James E. Blair
04ac8287b6
To try to approach a more intuitive behavior for jobs which apply to tags but are defined in-repo (or even for centrally defined jobs which should behave differently on tags from different branches), look up which branches contain the commit referenced by a tag and use that list in branch matchers. If a tag item is enqueued, we look up the branches which contain the commit referenced by the tag. If any of those branches match a branch matcher, the matcher is considered to have matched. This means that if a release job is defined on multiple branches, the branch variant from each branch the tagged commit is on will be used. A typical case is for a tagged commit to appear in exactly one branch. In that case, the most intuitive behavior (the version of the job defined on that branch) occurs. A less typical but perfectly reasonable case is that there are two identical branches (ie, stable has just branched from master but not diverged). In this case, if an identical commit is merged to both branches, then both variants of a release job will run. However, it's likely that these variants are identical anyway, so the result is apparently the same as the previous case. However if the variants are defined centrally, then they may differ while the branch contents are the same, causing unexpected behavior when both variants are applied. If two branches have diverged, it will not be possible for the same commit to be added to both branches, so in that case, only one of the variants will apply. However, tags can be created retroactively, so that even if a branch has diverged, if a commit in the history of both branches is tagged, then both variants will apply, possibly producing unexpected behavior. Considering that the current behavior is to apply all variants of jobs on tags all the time, the partial reduction of scope in the most typical circumstances is probably a useful change. Change-Id: I5734ed8aeab90c1754e27dc792d39690f16ac70c Co-Authored-By: Tobias Henkel <tobias.henkel@bmw.de>
1211 lines
52 KiB
Python
1211 lines
52 KiB
Python
# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import logging
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import textwrap
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import urllib
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from zuul import exceptions
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from zuul import model
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from zuul.lib.dependson import find_dependency_headers
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from zuul.lib.logutil import get_annotated_logger
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class DynamicChangeQueueContextManager(object):
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def __init__(self, change_queue):
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self.change_queue = change_queue
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def __enter__(self):
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return self.change_queue
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def __exit__(self, etype, value, tb):
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if self.change_queue and not self.change_queue.queue:
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self.change_queue.pipeline.removeQueue(self.change_queue)
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class StaticChangeQueueContextManager(object):
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def __init__(self, change_queue):
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self.change_queue = change_queue
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def __enter__(self):
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return self.change_queue
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def __exit__(self, etype, value, tb):
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pass
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class PipelineManager(object):
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"""Abstract Base Class for enqueing and processing Changes in a Pipeline"""
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def __init__(self, sched, pipeline):
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self.log = logging.getLogger("zuul.Pipeline.%s.%s" %
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(pipeline.tenant.name,
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pipeline.name,))
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self.sched = sched
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self.pipeline = pipeline
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self.event_filters = []
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self.ref_filters = []
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def __str__(self):
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return "<%s %s>" % (self.__class__.__name__, self.pipeline.name)
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def _postConfig(self, layout):
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# All pipelines support shared queues for setting
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# relative_priority; only the dependent pipeline uses them for
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# pipeline queing.
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self.buildChangeQueues(layout)
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def buildChangeQueues(self, layout):
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self.log.debug("Building relative_priority queues")
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change_queues = self.pipeline.relative_priority_queues
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tenant = self.pipeline.tenant
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layout_project_configs = layout.project_configs
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for project_name, project_configs in layout_project_configs.items():
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(trusted, project) = tenant.getProject(project_name)
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queue_name = None
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project_in_pipeline = False
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for project_config in layout.getAllProjectConfigs(project_name):
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project_pipeline_config = project_config.pipelines.get(
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self.pipeline.name)
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if project_pipeline_config is None:
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continue
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project_in_pipeline = True
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queue_name = project_pipeline_config.queue_name
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if queue_name:
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break
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if not project_in_pipeline:
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continue
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if not queue_name:
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continue
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if queue_name in change_queues:
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change_queue = change_queues[queue_name]
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else:
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change_queue = []
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change_queues[queue_name] = change_queue
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self.log.debug("Created queue: %s" % queue_name)
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change_queue.append(project)
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self.log.debug("Added project %s to queue: %s" %
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(project, queue_name))
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def getSubmitAllowNeeds(self):
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# Get a list of code review labels that are allowed to be
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# "needed" in the submit records for a change, with respect
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# to this queue. In other words, the list of review labels
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# this queue itself is likely to set before submitting.
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allow_needs = set()
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for action_reporter in self.pipeline.success_actions:
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allow_needs.update(action_reporter.getSubmitAllowNeeds())
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return allow_needs
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def eventMatches(self, event, change):
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log = get_annotated_logger(self.log, event)
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if event.forced_pipeline:
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if event.forced_pipeline == self.pipeline.name:
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log.debug("Event %s for change %s was directly assigned "
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"to pipeline %s" % (event, change, self))
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return True
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else:
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return False
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for ef in self.event_filters:
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match_result = ef.matches(event, change)
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if match_result:
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log.debug("Event %s for change %s matched %s "
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"in pipeline %s" % (event, change, ef, self))
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return True
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else:
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log.debug("Event %s for change %s does not match %s "
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"in pipeline %s because %s" % (
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event, change, ef, self, str(match_result)))
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return False
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def getNodePriority(self, item):
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queue = self.pipeline.getRelativePriorityQueue(item.change.project)
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items = self.pipeline.getAllItems()
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items = [i for i in items
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if i.change.project in queue and
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i.live]
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return items.index(item)
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def isChangeAlreadyInPipeline(self, change):
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# Checks live items in the pipeline
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for item in self.pipeline.getAllItems():
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if item.live and change.equals(item.change):
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return True
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return False
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def isChangeAlreadyInQueue(self, change, change_queue):
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# Checks any item in the specified change queue
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for item in change_queue.queue:
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if change.equals(item.change):
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return True
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return False
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def reportEnqueue(self, item):
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if not self.pipeline._disabled:
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self.log.info("Reporting enqueue, action %s item %s" %
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(self.pipeline.enqueue_actions, item))
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ret = self.sendReport(self.pipeline.enqueue_actions, item)
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if ret:
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self.log.error("Reporting item enqueued %s received: %s" %
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(item, ret))
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def reportStart(self, item):
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if not self.pipeline._disabled:
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self.log.info("Reporting start, action %s item %s" %
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(self.pipeline.start_actions, item))
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ret = self.sendReport(self.pipeline.start_actions, item)
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if ret:
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self.log.error("Reporting item start %s received: %s" %
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(item, ret))
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def sendReport(self, action_reporters, item, message=None):
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"""Sends the built message off to configured reporters.
