From 41ee397de2692890fcf2717500bd66af0f632fb3 Mon Sep 17 00:00:00 2001
From: LaserEyess <LaserEyess@users.noreply.github.com>
Date: Sun, 23 Mar 2025 13:49:43 -0400
Subject: [PATCH] build: optionally install systemd service

If using a systemd based distro, it is useful to have the service file
installed so that it properly integrates with the service manager.
Certain distros are carrying around patches that accomplish this.
---
 .builds/alpine.yml          |  2 +-
 .builds/freebsd.yml         |  2 +-
 fr.emersion.mako.service.in |  1 +
 meson.build                 | 14 ++++++++++++++
 meson_options.txt           |  1 +
 5 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/.builds/alpine.yml b/.builds/alpine.yml
index 4b83c765..26f1e73c 100644
--- a/.builds/alpine.yml
+++ b/.builds/alpine.yml
@@ -13,7 +13,7 @@ sources:
 tasks:
   - setup: |
       cd mako
-      meson build/ -Dauto_features=enabled -Dsd-bus-provider=libelogind
+      meson build/ -Dauto_features=enabled -Dsd-bus-provider=libelogind -Dsystemd=disabled
   - build: |
       cd mako
       ninja -C build/
diff --git a/.builds/freebsd.yml b/.builds/freebsd.yml
index 532fcef4..3f326286 100644
--- a/.builds/freebsd.yml
+++ b/.builds/freebsd.yml
@@ -15,7 +15,7 @@ sources:
 tasks:
   - setup: |
       cd mako
-      meson build/ -Dauto_features=enabled -Dsd-bus-provider=basu
+      meson build/ -Dauto_features=enabled -Dsd-bus-provider=basu -Dsystemd=disabled
   - build: |
       cd mako
       ninja -C build/
diff --git a/fr.emersion.mako.service.in b/fr.emersion.mako.service.in
index db4bd8b8..4cc0080e 100644
--- a/fr.emersion.mako.service.in
+++ b/fr.emersion.mako.service.in
@@ -1,3 +1,4 @@
 [D-BUS Service]
 Name=org.freedesktop.Notifications
 Exec=@bindir@/mako
+@systemd_service@
diff --git a/meson.build b/meson.build
index c3284e4c..503715a8 100644
--- a/meson.build
+++ b/meson.build
@@ -108,6 +108,20 @@ executable(
 
 conf_data = configuration_data()
 conf_data.set('bindir', get_option('prefix') / get_option('bindir'))
+conf_data.set('systemd_service', '')
+
+systemd = dependency('systemd', required: get_option('systemd'))
+if systemd.found()
+	service_file = 'mako.service'
+	user_unit_dir = systemd.get_variable(pkgconfig: 'systemduserunitdir',
+		pkgconfig_define: ['prefix', get_option('prefix')])
+	conf_data.set('systemd_service', 'SystemdService=' + service_file)
+
+	install_data(
+		'contrib' / 'systemd' / service_file,
+		install_dir: user_unit_dir
+	)
+endif
 
 configure_file(
 	configuration: conf_data,
diff --git a/meson_options.txt b/meson_options.txt
index 88e6c47e..2a5ddcc0 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -4,3 +4,4 @@ option('man-pages', type: 'feature', value: 'auto', description: 'Generate and i
 option('fish-completions', type: 'boolean', value: false, description: 'Install fish completions')
 option('zsh-completions', type: 'boolean', value: false, description: 'Install zsh completions')
 option('bash-completions', type: 'boolean', value: false, description: 'Install bash completions')
+option('systemd', type: 'feature', value: 'auto', description: 'Install systemd user service unit')