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Mads Kiilerich

celerypylons: wrap celery import so we always get the right environment variables set and check configuration

Get rid of magic ... or at least document and encapsulate it.

Before, celerypylons would set the environment variables that made it possible
to import Celery after Pylons had been configured.

Now, the module will import Celery ... and verify that Pylons has been
configured.

(A next stop could be to move things around so this got tied closely to
initializing Pylons. Or something.)

#!/bin/sh -e
########################################
#### THIS IS A DEBIAN INIT.D SCRIPT ####
########################################
 
### BEGIN INIT INFO
# Provides:          kallithea          
# Required-Start:    $all
# Required-Stop:     $all
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: starts instance of kallithea
# Description:       starts instance of kallithea using start-stop-daemon
### END INIT INFO
 
APP_NAME="kallithea"
APP_HOMEDIR="opt"
APP_PATH="/$APP_HOMEDIR/$APP_NAME"
 
CONF_NAME="production.ini"
 
PID_PATH="$APP_PATH/$APP_NAME.pid"
LOG_PATH="$APP_PATH/$APP_NAME.log"
 
PYTHON_PATH="/$APP_HOMEDIR/$APP_NAME-venv"
 
RUN_AS="root"
 
DAEMON="$PYTHON_PATH/bin/paster"
 
DAEMON_OPTS="serve --daemon \
 --user=$RUN_AS \
 --group=$RUN_AS \
 --pid-file=$PID_PATH \
 --log-file=$LOG_PATH  $APP_PATH/$CONF_NAME"
 
 
start() {
  echo "Starting $APP_NAME"
  PYTHON_EGG_CACHE="/tmp" start-stop-daemon -d $APP_PATH \
      --start --quiet \
      --pidfile $PID_PATH \
      --user $RUN_AS \
      --exec $DAEMON -- $DAEMON_OPTS
}
 
stop() {
  echo "Stopping $APP_NAME"
  start-stop-daemon -d $APP_PATH \
      --stop --quiet \
      --pidfile $PID_PATH || echo "$APP_NAME - Not running!"
 
  if [ -f $PID_PATH ]; then
    rm $PID_PATH
  fi
}
 
status() {
  echo -n "Checking status of $APP_NAME ... "
  pid=`cat $PID_PATH`
  status=`ps ax | grep $pid | grep -ve grep`
  if [ "$?" -eq 0 ]; then
    echo "running"
  else
    echo "NOT running"
  fi
}
 
case "$1" in
  status)
   status
    ;;
  start)
    start
    ;;
  stop)
    stop
    ;;
  restart)
    echo "Restarting $APP_NAME"
    ### stop ###
    stop
    wait
    ### start ###
    start
    ;;
  *)
    echo "Usage: $0 {start|stop|restart}"
    exit 1
esac