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gerrit.py
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/
gerrit.py
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# 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
"""
Push events to Gerrit
"""
from __future__ import absolute_import
from __future__ import print_function
from future.builtins import range
from future.utils import iteritems
import time
import warnings
from distutils.version import LooseVersion
from twisted.internet import defer
from twisted.internet import reactor
from twisted.internet.protocol import ProcessProtocol
from twisted.python import log
from buildbot.process.results import EXCEPTION
from buildbot.process.results import FAILURE
from buildbot.process.results import RETRY
from buildbot.process.results import SUCCESS
from buildbot.process.results import WARNINGS
from buildbot.process.results import Results
from buildbot.reporters import utils
from buildbot.util import service
# Cache the version that the gerrit server is running for this many seconds
GERRIT_VERSION_CACHE_TIMEOUT = 600
GERRIT_LABEL_VERIFIED = 'Verified'
GERRIT_LABEL_REVIEWED = 'Code-Review'
def makeReviewResult(message, *labels):
"""
helper to produce a review result
"""
return dict(message=message, labels=dict(labels))
def _handleLegacyResult(result):
"""
make sure the result is backward compatible
"""
if not isinstance(result, dict):
warnings.warn('The Gerrit status callback uses the old way to '
'communicate results. The outcome might be not what is '
'expected.')
message, verified, reviewed = result
result = makeReviewResult(message,
(GERRIT_LABEL_VERIFIED, verified),
(GERRIT_LABEL_REVIEWED, reviewed))
return result
def _old_add_label(label, value):
if label == GERRIT_LABEL_VERIFIED:
return ["--verified %d" % int(value)]
elif label == GERRIT_LABEL_REVIEWED:
return ["--code-review %d" % int(value)]
else:
warnings.warn('Gerrit older than 2.6 does not support custom labels. '
'Setting %s is ignored.' % label)
return []
def _new_add_label(label, value):
return ["--label %s=%d" % (label, int(value))]
def defaultReviewCB(builderName, build, result, master, arg):
if result == RETRY:
return makeReviewResult(None)
message = "Buildbot finished compiling your patchset\n"
message += "on configuration: %s\n" % builderName
message += "The result is: %s\n" % Results[result].upper()
return makeReviewResult(message,
(GERRIT_LABEL_VERIFIED, result == SUCCESS or -1))
def defaultSummaryCB(buildInfoList, results, master, arg):
success = False
failure = False
msgs = []
for buildInfo in buildInfoList:
msg = "Builder %(name)s %(resultText)s (%(text)s)" % buildInfo
link = buildInfo.get('url', None)
if link:
msg += " - " + link
else:
msg += "."
msgs.append(msg)
if buildInfo['result'] == SUCCESS: # pylint: disable=simplifiable-if-statement
success = True
else:
failure = True
if success and not failure:
verified = 1
else:
verified = -1
return makeReviewResult('\n\n'.join(msgs), (GERRIT_LABEL_VERIFIED, verified))
# These are just sentinel values for GerritStatusPush.__init__ args
class DEFAULT_REVIEW(object):
pass
class DEFAULT_SUMMARY(object):
pass
class GerritStatusPush(service.BuildbotService):
"""Event streamer to a gerrit ssh server."""
name = "GerritStatusPush"
gerrit_server = None
gerrit_username = None
gerrit_port = None
gerrit_version_time = None
gerrit_version = None
gerrit_identity_file = None
reviewCB = None
reviewArg = None
startCB = None
startArg = None
summaryCB = None
summaryArg = None
_gerrit_notify = None
def reconfigService(self, server, username, reviewCB=DEFAULT_REVIEW,
startCB=None, port=29418, reviewArg=None,
startArg=None, summaryCB=DEFAULT_SUMMARY, summaryArg=None,
identity_file=None, builders=None, notify=None):
