Centos init.d script for Phabricator PHD

phd

#!/bin/sh
### BEGIN INIT INFO
# Provides:          phd
# Required-Start:    $remote_fs $syslog
# Required-Stop:     $remote_fs $syslog
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: phabricator
# Description:       manages phd
### END INIT INFO

# Author: Joshua Hogendorn <[email protected]>
# Original Author: Alexander Reitzel <[email protected]>
# Do NOT "set -e"

# source function library
. /etc/rc.d/init.d/functions

PATH="/sbin:/usr/sbin:/bin:/usr/bin"
DESC="Phabricator Daemons"
NAME="phd"
USER="phabricator"
DAEMON="/opt/phabricator/bin/${NAME}"
SCRIPTNAME="/etc/init.d/${NAME}"
LOCKFILE="/var/lock/subsys/${NAME}"

[ -x "${DAEMON}" ] || exit 4

run_as_user()
{
    OUTPUT=$(sudo -u "${USER}" -s /bin/bash -c "${1} 2>&1")
    return $?
}

is_running()
{
    if run_as_user "${DAEMON} status"; then
        return 0
    else
        return 1
    fi
}

do_start()
{
    if is_running; then
        return 1
    fi

    if ! run_as_user "${DAEMON} start"; then
        RETVAL=1
        return 1
    fi

    RETVAL=0
    touch "$LOCKFILE"
    return 0
}

do_stop()
{
    if ! is_running; then
        return 1
    fi

    if ! run_as_user "${DAEMON} stop"; then
        RETVAL=1
        return 1
    fi

    RETVAL=0
    rm -f "$LOCKFILE"
    return 0
}

case "${1}" in
    start)
        echo -n $"Starting ${DESC}: "
        do_start && success || failure
        echo
        ;;
    stop)
        echo -n $"Stopping ${DESC}: "
        do_stop && success || failure
        echo
        ;;
    status)
        if is_running; then
            echo "${DESC} are running."
            exit 0
        elif [ -e "$LOCKFILE" ]; then
            echo "${DESC} are not running but lockfile still exists."
            exit 2
        else
            echo "${DESC} are not running or may be in an unknown state."
            echo "For more info, check the output of \"${DAEMON} status\""
            exit 4
        fi
        ;;
    restart)
        echo -n $"Restarting ${DESC}: "
        do_stop && sleep 3 # The phd controller is a bit async so hack around that by waiting
        do_start && success || failure
        echo
        ;;
    *)
        echo "Usage: ${SCRIPTNAME} {start|stop|status|restart}" >&2
        exit 3
        ;;
esac

exit $RETVAL