Blooming Cacti

#! /bin/sh

PATH=/sbin:/usr/sbin:/bin:/usr/bin
DESC="Timetrack server"
NAME=timetrack
RVM=/home/timetrack/.rvm/bin/rvm
RVM_EXEC_ARGS="1.8.7 exec"
RAILS_DIR=/home/timetrack/apps/timetrack/current
DAEMON=$RVM
DAEMON_ARGS="$RVM_EXEC_ARGS bundle exec unicorn -c $RAILS_DIR/config/unicorn.conf.rb -E production -D"
PIDFILE=$RAILS_DIR/tmp/pids/timetrack.pid
USER=timetrack
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

# Load the VERBOSE setting and other rcS variables
. /lib/init/vars.sh

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

# unicorn needs some environment vars
. /etc/environment

# Create /var/run dir if missing
# if [ ! -d /var/run/unicorn ]; then
#   mkdir -m 0755 /var/run/unicorn
#   chown $USER /var/run/unicorn
# fi

symlink_resque() {
    ln -sfT `$RVM $RVM_EXEC_ARGS which resque | tail -1`/server/public $RAILS_DIR/public/resque
}

#
# 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
    symlink_resque
    start-stop-daemon --start --quiet --pidfile $PIDFILE --chuid $USER --exec $DAEMON --test $RAILS_DIR --chdir $RAILS_DIR > /dev/null \
        || return 1
    start-stop-daemon --start --quiet --pidfile $PIDFILE --chuid $USER --exec $DAEMON --chdir $RAILS_DIR -- \
        $DAEMON_ARGS \
        || return 2
    # Add code here, if necessary, that waits for the process to be ready
    # to handle requests from services started subsequently which depend
    # on this one.  As a last resort, sleep for some time.
}

#
# 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 --quiet --retry=TERM/30/KILL/5 --pidfile $PIDFILE
    RETVAL="$?"
    [ "$RETVAL" = 2 ] && return 2
    # Ensure the pidfile is cleared
    rm -f $PIDFILE
    return "$RETVAL"
}

#
# Function that sends a SIGHUP to the daemon/service
#
do_reload() {
    symlink_resque
    start-stop-daemon --stop --signal 1 --quiet --pidfile $PIDFILE
    return 0
}

#
# Function that sends a SIGUSR2 to the daemon/service
#
do_graceful_reload() {
    symlink_resque
    start-stop-daemon --stop --signal USR2 --quiet --pidfile $PIDFILE
    return 0
}

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 $?
       ;;
  reload)
    log_daemon_msg "Reloading $DESC" "$NAME"
    do_reload
    log_end_msg $?
    ;;
  graceful-reload)
    log_daemon_msg "Gracefully reloading $DESC" "$NAME"
    do_graceful_reload
    log_end_msg $?
    ;;
  restart)
    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|graceful-reload|reload}" >&2
    exit 3
    ;;
esac

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