buildbot_custom_logobserver.py

class TestLogLineObserver(util.LogLineObserver):
    path = '/tmp/tmp.log'

    def __init__(self, step):
        self.step = step
        util.LogLineObserver.__init__(self)

    def outLineReceived(self, line):
        buildnumber = self.step.getProperty('buildnumber')
        buildername = self.step.getProperty('buildername')
        with open(self.path, 'a') as f:
            f.write('%s-%s.%s: %s\n' % (
                buildername,
                self.step.name,
                buildnumber,
                line
            ))

class ShellStep(ShellCommand):
    haltOnFailure = True

    def __init__(self, **kwargs):
        ShellCommand.__init__(self, **kwargs)
self.addLogObserver('stdio', TestLogLineObserver(self))