forked from mirrors/gecko-dev
c288f18538
We started using the "backstop" index added by bug 1660506 to determine whether a push should be a backstop based on a time interval. The problem is that this index gets added by an index-task that runs after the decision task has completed. Therefore, if two pushes land at roughly the same time (i.e, the second decision task starts before the first completes), then they can both determine themselves as backstops. This patch gets around the problem by inserting the "backstop" index as early as possible (immediately after resolving parameters), so the chances of this happening become very low. It's still theoretically possible that it could happen again, but we don't need this to be 100% perfect. As long as it is rare, it's good enough. Depends on D91191 Differential Revision: https://phabricator.services.mozilla.com/D91192
523 lines
18 KiB
Python
523 lines
18 KiB
Python
# -*- coding: utf-8 -*-
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# 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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from __future__ import absolute_import, print_function, unicode_literals
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import os
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import json
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import logging
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import time
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import sys
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from collections import defaultdict
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import six
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from six import text_type
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from redo import retry
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import yaml
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from . import GECKO
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from .actions import render_actions_json
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from .create import create_tasks
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from .generator import TaskGraphGenerator
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from .parameters import Parameters, get_version, get_app_version
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from .taskgraph import TaskGraph
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from taskgraph.util.python_path import find_object
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from .try_option_syntax import parse_message
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from .util.backstop import is_backstop
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from .util.bugbug import push_schedules
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from .util.chunking import resolver
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from .util.hg import get_hg_revision_branch, get_hg_commit_message
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from .util.partials import populate_release_history
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from .util.schema import validate_schema, Schema
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from .util.taskcluster import get_artifact, insert_index
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from .util.taskgraph import find_decision_task, find_existing_tasks_from_previous_kinds
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from .util.yaml import load_yaml
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from voluptuous import Required, Optional
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logger = logging.getLogger(__name__)
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ARTIFACTS_DIR = 'artifacts'
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# For each project, this gives a set of parameters specific to the project.
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# See `taskcluster/docs/parameters.rst` for information on parameters.
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PER_PROJECT_PARAMETERS = {
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'try': {
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'target_tasks_method': 'try_tasks',
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},
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'try-comm-central': {
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'target_tasks_method': 'try_tasks',
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},
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'kaios-try': {
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'target_tasks_method': 'try_tasks',
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},
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'ash': {
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'target_tasks_method': 'default',
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},
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'cedar': {
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'target_tasks_method': 'default',
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},
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'oak': {
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'target_tasks_method': 'nightly_desktop',
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'release_type': 'nightly-oak',
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},
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'graphics': {
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'target_tasks_method': 'graphics_tasks',
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},
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'autoland': {
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'optimize_strategies': 'taskgraph.optimize:project.autoland',
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'target_tasks_method': 'autoland_tasks',
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},
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'mozilla-central': {
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'target_tasks_method': 'mozilla_central_tasks',
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'release_type': 'nightly',
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},
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'mozilla-beta': {
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'target_tasks_method': 'mozilla_beta_tasks',
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'release_type': 'beta',
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},
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'mozilla-release': {
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'target_tasks_method': 'mozilla_release_tasks',
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'release_type': 'release',
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},
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'mozilla-esr78': {
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'target_tasks_method': 'mozilla_esr78_tasks',
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'release_type': 'esr78',
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},
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'comm-central': {
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'target_tasks_method': 'default',
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'release_type': 'nightly',
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},
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'comm-beta': {
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'target_tasks_method': 'mozilla_beta_tasks',
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'release_type': 'beta',
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},
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'comm-esr78': {
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'target_tasks_method': 'mozilla_esr78_tasks',
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'release_type': 'release',
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},
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'pine': {
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'target_tasks_method': 'pine_tasks',
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},
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'kaios': {
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'target_tasks_method': 'kaios_tasks',
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},
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# the default parameters are used for projects that do not match above.
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'default': {
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'target_tasks_method': 'default',
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}
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}
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try_task_config_schema = Schema({
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Required('tasks'): [text_type],
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Optional('browsertime'): bool,
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Optional('chemspill-prio'): bool,
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Optional('disable-pgo'): bool,
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Optional('env'): {text_type: text_type},
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Optional('gecko-profile'): bool,
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Optional(
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"perftest-options",
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description="Options passed from `mach perftest` to try."
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): object,
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Optional(
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"optimize-strategies",
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description="Alternative optimization strategies to use instead of the default. "
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"A module path pointing to a dict to be use as the `strategy_override` "
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"argument in `taskgraph.optimize.optimize_task_graph`."
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): text_type,
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Optional('rebuild'): int,
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Optional('use-artifact-builds'): bool,
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Optional(
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"worker-overrides",
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description="Mapping of worker alias to worker pools to use for those aliases."
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): {text_type: text_type},
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Optional('routes'): [text_type],
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})
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"""
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Schema for try_task_config.json files.