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Takes the action_reporters, item, message and extra options and
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sends them to the pluggable reporters.
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"""
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log = get_annotated_logger(self.log, item.event)
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report_errors = []
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if len(action_reporters) > 0:
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for reporter in action_reporters:
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try:
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ret = reporter.report(item)
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if ret:
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report_errors.append(ret)
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except Exception as e:
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item.setReportedResult('ERROR')
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log.exception("Exception while reporting")
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report_errors.append(str(e))
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return report_errors
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def isChangeReadyToBeEnqueued(self, change, event):
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return True
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def enqueueChangesAhead(self, change, event, quiet, ignore_requirements,
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change_queue, history=None):
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return True
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def enqueueChangesBehind(self, change, event, quiet, ignore_requirements,
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change_queue):
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return True
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def checkForChangesNeededBy(self, change, change_queue, event):
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return True
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def getFailingDependentItems(self, item):
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return None
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def getItemForChange(self, change):
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for item in self.pipeline.getAllItems():
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if item.change.equals(change):
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return item
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return None
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def findOldVersionOfChangeAlreadyInQueue(self, change):
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for item in self.pipeline.getAllItems():
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if not item.live:
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continue
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if change.isUpdateOf(item.change):
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return item
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return None
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def removeOldVersionsOfChange(self, change, event):
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if not self.pipeline.dequeue_on_new_patchset:
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return
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old_item = self.findOldVersionOfChangeAlreadyInQueue(change)
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if old_item:
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log = get_annotated_logger(self.log, event)
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log.debug("Change %s is a new version of %s, removing %s",
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change, old_item.change, old_item)
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self.removeItem(old_item)
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def removeAbandonedChange(self, change, event):
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log = get_annotated_logger(self.log, event)
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log.debug("Change %s abandoned, removing." % change)
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for item in self.pipeline.getAllItems():
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if not item.live:
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continue
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if item.change.equals(change):
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self.removeItem(item)
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def reEnqueueItem(self, item, last_head, old_item_ahead, item_ahead_valid):
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log = get_annotated_logger(self.log, item.event)
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with self.getChangeQueue(item.change, item.event,
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last_head.queue) as change_queue:
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if change_queue:
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log.debug("Re-enqueing change %s in queue %s",
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item.change, change_queue)
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change_queue.enqueueItem(item)
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# If the old item ahead was re-enqued, this value will
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# be true, so we should attempt to move the item back
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# to where it was in case an item ahead is already
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# failing.
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if item_ahead_valid:
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change_queue.moveItem(item, old_item_ahead)
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# Get an updated copy of the layout and update the job
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# graph if necessary. This resumes the buildset merge
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# state machine. If we have an up-to-date layout, it
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# will go ahead and refresh the job graph if needed;
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# or it will send a new merge job if necessary, or it
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# will do nothing if we're waiting on a merge job.
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has_job_graph = bool(item.job_graph)
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item.job_graph = None
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item.layout = None
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# If the item is no longer active, but has a job graph we
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# will make sure to update it.
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if item.active or has_job_graph:
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self.prepareItem(item)
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# Re-set build results in case any new jobs have been
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# added to the tree.
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for build in item.current_build_set.getBuilds():
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if build.result:
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item.setResult(build)
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# Similarly, reset the item state.
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if item.current_build_set.unable_to_merge:
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item.setUnableToMerge()
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if item.current_build_set.config_errors:
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item.setConfigErrors(item.current_build_set.config_errors)
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if item.dequeued_needing_change:
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item.setDequeuedNeedingChange()
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self.reportStats(item)
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return True
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else:
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log.error("Unable to find change queue for project %s",
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item.change.project)
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return False
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def addChange(self, change, event, quiet=False, enqueue_time=None,
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ignore_requirements=False, live=True,
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change_queue=None, history=None):
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log = get_annotated_logger(self.log, event)
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log.debug("Considering adding change %s" % change)
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# If we are adding a live change, check if it's a live item
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# anywhere in the pipeline. Otherwise, we will perform the
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# duplicate check below on the specific change_queue.
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if live and self.isChangeAlreadyInPipeline(change):
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log.debug("Change %s is already in pipeline, ignoring" % change)
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return True
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if not ignore_requirements:
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for f in self.ref_filters:
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if f.connection_name != change.project.connection_name:
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log.debug("Filter %s skipped for change %s due "
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"to mismatched connections" % (f, change))
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continue
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match_result = f.matches(change)
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if not match_result:
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log.debug("Change %s does not match pipeline "
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"requirement %s because %s" % (
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change, f, str(match_result)))
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return False
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if not self.isChangeReadyToBeEnqueued(change, event):
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log.debug("Change %s is not ready to be enqueued, ignoring" %
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change)
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return False
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with self.getChangeQueue(change, event, change_queue) as change_queue:
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if not change_queue:
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log.debug("Unable to find change queue for "
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"change %s in project %s" %
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(change, change.project))
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return False
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if history and change in history:
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log.debug("Dependency cycle detected for "
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"change %s in project %s" % (
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change, change.project))
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item = model.QueueItem(self, change, event)
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item.warning("Dependency cycle detected")
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actions = self.pipeline.failure_actions
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item.setReportedResult('FAILURE')
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self.sendReport(actions, item)
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return False
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if not self.enqueueChangesAhead(change, event, quiet,
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ignore_requirements,
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change_queue, history=history):
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log.debug("Failed to enqueue changes ahead of %s" % change)
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return False
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if self.isChangeAlreadyInQueue(change, change_queue):
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log.debug("Change %s is already in queue, ignoring" % change)
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return True
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log.info("Adding change %s to queue %s in %s" %
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(change, change_queue, self.pipeline))
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item = change_queue.enqueueChange(change, event)
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if enqueue_time:
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item.enqueue_time = enqueue_time
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item.live = live
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self.reportStats(item)
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item.quiet = quiet
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if item.live and not item.reported_enqueue:
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self.reportEnqueue(item)
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item.reported_enqueue = True
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self.enqueueChangesBehind(change, event, quiet,
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ignore_requirements, change_queue)
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zuul_driver = self.sched.connections.drivers['zuul']
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tenant = self.pipeline.tenant
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zuul_driver.onChangeEnqueued(
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tenant, item.change, self.pipeline, event)
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self.dequeueSupercededItems(item)
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return True
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def dequeueItem(self, item):
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log = get_annotated_logger(self.log, item.event)
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log.debug("Removing change %s from queue", item.change)
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item.queue.dequeueItem(item)
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def removeItem(self, item):
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log = get_annotated_logger(self.log, item.event)
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# Remove an item from the queue, probably because it has been
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# superseded by another change.
