1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
|
# 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 types
from zope.interface import implements
from twisted.python import log, components
from twisted.python.failure import Failure
from twisted.internet import defer, error
from buildbot import interfaces
from buildbot.status.results import SUCCESS, WARNINGS, FAILURE, EXCEPTION, \
RETRY, SKIPPED, worst_status
from buildbot.status.builder import Results
from buildbot.status.progress import BuildProgress
from buildbot.process import metrics, properties
from buildbot.util.eventual import eventually
class Build(properties.PropertiesMixin):
"""I represent a single build by a single slave. Specialized Builders can
use subclasses of Build to hold status information unique to those build
processes.
I control B{how} the build proceeds. The actual build is broken up into a
series of steps, saved in the .buildSteps[] array as a list of
L{buildbot.process.step.BuildStep} objects. Each step is a single remote
command, possibly a shell command.
During the build, I put status information into my C{BuildStatus}
gatherer.
After the build, I go away.
I can be used by a factory by setting buildClass on
L{buildbot.process.factory.BuildFactory}
@ivar requests: the list of L{BuildRequest}s that triggered me
@ivar build_status: the L{buildbot.status.build.BuildStatus} that
collects our status
"""
implements(interfaces.IBuildControl)
workdir = "build"
build_status = None
reason = "changes"
finished = False
results = None
stopped = False
set_runtime_properties = True
def __init__(self, requests):
self.requests = requests
self.locks = []
# build a source stamp
self.sources = requests[0].mergeSourceStampsWith(requests[1:])
self.reason = requests[0].mergeReasons(requests[1:])
self.progress = None
self.currentStep = None
self.slaveEnvironment = {}
self.terminate = False
self._acquiringLock = None
def setBuilder(self, builder):
"""
Set the given builder as our builder.
@type builder: L{buildbot.process.builder.Builder}
"""
self.builder = builder
def setLocks(self, lockList):
# convert all locks into their real forms
self.locks = [(self.builder.botmaster.getLockFromLockAccess(access), access)
for access in lockList ]
def setSlaveEnvironment(self, env):
self.slaveEnvironment = env
def getSourceStamp(self, codebase=''):
for source in self.sources:
if source.codebase == codebase:
return source
return None
def getAllSourceStamps(self):
return list(self.sources)
def allChanges(self):
for s in self.sources:
for c in s.changes:
yield c
def allFiles(self):
# return a list of all source files that were changed
files = []
for c in self.allChanges():
for f in c.files:
files.append(f)
return files
def __repr__(self):
return "<Build %s>" % (self.builder.name,)
def blamelist(self):
blamelist = []
for c in self.allChanges():
if c.who not in blamelist:
blamelist.append(c.who)
for source in self.sources:
if source.patch_info: #Add patch author to blamelist
blamelist.append(source.patch_info[0])
blamelist.sort()
return blamelist
def changesText(self):
changetext = ""
for c in self.allChanges():
changetext += "-" * 60 + "\n\n" + c.asText() + "\n"
# consider sorting these by number
return changetext
def setStepFactories(self, step_factories):
"""Set a list of 'step factories', which are tuples of (class,
kwargs), where 'class' is generally a subclass of step.BuildStep .
These are used to create the Steps themselves when the Build starts
(as opposed to when it is first created). By creating the steps
later, their __init__ method will have access to things like
build.allFiles() ."""
