Session: create installer systemd service

README.md

@@ -21,6 +21,7 @@ You'll need the following dependencies:
  - libjson-glib-dev
  - libpantheon-wayland-1-dev
  - libpwquality-dev
+ - libsystemd-dev
  - libxkbregistry-dev
  - [distinst](https://github.com/pop-os/distinst/)
  - valac

session/compositor.service.in

@@ -0,0 +1,40 @@
+[Unit]
+Description=Greeter Compositor
+# On X11, try to show the GNOME Session Failed screen
+OnFailure=gnome-session-failed.target
+OnFailureJobMode=replace
+CollectMode=inactive-or-failed
+RefuseManualStart=on
+RefuseManualStop=on
+
+After=gnome-session-manager.target
+
+Requisite=gnome-session-initialized.target
+PartOf=gnome-session-initialized.target
+Before=gnome-session-initialized.target
+
+#NOTE: ConditionEnvironment works with systemd >= 246
+ConditionEnvironment=XDG_SESSION_TYPE=%I
+
+# Limit startup frequency more than the default
+StartLimitIntervalSec=15s
+StartLimitBurst=3
+
+[Service]
+Slice=session.slice
+Type=notify
+ExecStart=@bindir@/io.elementary.greeter-compositor
+
+# On X11 we do not need to unset any variables
+
+# On X11 we want to restart on-success (Alt+F2 + r) and on-failure.
+Restart=always
+# Do not wait before restarting the shell
+RestartSec=0ms
+# Kill any stubborn child processes after this long
+TimeoutStopSec=5
+
+# Lower down gnome-shell's OOM score to avoid being killed by OOM-killer too early
+OOMScoreAdjust=-1000
+
+

session/installer.service.in

@@ -0,0 +1,12 @@
+[Unit]
+Description=Installer
+After=gnome-session-initialized.target
+
+[Install]
+WantedBy=io.elementary.installer.target
+
+[Service]
+Type=exec
+ExecStart=@bindir@/io.elementary.installer
+Restart=on-failure
+Slice=session.slice

session/installer.target

@@ -0,0 +1,9 @@
+[Unit]
+Description=Installer
+DefaultDependencies=no
+
+Requisite=gnome-session-initialized.target
+PartOf=gnome-session-initialized.target
+Before=gnome-session-initialized.target
+
+Wants=io.elementary.installer.compositor.service

session/meson.build

@@ -1,18 +1,6 @@
 autostartdir = get_option('sysconfdir') / 'xdg' / 'autostart'
 schemadir = get_option('datadir') / 'glib-2.0' / 'schemas'
 
-install_data(
-    'autostart.desktop',
-    install_dir: autostartdir,
-    rename: meson.project_name() + '.desktop'
-)
-
-install_data(
-    'compositor-autostart.desktop',
-    install_dir: autostartdir,
-    rename: meson.project_name() + '.compositor.desktop'
-)
-
 install_data(
     'installer.desktop',
     install_dir: get_option('datadir') / 'xsessions'
@@ -33,3 +21,32 @@ install_subdir(
     install_dir: autostartdir,
     strip_directory: true
 )
+
+prefix = get_option('prefix')
+
+systemd_userunitdir = systemd_dep.get_pkgconfig_variable('systemduserunitdir')
+
+service_config = configuration_data()
+service_config.set('bindir', prefix / get_option('bindir'))
+
+configure_file(
+    input: 'compositor.service.in',
+    output: 'io.elementary.installer.compositor.service',
+    install: true,
+    install_dir: systemd_userunitdir,
+    configuration: service_config
+)
+
+install_data(
+    'installer.target',
+    rename: 'io.elementary.installer.target',
+    install_dir: systemd_userunitdir
+)
+
+configure_file(
+    input: 'installer.service.in',
+    output: 'io.elementary.installer.service',
+    configuration: service_config,
+    install: true,
+    install_dir: systemd_userunitdir
+)