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import signal
import shutil, os, errno
from cStringIO import StringIO
from twisted.internet import defer, reactor, protocol
from twisted.python import log, util
from buildbot import master, interfaces
from buildbot.slave import bot
from buildbot.buildslave import BuildSlave
from buildbot.process.builder import Builder
from buildbot.process.base import BuildRequest, Build
from buildbot.process.buildstep import BuildStep
from buildbot.sourcestamp import SourceStamp
from buildbot.status import builder
from buildbot.process.properties import Properties
class _PutEverythingGetter(protocol.ProcessProtocol):
def __init__(self, deferred, stdin):
self.deferred = deferred
self.outBuf = StringIO()
self.errBuf = StringIO()
self.outReceived = self.outBuf.write
self.errReceived = self.errBuf.write
self.stdin = stdin
def connectionMade(self):
if self.stdin is not None:
self.transport.write(self.stdin)
self.transport.closeStdin()
def processEnded(self, reason):
out = self.outBuf.getvalue()
err = self.errBuf.getvalue()
e = reason.value
code = e.exitCode
if e.signal:
self.deferred.errback((out, err, e.signal))
else:
self.deferred.callback((out, err, code))
def myGetProcessOutputAndValue(executable, args=(), env={}, path='.',
_reactor_ignored=None, stdin=None):
"""Like twisted.internet.utils.getProcessOutputAndValue but takes
stdin, too."""
d = defer.Deferred()
p = _PutEverythingGetter(d, stdin)
reactor.spawnProcess(p, executable, (executable,)+tuple(args), env, path)
return d
class MyBot(bot.Bot):
def remote_getSlaveInfo(self):
return self.parent.info
class MyBuildSlave(bot.BuildSlave):
botClass = MyBot
def rmtree(d):
try:
shutil.rmtree(d, ignore_errors=1)
except OSError, e:
# stupid 2.2 appears to ignore ignore_errors
if e.errno != errno.ENOENT:
raise
class RunMixin:
master = None
def rmtree(self, d):
rmtree(d)
def setUp(self):
self.slaves = {}
self.rmtree("basedir")
os.mkdir("basedir")
self.master = master.BuildMaster("basedir")
self.status = self.master.getStatus()
self.control = interfaces.IControl(self.master)
def connectOneSlave(self, slavename, opts={}):
port = self.master.slavePort._port.getHost().port
self.rmtree("slavebase-%s" % slavename)
os.mkdir("slavebase-%s" % slavename)
slave = MyBuildSlave("localhost", port, slavename, "sekrit",
"slavebase-%s" % slavename,
keepalive=0, usePTY=False, debugOpts=opts)
slave.info = {"admin": "one"}
self.slaves[slavename] = slave
slave.startService()
def connectSlave(self, builders=["dummy"], slavename="bot1",
opts={}):
# connect buildslave 'slavename' and wait for it to connect to all of
# the given builders
dl = []
# initiate call for all of them, before waiting on result,
# otherwise we might miss some
for b in builders:
dl.append(self.master.botmaster.waitUntilBuilderAttached(b))
d = defer.DeferredList(dl)
self.connectOneSlave(slavename, opts)
return d
def connectSlaves(self, slavenames, builders):
dl = []
# initiate call for all of them, before waiting on result,
# otherwise we might miss some
for b in builders:
dl.append(self.master.botmaster.waitUntilBuilderAttached(b))
d = defer.DeferredList(dl)
for name in slavenames:
self.connectOneSlave(name)
return d
def connectSlave2(self):
# this takes over for bot1, so it has to share the slavename
port = self.master.slavePort._port.getHost().port
self.rmtree("slavebase-bot2")
os.mkdir("slavebase-bot2")
# this uses bot1, really
slave = MyBuildSlave("localhost", port, "bot1", "sekrit",
"slavebase-bot2", keepalive=0, usePTY=False)
slave.info = {"admin": "two"}
self.slaves['bot2'] = slave
slave.startService()
def connectSlaveFastTimeout(self):
