Coverage for slave/buildslave/scripts/startup : 11%

# 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 

import os, sys, time 

class Follower: 

    def follow(self): 

        from twisted.internet import reactor 

        from buildslave.scripts.logwatcher 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 buildslave.scripts.logwatcher import BuildmasterTimeoutError, \ 

             ReconfigError, BuildslaveTimeoutError, BuildSlaveDetectedError 

        if why.check(BuildmasterTimeoutError): 

            print """ 

The buildslave 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 

buildslave, 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 buildslave, or the buildslave 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 buildslave 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 buildslave. 

""" 

        elif why.check(BuildSlaveDetectedError): 

            print """ 

Buildslave is starting up, not following logfile. 

""" 

        else: 

            print """ 

Unable to confirm that the buildslave 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 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())) 

    # 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 config['nodaemon']: 

        argv.extend(['--nodaemon']) 

    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()