diff options
Diffstat (limited to 'buildbot/buildbot/scripts/startup.py')
| -rw-r--r-- | buildbot/buildbot/scripts/startup.py | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/buildbot/buildbot/scripts/startup.py b/buildbot/buildbot/scripts/startup.py new file mode 100644 index 0000000..9472af2 --- /dev/null +++ b/buildbot/buildbot/scripts/startup.py @@ -0,0 +1,128 @@ + +import os, sys, time + +class Follower: + def follow(self): + from twisted.internet import reactor + from buildbot.scripts.reconfig import LogWatcher + self.rc = 0 + print "Following twistd.log until startup finished.." + lw = LogWatcher("twistd.log") + d = lw.start() + d.addCallbacks(self._success, self._failure) + reactor.run() + return self.rc + + def _success(self, processtype): + from twisted.internet import reactor + print "The %s appears to have (re)started correctly." % processtype + self.rc = 0 + reactor.stop() + + def _failure(self, why): + from twisted.internet import reactor + from buildbot.scripts.logwatcher import BuildmasterTimeoutError, \ + ReconfigError, BuildslaveTimeoutError, BuildSlaveDetectedError + if why.check(BuildmasterTimeoutError): + print """ +The buildmaster took more than 10 seconds to start, so we were unable to +confirm that it started correctly. Please 'tail twistd.log' and look for a +line that says 'configuration update complete' to verify correct startup. +""" + elif why.check(BuildslaveTimeoutError): + print """ +The buildslave took more than 10 seconds to start and/or connect to the +buildmaster, so we were unable to confirm that it started and connected +correctly. Please 'tail twistd.log' and look for a line that says 'message +from master: attached' to verify correct startup. If you see a bunch of +messages like 'will retry in 6 seconds', your buildslave might not have the +correct hostname or portnumber for the buildmaster, or the buildmaster might +not be running. If you see messages like + 'Failure: twisted.cred.error.UnauthorizedLogin' +then your buildslave might be using the wrong botname or password. Please +correct these problems and then restart the buildslave. +""" + elif why.check(ReconfigError): + print """ +The buildmaster appears to have encountered an error in the master.cfg config +file during startup. It is probably running with an empty configuration right +now. Please inspect and fix master.cfg, then restart the buildmaster. +""" + elif why.check(BuildSlaveDetectedError): + print """ +Buildslave is starting up, not following logfile. +""" + else: + print """ +Unable to confirm that the buildmaster started correctly. You may need to +stop it, fix the config file, and restart. +""" + print why + self.rc = 1 + reactor.stop() + + +def start(config): + os.chdir(config['basedir']) + if (not os.path.exists("buildbot.tac") and + not os.path.exists("Makefile.buildbot")): + print "This doesn't look like a buildbot base directory:" + print "No buildbot.tac or Makefile.buildbot file." + print "Giving up!" + sys.exit(1) + if config['quiet']: + return launch(config) + + # we probably can't do this os.fork under windows + from twisted.python.runtime import platformType + if platformType == "win32": + return launch(config) + + # fork a child to launch the daemon, while the parent process tails the + # logfile + if os.fork(): + # this is the parent + rc = Follower().follow() + sys.exit(rc) + # this is the child: give the logfile-watching parent a chance to start + # watching it before we start the daemon + time.sleep(0.2) + launch(config) + +def launch(config): + sys.path.insert(0, os.path.abspath(os.getcwd())) + if os.path.exists("/usr/bin/make") and os.path.exists("Makefile.buildbot"): + # Preferring the Makefile lets slave admins do useful things like set + # up environment variables for the buildslave. + cmd = "make -f Makefile.buildbot start" + if not config['quiet']: + print cmd + os.system(cmd) + else: + # see if we can launch the application without actually having to + # spawn twistd, since spawning processes correctly is a real hassle + # on windows. + from twisted.python.runtime import platformType + argv = ["twistd", + "--no_save", + "--logfile=twistd.log", # windows doesn't use the same default + "--python=buildbot.tac"] + if platformType == "win32": + argv.append("--reactor=win32") + sys.argv = argv + + # this is copied from bin/twistd. twisted-2.0.0 through 2.4.0 use + # _twistw.run . Twisted-2.5.0 and later use twistd.run, even for + # windows. + from twisted import __version__ + major, minor, ignored = __version__.split(".", 2) + major = int(major) + minor = int(minor) + if (platformType == "win32" and (major == 2 and minor < 5)): + from twisted.scripts import _twistw + run = _twistw.run + else: + from twisted.scripts import twistd + run = twistd.run + run() + |