# this slave has a very fast keepalive timeout
port = self.master.slavePort._port.getHost().port
self.rmtree("slavebase-bot1")
os.mkdir("slavebase-bot1")
slave = MyBuildSlave("localhost", port, "bot1", "sekrit",
"slavebase-bot1", keepalive=2, usePTY=False,
keepaliveTimeout=1)
slave.info = {"admin": "one"}
self.slaves['bot1'] = slave
slave.startService()
d = self.master.botmaster.waitUntilBuilderAttached("dummy")
return d
# things to start builds
def requestBuild(self, builder):
# returns a Deferred that fires with an IBuildStatus object when the
# build is finished
req = BuildRequest("forced build", SourceStamp(), 'test_builder')
self.control.getBuilder(builder).requestBuild(req)
return req.waitUntilFinished()
def failUnlessBuildSucceeded(self, bs):
if bs.getResults() != builder.SUCCESS:
log.msg("failUnlessBuildSucceeded noticed that the build failed")
self.logBuildResults(bs)
self.failUnlessEqual(bs.getResults(), builder.SUCCESS)
return bs # useful for chaining
def logBuildResults(self, bs):
# emit the build status and the contents of all logs to test.log
log.msg("logBuildResults starting")
log.msg(" bs.getResults() == %s" % builder.Results[bs.getResults()])
log.msg(" bs.isFinished() == %s" % bs.isFinished())
for s in bs.getSteps():
for l in s.getLogs():
log.msg("--- START step %s / log %s ---" % (s.getName(),
l.getName()))
if not l.getName().endswith(".html"):
log.msg(l.getTextWithHeaders())
log.msg("--- STOP ---")
log.msg("logBuildResults finished")
def tearDown(self):
log.msg("doing tearDown")
d = self.shutdownAllSlaves()
d.addCallback(self._tearDown_1)
d.addCallback(self._tearDown_2)
return d
def _tearDown_1(self, res):
if self.master:
return defer.maybeDeferred(self.master.stopService)
def _tearDown_2(self, res):
self.master = None
log.msg("tearDown done")
# various forms of slave death
def shutdownAllSlaves(self):
# the slave has disconnected normally: they SIGINT'ed it, or it shut
# down willingly. This will kill child processes and give them a
# chance to finish up. We return a Deferred that will fire when
# everything is finished shutting down.
log.msg("doing shutdownAllSlaves")
dl = []
for slave in self.slaves.values():
dl.append(slave.waitUntilDisconnected())
dl.append(defer.maybeDeferred(slave.stopService))
d = defer.DeferredList(dl)
d.addCallback(self._shutdownAllSlavesDone)
return d
def _shutdownAllSlavesDone(self, res):
for name in self.slaves.keys():
del self.slaves[name]
return self.master.botmaster.waitUntilBuilderFullyDetached("dummy")
def shutdownSlave(self, slavename, buildername):
# this slave has disconnected normally: they SIGINT'ed it, or it shut
# down willingly. This will kill child processes and give them a
# chance to finish up. We return a Deferred that will fire when
# everything is finished shutting down, and the given Builder knows
# that the slave has gone away.
s = self.slaves[slavename]
dl = [self.master.botmaster.waitUntilBuilderDetached(buildername),
s.waitUntilDisconnected()]
d = defer.DeferredList(dl)
d.addCallback(self._shutdownSlave_done, slavename)
s.stopService()
return d
def _shutdownSlave_done(self, res, slavename):
del self.slaves[slavename]
def killSlave(self):
# the slave has died, its host sent a FIN. The .notifyOnDisconnect
# callbacks will terminate the current step, so the build should be
# flunked (no further steps should be started).
self.slaves['bot1'].bf.continueTrying = 0
bot = self.slaves['bot1'].getServiceNamed("bot")
broker = bot.builders["dummy"].remote.broker
broker.transport.loseConnection()
del self.slaves['bot1']
def disappearSlave(self, slavename="bot1", buildername="dummy",
allowReconnect=False):
