pylons.sh -- fiddles with pylons

pylons.sh

#! /bin/bash


function halp () {
    cat <<-HALP
	pylons -- Starts a Pylons app, creating logs and saving a pidfile.
	 
	Usage: $( basename $0 ) [INI_FILE]
	 
	If INI_FILE is not 'development.ini', stdout and stderr are redirected 
	to logs/pylons.log.
HALP
}

function fail () {
    echo "PREDICTABLE FAILURE. $1"
    if [ "$2" ]; then halp; fi
    exit 1
}


if [ "$1" = "-h" ] || [ "$1" = "--help" ]; then
    halp; exit 0
fi

BASE="$PWD"
INI="development.ini"
if [[ "$1" != "" ]]; then
    BASE=$( dirname "$1" )
    INI="$1"
fi

ININAME=$(basename "$INI")
PIDFILE="$BASE/paste.pid"

if [[ $ININAME == "development.ini" || $ININAME == "dev.ini" ]]; then
    paster serve --reload $INI
    
else
    mkdir -p $BASE/logs
    paster serve --reload $INI >$BASE/logs/pylons.log 2>&1 &
    sleep 4
    
    ps ux | fgrep -v 'grep|awk' | awk -F '[ \n\t]+' '/paster serve/ { print $2 }' >$PIDFILE 2>/dev/null
    
    if [ ! -e $PIDFILE ] || [ -z "$(cat $PIDFILE)" ]; then
        fail "Unable to find pidfile!"
    fi
fi