#!/bin/sh
### BEGIN INIT INFO
# Provides:          ikiwiki-hosting-web
# Required-Start:    $remote_fs $syslog
# Required-Stop:     $remote_fs $syslog
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: git daemon
# Description:       git daemon init script for use with ikiwiki-hosting-web
### END INIT INFO

. /etc/ikiwiki-hosting/ikiwiki-hosting.conf

PATH=/sbin:/usr/sbin:/bin:/usr/bin
DESC="ikiwiki-hosting-web"
NAME="ikiwiki-hosting-web"
DAEMON="/usr/lib/git-core/git-daemon"
# git daemon is run in virtual host mode, so for git://example.com/*,
# it looks in /var/lib/ikiwiki-hosting-web/git/example.com
DAEMON_ARGS="--reuseaddr --interpolated-path=$gitdaemondir/%H"
PIDFILE=/var/run/$NAME.pid
SCRIPTNAME=/etc/init.d/$NAME

# Exit if the package is not installed
[ -x "$DAEMON" ] || exit 0

# Read configuration variable file if it is present
[ -r /etc/default/$NAME ] && . /etc/default/$NAME

# Define LSB log_* functions.
# Depend on lsb-base (>= 3.0-6) to ensure that this file is present.
. /lib/lsb/init-functions

#
# Function that starts the daemon/service
#
do_start()
{
	# Return
	#   0 if daemon has been started
	#   1 if daemon was already running
	#   2 if daemon could not be started
	start-stop-daemon --start --chuid $gitdaemonuser:$gitdaemonuser --quiet --pidfile $PIDFILE --exec $DAEMON --test > /dev/null \
		|| return 1

	export GIT_CONFIG_COUNT=1
	export GIT_CONFIG_KEY_0=safe.directory
	export GIT_CONFIG_VALUE_0='*'
	start-stop-daemon --start --chuid $gitdaemonuser:$gitdaemonuser --quiet --make-pidfile --pidfile $PIDFILE --background --exec $DAEMON -- \
		$DAEMON_ARGS \
		|| return 2
}

#
# Function that stops the daemon/service
#
do_stop()
{
	# Return
	#   0 if daemon has been stopped
	#   1 if daemon was already stopped
	#   2 if daemon could not be stopped
	#   other if a failure occurred
	start-stop-daemon --stop --chuid $gitdaemonuser:$gitdaemonuser --quiet --retry=TERM/30/KILL/5 --pidfile $PIDFILE --exec $DAEMON
	RETVAL="$?"
	[ "$RETVAL" = 2 ] && return 2
	return "$RETVAL"
}

case "$1" in
  start)
	[ "$VERBOSE" != no ] && log_daemon_msg "Starting $DESC" "$NAME"
	do_start
	case "$?" in
		0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
		2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
	esac
	;;
  stop)
	[ "$VERBOSE" != no ] && log_daemon_msg "Stopping $DESC" "$NAME"
	do_stop
	case "$?" in
		0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
		2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
	esac
	;;
  status)
       status_of_proc "$DAEMON" "$NAME" && exit 0 || exit $?
       ;;
  restart|force-reload)
	log_daemon_msg "Restarting $DESC" "$NAME"
	do_stop
	case "$?" in
	  0|1)
		do_start
		case "$?" in
			0) log_end_msg 0 ;;
			1) log_end_msg 1 ;; # Old process is still running
			*) log_end_msg 1 ;; # Failed to start
		esac
		;;
	  *)
	  	# Failed to stop
		log_end_msg 1
		;;
	esac
	;;
  *)
	echo "Usage: $SCRIPTNAME {start|stop|status|restart|force-reload}" >&2
	exit 3
	;;
esac

:
