gistfile1.sh

#!/bin/bash 
### BEGIN INIT INFO
#
# Provides : resque-env
# Required-Start : 
# Required-Stop  : 
# Default-Start     : 2 3 4 5
# Default-Stop      : 0 1 6
# Short-Description : Resque worker via init.d (assumes you have Ruby, and a plugin to allow wildcards in queue names)
# Description : see Short-Description, brah
#
### END INIT INFO

PROG="rake"
NICE_NAME="resque"
PROG_DIR="/usr/local/bin"
USER="sardaukar"
PROG_PATH="/home/$USER/app/current"
PID_PATH="/var/run/"
RAILS_ENV="production"

capitalize_first ()          
{                            
  string0="$@"               
  firstchar=${string0:0:1}   
  string1=${string0:1}       
  FirstChar=`echo "$firstchar" | tr a-z A-Z`
  echo "$FirstChar$string1"  
}

toUpper() {
echo $1 | tr  "[:lower:]" "[:upper:]"
}

RAILS_ENV_1ST=`capitalize_first $RAILS_ENV`
RAILS_ENV_HI=`toUpper $RAILS_ENV`

PROG_ARGS="environment resque:work QUEUE='*_$RAILS_ENV_HI'" 
PID_FILE="$PID_PATH/$NICE_NAME-$RAILS_ENV_HI.pid"

start() {
    if [ -e "$PID_FILE" ]; then
        echo "Error! $RAILS_ENV_1ST Resque worker is currently running, or the pid file in $PID_PATH is stale! Sorry it didn't work out, brah." 1>&2
        exit 1
    else
        su $USER -c "cd $PROG_PATH && $PROG_DIR/$PROG $PROG_ARGS RAILS_ENV=$RAILS_ENV 2>&1 >/dev/null &" &
				
        echo "Hold on, brah - starting up that worker for you"
        
	while [[ $WORKER_PID == "" ]]
        do
	  WORKER_PID=`ps a | grep "Waiting for" | grep $RAILS_ENV_HI | ruby -e "puts STDIN.read.split(' ').first || ''"` 
          sleep 1
          echo -n "."
        done
        
	echo $WORKER_PID > "$PID_FILE"

        echo "$RAILS_ENV_1ST Resque worker started, brah! PID is $WORKER_PID, btw."
    fi
}

stop() {
    if [ -e "$PID_FILE" ]; then
        pid=`cat "$PID_FILE"`
        kill $pid > /dev/null 2>&1  # not using -9 so as not to have output
        sleep 7 # I should really check if the PID is still up here...
        rm "$PID_FILE"
        
        echo "$RAILS_ENV_HI Resque worker stopped, brah!"
    else
        echo "Error! $RAILS_ENV_1ST Resque worker is not running! C'mon, brah!" 1>&2
        exit 1
    fi
}

if [ "$(id -u)" != "0" ]; then
    echo "This script must be run as root, brah!" 1>&2
    exit 1
fi

case "$1" in
    start)
        start
        exit 0
    ;;
    stop)
        stop
        exit 0
    ;;
    reload|restart|force-reload)
        stop
        start
        exit 0
    ;;
    **)
        echo "Yo, brah. Usage: $0 {start|stop|reload}" 1>&2
        exit 1
    ;;
esac