# the slave's host has vanished off the net, leaving the connection
# dangling. This will be detected quickly by app-level keepalives or
# a ping, or slowly by TCP timeouts.
# simulate this by replacing the slave Broker's .dataReceived method
# with one that just throws away all data.
def discard(data):
pass
bot = self.slaves[slavename].getServiceNamed("bot")
broker = bot.builders[buildername].remote.broker
broker.dataReceived = discard # seal its ears
broker.transport.write = discard # and take away its voice
if not allowReconnect:
# also discourage it from reconnecting once the connection goes away
assert self.slaves[slavename].bf.continueTrying
self.slaves[slavename].bf.continueTrying = False
def ghostSlave(self):
# the slave thinks it has lost the connection, and initiated a
# reconnect. The master doesn't yet realize it has lost the previous
# connection, and sees two connections at once.
raise NotImplementedError
def setupBuildStepStatus(basedir):
"""Return a BuildStep with a suitable BuildStepStatus object, ready to
use."""
os.mkdir(basedir)
botmaster = None
s0 = builder.Status(botmaster, basedir)
s1 = s0.builderAdded("buildername", "buildername")
s2 = builder.BuildStatus(s1, 1)
s3 = builder.BuildStepStatus(s2)
s3.setName("foostep")
s3.started = True
s3.stepStarted()
return s3
def fake_slaveVersion(command, oldversion=None):
from buildbot.slave.registry import commandRegistry
return commandRegistry[command]
class FakeBuildMaster:
properties = Properties(masterprop="master")
class FakeBotMaster:
parent = FakeBuildMaster()
def makeBuildStep(basedir, step_class=BuildStep, **kwargs):
bss = setupBuildStepStatus(basedir)
ss = SourceStamp()
setup = {'name': "builder1", "slavename": "bot1",
'builddir': "builddir", 'factory': None}
b0 = Builder(setup, bss.getBuild().getBuilder())
b0.botmaster = FakeBotMaster()
br = BuildRequest("reason", ss, 'test_builder')
b = Build([br])
b.setBuilder(b0)
s = step_class(**kwargs)
s.setBuild(b)
s.setStepStatus(bss)
b.build_status = bss.getBuild()
b.setupProperties()
s.slaveVersion = fake_slaveVersion
return s
def findDir():
# the same directory that holds this script
return util.sibpath(__file__, ".")
class SignalMixin:
sigchldHandler = None
def setUpClass(self):
# make sure SIGCHLD handler is installed, as it should be on
# reactor.run(). problem is reactor may not have been run when this
# test runs.
if hasattr(reactor, "_handleSigchld") and hasattr(signal, "SIGCHLD"):
self.sigchldHandler = signal.signal(signal.SIGCHLD,
reactor._handleSigchld)
def tearDownClass(self):
if self.sigchldHandler:
signal.signal(signal.SIGCHLD, self.sigchldHandler)
# these classes are used to test SlaveCommands in isolation
class FakeSlaveBuilder:
debug = False
def __init__(self, usePTY, basedir):
self.updates = []
self.basedir = basedir
self.usePTY = usePTY
def sendUpdate(self, data):
if self.debug:
print "FakeSlaveBuilder.sendUpdate", data
self.updates.append(data)
class SlaveCommandTestBase(SignalMixin):
usePTY = False
def setUpBuilder(self, basedir):
if not os.path.exists(basedir):
os.mkdir(basedir)
self.builder = FakeSlaveBuilder(self.usePTY, basedir)
def startCommand(self, cmdclass, args):
stepId = 0
self.cmd = c = cmdclass(self.builder, stepId, args)
c.running = True
d = c.doStart()
return d
def collectUpdates(self, res=None):
logs = {}
for u in self.builder.updates:
for k in u.keys():
if k == "log":
logname,data = u[k]
oldlog = logs.get(("log",logname), "")
logs[("log",logname)] = oldlog + data
elif k == "rc":
pass
else:
logs[k] = logs.get(k, "") + u[k]
return logs
def findRC(self):
for u in self.builder.updates:
if "rc" in u:
return u["rc"]
return None
def printStderr(self):
for u in self.builder.updates:
if "stderr" in u:
print u["stderr"]
# ----------------------------------------
class LocalWrapper:
# r = pb.Referenceable()
# w = LocalWrapper(r)
# now you can do things like w.callRemote()
def __init__(self, target):
self.target = target
def callRemote(self, name, *args, **kwargs):
# callRemote is not allowed to fire its Deferred in the same turn
d = defer.Deferred()
d.addCallback(self._callRemote, *args, **kwargs)
reactor.callLater(0, d.callback, name)
return d
def _callRemote(self, name, *args, **kwargs):
method = getattr(self.target, "remote_"+name)
return method(*args, **kwargs)
def notifyOnDisconnect(self, observer):
pass
def dontNotifyOnDisconnect(self, observer):
pass
class LocalSlaveBuilder(bot.SlaveBuilder):
"""I am object that behaves like a pb.RemoteReference, but in fact I
invoke methods locally."""