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log.debug("Canceling builds behind change: %s "
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"because it is being removed.", item.change)
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self.cancelJobs(item)
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self.dequeueItem(item)
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self.reportStats(item)
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def dequeueSupercededItems(self, item):
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for other_name in self.pipeline.supercedes:
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other_pipeline = self.pipeline.tenant.layout.pipelines.get(
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other_name)
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if not other_pipeline:
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continue
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found = None
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for other_item in other_pipeline.getAllItems():
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if other_item.live and other_item.change.equals(item.change):
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found = other_item
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break
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if found:
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self.log.info("Item %s is superceded by %s, removing" %
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(found, item))
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other_pipeline.manager.removeItem(found)
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def updateCommitDependencies(self, change, change_queue, event):
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log = get_annotated_logger(self.log, event)
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# Search for Depends-On headers and find appropriate changes
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log.debug(" Updating commit dependencies for %s", change)
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change.refresh_deps = False
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dependencies = []
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seen = set()
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for match in find_dependency_headers(change.message):
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log.debug(" Found Depends-On header: %s", match)
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if match in seen:
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continue
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seen.add(match)
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try:
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url = urllib.parse.urlparse(match)
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except ValueError:
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continue
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source = self.sched.connections.getSourceByHostname(
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url.hostname)
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if not source:
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continue
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log.debug(" Found source: %s", source)
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dep = source.getChangeByURL(match)
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if dep and (not dep.is_merged) and dep not in dependencies:
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log.debug(" Adding dependency: %s", dep)
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dependencies.append(dep)
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change.commit_needs_changes = dependencies
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def provisionNodes(self, item):
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log = item.annotateLogger(self.log)
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jobs = item.findJobsToRequest(item.pipeline.tenant.semaphore_handler)
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if not jobs:
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return False
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build_set = item.current_build_set
|
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log.debug("Requesting nodes for change %s", item.change)
|
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if self.sched.use_relative_priority:
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priority = item.getNodePriority()
|
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else:
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priority = 0
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for job in jobs:
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req = self.sched.nodepool.requestNodes(
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build_set, job, priority, event=item.event)
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log.debug("Adding node request %s for job %s to item %s",
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req, job, item)
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build_set.setJobNodeRequest(job.name, req)
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return True
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|
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def _executeJobs(self, item, jobs):
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log = get_annotated_logger(self.log, item.event)
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log.debug("Executing jobs for change %s", item.change)
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build_set = item.current_build_set
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for job in jobs:
|
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log.debug("Found job %s for change %s", job, item.change)
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try:
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nodeset = item.current_build_set.getJobNodeSet(job.name)
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self.sched.nodepool.useNodeSet(
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nodeset, build_set=item.current_build_set,
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event=item.event)
|
|
self.sched.executor.execute(
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job, item, self.pipeline,
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build_set.dependent_changes,
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build_set.merger_items)
|
|
except Exception:
|
|
log.exception("Exception while executing job %s "
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"for change %s:", job, item.change)
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try:
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# If we hit an exception we don't have a build in the
|
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# current item so a potentially aquired semaphore must be
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# released as it won't be released on dequeue of the item.
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tenant = item.pipeline.tenant
|
|
tenant.semaphore_handler.release(item, job)
|
|
except Exception:
|
|
log.exception("Exception while releasing semaphore")
|
|
|
|
def executeJobs(self, item):
|
|
# TODO(jeblair): This should return a value indicating a job
|
|
# was executed. Appears to be a longstanding bug.
|
|
if not item.layout:
|
|
return False
|
|
|
|
jobs = item.findJobsToRun(
|
|
item.pipeline.tenant.semaphore_handler)
|
|
if jobs:
|
|
self._executeJobs(item, jobs)
|
|
|
|
def cancelJobs(self, item, prime=True):
|
|
log = get_annotated_logger(self.log, item.event)
|
|
log.debug("Cancel jobs for change %s", item.change)
|
|
canceled = False
|
|
old_build_set = item.current_build_set
|
|
jobs_to_cancel = item.getJobs()
|
|
|
|
if prime and item.current_build_set.ref:
|
|
item.resetAllBuilds()
|
|
|
|
for job in jobs_to_cancel:
|
|
self.sched.cancelJob(old_build_set, job)
|
|
|
|
for item_behind in item.items_behind:
|
|
log.debug("Canceling jobs for change %s, behind change %s",
|
|
item_behind.change, item.change)
|
|
if self.cancelJobs(item_behind, prime=prime):
|
|
canceled = True
|
|
return canceled
|
|
|
|
def _findRelevantErrors(self, item, layout):
|
|
if item.item_ahead:
|
|
parent_layout = item.item_ahead.layout
|
|
else:
|
|
parent_layout = item.pipeline.tenant.layout
|
|
|
|
relevant_errors = []
|
|
for err in layout.loading_errors.errors:
|
|
econtext = err.key.context
|
|
if ((err.key not in
|
|
parent_layout.loading_errors.error_keys) or
|
|
(econtext.project == item.change.project.name and
|
|
econtext.branch == item.change.branch)):
|
|
relevant_errors.append(err)
|
|
return relevant_errors
|
|
|
|
def _loadDynamicLayout(self, item):
|
|
# Load layout
|
|
# Late import to break an import loop
|
|
import zuul.configloader
|
|
loader = zuul.configloader.ConfigLoader(
|
|
self.sched.connections, self.sched, None, None)
|
|
|
|
self.log.debug("Loading dynamic layout")
|
|
|
|
(trusted_updates, untrusted_updates) = item.includesConfigUpdates()
|
|
build_set = item.current_build_set
|
|
trusted_layout = None
|
|
trusted_errors = False
|
|
untrusted_layout = None
|
|
untrusted_errors = False
|
|
try:
