forked from mirrors/gecko-dev
faa5410de1
# ignore-this-changeset Differential Revision: https://phabricator.services.mozilla.com/D162661
136 lines
4.8 KiB
Python
136 lines
4.8 KiB
Python
# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this
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# file, You can obtain one at http://mozilla.org/MPL/2.0/.
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import logging
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from datetime import datetime
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import mozpack.path as mozpath
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from mozbuild.base import MozbuildObject
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from mozbuild.util import memoize
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from taskgraph.optimize.base import OptimizationStrategy, register_strategy
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from taskgraph.util.taskcluster import find_task_id
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from gecko_taskgraph import files_changed
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from gecko_taskgraph.util.taskcluster import status_task
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logger = logging.getLogger(__name__)
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@register_strategy("index-search")
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class IndexSearch(OptimizationStrategy):
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# A task with no dependencies remaining after optimization will be replaced
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# if artifacts exist for the corresponding index_paths.
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# Otherwise, we're in one of the following cases:
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# - the task has un-optimized dependencies
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# - the artifacts have expired
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# - some changes altered the index_paths and new artifacts need to be
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# created.
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# In every of those cases, we need to run the task to create or refresh
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# artifacts.
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fmt = "%Y-%m-%dT%H:%M:%S.%fZ"
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def should_replace_task(self, task, params, deadline, index_paths):
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"Look for a task with one of the given index paths"
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for index_path in index_paths:
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try:
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task_id = find_task_id(index_path)
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status = status_task(task_id)
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# status can be `None` if we're in `testing` mode
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# (e.g. test-action-callback)
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if not status or status.get("state") in ("exception", "failed"):
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continue
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if deadline and datetime.strptime(
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status["expires"], self.fmt
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) < datetime.strptime(deadline, self.fmt):
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continue
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return task_id
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except KeyError:
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# 404 will end up here and go on to the next index path
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pass
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return False
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@register_strategy("skip-unless-changed")
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class SkipUnlessChanged(OptimizationStrategy):
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def should_remove_task(self, task, params, file_patterns):
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# pushlog_id == -1 - this is the case when run from a cron.yml job
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if params.get("pushlog_id") == -1:
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return False
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changed = files_changed.check(params, file_patterns)
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if not changed:
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logger.debug(
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"no files found matching a pattern in `skip-unless-changed` for "
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+ task.label
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)
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return True
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return False
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@register_strategy("skip-unless-schedules")
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class SkipUnlessSchedules(OptimizationStrategy):
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@memoize
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def scheduled_by_push(self, repository, revision):
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changed_files = files_changed.get_changed_files(repository, revision)
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mbo = MozbuildObject.from_environment()
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# the decision task has a sparse checkout, so, mozbuild_reader will use
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# a MercurialRevisionFinder with revision '.', which should be the same
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# as `revision`; in other circumstances, it will use a default reader
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rdr = mbo.mozbuild_reader(config_mode="empty")
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components = set()
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for p, m in rdr.files_info(changed_files).items():
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components |= set(m["SCHEDULES"].components)
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return components
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def should_remove_task(self, task, params, conditions):
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if params.get("pushlog_id") == -1:
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return False
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scheduled = self.scheduled_by_push(
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params["head_repository"], params["head_rev"]
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)
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conditions = set(conditions)
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# if *any* of the condition components are scheduled, do not optimize
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if conditions & scheduled:
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return False
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return True
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@register_strategy("skip-unless-has-relevant-tests")
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class SkipUnlessHasRelevantTests(OptimizationStrategy):
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"""Optimizes tasks that don't run any tests that were
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in child directories of a modified file.
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"""
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@memoize
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def get_changed_dirs(self, repo, rev):
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changed = map(mozpath.dirname, files_changed.get_changed_files(repo, rev))
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# Filter out empty directories (from files modified in the root).
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# Otherwise all tasks would be scheduled.
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return {d for d in changed if d}
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def should_remove_task(self, task, params, _):
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if not task.attributes.get("test_manifests"):
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return True
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for d in self.get_changed_dirs(params["head_repository"], params["head_rev"]):
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for t in task.attributes["test_manifests"]:
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if t.startswith(d):
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logger.debug(
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"{} runs a test path ({}) contained by a modified file ({})".format(
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task.label, t, d
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)
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)
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return False
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return True
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