Add systemd service

.gitignore

@@ -1,8 +1,7 @@
 /.cargo/
-/debian/.debhelper/
+/debian/*debhelper*
 /debian/cosmic-greeter.substvars
 /debian/cosmic-greeter/
-/debian/debhelper-build-stamp
 /debian/files
 /target/
 /vendor.tar

cosmic-greeter.toml

@@ -0,0 +1,6 @@
+[terminal]
+vt = "1"
+
+[default_session]
+command = "cage cosmic-greeter"
+user = "greeter"

debian/control

@@ -11,5 +11,5 @@ Homepage: https://github.com/pop-os/cosmic-greeter
 
 Package: cosmic-greeter
 Architecture: amd64 arm64
-Depends: greetd, ${misc:Depends}, ${shlibs:Depends}
+Depends: cage, greetd, ${misc:Depends}, ${shlibs:Depends}
 Description: Cosmic Greeter

debian/cosmic-greeter.install

@@ -0,0 +1 @@
+cosmic-greeter.toml etc/greetd/cosmic-greeter.toml

debian/cosmic-greeter.service

@@ -0,0 +1,20 @@
+[Unit]
+Description=COSMIC Greeter daemon
+After=systemd-user-sessions.service plymouth-quit-wait.service
+After=getty@tty1.service
+Conflicts=getty@tty1.service
+
+[Service]
+Type=simple
+ExecStart=greetd --config /etc/greetd/cosmic-greeter.toml
+IgnoreSIGPIPE=no
+SendSIGHUP=yes
+TimeoutStopSec=30s
+KeyringMode=shared
+Restart=always
+RestartSec=1
+StartLimitBurst=5
+StartLimitInterval=30
+
+[Install]
+Alias=display-manager.service