|
|
# First parse the config as it will land with the
|
|
# full set of config and project repos. This lets us
|
|
# catch syntax errors in config repos even though we won't
|
|
# actually run with that config.
|
|
if trusted_updates:
|
|
self.log.debug("Loading dynamic layout (phase 1)")
|
|
trusted_layout = loader.createDynamicLayout(
|
|
item.pipeline.tenant,
|
|
build_set.files,
|
|
self.sched.ansible_manager,
|
|
include_config_projects=True)
|
|
trusted_errors = len(trusted_layout.loading_errors) > 0
|
|
|
|
# Then create the config a second time but without changes
|
|
# to config repos so that we actually use this config.
|
|
if untrusted_updates:
|
|
self.log.debug("Loading dynamic layout (phase 2)")
|
|
untrusted_layout = loader.createDynamicLayout(
|
|
item.pipeline.tenant,
|
|
build_set.files,
|
|
self.sched.ansible_manager,
|
|
include_config_projects=False)
|
|
untrusted_errors = len(untrusted_layout.loading_errors) > 0
|
|
|
|
# Configuration state handling switchboard. Intentionally verbose
|
|
# and repetetive to be exceptionally clear that we handle all
|
|
# possible cases correctly. Note we never return trusted_layout
|
|
# from a dynamic update.
|
|
|
|
# No errors found at all use dynamic untrusted layout
|
|
if (trusted_layout and not trusted_errors and
|
|
untrusted_layout and not untrusted_errors):
|
|
self.log.debug("Loading dynamic layout complete")
|
|
return untrusted_layout
|
|
# No errors in untrusted only layout update
|
|
elif (not trusted_layout and
|
|
untrusted_layout and not untrusted_errors):
|
|
self.log.debug("Loading dynamic layout complete")
|
|
return untrusted_layout
|
|
# No errors in trusted only layout update
|
|
elif (not untrusted_layout and
|
|
trusted_layout and not trusted_errors):
|
|
# We're a change to a config repo (with no untrusted
|
|
# config items ahead), so just use the current pipeline
|
|
# layout.
|
|
self.log.debug("Loading dynamic layout complete")
|
|
return item.queue.pipeline.tenant.layout
|
|
# Untrusted layout only works with trusted updates
|
|
elif (trusted_layout and not trusted_errors and
|
|
untrusted_layout and untrusted_errors):
|
|
self.log.info("Configuration syntax error in dynamic layout")
|
|
# The config is good if we include config-projects,
|
|
# but is currently invalid if we omit them. Instead
|
|
# of returning the whole error message, just leave a
|
|
# note that the config will work once the dependent
|
|
# changes land.
|
|
msg = "This change depends on a change "\
|
|
"to a config project.\n\n"
|
|
msg += textwrap.fill(textwrap.dedent("""\
|
|
The syntax of the configuration in this change has
|
|
been verified to be correct once the config project
|
|
change upon which it depends is merged, but it can not
|
|
be used until that occurs."""))
|
|
item.setConfigError(msg)
|
|
return None
|
|
# Untrusted layout is broken and trusted is broken or not set
|
|
elif untrusted_layout and untrusted_errors:
|
|
# Find a layout loading error that match
|
|
# the current item.change and only report
|
|
# if one is found.
|
|
relevant_errors = self._findRelevantErrors(item,
|
|
untrusted_layout)
|
|
if relevant_errors:
|
|
item.setConfigErrors(relevant_errors)
|
|
return None
|
|
self.log.info(
|
|
"Configuration syntax error not related to "
|
|
"change context. Error won't be reported.")
|
|
return untrusted_layout
|
|
# Trusted layout is broken
|
|
elif trusted_layout and trusted_errors:
|
|
# Find a layout loading error that match
|
|
# the current item.change and only report
|
|
# if one is found.
|
|
relevant_errors = self._findRelevantErrors(item,
|
|
trusted_layout)
|
|
if relevant_errors:
|
|
item.setConfigErrors(relevant_errors)
|
|
return None
|
|
self.log.info(
|
|
"Configuration syntax error not related to "
|
|
"change context. Error won't be reported.")
|
|
# We're a change to a config repo with errors not relevant
|
|
# to this repo. We use the pipeline layout.
|
|
return item.queue.pipeline.tenant.layout
|
|
else:
|
|
raise Exception("We have reached a configuration error that is"
|
|
"not accounted for.")
