view src/sat.sh @ 2307:8fa7edd0da24

plugin Pubsub Hook: first draft: This new plugin allow to attach an external action to a Pubsub event (i.e. notification). Hook can be persitent accross restarts, or temporary (will be deleted on profile disconnection). Only Python files are handled for now. In the future, it may make sense to move hooks in a generic plugin which could be used by ad-hoc commands, messages, pubsub, etc.
author Goffi <goffi@goffi.org>
date Wed, 05 Jul 2017 15:05:47 +0200
parents 7a07f232e7cb
children a34b4fca16e2
line wrap: on
line source

#!/bin/sh

DEBUG=""
DAEMON=""
PYTHON="python2"

kill_process() {
    # $1 is the file containing the PID to kill, $2 is the process name
    if [ -f $1 ]; then
        PID=`cat $1`
        if ps -p $PID > /dev/null; then
            printf  "Terminating $2... "
            kill $PID
            while ps -p $PID > /dev/null; do
                sleep 0.2
            done
            printf "OK\n"
        else
            echo "No running process of ID $PID... removing PID file"
            rm -f $1
        fi
    else
        echo "$2 is probably not running (PID file doesn't exist)"
    fi
}

#We use python to parse config files
eval `"$PYTHON" << PYTHONEND
from sat.core.constants import Const as C
from sat.memory.memory import fixLocalDir
from ConfigParser import SafeConfigParser
from os.path import expanduser, join
import sys
import codecs
import locale

sys.stdout = codecs.getwriter(locale.getpreferredencoding())(sys.stdout)

fixLocalDir()  # XXX: tmp update code, will be removed in the future

config = SafeConfigParser(defaults=C.DEFAULT_CONFIG)
try:
    config.read(C.CONFIG_FILES)
except:
    print ("echo \"/!\\ Can't read main config ! Please check the syntax\";")
    print ("exit 1")
    sys.exit()

env=[]
env.append("PID_DIR='%s'" % join(expanduser(config.get('DEFAULT', 'pid_dir')),''))
env.append("LOG_DIR='%s'" % join(expanduser(config.get('DEFAULT', 'log_dir')),''))
env.append("APP_NAME='%s'" % C.APP_NAME)
env.append("APP_NAME_FILE='%s'" % C.APP_NAME_FILE)
print ";".join(env)
PYTHONEND
`
APP_NAME="$APP_NAME"
PID_FILE="$PID_DIR$APP_NAME_FILE.pid"
LOG_FILE="$LOG_DIR$APP_NAME_FILE.log"
RUNNING_MSG="$APP_NAME is running"
NOT_RUNNING_MSG="$APP_NAME is *NOT* running"

# if there is one argument which is "stop", then we kill SàT
if [ $# -eq 1 ];then
    if [ $1 = "stop" ];then
        kill_process $PID_FILE "$APP_NAME"
        exit 0
    elif [ $1 = "debug" ];then
        echo "Launching $APP_NAME in debug mode"
        DEBUG="--debug"
    elif [ $1 = "fg" ];then
        echo "Launching $APP_NAME in foreground mode"
        DAEMON="n"
    elif [ $1 = "status" ];then
		if [ -f $PID_FILE ]; then
			PID=`cat $PID_FILE`
			ps -p$PID 2>&1 > /dev/null
			if [ $? = 0  ];then
				echo "$RUNNING_MSG (pid: $PID)"
				exit 0
			else
				echo "$NOT_RUNNING_MSG, but a pid file is present (bad exit ?): $PID_FILE"
				exit 2
			fi
		else
			echo "$NOT_RUNNING_MSG"
			exit 1
		fi
	else
		echo "bad argument, please use one of (stop, debug, fg, status) or no argument"
		exit 1
    fi
fi

MAIN_OPTIONS="-${DAEMON}o"

#Don't change the next lines
AUTO_OPTIONS=""
ADDITIONAL_OPTIONS="--pidfile $PID_FILE --logfile $LOG_FILE $AUTO_OPTIONS $DEBUG"

log_dir=`dirname "$LOG_FILE"`
if [ ! -d $log_dir ] ; then
    mkdir $log_dir
fi

exec twistd $MAIN_OPTIONS $ADDITIONAL_OPTIONS $APP_NAME_FILE