Hack:SystemV Init

From Music Player Daemon Community Wiki

• Description: System V init script to start and stop MPD
• Author: Henrik Gebauer
• Webpage: www.henrikgebauer.de.vu
• Licence: GNU General Public Licence
• Features: keep playlist and position, autoplay, soundwrapper possibility
• Requires: mpc
• Source:

#!/bin/sh
#
# Music Player Daemon System V Script
# 
# Copyright (C) 2005 Henrik Gebauer <mailto:henrik.gebauerATweb.de>
# This software may be distributed under the terms of the GNU General Public License,
# version 2 or any later version

# <CONFIG>
wrapper=               # soundwrapper (leave blank if none)
mpdconf=/etc/mpd.conf
autoplay=1             # play automatically
forceplay=0            # play even if music was stopped at shutdown
# </CONFIG>

. /etc/rc.d/init.d/functions
PATH=/usr/bin:/usr/local/bin:$PATH

# Verzeichnis mit Playlists
pldir=$(grep playlist_directory $mpdconf|sed "s/^ *\\w\\+ \\+//"|xargs echo)

case "$1" in
  start)
      echo -n "Starte Music-Player-Daemon: " #action
      if $wrapper mpd > /dev/null; then
          echo $(ps -C mpd --format "%p" --no-headers) > /var/run/mpd.pid
          touch /var/lock/subsys/mpd
          # Musik starten
          mpc load .current > /dev/null
          pos=$(head -n1 "$pldir/.mpd.pos")
          mpc play "$pos" > /dev/null
          # wenn nicht gespielt werden soll
          [ $autoplay -eq 0 -o "$(tail -n1 $pldir/.mpd.pos)" = "stop" ] && mpc stop > /dev/null
      else
          echo_failure
      fi
      echo
      ;;
  stop)
      echo -n "Stoppe Music-Player-Daemon: "
      if mpc > /dev/null 2> /dev/null; then
          # Playlist speichern
          [ -f $pldir/.current.m3u ] && rm $pldir/.current.m3u
          mpc save .current > /dev/null 2> /dev/null 

          # Wird gespielt?
          tmp=$(mpc|head -n2|tail -n1|sed "s/^.\+\#\([0-9]\+\)\/.\+$/\\1/"|grep volume)
          if [ "$tmp" = "" ]; then
              spielt=1
          else
              spielt=0
              # Damit mpc weitere Informationen ausgibt:
              mpc play > /dev/null 2> /dev/null
          fi 

          # aktuelle Position
          pos=$(mpc|head -n2|tail -n1|sed "s/^.\+\#\([0-9]\+\)\/.\+$/\\1/")
          echo $pos > $pldir/.mpd.pos
          if [ $forceplay -eq 0 -a $spielt -eq 0 ]; then
              echo "stop" >> $pldir/.mpd.pos
          else
              echo "play" >> $pldir/.mpd.pos
          fi  

          # PID feststellen
          pid=
          read line < /var/run/mpd.pid
          for p in $line; do 
              [ -d /proc/$p ] && pid="$pid $p"
          done

          # Prozess beenden
          kill $pid

          # PID- und Lock-Dateien lschen
          rm -f /var/run/mpd.pid
          rm -f /var/lock/subsys/mpd
          echo_success
      else
          echo_failure
      fi
      echo
      ;;
  restart)
      $0 stop
      $0 start
      ;;
  *)
      gprintf "Usage: %s {start|stop|restart}\n" "$0"
      exit 1
      ;;
esac

exit 0