[daemon] Ship default configuration files

This commit adds plymouthd.defaults and plymouthd.conf.

The former is for distributions to override, and the latter
is for administrators to change.

scripts/plymouth-populate-initrd.in

@@ -7,6 +7,8 @@
 [ -z "$PLYMOUTH_PLUGIN_PATH" ] && PLYMOUTH_PLUGIN_PATH="$(plymouth --get-splash-plugin-path)"
 [ -z "$PLYMOUTH_LOGO_FILE" ] && PLYMOUTH_LOGO_FILE="@logofile@"
 [ -z "$PLYMOUTH_THEME_NAME" ] && PLYMOUTH_THEME_NAME=$(plymouth-set-default-theme)
+[ -z "$PLYMOUTH_CONFDIR" ] && PLYMOUTH_CONFDIR="@PLYMOUTH_CONF_DIR@"
+[ -z "$PLYMOUTH_POLICYDIR" ] && PLYMOUTH_POLICYDIR="@PLYMOUTH_POLICY_DIR@"
 
 if [ -z "$PLYMOUTH_POPULATE_SOURCE_FUNCTIONS" ]; then
 
@@ -78,6 +80,8 @@ inst ${PLYMOUTH_DATADIR}/plymouth/themes/details/details.plymouth $INITRDDIR
 inst ${PLYMOUTH_PLUGIN_PATH}/details.so $INITRDDIR
 inst ${PLYMOUTH_LOGO_FILE} $INITRDDIR
 inst @RELEASE_FILE@ $INITRDDIR
+inst ${PLYMOUTH_POLICYDIR}/plymouthd.defaults $INITRDDIR
+inst ${PLYMOUTH_CONFDIR}/plymouthd.conf $INITRDDIR
 
 if [ -z "$PLYMOUTH_THEME_NAME" ]; then
     echo "No default plymouth plugin is set" > /dev/stderr

src/plymouthd.conf

@@ -0,0 +1,3 @@
+# Administrator customizations go in this file
+#[Daemon]
+#Theme=fade-in

src/plymouthd.defaults

@@ -0,0 +1,8 @@
+# Distribution defaults. Changes to this file will get overwritten during
+# upgrades.
+[Daemon]
+Theme=fade-in
+Foo=bar
+
+[z]
+ffoo=yo