conf: move config file to datadir

Install the config file in $PREFIX/share/pipewire so that a factory
reset can be done by wiping /etc and /home.
Add this new directory to the search path.
System wide config can still be done in /etc, user config in
$HOME/.config/pipewire/ by copying files from $PREFIX/share/pipewire

Fixes #1191

config.h.meson

@@ -395,6 +395,9 @@
 
 /* directory where config files are located */
 #mesondefine PIPEWIRE_CONFIG_DIR
+#
+/* directory where data files are located */
+#mesondefine PIPEWIRE_CONFDATADIR
 
 /* directory where plugins are located */
 #mesondefine PLUGINDIR

meson.build

@@ -37,6 +37,7 @@ pipewire_localedir = prefix / get_option('localedir')
 pipewire_sysconfdir = prefix / get_option('sysconfdir')
 
 pipewire_configdir = pipewire_sysconfdir / 'pipewire'
+pipewire_confdatadir = pipewire_datadir / 'pipewire'
 modules_install_dir = pipewire_libdir / pipewire_name
 
 if host_machine.system() == 'linux'
@@ -182,11 +183,11 @@ cdata.set('PIPEWIRE_VERSION_MAJOR', pipewire_version_major)
 cdata.set('PIPEWIRE_VERSION_MINOR', pipewire_version_minor)
 cdata.set('PIPEWIRE_VERSION_MICRO', pipewire_version_micro)
 cdata.set('PIPEWIRE_VERSION_NANO', pipewire_version_nano)
-cdata.set('PIPEWIRE_API_VERSION', '"@0@"'.format(apiversion))
+cdata.set_quoted('PIPEWIRE_API_VERSION', apiversion)
-cdata.set('PIPEWIRE_DATADIR', '"@0@"'.format(pipewire_datadir))
+cdata.set_quoted('PIPEWIRE_CONFDATADIR', pipewire_confdatadir)
-cdata.set('LOCALEDIR', '"@0@"'.format(pipewire_localedir))
+cdata.set_quoted('LOCALEDIR', pipewire_localedir)
-cdata.set('LIBDIR', '"@0@"'.format(pipewire_libdir))
+cdata.set_quoted('LIBDIR', pipewire_libdir)
-cdata.set('GETTEXT_PACKAGE', '"@0@"'.format(meson.project_name()))
+cdata.set_quoted('GETTEXT_PACKAGE', meson.project_name())
 cdata.set('PIPEWIRE_LICENSE', '"MIT"')
 cdata.set('PIPEWIRE_PACKAGE_ORIGIN', '"Unknown package origin"')
 cdata.set('PIPEWIRE_PACKAGE_NAME', '"PipeWire source release"')
@@ -195,11 +196,11 @@ cdata.set('PACKAGE_NAME', '"PipeWire"')
 cdata.set('PACKAGE_STRING', '"PipeWire @0@"'.format(pipewire_version))
 cdata.set('PACKAGE_TARNAME', '"pipewire"')
 cdata.set('PACKAGE_URL', '"http://pipewire.org"')
-cdata.set('PACKAGE_VERSION', '"@0@"'.format(pipewire_version))
+cdata.set_quoted('PACKAGE_VERSION', pipewire_version)
-cdata.set('MODULEDIR', '"@0@"'.format(modules_install_dir))
+cdata.set_quoted('MODULEDIR', modules_install_dir)
-cdata.set('PIPEWIRE_CONFIG_DIR', '"@0@"'.format(pipewire_configdir))
+cdata.set_quoted('PIPEWIRE_CONFIG_DIR', pipewire_configdir)
-cdata.set('VERSION', '"@0@"'.format(pipewire_version))
+cdata.set_quoted('VERSION', pipewire_version)
-cdata.set('PLUGINDIR', '"@0@"'.format(spa_plugindir))
+cdata.set_quoted('PLUGINDIR', spa_plugindir)
 # FIXME: --with-memory-alignment],[8,N,malloc,pagesize (default is 32)]) option
 cdata.set('MEMORY_ALIGNMENT_MALLOC', 1)
 cdata.set_quoted('PA_ALSA_PATHS_DIR', alsadatadir / 'paths')

src/daemon/filter-chain/meson.build

@@ -10,5 +10,5 @@ foreach c : conf_files
   configure_file(input : c.get(0),
                  output : c.get(1),
                  configuration : conf_config,
-                 install_dir : conf_install_dir / 'filter-chain')
+                 install_dir : pipewire_confdatadir / 'filter-chain')
 endforeach

src/daemon/media-session.d/meson.build

@@ -11,11 +11,11 @@ foreach c : conf_files
   configure_file(input : c.get(0),
                  output : c.get(1),
                  configuration : conf_config,
-                 install_dir : conf_install_dir / 'media-session.d')
+                 install_dir : pipewire_confdatadir / 'media-session.d')
 endforeach
 
 install_data(
   sources : [
     'with-jack',
     'with-pulseaudio' ],
-  install_dir : conf_install_dir / 'media-session.d')
+  install_dir : pipewire_confdatadir / 'media-session.d')

src/daemon/meson.build

@@ -14,7 +14,6 @@ conf_config.set('media_session_path', pipewire_bindir / 'pipewire-media-session'
 conf_config.set('pipewire_path', pipewire_bindir / 'pipewire')
 conf_config.set('pipewire_pulse_path', pipewire_bindir / 'pipewire-pulse')
 conf_config.set('comment', '#')
-conf_install_dir = get_option('sysconfdir') / 'pipewire'
 
 conf_config_uninstalled = conf_config
 conf_config_uninstalled.set('media_session_path',
@@ -38,7 +37,7 @@ foreach c : conf_files
   configure_file(input : c.get(0),
                  output : c.get(1),
                  configuration : conf_config,
-                 install_dir : conf_install_dir)
+                 install_dir : pipewire_confdatadir)
 endforeach
 
 configure_file(input : 'pipewire.conf.in',

src/pipewire/conf.c

@@ -104,6 +104,13 @@ static int get_read_path(char *path, size_t size, const char *prefix, const char
 		    access(path, R_OK) == 0)
 			return 1;
 	}
+	dir = PIPEWIRE_CONFDATADIR;
+	if (dir != NULL) {
+		const char *paths[] = { dir, prefix, name, NULL };
+		if (make_path(path, size, paths) == 0 &&
+		    access(path, R_OK) == 0)
+			return 1;
+	}
 	return 0;
 }