added systemd service file, systemd helper script; wrt bug 353492

3 files changed, 147 insertions, 0 deletions

diff --git a/ChangeLog b/ChangeLog
index f380c57..aa2edd7 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,6 +1,11 @@
 # ChangeLog for gentoo-vdr-scripts
 # $Id$
 
+  19 Jan 2014; Joerg Bornkessel <hd_brummy@gentoo.org>
+  +usr/lib/systemd/system/vdr.service,
+  +usr/share/vdr/bin/vdr-systemd_helper.sh:
+  added systemd service file, systemd helper script
+
   06 Jan 2014; Joerg Bornkessel <hd_brummy@gentoo.org>
   usr/share/vdr/rcscript/pre-start-50-shutdown.sh:
   removed useless/unusable sudoers check, reported by Lucian Muresan
diff --git a/usr/lib/systemd/system/vdr.service b/usr/lib/systemd/system/vdr.service
new file mode 100644
index 0000000..18ae76f
--- /dev/null
+++ b/usr/lib/systemd/system/vdr.service
@@ -0,0 +1,36 @@
+[Unit]
+Description=Video Disk Recorder Daemon
+After=systemd-udevd.service lirc.service
+Requires=systemd-udevd.service
+DefaultDependencies=no
+
+
+[Service]
+User=vdr
+# this will collect the parameters and set them into the VDR_OPTS
+# variable in the EnvironmentFile
+ExecStartPre=/usr/share/vdr/bin/vdr-systemd_helper.sh --start-pre
+
+
+# this is where we get our parameters (still manageable
+# in the /etc/conf.d/vdr.* files
+EnvironmentFile=/var/vdr/tmp/systemd_env
+
+# start VDR with our desired parameters, please disable the
+# internal watchdog by setting the timeout to 0
+ExecStart=/usr/bin/vdr $VDR_OPTS
+
+# execute addons/plugins scripts meant to be run afer starting
+ExecStartPost=/usr/share/vdr/bin/vdr-systemd_helper.sh --start-post
+
+# execute addons/plugins scripts meant to be run before stopping
+ExecStop=/usr/share/vdr/bin/vdr-systemd_helper.sh --stop-pre
+
+# execute final scripts
+ExecStopPost=/usr/share/vdr/bin/vdr-systemd_helper.sh --stop-post
+
+Restart=always
+
+
+[Install]
+WantedBy=multi-user.target
diff --git a/usr/share/vdr/bin/vdr-systemd_helper.sh b/usr/share/vdr/bin/vdr-systemd_helper.sh
new file mode 100644
index 0000000..14ab6b8
--- /dev/null
+++ b/usr/share/vdr/bin/vdr-systemd_helper.sh
@@ -0,0 +1,106 @@
+#!/bin/sh
+
+# VDR helper script for using a systemd unit together
+# with media-tv/gentoo-vdr-scripts
+#
+# Copyright 1999-2014, Lucian Muresan < lucianm AT users DOT sourceforge DOT net >
+# inspired by the old OpenRC script /etc/init.d/vdr by Mathias Schwarzott
+
+# Distributed under the terms of the GNU General Public License v2
+
+# read our main options
+. /etc/conf.d/vdr
+. /etc/conf.d/vdr.watchdogd
+
+# inspired by the old OpenRC script /etc/init.d/vdr:
+cd /var/vdr
+unset MAIL
+. /usr/share/vdr/inc/functions.sh
+include rc-functions
+include plugin-functions
+init_tmp_dirs
+VDR_LOG_FILE="${PL_TMP}/vdr-start-log"
+# this is the environment file to pass user and parameters to the systemd unit file
+SYSTEMD_ENV_FILE="${PL_TMP}/systemd_env"
+
+#common_init
+
+# dummy functions to make the rest of gentoo-vdr-scripts happy,
+# as we do not want to rely on openrc's implementations of these
+# commands:
+ebegin() {
+	vdr_log "ACTION: $@"
+}
+
+eend() {
+	vdr_log "RESULT: $@"
+}
+
+ewarn() {
+	vdr_log "WARN:   $@"
+}
+
+einfo() {
+	vdr_log "INFO:   $@"
+}
+
+
+# some additional logging functions
+eerror() {
+	vdr_log "ERROR:  $@"
+}
+
+eexitfail() {
+	eerror "$@"
+	exit 1
+}
+
+
+clear_logfile() {
+	rm -f "${VDR_LOG_FILE}"
+	printf "" > "${VDR_LOG_FILE}"
+}
+
+#
+# Used to log error-messages in startscript to show them on
+# OSD later when choosing apropriate point in commands.
+#
+
+vdr_log()
+{
+	echo "$@" >> "${VDR_LOG_FILE}"
+}
+
+#
+#
+# Depending on $1, we execute the scripts needed
+# before/after starting, or before/after stopping VDR,
+# and exit with non-zero error code on failure, in such
+# way that the systemd unit will fail and the problems
+# have to be investigated in logs, journal, or even
+# by executing these parts of the script manually in
+# the console as user 'vdr'
+if [ "$1" = "--start-pre" ]; then
+	ebegin "--start-pre"
+	clear_logfile
+	init_params
+	init_plugin_loader start || eexitfail "init_plugin_loader start"
+	load_addons_prefixed pre-start || eexitfail "load_addons_prefixed pre-start"
+	# these options are what we need to start VDR from the systemd unit file
+	echo "VDR_OPTS=\"${vdr_opts}\"" > ${SYSTEMD_ENV_FILE}
+	sync
+	eend "--start-pre"
+elif [ "$1" = "--start-post" ]; then
+	ebegin "--start-post"
+	load_addons_prefixed post-start || eexitfail "load_addons_prefixed post-start"
+	eend "--start-post"
+elif [ "$1" = "--stop-pre" ]; then
+	ebegin "--stop-pre"
+	init_plugin_loader stop || eexitfail "init_plugin_loader stop"
+	load_addons_prefixed pre-stop || eexitfail "load_addons_prefixed pre-stop"
+	eend "--stop-pre"
+elif [ "$1" = "--stop-post" ]; then
+	ebegin "--stop-post"
+	load_addons_prefixed post-stop || eexitfail "load_addons_prefixed post-stop"
+	eend "--stop-post"
+fi