_arg_filter = None
def setArgFilter(self, filter):
self._arg_filter = filter
def remote_startCommand(self, stepref, stepId, command, args):
if self._arg_filter:
args = self._arg_filter(args)
# stepref should be a RemoteReference to the RemoteCommand
return bot.SlaveBuilder.remote_startCommand(self,
LocalWrapper(stepref),
stepId, command, args)
class StepTester:
"""Utility class to exercise BuildSteps and RemoteCommands, without
really using a Build or a Bot. No networks are used.
Use this as follows::
class MyTest(StepTester, unittest.TestCase):
def testOne(self):
self.slavebase = 'testOne.slave'
self.masterbase = 'testOne.master'
sb = self.makeSlaveBuilder()
step = self.makeStep(stepclass, **kwargs)
d = self.runStep(step)
d.addCallback(_checkResults)
return d
"""
#slavebase = "slavebase"
slavebuilderbase = "slavebuilderbase"
#masterbase = "masterbase"
def makeSlaveBuilder(self):
os.mkdir(self.slavebase)
os.mkdir(os.path.join(self.slavebase, self.slavebuilderbase))
b = bot.Bot(self.slavebase, False)
b.startService()
sb = LocalSlaveBuilder("slavebuildername", False)
sb.setArgFilter(self.filterArgs)
sb.usePTY = False
sb.setServiceParent(b)
sb.setBuilddir(self.slavebuilderbase)
self.remote = LocalWrapper(sb)
return sb
workdir = "build"
def makeStep(self, factory, **kwargs):
step = makeBuildStep(self.masterbase, factory, **kwargs)
step.setBuildSlave(BuildSlave("name", "password"))
step.setDefaultWorkdir(self.workdir)
return step
def runStep(self, step):
d = defer.maybeDeferred(step.startStep, self.remote)
return d
def wrap(self, target):
return LocalWrapper(target)
def filterArgs(self, args):
# this can be overridden
return args
# ----------------------------------------
_flags = {}
def setTestFlag(flagname, value):
_flags[flagname] = value
class SetTestFlagStep(BuildStep):
"""
A special BuildStep to set a named flag; this can be used with the
TestFlagMixin to monitor what has and has not run in a particular
configuration.
"""
def __init__(self, flagname='flag', value=1, **kwargs):
BuildStep.__init__(self, **kwargs)
self.addFactoryArguments(flagname=flagname, value=value)
self.flagname = flagname
self.value = value
def start(self):
properties = self.build.getProperties()
_flags[self.flagname] = properties.render(self.value)
self.finished(builder.SUCCESS)
class TestFlagMixin:
def clearFlags(self):
"""
Set up for a test by clearing all flags; call this from your test
function.
"""
_flags.clear()
def failIfFlagSet(self, flagname, msg=None):
if not msg: msg = "flag '%s' is set" % flagname
self.failIf(_flags.has_key(flagname), msg=msg)
def failIfFlagNotSet(self, flagname, msg=None):
if not msg: msg = "flag '%s' is not set" % flagname
self.failUnless(_flags.has_key(flagname), msg=msg)
def getFlag(self, flagname):
self.failIfFlagNotSet(flagname, "flag '%s' not set" % flagname)
return _flags.get(flagname)
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