self.stepFactories = list(step_factories)
useProgress = True
def getSlaveCommandVersion(self, command, oldversion=None):
return self.slavebuilder.getSlaveCommandVersion(command, oldversion)
def getSlaveName(self):
return self.slavebuilder.slave.slavename
def setupProperties(self):
props = interfaces.IProperties(self)
# give the properties a reference back to this build
props.build = self
# start with global properties from the configuration
master = self.builder.botmaster.master
props.updateFromProperties(master.config.properties)
# from the SourceStamps, which have properties via Change
for change in self.allChanges():
props.updateFromProperties(change.properties)
# and finally, get any properties from requests (this is the path
# through which schedulers will send us properties)
for rq in self.requests:
props.updateFromProperties(rq.properties)
# now set some properties of our own, corresponding to the
# build itself
props.setProperty("buildnumber", self.build_status.number, "Build")
if self.sources and len(self.sources) == 1:
# old interface for backwards compatibility
source = self.sources[0]
props.setProperty("branch", source.branch, "Build")
props.setProperty("revision", source.revision, "Build")
props.setProperty("repository", source.repository, "Build")
props.setProperty("codebase", source.codebase, "Build")
props.setProperty("project", source.project, "Build")
self.builder.setupProperties(props)
def setupSlaveBuilder(self, slavebuilder):
self.slavebuilder = slavebuilder
self.path_module = slavebuilder.slave.path_module
# navigate our way back to the L{buildbot.buildslave.BuildSlave}
# object that came from the config, and get its properties
buildslave_properties = slavebuilder.slave.properties
self.getProperties().updateFromProperties(buildslave_properties)
if slavebuilder.slave.slave_basedir:
builddir = self.path_module.join(
slavebuilder.slave.slave_basedir,
self.builder.config.slavebuilddir)
self.setProperty("builddir", builddir, "slave")
self.setProperty("workdir", builddir, "slave (deprecated)")
self.slavename = slavebuilder.slave.slavename
self.build_status.setSlavename(self.slavename)
def startBuild(self, build_status, expectations, slavebuilder):
"""This method sets up the build, then starts it by invoking the
first Step. It returns a Deferred which will fire when the build
finishes. This Deferred is guaranteed to never errback."""
# we are taking responsibility for watching the connection to the
# remote. This responsibility was held by the Builder until our
# startBuild was called, and will not return to them until we fire
# the Deferred returned by this method.
log.msg("%s.startBuild" % self)
self.build_status = build_status
# now that we have a build_status, we can set properties
self.setupProperties()
self.setupSlaveBuilder(slavebuilder)
slavebuilder.slave.updateSlaveStatus(buildStarted=build_status)
# then narrow SlaveLocks down to the right slave
self.locks = [(l.getLock(self.slavebuilder.slave), a)
for l, a in self.locks ]
self.remote = slavebuilder.remote
self.remote.notifyOnDisconnect(self.lostRemote)
metrics.MetricCountEvent.log('active_builds', 1)
d = self.deferred = defer.Deferred()
def _uncount_build(res):
metrics.MetricCountEvent.log('active_builds', -1)
return res
d.addBoth(_uncount_build)
def _release_slave(res, slave, bs):
self.slavebuilder.buildFinished()
slave.updateSlaveStatus(buildFinished=bs)
return res
d.addCallback(_release_slave, self.slavebuilder.slave, build_status)
try:
self.setupBuild(expectations) # create .steps
except:
# the build hasn't started yet, so log the exception as a point
# event instead of flunking the build.
# TODO: associate this failure with the build instead.
# this involves doing
# self.build_status.buildStarted() from within the exception
# handler
log.msg("Build.setupBuild failed")
log.err(Failure())
self.builder.builder_status.addPointEvent(["setupBuild",
"exception"])
self.finished = True
self.results = EXCEPTION
self.deferred = None
d.callback(self)
return d
self.build_status.buildStarted(self)
self.acquireLocks().addCallback(self._startBuild_2)
return d
@staticmethod
def canStartWithSlavebuilder(lockList, slavebuilder):
for lock, access in lockList:
slave_lock = lock.getLock(slavebuilder.slave)
if not slave_lock.isAvailable(None, access):
return False
return True
def acquireLocks(self, res=None):
self._acquiringLock = None
if not self.locks:
return defer.succeed(None)
if self.stopped:
return defer.succeed(None)
log.msg("acquireLocks(build %s, locks %s)" % (self, self.locks))
for lock, access in self.locks:
if not lock.isAvailable(self, access):
log.msg("Build %s waiting for lock %s" % (self, lock))
d = lock.waitUntilMaybeAvailable(self, access)
d.addCallback(self.acquireLocks)
self._acquiringLock = (lock, access, d)
return d
# all locks are available, claim them all
for lock, access in self.locks:
lock.claim(self, access)
return defer.succeed(None)
def _startBuild_2(self, res):
self.startNextStep()
def setupBuild(self, expectations):