|
|
|
|
except Exception:
|
|
self.log.exception("Error in dynamic layout")
|
|
item.setConfigError("Unknown configuration error")
|
|
return None
|
|
|
|
def _queueUpdatesConfig(self, item):
|
|
while item:
|
|
if item.change.updatesConfig(item.pipeline.tenant):
|
|
return True
|
|
item = item.item_ahead
|
|
return False
|
|
|
|
def getLayout(self, item):
|
|
if item.item_ahead:
|
|
fallback_layout = item.item_ahead.layout
|
|
else:
|
|
fallback_layout = item.pipeline.tenant.layout
|
|
if not item.change.updatesConfig(item.pipeline.tenant):
|
|
# Current change does not update layout, use its parent.
|
|
return fallback_layout
|
|
# Else this item updates the config,
|
|
# ask the merger for the result.
|
|
build_set = item.current_build_set
|
|
if build_set.merge_state != build_set.COMPLETE:
|
|
return None
|
|
if build_set.unable_to_merge:
|
|
return fallback_layout
|
|
self.log.debug("Preparing dynamic layout for: %s" % item.change)
|
|
return self._loadDynamicLayout(item)
|
|
|
|
def scheduleMerge(self, item, files=None, dirs=None):
|
|
log = item.annotateLogger(self.log)
|
|
log.debug("Scheduling merge for item %s (files: %s, dirs: %s)" %
|
|
(item, files, dirs))
|
|
build_set = item.current_build_set
|
|
build_set.merge_state = build_set.PENDING
|
|
|
|
# If the involved projects exclude unprotected branches we should also
|
|
# exclude them from the merge and repo state except the branch of the
|
|
# change that is tested.
|
|
tenant = item.pipeline.tenant
|
|
items = list(item.items_ahead) + [item]
|
|
projects = [
|
|
item.change.project for item in items
|
|
if tenant.getProject(item.change.project.canonical_name)[1]
|
|
]
|
|
if all(tenant.getExcludeUnprotectedBranches(project)
|
|
for project in projects):
|
|
branches = set()
|
|
|
|
# Add all protected branches of all involved projects
|
|
for project in projects:
|
|
branches.update(tenant.getProjectBranches(project))
|
|
|
|
# Additionally add all target branches of all involved items.
|
|
branches.update(item.change.branch for item in items
|
|
if hasattr(item.change, 'branch'))
|
|
branches = list(branches)
|
|
else:
|
|
branches = None
|
|
|
|
if isinstance(item.change, model.Change):
|
|
self.sched.merger.mergeChanges(build_set.merger_items,
|
|
item.current_build_set, files, dirs,
|
|
precedence=self.pipeline.precedence,
|
|
event=item.event,
|
|
branches=branches)
|
|
else:
|
|
self.sched.merger.getRepoState(build_set.merger_items,
|
|
item.current_build_set,
|
|
precedence=self.pipeline.precedence,
|
|
event=item.event,
|
|
branches=branches)
|
|
return False
|
|
|
|
def scheduleFilesChanges(self, item):
|
|
log = item.annotateLogger(self.log)
|
|
log.debug("Scheduling fileschanged for item %s", item)
|
|
build_set = item.current_build_set
|
|
build_set.files_state = build_set.PENDING
|
|
|
|
self.sched.merger.getFilesChanges(
|
|
item.change.project.connection_name, item.change.project.name,
|
|
item.change.ref, item.change.branch, build_set=build_set,
|
|
event=item.event)
|
|
return False
|
|
|
|
def prepareItem(self, item):
|
|
build_set = item.current_build_set
|
|
tenant = item.pipeline.tenant
|
|
# We always need to set the configuration of the item if it
|
|
# isn't already set.
|
|
tpc = tenant.project_configs.get(item.change.project.canonical_name)
|
|
if not build_set.ref:
|
|
build_set.setConfiguration()
|
|
|
|
# Next, if a change ahead has a broken config, then so does
|
|
# this one. Record that and don't do anything else.
|
|
if (item.item_ahead and item.item_ahead.current_build_set and
|
|
item.item_ahead.current_build_set.config_errors):
|
|
msg = "This change depends on a change "\
|
|
"with an invalid configuration.\n"
|
|
item.setConfigError(msg)
|
|
return False
|
|
|
|
# The next section starts between 0 and 2 remote merger
|
|
# operations in parallel as needed.
|
|
ready = True
|
|
# If the project is in this tenant, fetch missing files so we
|
|
# know if it updates the config.
|
|
if tpc:
|
|
if build_set.files_state == build_set.NEW:
|
|
ready = self.scheduleFilesChanges(item)
|
|
if build_set.files_state == build_set.PENDING:
|
|
ready = False
|
|
# If this change alters config or is live, schedule merge and
|
|
# build a layout.
|
|
if build_set.merge_state == build_set.NEW:
|
|
if item.live or item.change.updatesConfig(tenant):
|
|
ready = self.scheduleMerge(
|
|
item,
|
|
files=(['zuul.yaml', '.zuul.yaml'] +
|
|
list(tpc.extra_config_files)),
|
|
dirs=(['zuul.d', '.zuul.d'] +
|
|
list(tpc.extra_config_dirs)))
|
|
if build_set.merge_state == build_set.PENDING:
|
|
ready = False
|
|
|
|
# If a merger op is outstanding, we're not ready.
|
|
if not ready:
|
|
return False
|
|
|
|
# With the merges done, we have the info needed to get a
|
|
# layout. This may return the pipeline layout, a layout from
|
|
# a change ahead, a newly generated layout for this change, or
|
|
# None if there was an error that makes the layout unusable.
|
|
# In the last case, it will have set the config_errors on this
|
|
# item, which may be picked up by the next itme.
|
|
if not item.layout:
|
|
item.layout = self.getLayout(item)
|
|
if not item.layout:
|
|
return False
|
|
|
|
# If the change can not be merged or has config errors, don't
|
|
# run jobs.
|
|
if build_set.unable_to_merge:
|
|
return False
|
|
if build_set.config_errors:
|
|
return False
|
|
|
|
# We don't need to build a job graph for a non-live item, we
|
|
# just need the layout.
|
|
if not item.live:
