#!/usr/bin/env python
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

"""A script for stopping the loggerhead process."""

import os
import sys
from optparse import OptionParser

home = os.path.realpath(os.path.dirname(__file__))
default_pidfile = os.path.join(home, 'loggerhead.pid')
parser = OptionParser(usage='usage: %prog [options]', version='%prog')
parser.add_option('-p', '--pidfile', dest="pidfile", default=default_pidfile,
                  help="override pidfile location")

options, args = parser.parse_args()
if len(args) > 0:
    parser.error('No filename arguments are used, only options.')

try:
    f = open(options.pidfile, 'r')
except IOError, e:
    print 'Pid file %s not found.' % options.pidfile
    sys.exit(1)

pid = int(f.readline())

try:
    os.kill(pid, 0)
except OSError, e:
    print 'Stale pid file; server is not running.'
    sys.exit(1)

print
print 'Shutting down previous server @ pid %d.' % pid
print

import signal
os.kill(pid, signal.SIGINT)