# create the actual BuildSteps. If there are any name collisions, we
# add a count to the loser until it is unique.
self.steps = []
self.stepStatuses = {}
stepnames = {}
sps = []
for factory in self.stepFactories:
step = factory.buildStep()
step.setBuild(self)
step.setBuildSlave(self.slavebuilder.slave)
if callable (self.workdir):
step.setDefaultWorkdir (self.workdir (self.sources))
else:
step.setDefaultWorkdir (self.workdir)
name = step.name
if stepnames.has_key(name):
count = stepnames[name]
count += 1
stepnames[name] = count
name = step.name + "_%d" % count
else:
stepnames[name] = 0
step.name = name
self.steps.append(step)
# tell the BuildStatus about the step. This will create a
# BuildStepStatus and bind it to the Step.
step_status = self.build_status.addStepWithName(name)
step.setStepStatus(step_status)
sp = None
if self.useProgress:
# XXX: maybe bail if step.progressMetrics is empty? or skip
# progress for that one step (i.e. "it is fast"), or have a
# separate "variable" flag that makes us bail on progress
# tracking
sp = step.setupProgress()
if sp:
sps.append(sp)
# Create a buildbot.status.progress.BuildProgress object. This is
# called once at startup to figure out how to build the long-term
# Expectations object, and again at the start of each build to get a
# fresh BuildProgress object to track progress for that individual
# build. TODO: revisit at-startup call
if self.useProgress:
self.progress = BuildProgress(sps)
if self.progress and expectations:
self.progress.setExpectationsFrom(expectations)
# we are now ready to set up our BuildStatus.
# pass all sourcestamps to the buildstatus
self.build_status.setSourceStamps(self.sources)
self.build_status.setReason(self.reason)
self.build_status.setBlamelist(self.blamelist())
self.build_status.setProgress(self.progress)
# gather owners from build requests
owners = [r.properties['owner'] for r in self.requests
if r.properties.has_key('owner')]
if owners: self.setProperty('owners', owners, self.reason)
self.results = [] # list of FAILURE, SUCCESS, WARNINGS, SKIPPED
self.result = SUCCESS # overall result, may downgrade after each step
self.text = [] # list of text string lists (text2)
def getNextStep(self):
"""This method is called to obtain the next BuildStep for this build.
When it returns None (or raises a StopIteration exception), the build
is complete."""
if not self.steps:
return None
if not self.remote:
return None
if self.terminate or self.stopped:
# Run any remaining alwaysRun steps, and skip over the others
while True:
s = self.steps.pop(0)
if s.alwaysRun:
return s
if not self.steps:
return None
else:
return self.steps.pop(0)
def startNextStep(self):
try:
s = self.getNextStep()
except StopIteration:
s = None
if not s:
return self.allStepsDone()
self.currentStep = s
d = defer.maybeDeferred(s.startStep, self.remote)
d.addCallback(self._stepDone, s)
d.addErrback(self.buildException)
def _stepDone(self, results, step):
self.currentStep = None
if self.finished:
return # build was interrupted, don't keep building
terminate = self.stepDone(results, step) # interpret/merge results
if terminate:
self.terminate = True
return self.startNextStep()
def stepDone(self, result, step):
"""This method is called when the BuildStep completes. It is passed a
status object from the BuildStep and is responsible for merging the
Step's results into those of the overall Build."""