|
|
return False
|
|
|
|
# At this point we have a layout for the item, and it's live,
|
|
# so freeze the job graph.
|
|
log = item.annotateLogger(self.log)
|
|
if not item.job_graph:
|
|
try:
|
|
log.debug("Freezing job graph for %s" % (item,))
|
|
item.freezeJobGraph()
|
|
except Exception as e:
|
|
# TODOv3(jeblair): nicify this exception as it will be reported
|
|
log.exception("Error freezing job graph for %s" % (item,))
|
|
item.setConfigError("Unable to freeze job graph: %s" %
|
|
(str(e)))
|
|
return False
|
|
return True
|
|
|
|
def _processOneItem(self, item, nnfi):
|
|
log = item.annotateLogger(self.log)
|
|
changed = False
|
|
ready = False
|
|
dequeued = False
|
|
failing_reasons = [] # Reasons this item is failing
|
|
|
|
item_ahead = item.item_ahead
|
|
if item_ahead and (not item_ahead.live):
|
|
item_ahead = None
|
|
change_queue = item.queue
|
|
|
|
if self.checkForChangesNeededBy(item.change, change_queue,
|
|
item.event) is not True:
|
|
# It's not okay to enqueue this change, we should remove it.
|
|
log.info("Dequeuing change %s because "
|
|
"it can no longer merge" % item.change)
|
|
self.cancelJobs(item)
|
|
self.dequeueItem(item)
|
|
item.setDequeuedNeedingChange()
|
|
if item.live:
|
|
try:
|
|
self.reportItem(item)
|
|
except exceptions.MergeFailure:
|
|
pass
|
|
return (True, nnfi)
|
|
|
|
actionable = change_queue.isActionable(item)
|
|
item.active = actionable
|
|
|
|
dep_items = self.getFailingDependentItems(item)
|
|
if dep_items:
|
|
failing_reasons.append('a needed change is failing')
|
|
self.cancelJobs(item, prime=False)
|
|
else:
|
|
item_ahead_merged = False
|
|
if (item_ahead and
|
|
hasattr(item_ahead.change, 'is_merged') and
|
|
item_ahead.change.is_merged):
|
|
item_ahead_merged = True
|
|
if (item_ahead != nnfi and not item_ahead_merged):
|
|
# Our current base is different than what we expected,
|
|
# and it's not because our current base merged. Something
|
|
# ahead must have failed.
|
|
log.info("Resetting builds for change %s because the "
|
|
"item ahead, %s, is not the nearest non-failing "
|
|
"item, %s" % (item.change, item_ahead, nnfi))
|
|
change_queue.moveItem(item, nnfi)
|
|
changed = True
|
|
self.cancelJobs(item)
|
|
if actionable:
|
|
ready = self.prepareItem(item)
|
|
# Starting jobs reporting should only be done once if there are
|
|
# jobs to run for this item.
|
|
if ready and len(self.pipeline.start_actions) > 0 \
|
|
and len(item.job_graph.jobs) > 0 \
|
|
and not item.reported_start \
|
|
and not item.quiet:
|
|
self.reportStart(item)
|
|
item.reported_start = True
|
|
if item.current_build_set.unable_to_merge:
|
|
failing_reasons.append("it has a merge conflict")
|
|
if item.current_build_set.config_errors:
|
|
failing_reasons.append("it has an invalid configuration")
|
|
if ready and self.provisionNodes(item):
|
|
changed = True
|
|
if ready and self.executeJobs(item):
|
|
changed = True
|
|
|
|
if item.hasAnyJobFailed():
|
|
failing_reasons.append("at least one job failed")
|
|
if (not item.live) and (not item.items_behind) and (not dequeued):
|
|
failing_reasons.append("is a non-live item with no items behind")
|
|
self.dequeueItem(item)
|
|
changed = dequeued = True
|
|
if ((not item_ahead) and item.areAllJobsComplete() and item.live):
|
|
try:
|
|
self.reportItem(item)
|
|
except exceptions.MergeFailure:
|
|
failing_reasons.append("it did not merge")
|
|
for item_behind in item.items_behind:
|
|
log.info("Resetting builds for change %s because the "
|
|
"item ahead, %s, failed to merge" %
|
|
(item_behind.change, item))
|
|
self.cancelJobs(item_behind)
|
|
self.dequeueItem(item)
|
|
changed = dequeued = True
|
|
elif not failing_reasons and item.live:
|
|
nnfi = item
|
|
item.current_build_set.failing_reasons = failing_reasons
|
|
if failing_reasons:
|
|
log.debug("%s is a failing item because %s" %
|
|
(item, failing_reasons))
|
|
if item.live and not dequeued and self.sched.use_relative_priority:
|
|
priority = item.getNodePriority()
|
|
for node_request in item.current_build_set.node_requests.values():
|
|
if node_request.relative_priority != priority:
|
|
self.sched.nodepool.reviseRequest(
|
|
node_request, priority)
|
|
return (changed, nnfi)
|
|
|
|
def processQueue(self):
|
|
# Do whatever needs to be done for each change in the queue
|
|
self.log.debug("Starting queue processor: %s" % self.pipeline.name)
|
|
changed = False
|
|
for queue in self.pipeline.queues:
|
|
queue_changed = False
|
|
nnfi = None # Nearest non-failing item
|
|
for item in queue.queue[:]:
|
|
item_changed, nnfi = self._processOneItem(
|
|
item, nnfi)
|
|
if item_changed:
|
|
queue_changed = True
|
|
self.reportStats(item)
|
|
if queue_changed:
|
|
changed = True
|
|
status = ''
|
|
for item in queue.queue:
|
|
status += item.formatStatus()
|
|
if status:
|
|
self.log.debug("Queue %s status is now:\n %s" %
|
|
(queue.name, status))
|
|
self.log.debug("Finished queue processor: %s (changed: %s)" %
|
|
(self.pipeline.name, changed))
|
|
return changed
|
|
|
|
def onBuildStarted(self, build):
|
|
log = get_annotated_logger(self.log, build.zuul_event_id)
|
|
log.debug("Build %s started", build)
|
|
return True
|
|
|
|
def onBuildPaused(self, build):
|
|
log = get_annotated_logger(self.log, build.zuul_event_id)
|
|
item = build.build_set.item
|
|
log.debug("Build %s of %s paused", build, item.change)
|
|
item.setResult(build)
|
|
|
|
# We need to resume builds because we could either have no children
|
|
# or have children that are already skipped.
|
|
self._resumeBuilds(build.build_set)
|
|
return True
|
|
|
|
def _resumeBuilds(self, build_set):
|
|
"""
|
|
Resumes all paused builds of a buildset that may be resumed.
