfile=foo alpine
+ExecStart=/usr/bin/podman run \
+	--cidfile=%t/%n.ctr-id \
+	--cgroups=no-conmon \
+	--rm \
+	--sdnotify=conmon \
+	-d \
+	--conmon-pidfile=foo awesome-image:latest podman run \
+	--cgroups=foo \
+	--conmon-pidfile=foo \
+	--cidfile=foo alpine
 ExecStop=/usr/bin/podman stop --ignore --cidfile=%t/%n.ctr-id
 ExecStopPost=/usr/bin/podman rm -f --ignore --cidfile=%t/%n.ctr-id
 Type=notify
@@ -596,7 +694,18 @@ Environment=PODMAN_SYSTEMD_UNIT=%n
 Restart=on-failure
 TimeoutStopSec=70
 ExecStartPre=/bin/rm -f %t/%n.ctr-id
-ExecStart=/usr/bin/podman run --cidfile=%t/%n.ctr-id --cgroups=no-conmon --rm --pod-id-file %t/pod-foobar.pod-id-file --sdnotify=conmon -d --conmon-pidfile=foo awesome-image:latest podman run --cgroups=foo --conmon-pidfile=foo --cidfile=foo --pod-id-file /tmp/pod-foobar.pod-id-file alpine
+ExecStart=/usr/bin/podman run \
+	--cidfile=%t/%n.ctr-id \
+	--cgroups=no-conmon \
+	--rm \
+	--pod-id-file %t/pod-foobar.pod-id-file \
+	--sdnotify=conmon \
+	-d \
+	--conmon-pidfile=foo awesome-image:latest podman run \
+	--cgroups=foo \
+	--conmon-pidfile=foo \
+	--cidfile=foo \
+	--pod-id-file /tmp/pod-foobar.pod-id-file alpine
 ExecStop=/usr/bin/podman stop --ignore --cidfile=%t/%n.ctr-id
 ExecStopPost=/usr/bin/podman rm -f --ignore --cidfile=%t/%n.ctr-id
 Type=notify
@@ -622,7 +731,16 @@ Environment=FOO=abc "BAR=my test" USER=%%a
 Restart=on-failure
 TimeoutStopSec=70
 ExecStartPre=/bin/rm -f %t/%n.ctr-id
-ExecStart=/usr/bin/podman run --cidfile=%t/%n.ctr-id --cgroups=no-conmon --rm --sdnotify=conmon -d --env FOO --env=BAR --env=MYENV=2 -e USER awesome-image:latest
+ExecStart=/usr/bin/podman run \
+	--cidfile=%t/%n.ctr-id \
+	--cgroups=no-conmon \
+	--rm \
+	--sdnotify=conmon \
+	-d \
+	--env FOO \
+	--env=BAR \
+	--env=MYENV=2 \
+	-e USER awesome-image:latest
 ExecStop=/usr/bin/podman stop --ignore --cidfile=%t/%n.ctr-id
 ExecStopPost=/usr/bin/podman rm -f --ignore --cidfile=%t/%n.ctr-id
 Type=notify
@@ -648,7 +766,12 @@ Restart=on-failure
 StartLimitBurst=42
 TimeoutStopSec=70
 ExecStartPre=/bin/rm -f %t/%n.ctr-id
-ExecStart=/usr/bin/podman run --cidfile=%t/%n.ctr-id --cgroups=no-conmon --rm --sdnotify=conmon -d awesome-image:latest
+ExecStart=/usr/bin/podman run \
+	--cidfile=%t/%n.ctr-id \
+	--cgroups=no-conmon \
+	--rm \
+	--sdnotify=conmon \
+	-d awesome-image:latest
 ExecStop=/usr/bin/podman stop --ignore --cidfile=%t/%n.ctr-id
 ExecStopPost=/usr/bin/podman rm -f --ignore --cidfile=%t/%n.ctr-id
 Type=notify
@@ -674,7 +797,13 @@ Restart=on-failure
 StartLimitBurst=42
 TimeoutStopSec=70
 ExecStartPre=/bin/rm -f %t/%n.ctr-id
-ExecStart=/usr/bin/podman run --name=container-foo-%i --cidfile=%t/%n.ctr-id --cgroups=no-conmon --rm --sdnotify=conmon -d awesome-image:latest
+ExecStart=/usr/bin/podman run \
+	--name=container-foo-%i \
+	--cidfile=%t/%n.ctr-id \
+	--cgroups=no-conmon \
+	--rm \
+	--sdnotify=conmon \
+	-d awesome-image:latest
 ExecStop=/usr/bin/podman stop --ignore --cidfile=%t/%n.ctr-id
 ExecStopPost=/usr/bin/podman rm -f --ignore --cidfile=%t/%n.ctr-id
 Type=notify