terminate = False
text = None
if type(result) == types.TupleType:
result, text = result
assert type(result) == type(SUCCESS)
log.msg(" step '%s' complete: %s" % (step.name, Results[result]))
self.results.append(result)
if text:
self.text.extend(text)
if not self.remote:
terminate = True
possible_overall_result = result
if result == FAILURE:
if not step.flunkOnFailure:
possible_overall_result = SUCCESS
if step.warnOnFailure:
possible_overall_result = WARNINGS
if step.flunkOnFailure:
possible_overall_result = FAILURE
if step.haltOnFailure:
terminate = True
elif result == WARNINGS:
if not step.warnOnWarnings:
possible_overall_result = SUCCESS
else:
possible_overall_result = WARNINGS
if step.flunkOnWarnings:
possible_overall_result = FAILURE
elif result in (EXCEPTION, RETRY):
terminate = True
# if we skipped this step, then don't adjust the build status
if result != SKIPPED:
self.result = worst_status(self.result, possible_overall_result)
return terminate
def lostRemote(self, remote=None):
# the slave went away. There are several possible reasons for this,
# and they aren't necessarily fatal. For now, kill the build, but
# TODO: see if we can resume the build when it reconnects.
log.msg("%s.lostRemote" % self)
self.remote = None
if self.currentStep:
# this should cause the step to finish.
log.msg(" stopping currentStep", self.currentStep)
self.currentStep.interrupt(Failure(error.ConnectionLost()))
else:
self.result = RETRY
self.text = ["lost", "remote"]
self.stopped = True
if self._acquiringLock:
lock, access, d = self._acquiringLock
lock.stopWaitingUntilAvailable(self, access, d)
d.callback(None)
def stopBuild(self, reason="<no reason given>"):
# the idea here is to let the user cancel a build because, e.g.,
# they realized they committed a bug and they don't want to waste
# the time building something that they know will fail. Another
# reason might be to abandon a stuck build. We want to mark the
# build as failed quickly rather than waiting for the slave's
# timeout to kill it on its own.
log.msg(" %s: stopping build: %s" % (self, reason))
if self.finished:
return
# TODO: include 'reason' in this point event
self.builder.builder_status.addPointEvent(['interrupt'])
self.stopped = True
if self.currentStep:
self.currentStep.interrupt(reason)
self.result = EXCEPTION
if self._acquiringLock:
lock, access, d = self._acquiringLock
lock.stopWaitingUntilAvailable(self, access, d)
d.callback(None)
def allStepsDone(self):
if self.result == FAILURE:
text = ["failed"]
elif self.result == WARNINGS:
text = ["warnings"]
elif self.result == EXCEPTION:
text = ["exception"]
elif self.result == RETRY:
text = ["retry"]
else:
text = ["build", "successful"]
text.extend(self.text)
return self.buildFinished(text, self.result)
def buildException(self, why):
log.msg("%s.buildException" % self)
log.err(why)
# try to finish the build, but since we've already faced an exception,
# this may not work well.
try:
self.buildFinished(["build", "exception"], EXCEPTION)
except:
log.err(Failure(), 'while finishing a build with an exception')
def buildFinished(self, text, results):
"""This method must be called when the last Step has completed. It
marks the Build as complete and returns the Builder to the 'idle'
state.
It takes two arguments which describe the overall build status:
text, results. 'results' is one of SUCCESS, WARNINGS, or FAILURE.
If 'results' is SUCCESS or WARNINGS, we will permit any dependant
builds to start. If it is 'FAILURE', those builds will be
abandoned."""
self.finished = True
if self.remote:
self.remote.dontNotifyOnDisconnect(self.lostRemote)
self.remote = None
self.results = results
log.msg(" %s: build finished" % self)
self.build_status.setText(text)
self.build_status.setResults(results)
self.build_status.buildFinished()
if self.progress and results == SUCCESS:
# XXX: also test a 'timing consistent' flag?
log.msg(" setting expectations for next time")
self.builder.setExpectations(self.progress)
eventually(self.releaseLocks)
self.deferred.callback(self)
self.deferred = None
def releaseLocks(self):
if self.locks:
log.msg("releaseLocks(%s): %s" % (self, self.locks))
for lock, access in self.locks:
if lock.isOwner(self, access):
lock.release(self, access)
else:
# This should only happen if we've been interrupted
assert self.stopped
# IBuildControl
def getStatus(self):
return self.build_status
# stopBuild is defined earlier
components.registerAdapter(
lambda build : interfaces.IProperties(build.build_status),
Build, interfaces.IProperties)
|