|
|
"""
|
|
jobgraph = build_set.item.job_graph
|
|
for build in build_set.builds.values():
|
|
if not build.paused:
|
|
continue
|
|
# check if all child jobs are finished
|
|
child_builds = [build_set.builds.get(x.name) for x in
|
|
jobgraph.getDependentJobsRecursively(
|
|
build.job.name)]
|
|
all_completed = True
|
|
for child_build in child_builds:
|
|
if not child_build or not child_build.result:
|
|
all_completed = False
|
|
break
|
|
|
|
if all_completed:
|
|
self.sched.executor.resumeBuild(build)
|
|
build.paused = False
|
|
|
|
def _resetDependentBuilds(self, build_set, build):
|
|
jobgraph = build_set.item.job_graph
|
|
|
|
for job in jobgraph.getDependentJobsRecursively(build.job.name):
|
|
self.sched.cancelJob(build_set, job)
|
|
build = build_set.getBuild(job.name)
|
|
if build:
|
|
build_set.removeBuild(build)
|
|
|
|
def _cancelRunningBuilds(self, build_set):
|
|
item = build_set.item
|
|
for job in item.getJobs():
|
|
build = build_set.getBuild(job.name)
|
|
if not build or not build.result:
|
|
self.sched.cancelJob(build_set, job, final=True)
|
|
|
|
def onBuildCompleted(self, build):
|
|
log = get_annotated_logger(self.log, build.zuul_event_id)
|
|
item = build.build_set.item
|
|
|
|
log.debug("Build %s of %s completed" % (build, item.change))
|
|
item.pipeline.tenant.semaphore_handler.release(item, build.job)
|
|
|
|
if item.getJob(build.job.name) is None:
|
|
log.info("Build %s no longer in job graph for item %s",
|
|
build, item)
|
|
return
|
|
|
|
item.setResult(build)
|
|
log.debug("Item %s status is now:\n %s", item, item.formatStatus())
|
|
|
|
if build.retry:
|
|
if build.build_set.getJobNodeSet(build.job.name):
|
|
build.build_set.removeJobNodeSet(build.job.name)
|
|
|
|
# in case this was a paused build we need to retry all child jobs
|
|
self._resetDependentBuilds(build.build_set, build)
|
|
|
|
self._resumeBuilds(build.build_set)
|
|
|
|
if (item.project_pipeline_config.fail_fast and
|
|
build.failed and build.job.voting):
|
|
# If fail-fast is set and the build is not successful
|
|
# cancel all remaining jobs.
|
|
log.debug("Build %s failed and fail-fast enabled, canceling "
|
|
"running builds", build)
|
|
self._cancelRunningBuilds(build.build_set)
|
|
|
|
return True
|
|
|
|
def onFilesChangesCompleted(self, event):
|
|
build_set = event.build_set
|
|
item = build_set.item
|
|
item.change.files = event.files
|
|
build_set.files_state = build_set.COMPLETE
|
|
|
|
def onMergeCompleted(self, event):
|
|
build_set = event.build_set
|
|
item = build_set.item
|
|
item.change.containing_branches = event.item_in_branches
|
|
build_set.merge_state = build_set.COMPLETE
|
|
build_set.repo_state = event.repo_state
|
|
if event.merged:
|
|
build_set.commit = event.commit
|
|
items_ahead = item.getNonLiveItemsAhead()
|
|
for index, item in enumerate(items_ahead):
|
|
files = item.current_build_set.files
|
|
files.setFiles(event.files[:index + 1])
|
|
build_set.files.setFiles(event.files)
|
|
elif event.updated:
|
|
build_set.commit = (item.change.newrev or
|
|
'0000000000000000000000000000000000000000')
|
|
if not build_set.commit:
|
|
self.log.info("Unable to merge change %s" % item.change)
|
|
item.setUnableToMerge()
|
|
|
|
def onNodesProvisioned(self, event):
|
|
# TODOv3(jeblair): handle provisioning failure here
|
|
request = event.request
|
|
log = get_annotated_logger(self.log, request.event_id)
|
|
|
|
build_set = request.build_set
|
|
build_set.jobNodeRequestComplete(request.job.name,
|
|
request.nodeset)
|
|
if request.failed or not request.fulfilled:
|
|
log.info("Node request %s: failure for %s",
|
|
request, request.job.name)
|
|
build_set.item.setNodeRequestFailure(request.job)
|
|
self._resumeBuilds(request.build_set)
|
|
tenant = build_set.item.pipeline.tenant
|
|
tenant.semaphore_handler.release(build_set.item, request.job)
|
|
|
|
log.info("Completed node request %s for job %s of item %s "
|
|
"with nodes %s",
|
|
request, request.job, build_set.item, request.nodeset)
|
|
|
|
def reportItem(self, item):
|
|
log = get_annotated_logger(self.log, item.event)
|
|
if not item.reported:
