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#! /usr/bin/env python2.4
##############################################################################
#
# Copyright (c) 2001, 2002 Zope Corporation and Contributors.
# All Rights Reserved.
#
# This software is subject to the provisions of the Zope Public License,
# Version 2.1 (ZPL). A copy of the ZPL should accompany this distribution.
# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
# FOR A PARTICULAR PURPOSE.
#
##############################################################################
"""Start script for Launchpad: loads configuration and starts the server.
$Id: z3.py 25266 2004-06-04 21:25:45Z jim $
"""
import sys
if sys.version_info < (2, 4, 0):
print ("ERROR: Your python version is not supported by Launchpad."
"Launchpad needs Python 2.4 or greater. You are running: "
+ sys.version)
sys.exit(1)
import os
import os.path
import atexit
import signal
import subprocess
import time
from zope.app.server.main import main
from configs import generate_overrides
basepath = filter(None, sys.path)
# Disgusting hack to use our extended config file schema rather than the
# Z3 one. TODO: Add command line options or other to Z3 to enable overriding
# this -- StuartBishop 20050406
from zdaemon.zdoptions import ZDOptions
ZDOptions.schemafile = os.path.abspath(os.path.join(
os.path.dirname(__file__), 'lib', 'canonical',
'config', 'schema.xml'))
def start_librarian():
# Imported here as path is not set fully on module load
from canonical.config import config
# Don't run the Librarian if it wasn't asked for. We only want it
# started up developer boxes really, as the production Librarian
# doesn't use this startup script.
if not config.librarian.server.launch:
return
if not os.path.isdir(config.librarian.server.root):
os.makedirs(config.librarian.server.root, 0700)
pidfile = os.path.join(config.librarian.server.root, 'librarian.pid')
tacfile = os.path.abspath(os.path.join(
os.path.dirname(__file__), 'daemons', 'librarian.tac'
))
ver = '%d.%d' % sys.version_info[:2]
args = [
"twistd%s" % ver,
"--no_save",
"--nodaemon",
"--python", tacfile,
"--pidfile", pidfile,
"--logfile", "-",
"--prefix", "Librarian",
]
if config.librarian.server.spew:
args.append("--spew")
librarian_process = subprocess.Popen(args, stdin=subprocess.PIPE)
librarian_process.stdin.close()
# I've left this off - we still check at termination and we can
# avoid the startup delay. -- StuartBishop 20050525
#time.sleep(1)
#if librarian_process.poll() != None:
# raise RuntimeError(
# "Librarian did not start: %d" % librarian_process.returncode
# )
def stop_librarian():
if librarian_process.poll() is None:
os.kill(librarian_process.pid, signal.SIGTERM)
librarian_process.wait()
else:
print >> sys.stderr, "*** ERROR: Librarian died prematurely!"
print >> sys.stderr, "*** Return code was %d" % (
librarian_process.returncode,
)
atexit.register(stop_librarian)
def make_pidfile():
"""Create a pidfile so we can be killed easily.
Registers an atexit callback to remove the file on termination.
"""
pidfile = os.path.join(os.path.dirname(__file__), 'launchpad.pid')
def nukepidfile():
if os.path.exists(pidfile):
os.unlink(pidfile)
atexit.register(nukepidfile)
f = open(pidfile, 'w')
print >> f, str(os.getpid())
f.close()
def run(argv=list(sys.argv)):
# Sort ZCML overrides for our current config
generate_overrides()
# setting python paths
program = argv[0]
src = 'lib'
here = os.path.dirname(os.path.abspath(program))
srcdir = os.path.join(here, src)
sys.path = [srcdir, here] + basepath
# We really want to replace this with a generic startup harness.
# However, this should last us until this is developed
start_librarian()
# Store our process id somewhere
make_pidfile()
main(argv[1:])
if __name__ == '__main__':
run()
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