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#!/bin/sh
#
## Don't edit this file
## Edit user configuation in /etc/default/headphones to change
##
## Make sure init script is executable
## sudo chmod +x /opt/headphones/init.ubuntu
##
## Install the init script
## sudo ln -s /opt/headphones/init.ubuntu /etc/init.d/headphones
##
## Create the headphones daemon user:
## sudo adduser --system --no-create-home headphones
##
## Make sure /opt/headphones is owned by the headphones user
## sudo chown headphones:nogroup -R /opt/headphones
##
## Touch the default file to stop the warning message when starting
## sudo touch /etc/default/headphones
##
## To start Headphones automatically
## sudo update-rc.d headphones defaults
##
## To start/stop/restart Headphones
## sudo service headphones start
## sudo service headphones stop
## sudo service headphones restart
##
## HP_USER= #$RUN_AS, username to run headphones under, the default is headphones
## HP_HOME= #$APP_PATH, the location of Headphones.py, the default is /opt/headphones
## HP_DATA= #$DATA_DIR, the location of headphones.db, cache, logs, the default is /opt/headphones
## HP_PIDFILE= #$PID_FILE, the location of headphones.pid, the default is /var/run/headphones/headphones.pid
## PYTHON_BIN= #$DAEMON, the location of the python binary, the default is /usr/bin/python
## HP_OPTS= #$EXTRA_DAEMON_OPTS, extra cli option for headphones, i.e. " --config=/home/headphones/config.ini"
## SSD_OPTS= #$EXTRA_SSD_OPTS, extra start-stop-daemon option like " --group=users"
## HP_PORT= #$PORT_OPTS, hardcoded port for the webserver, overrides value in config.ini
##
## EXAMPLE if want to run as different user
## add HP_USER=username to /etc/default/headphones
## otherwise default headphones is used
#
### BEGIN INIT INFO
# Provides: headphones
# Required-Start: $local_fs $network $remote_fs
# Required-Stop: $local_fs $network $remote_fs
# Should-Start: $NetworkManager
# Should-Stop: $NetworkManager
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: starts instance of Headphones
# Description: starts instance of Headphones using start-stop-daemon
### END INIT INFO
# Script name
NAME=headphones
# App name
DESC=Headphones
SETTINGS_LOADED=FALSE
. /lib/lsb/init-functions
# Source Headphones configuration
if [ -f /etc/default/headphones ]; then
SETTINGS=/etc/default/headphones
else
log_warning_msg "/etc/default/headphones not found using default settings.";
fi
check_retval() {
if [ $? -eq 0 ]; then
log_end_msg 0
return 0
else
log_end_msg 1
exit 1
fi
}
load_settings() {
if [ $SETTINGS_LOADED != "TRUE" ]; then
. $SETTINGS
## The defaults
# Run as username
RUN_AS=${HP_USER-headphones}
# Path to app HP_HOME=path_to_app_Headphones.py
APP_PATH=${HP_HOME-/opt/headphones}
# Data directory where headphones.db, cache and logs are stored
DATA_DIR=${HP_DATA-/opt/headphones}
# Path to store PID file
PID_FILE=${HP_PIDFILE-/var/run/headphones/headphones.pid}
# Path to python bin
DAEMON=${PYTHON_BIN-/usr/bin/python}
# Extra daemon option like: HP_OPTS=" --config=/home/headphones/config.ini"
EXTRA_DAEMON_OPTS=${HP_OPTS-}
# Extra start-stop-daemon option like START_OPTS=" --group=users"
EXTRA_SSD_OPTS=${SSD_OPTS-}
# Hardcoded port to run on, overrides config.ini settings
[ -n "$HP_PORT" ] && {
PORT_OPTS=" --port=${HP_PORT} "
}
DAEMON_OPTS=" Headphones.py --quiet --daemon --nolaunch --pidfile=${PID_FILE} --datadir=${DATA_DIR} ${PORT_OPTS}${EXTRA_DAEMON_OPTS}"
SETTINGS_LOADED=TRUE
fi
[ -x $DAEMON ] || {
log_warning_msg "$DESC: Can't execute daemon, aborting. See $DAEMON";
return 1;}
return 0
}
load_settings || exit 0
is_running () {
# returns 1 when running, else 0.
if [ -e $PID_FILE ]; then
PID=`cat $PID_FILE`
RET=$?
[ $RET -gt 1 ] && exit 1 || return $RET
else
return 1
fi
}
handle_pid () {
PID_PATH=`dirname $PID_FILE`
[ -d $PID_PATH ] || mkdir -p $PID_PATH && chown -R $RUN_AS $PID_PATH > /dev/null || {
log_warning_msg "$DESC: Could not create $PID_FILE, See $SETTINGS, aborting.";
return 1;}
if [ -e $PID_FILE ]; then
PID=`cat $PID_FILE`
if ! kill -0 $PID > /dev/null 2>&1; then
log_warning_msg "Removing stale $PID_FILE"
rm $PID_FILE
fi
fi
}
handle_datadir () {
[ -d $DATA_DIR ] || mkdir -p $DATA_DIR && chown -R $RUN_AS $DATA_DIR > /dev/null || {
log_warning_msg "$DESC: Could not create $DATA_DIR, See $SETTINGS, aborting.";
return 1;}
}
handle_updates () {
chown -R $RUN_AS $APP_PATH > /dev/null || {
log_warning_msg "$DESC: $APP_PATH not writable by $RUN_AS for web-updates";
return 0; }
}
start_headphones () {
handle_pid
handle_datadir
handle_updates
if ! is_running; then
log_daemon_msg "Starting $DESC"
start-stop-daemon -o -d $APP_PATH -c $RUN_AS --start $EXTRA_SSD_OPTS --pidfile $PID_FILE --exec $DAEMON -- $DAEMON_OPTS
check_retval
else
log_success_msg "$DESC: already running (pid $PID)"
fi
}
stop_headphones () {
if is_running; then
log_daemon_msg "Stopping $DESC"
start-stop-daemon -o --stop --pidfile $PID_FILE --retry 15
check_retval
else
log_success_msg "$DESC: not running"
fi
}
case "$1" in
start)
start_headphones
;;
stop)
stop_headphones
;;
restart|force-reload)
stop_headphones
start_headphones
;;
*)
N=/etc/init.d/$NAME
echo "Usage: $N {start|stop|restart|force-reload}" >&2
exit 1
;;
esac
exit 0