# If neither reviewCB nor summaryCB were specified, default to sending
# out "summary" reviews. But if we were given a reviewCB and only a
# reviewCB, disable the "summary" reviews, so we don't send out both
# by default.
if reviewCB is DEFAULT_REVIEW and summaryCB is DEFAULT_SUMMARY:
reviewCB = None
summaryCB = defaultSummaryCB
if reviewCB is DEFAULT_REVIEW:
reviewCB = None
if summaryCB is DEFAULT_SUMMARY:
summaryCB = None
# Parameters.
self.gerrit_server = server
self.gerrit_username = username
self.gerrit_port = port
self.gerrit_version = None
self.gerrit_version_time = 0
self.gerrit_identity_file = identity_file
self.reviewCB = reviewCB
self.reviewArg = reviewArg
self.startCB = startCB
self.startArg = startArg
self.summaryCB = summaryCB
self.summaryArg = summaryArg
self.builders = builders
self._gerrit_notify = notify
def _gerritCmd(self, *args):
'''Construct a command as a list of strings suitable for
:func:`subprocess.call`.
'''
if self.gerrit_identity_file is not None:
options = ['-i', self.gerrit_identity_file]
else:
options = []
return ['ssh'] + options + [
'@'.join((self.gerrit_username, self.gerrit_server)),
'-p', str(self.gerrit_port),
'gerrit'
] + list(args)
class VersionPP(ProcessProtocol):
def __init__(self, func):
self.func = func
self.gerrit_version = None
def outReceived(self, data):
vstr = "gerrit version "
if not data.startswith(vstr):
log.msg("Error: Cannot interpret gerrit version info:", data)
return
vers = data[len(vstr):]
log.msg("gerrit version:", vers)
self.gerrit_version = LooseVersion(vers)
def errReceived(self, data):
log.msg("gerriterr:", data)
def processEnded(self, status_object):
if status_object.value.exitCode:
log.msg("gerrit version status: ERROR:", status_object)
return
if self.gerrit_version:
self.func(self.gerrit_version)
def getCachedVersion(self):
if self.gerrit_version is None:
return None
if time.time() - self.gerrit_version_time > GERRIT_VERSION_CACHE_TIMEOUT:
# cached version has expired
self.gerrit_version = None
return self.gerrit_version
def processVersion(self, gerrit_version, func):
self.gerrit_version = gerrit_version
self.gerrit_version_time = time.time()
func()
def callWithVersion(self, func):
command = self._gerritCmd("version")
callback = lambda gerrit_version: self.processVersion(
gerrit_version, func)
self.spawnProcess(self.VersionPP(callback), command[0], command, env=None)
class LocalPP(ProcessProtocol):
def __init__(self, status):
self.status = status
def outReceived(self, data):
log.msg("gerritout:", data)
def errReceived(self, data):
log.msg("gerriterr:", data)
def processEnded(self, status_object):
if status_object.value.exitCode:
log.msg("gerrit status: ERROR:", status_object)
else:
log.msg("gerrit status: OK")
@defer.inlineCallbacks
def startService(self):
yield service.BuildbotService.startService(self)
startConsuming = self.master.mq.startConsuming
self._buildsetCompleteConsumer = yield startConsuming(
self.buildsetComplete,
('buildsets', None, 'complete'))
self._buildCompleteConsumer = yield startConsuming(
self.buildComplete,
('builds', None, 'finished'))
self._buildStartedConsumer = yield startConsuming(
self.buildStarted,
('builds', None, 'new'))
def stopService(self):
self._buildsetCompleteConsumer.stopConsuming()
self._buildCompleteConsumer.stopConsuming()
self._buildStartedConsumer.stopConsuming()
@defer.inlineCallbacks
def buildStarted(self, key, build):
if self.startCB is None:
return
yield self.getBuildDetails(build)
if self.isBuildReported(build):
result = yield self.startCB(build['builder']['name'], build, self.startArg)
self.sendCodeReviews(build, result)
@defer.inlineCallbacks
def buildComplete(self, key, build):
if self.reviewCB is None:
return
yield self.getBuildDetails(build)
if self.isBuildReported(build):
result = yield self.reviewCB(build['builder']['name'], build, build['results'], self.master, self.reviewArg)
result = _handleLegacyResult(result)
