Add the jarld.service alias for jarl.service

systemctl restart/status jarld now work too. The package relinks a unit
enabled by an older version on upgrade, so the alias appears without
re-enabling; make uninstall removes the link.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

CHANGELOG.md

@@ -6,6 +6,12 @@ All notable changes to Jarl are documented here. The format follows
 
 ## [Unreleased]
 
+### Added
+
+- `jarl.service` has the alias `jarld.service`, so `systemctl restart
+  jarld` works too. The alias is linked when the unit is enabled; the
+  package relinks a unit enabled by an older version on upgrade.
+
 ## [0.6.0] - 2026-10-13
 
 ### Added

Makefile

@@ -114,6 +114,7 @@ install-files:
 
 uninstall:
 	rm -f $(DESTDIR)$(BINDIR)/jarld $(DESTDIR)$(BINDIR)/jarl $(DESTDIR)$(UNITDIR)/jarl.service \
+		$(DESTDIR)$(UNITDIR)/jarld.service \
 		$(DESTDIR)$(UNITDIR)/jarl-backup.service $(DESTDIR)$(UNITDIR)/jarl-backup.timer \
 		$(DESTDIR)$(BASHCOMPDIR)/jarl $(DESTDIR)$(BASHCOMPDIR)/jarld \
 		$(DESTDIR)$(SYSUSERSDIR)/jarl.conf $(DESTDIR)$(TMPFILESDIR)/jarl.conf

deploy/debian/postinst

@@ -38,6 +38,13 @@ if [ "$1" = configure ]; then
 		if systemctl is-enabled --quiet jarl-backup.timer 2>/dev/null; then
 			systemctl start jarl-backup.timer || true
 		fi
+		# The jarld.service alias is linked when jarl.service is enabled;
+		# relink a unit enabled before the alias existed (this neither
+		# starts nor stops jarld).
+		if [ -n "$2" ] && systemctl is-enabled --quiet jarl.service 2>/dev/null \
+			&& [ ! -e /etc/systemd/system/jarld.service ]; then
+			systemctl reenable jarl.service >/dev/null 2>&1 || true
+		fi
 		# An upgrade restarts a running jarld (its database is upgraded
 		# when it starts). A first install starts nothing: Jarl needs
 		# 'jarld init' and 'jarld adopt' first.

deploy/systemd/jarl.service

@@ -65,3 +65,5 @@ SystemCallErrorNumber=EPERM
 
 [Install]
 WantedBy=multi-user.target
+# 'systemctl restart jarld' works too (the daemon's binary is jarld).
+Alias=jarld.service

docs/install.md

@@ -317,6 +317,10 @@ systemctl status jarl
 journalctl -u jarl -f
 ```
 
+The unit also answers to `jarld` (`Alias=jarld.service`), so
+`systemctl restart jarld` and `journalctl -u jarl` work alike once it
+is enabled.
+
 Open `https://<management-address>:8053/` and log in as `admin`.
 
 ## 9. Set up the CLI