meson: added support OpenRC init system

Main repo: https://github.com/OpenRC/openrc
More info about OpenRC: https://en.wikipedia.org/wiki/OpenRC

bus/meson.build

@@ -84,6 +84,21 @@ if use_systemd
     endif
 endif
 
+if use_openrc
+    configure_file(
+        input: 'openrc/dbus.init.in',
+        output: 'dbus',
+        configuration: data_config,
+        install_dir: openrc_init_dir,
+    )
+    configure_file(
+        input: 'openrc/dbus.conf.in',
+        output: 'dbus.conf',
+        configuration: data_config,
+        install_dir: openrc_conf_dir,
+    )
+endif
+
 subdir('legacy-config')
 
 

bus/openrc/dbus.conf.in

@@ -0,0 +1,21 @@
+# This file is part of the D-Bus library.
+#
+# The D-Bus library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of the
+# License, or (at your option) any later version.
+#
+# The D-Bus library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with the D-Bus library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+
+# Start the D-Bus daemon
+DBUS_DAEMON_ENABLE="yes"
+
+# Arguments to pass to the D-Bus daemon
+DBUS_DAEMON_ARGS="--system"

bus/openrc/dbus.init.in

@@ -0,0 +1,26 @@
+#!/sbin/openrc-run
+
+description="D-Bus System Message Bus"
+
+depend() {
+    need localmount
+    after bootmisc
+}
+
+start() {
+    ebegin "Starting D-Bus System Message Bus"
+    start-stop-daemon --start --quiet --pidfile /run/dbus/pid --exec @EXPANDED_BINDIR@/dbus-daemon -- --system
+    eend $?
+}
+
+stop() {
+    ebegin "Stopping D-Bus System Message Bus"
+    start-stop-daemon --stop --quiet --pidfile /run/dbus/pid
+    eend $?
+}
+
+reload() {
+    ebegin "Reloading D-Bus System Message Bus"
+    @EXPANDED_BINDIR@/dbus-send --print-reply --system --type=method_call --dest=org.freedesktop.DBus / org.freedesktop.DBus.ReloadConfig
+    eend $?
+}

meson.build

@@ -554,6 +554,12 @@ else
 endif
 data_config.set('SYSTEMCTL', systemctl)
 
+use_openrc = get_option('openrc').enabled()
+if use_openrc
+    openrc_init_dir = get_option('sysconfdir') / 'init.d'
+    openrc_conf_dir = get_option('sysconfdir') / 'conf.d'
+endif
+
 elogind_opt = get_option('elogind')
 if use_systemd
     if elogind_opt.enabled()
@@ -1432,6 +1438,7 @@ summary_dict += {
     'Building inotify support': use_inotify,
     'Building kqueue support':  use_kqueue,
     'Building systemd support': use_systemd,
+    'Building OpenRC support':  use_openrc,
     'Building elogind support': use_elogind,
     'Traditional activation':   use_traditional_activation,
     'Building X11 code':        config.get('DBUS_BUILD_X11'),

meson_options.txt

@@ -251,6 +251,13 @@ option(
   description: 'Systemd at_console support'
 )
 
+option(
+  'openrc',
+  type: 'feature',
+  value: 'auto',
+  description: 'OpenRC init script support'
+)
+
 option(
   'test_socket_dir',
   type: 'string',