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# This file is part of Buildbot. Buildbot 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, version 2.
#
# 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., 51
# Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
# Copyright Buildbot Team Members
from __future__ import with_statement
import os
import signal
import platform
from twisted.internet import reactor
from buildbot.scripts.logwatcher import LogWatcher, BuildmasterTimeoutError, \
ReconfigError
from buildbot.util import in_reactor
class Reconfigurator:
rc = 0
def run(self, basedir, quiet):
# Returns "Microsoft" for Vista and "Windows" for other versions
if platform.system() in ("Windows", "Microsoft"):
print "Reconfig (through SIGHUP) is not supported on Windows."
print "The 'buildbot debugclient' tool can trigger a reconfig"
print "remotely, but requires Gtk+ libraries to run."
return
with open(os.path.join(basedir, "twistd.pid"), "rt") as f:
self.pid = int(f.read().strip())
if quiet:
os.kill(self.pid, signal.SIGHUP)
return
# keep reading twistd.log. Display all messages between "loading
# configuration from ..." and "configuration update complete" or
# "I will keep using the previous config file instead.", or until
# 10 seconds have elapsed.
self.sent_signal = False
reactor.callLater(0.2, self.sighup)
lw = LogWatcher(os.path.join(basedir, "twistd.log"))
d = lw.start()
d.addCallbacks(self.success, self.failure)
d.addBoth(lambda _ : self.rc)
return d
def sighup(self):
if self.sent_signal:
return
print "sending SIGHUP to process %d" % self.pid
self.sent_signal = True
os.kill(self.pid, signal.SIGHUP)
def success(self, res):
print """
Reconfiguration appears to have completed successfully.
"""
def failure(self, why):
self.rc = 1
if why.check(BuildmasterTimeoutError):
print "Never saw reconfiguration finish."
elif why.check(ReconfigError):
print """
Reconfiguration failed. Please inspect the master.cfg file for errors,
correct them, then try 'buildbot reconfig' again.
"""
elif why.check(IOError):
# we were probably unable to open the file in the first place
self.sighup()
else:
print "Error while following twistd.log: %s" % why
@in_reactor
def reconfig(config):
basedir = config['basedir']
quiet = config['quiet']
r = Reconfigurator()
return r.run(basedir, quiet)
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