Option do disable default logging and log rotating mechanism

[jollyroger]

Currently buildbot.tac files for both buildbot and buildslave are generated with predefined logging and log rotation mechanism. This results in buildbot being insensitive to --logfile twistd command-line option. However there is a need to control logging outside of buildbot instance: most administrators will want to control buildbot logging and running when installing it system-wide.

I propose to add an option to create-master and create-slave commands which will not put this piece of code inside buildbot.tac file:

# note: this line is matched against to check that this is a buildslave
# directory; do not edit it.
application = service.Application('buildslave')
try:
  from twisted.python.logfile import LogFile
  from twisted.python.log import ILogObserver, FileLogObserver
  logfile = LogFile.fromFullPath(os.path.join(basedir, "twistd.log"), rotateLength=rotateLength,
                                 maxRotatedFiles=maxRotatedFiles)
  application.setComponent(ILogObserver, FileLogObserver(logfile).emit)
except ImportError:
  # probably not yet twisted 8.2.0 and beyond, can't set log yet
  pass

[jollyroger]

Sorry, the first three lines were added accidentally, they shouldn't be here.

[Dustin J. Mitchell]

Merge branch 'bug973' of  git://github.com/jollyroger/buildbot

• 'bug973' of  git://github.com/jollyroger/buildbot: Fix ticket #973

Fixes #973

Changeset: b93c9da3680455387aac1ce8c6ed2b0def329908

[Dustin J. Mitchell]

Merge branch 'bug973' of  git://github.com/jollyroger/buildbot

• 'bug973' of  git://github.com/jollyroger/buildbot: Added missing command option, fixed output

Refs #973

Changeset: cced0f5022729e79e0c29b2620ad5b16fa342af0