|
|
# _reportItem() returns True if it failed to report.
|
|
item.reported = not self._reportItem(item)
|
|
if self.changes_merge:
|
|
succeeded = item.didAllJobsSucceed()
|
|
merged = item.reported
|
|
source = item.change.project.source
|
|
if merged:
|
|
merged = source.isMerged(item.change, item.change.branch)
|
|
change_queue = item.queue
|
|
if not (succeeded and merged):
|
|
if not item.job_graph or not item.job_graph.jobs:
|
|
error_reason = "did not have any jobs configured"
|
|
elif not succeeded:
|
|
error_reason = "failed tests"
|
|
else:
|
|
error_reason = "failed to merge"
|
|
log.info("Reported change %s did not merge because it %s,"
|
|
"status: all-succeeded: %s, merged: %s",
|
|
item.change, error_reason, succeeded, merged)
|
|
change_queue.decreaseWindowSize()
|
|
log.debug("%s window size decreased to %s",
|
|
change_queue, change_queue.window)
|
|
raise exceptions.MergeFailure(
|
|
"Change %s failed to merge" % item.change)
|
|
else:
|
|
log.info("Reported change %s status: all-succeeded: %s, "
|
|
"merged: %s", item.change, succeeded, merged)
|
|
change_queue.increaseWindowSize()
|
|
log.debug("%s window size increased to %s",
|
|
change_queue, change_queue.window)
|
|
|
|
zuul_driver = self.sched.connections.drivers['zuul']
|
|
tenant = self.pipeline.tenant
|
|
zuul_driver.onChangeMerged(tenant, item.change, source)
|
|
|
|
def _reportItem(self, item):
|
|
log = get_annotated_logger(self.log, item.event)
|
|
log.debug("Reporting change %s", item.change)
|
|
ret = True # Means error as returned by trigger.report
|
|
|
|
# In the case of failure, we may not hove completed an initial
|
|
# merge which would get the layout for this item, so in order
|
|
# to determine whether this item's project is in this
|
|
# pipeline, use the dynamic layout if available, otherwise,
|
|
# fall back to the current static layout as a best
|
|
# approximation.
|
|
layout = (item.layout or self.pipeline.tenant.layout)
|
|
|
|
project_in_pipeline = True
|
|
ppc = None
|
|
try:
|
|
ppc = layout.getProjectPipelineConfig(item)
|
|
except Exception:
|
|
log.exception("Invalid config for change %s", item.change)
|
|
if not ppc:
|
|
log.debug("Project %s not in pipeline %s for change %s",
|
|
item.change.project, self.pipeline, item.change)
|
|
project_in_pipeline = False
|
|
actions = self.pipeline.no_jobs_actions
|
|
item.setReportedResult('NO_JOBS')
|
|
elif item.getConfigErrors():
|
|
log.debug("Invalid config for change %s", item.change)
|
|
# TODOv3(jeblair): consider a new reporter action for this
|
|
actions = self.pipeline.merge_failure_actions
|
|
item.setReportedResult('CONFIG_ERROR')
|
|
elif item.didMergerFail():
|
|
actions = self.pipeline.merge_failure_actions
|
|
item.setReportedResult('MERGER_FAILURE')
|
|
elif item.wasDequeuedNeedingChange():
|
|
actions = self.pipeline.failure_actions
|
|
item.setReportedResult('FAILURE')
|
|
elif not item.getJobs():
|
|
# We don't send empty reports with +1
|
|
log.debug("No jobs for change %s", item.change)
|
|
actions = self.pipeline.no_jobs_actions
|
|
item.setReportedResult('NO_JOBS')
|
|
elif item.didAllJobsSucceed():
|
|
log.debug("success %s", self.pipeline.success_actions)
|
|
actions = self.pipeline.success_actions
|
|
item.setReportedResult('SUCCESS')
|
|
self.pipeline._consecutive_failures = 0
|
|
else:
|
|
actions = self.pipeline.failure_actions
|
|
item.setReportedResult('FAILURE')
|
|
self.pipeline._consecutive_failures += 1
|
|
if project_in_pipeline and self.pipeline._disabled:
|
|
actions = self.pipeline.disabled_actions
|
|
# Check here if we should disable so that we only use the disabled
|
|
# reporters /after/ the last disable_at failure is still reported as
|
|
# normal.
|
|
if (self.pipeline.disable_at and not self.pipeline._disabled and
|
|
self.pipeline._consecutive_failures >= self.pipeline.disable_at):
|
|
self.pipeline._disabled = True
|
|
if actions:
|
|
log.info("Reporting item %s, actions: %s", item, actions)
|
|
ret = self.sendReport(actions, item)
|
|
if ret:
|
|
log.error("Reporting item %s received: %s", item, ret)
|
|
return ret
|
|
|
|
def reportStats(self, item):
|
|
if not self.sched.statsd:
|
|
return
|
|
try:
|
|
# Update the gauge on enqueue and dequeue, but timers only
|
|
# when dequeing.
|
|
if item.dequeue_time:
|
|
dt = int((item.dequeue_time - item.enqueue_time) * 1000)
|
|
else:
|
|
dt = None
|
|
items = len(self.pipeline.getAllItems())
|
|
|
|
tenant = self.pipeline.tenant
|
|
basekey = 'zuul.tenant.%s' % tenant.name
|
|
key = '%s.pipeline.%s' % (basekey, self.pipeline.name)
|
|
# stats.timers.zuul.tenant.<tenant>.pipeline.<pipeline>.resident_time
|
|
# stats_counts.zuul.tenant.<tenant>.pipeline.<pipeline>.total_changes
|
|
# stats.gauges.zuul.tenant.<tenant>.pipeline.<pipeline>.current_changes
|
|
self.sched.statsd.gauge(key + '.current_changes', items)
|
|
if dt:
|
|
self.sched.statsd.timing(key + '.resident_time', dt)
|
|
self.sched.statsd.incr(key + '.total_changes')
|
|
if hasattr(item.change, 'branch'):
|
|
hostname = (item.change.project.canonical_hostname.
|
|
replace('.', '_'))
|
|
projectname = (item.change.project.name.
|
|
replace('.', '_').replace('/', '.'))
|
|
projectname = projectname.replace('.', '_').replace('/', '.')
|
|
branchname = item.change.branch.replace('.', '_').replace(
|
|
'/', '.')
|
|
# stats.timers.zuul.tenant.<tenant>.pipeline.<pipeline>.
|
|
# project.<host>.<project>.<branch>.resident_time
|
|
# stats_counts.zuul.tenant.<tenant>.pipeline.<pipeline>.
|
|
# project.<host>.<project>.<branch>.total_changes
|
|
key += '.project.%s.%s.%s' % (hostname, projectname,
|
|
branchname)
|
|
if dt:
|
|
self.sched.statsd.timing(key + '.resident_time', dt)
|
|
self.sched.statsd.incr(key + '.total_changes')
|
|
except Exception:
|
|
self.log.exception("Exception reporting pipeline stats")
|