self.sendCodeReviews(build, result)
@defer.inlineCallbacks
def getBuildDetails(self, build):
br = yield self.master.data.get(("buildrequests", build['buildrequestid']))
buildset = yield self.master.data.get(("buildsets", br['buildsetid']))
yield utils.getDetailsForBuilds(self.master, buildset, [build], wantProperties=True)
def isBuildReported(self, build):
return self.builders is None or build['builder']['name'] in self.builders
@defer.inlineCallbacks
def buildsetComplete(self, key, msg):
if not self.summaryCB:
return
bsid = msg['bsid']
res = yield utils.getDetailsForBuildset(
self.master, bsid, wantProperties=True)
builds = res['builds']
buildset = res['buildset']
self.sendBuildSetSummary(buildset, builds)
@defer.inlineCallbacks
def sendBuildSetSummary(self, buildset, builds):
builds = [build for build in builds if self.isBuildReported(build)]
if builds and self.summaryCB:
def getBuildInfo(build):
result = build['results']
resultText = {
SUCCESS: "succeeded",
FAILURE: "failed",
WARNINGS: "completed with warnings",
EXCEPTION: "encountered an exception",
}.get(result, "completed with unknown result %d" % result)
return {'name': build['builder']['name'],
'result': result,
'resultText': resultText,
'text': build['state_string'],
'url': utils.getURLForBuild(self.master, build['builder']['builderid'], build['number']),
'build': build
}
buildInfoList = sorted(
[getBuildInfo(build) for build in builds], key=lambda bi: bi['name'])
result = yield self.summaryCB(buildInfoList,
Results[buildset['results']],
self.master,
self.summaryArg)
result = _handleLegacyResult(result)
self.sendCodeReviews(builds[0], result)
def sendCodeReviews(self, build, result):
message = result.get('message', None)
if message is None:
return
def getProperty(build, name):
return build['properties'].get(name, [None])[0]
# Gerrit + Repo
downloads = getProperty(build, "repo_downloads")
downloaded = getProperty(build, "repo_downloaded")
if downloads is not None and downloaded is not None:
downloaded = downloaded.split(" ")
if downloads and 2 * len(downloads) == len(downloaded):
for i in range(0, len(downloads)):
try:
project, change1 = downloads[i].split(" ")
except ValueError:
return # something is wrong, abort
change2 = downloaded[2 * i]
revision = downloaded[2 * i + 1]
if change1 == change2:
self.sendCodeReview(project, revision, result)
else:
return # something is wrong, abort
return
# Gerrit + Git
# used only to verify Gerrit source
if getProperty(build, "event.change.id") is not None:
project = getProperty(build, "event.change.project")
codebase = getProperty(build, "codebase")
revision = getProperty(
build, "got_revision") or getProperty(build, "revision")
if isinstance(revision, dict):
# in case of the revision is a codebase revision, we just take
# the revisionfor current codebase
if codebase is not None:
revision = revision[codebase]
else:
revision = None
if project is not None and revision is not None:
self.sendCodeReview(project, revision, result)
return
def sendCodeReview(self, project, revision, result):
gerrit_version = self.getCachedVersion()
if gerrit_version is None:
self.callWithVersion(
lambda: self.sendCodeReview(project, revision, result))
return
command = self._gerritCmd("review", "--project %s" % (project,))
if self._gerrit_notify is not None:
command.append('--notify %s' % str(self._gerrit_notify))
message = result.get('message', None)
if message:
command.append("--message '%s'" % message.replace("'", "\""))
labels = result.get('labels', None)
if labels:
assert gerrit_version
if gerrit_version < LooseVersion("2.6"):
add_label = _old_add_label
else:
add_label = _new_add_label
for label, value in iteritems(labels):
command.extend(add_label(label, value))
command.append(revision)
command = [str(s) for s in command]
self.spawnProcess(self.LocalPP(self), command[0], command, env=None)
def spawnProcess(self, *arg, **kw):
reactor.spawnProcess(*arg, **kw)