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"""
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try_task_config_schema_v2 = Schema({
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Optional('parameters'): {text_type: object},
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})
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def full_task_graph_to_runnable_jobs(full_task_json):
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runnable_jobs = {}
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for label, node in six.iteritems(full_task_json):
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if not ('extra' in node['task'] and 'treeherder' in node['task']['extra']):
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continue
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th = node['task']['extra']['treeherder']
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runnable_jobs[label] = {
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'symbol': th['symbol']
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}
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for i in ('groupName', 'groupSymbol', 'collection'):
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if i in th:
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runnable_jobs[label][i] = th[i]
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if th.get('machine', {}).get('platform'):
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runnable_jobs[label]['platform'] = th['machine']['platform']
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return runnable_jobs
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def full_task_graph_to_manifests_by_task(full_task_json):
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manifests_by_task = defaultdict(list)
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for label, node in six.iteritems(full_task_json):
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manifests = node['attributes'].get('test_manifests')
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if not manifests:
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continue
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manifests_by_task[label].extend(manifests)
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return manifests_by_task
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def try_syntax_from_message(message):
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"""
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Parse the try syntax out of a commit message, returning '' if none is
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found.
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"""
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try_idx = message.find('try:')
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if try_idx == -1:
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return ''
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return message[try_idx:].split('\n', 1)[0]
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def taskgraph_decision(options, parameters=None):
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"""
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Run the decision task. This function implements `mach taskgraph decision`,
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and is responsible for
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* processing decision task command-line options into parameters
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* running task-graph generation exactly the same way the other `mach
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taskgraph` commands do
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* generating a set of artifacts to memorialize the graph
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* calling TaskCluster APIs to create the graph
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"""
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parameters = parameters or (
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lambda graph_config: get_decision_parameters(graph_config, options)
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)
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decision_task_id = os.environ['TASK_ID']
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# create a TaskGraphGenerator instance
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tgg = TaskGraphGenerator(
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root_dir=options.get('root'),
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parameters=parameters,
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decision_task_id=decision_task_id,
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write_artifacts=True,
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)
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# set additional index paths for the decision task
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set_decision_indexes(decision_task_id, tgg.parameters, tgg.graph_config)
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# write out the parameters used to generate this graph
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write_artifact('parameters.yml', dict(**tgg.parameters))
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# write out the public/actions.json file
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write_artifact(
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'actions.json',
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render_actions_json(tgg.parameters, tgg.graph_config, decision_task_id),
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)
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# write out the full graph for reference
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full_task_json = tgg.full_task_graph.to_json()
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write_artifact('full-task-graph.json', full_task_json)
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# write out the public/runnable-jobs.json file
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write_artifact('runnable-jobs.json', full_task_graph_to_runnable_jobs(full_task_json))
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# write out the public/manifests-by-task.json file
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write_artifact('manifests-by-task.json.gz',
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full_task_graph_to_manifests_by_task(full_task_json))
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# write out the public/tests-by-manifest.json file
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write_artifact('tests-by-manifest.json.gz', resolver.tests_by_manifest)
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# this is just a test to check whether the from_json() function is working
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_, _ = TaskGraph.from_json(full_task_json)
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# write out the target task set to allow reproducing this as input
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write_artifact('target-tasks.json', list(tgg.target_task_set.tasks.keys()))
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# write out the optimized task graph to describe what will actually happen,
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# and the map of labels to taskids
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write_artifact('task-graph.json', tgg.morphed_task_graph.to_json())
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write_artifact('label-to-taskid.json', tgg.label_to_taskid)
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# write bugbug scheduling information if it was invoked
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if len(push_schedules) > 0:
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write_artifact("bugbug-push-schedules.json", push_schedules.popitem()[1])
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# actually create the graph
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create_tasks(
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tgg.graph_config,
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tgg.morphed_task_graph,
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tgg.label_to_taskid,
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tgg.parameters,
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decision_task_id=decision_task_id,
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)
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def get_decision_parameters(graph_config, options):
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"""
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Load parameters from the command-line options for 'taskgraph decision'.
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This also applies per-project parameters, based on the given project.
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"""
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product_dir = graph_config['product-dir']
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parameters = {n: options[n] for n in [
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'base_repository',
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'head_repository',
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'head_rev',
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'head_ref',
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'project',
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'pushlog_id',
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'pushdate',
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'owner',
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'level',
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'target_tasks_method',
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'tasks_for',
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] if n in options}
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for n in (
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'comm_base_repository',
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'comm_head_repository',
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'comm_head_rev',
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'comm_head_ref',
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):
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if n in options and options[n] is not None:
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parameters[n] = options[n]
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commit_message = get_hg_commit_message(os.path.join(GECKO, product_dir))
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# Define default filter list, as most configurations shouldn't need
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# custom filters.
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parameters['filters'] = [
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'target_tasks_method',
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]
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parameters['existing_tasks'] = {}
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parameters['do_not_optimize'] = []
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parameters['build_number'] = 1
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parameters['version'] = get_version(product_dir)
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parameters['app_version'] = get_app_version(product_dir)
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parameters['message'] = try_syntax_from_message(commit_message)
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parameters['hg_branch'] = get_hg_revision_branch(GECKO, revision=parameters['head_rev'])
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parameters['next_version'] = None
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parameters['optimize_strategies'] = None
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parameters['optimize_target_tasks'] = True
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parameters['phabricator_diff'] = None
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parameters['release_type'] = ''
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parameters['release_eta'] = ''
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parameters['release_enable_partner_repack'] = False
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parameters['release_enable_partner_attribution'] = False
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parameters['release_partners'] = []
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parameters['release_partner_config'] = {}
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parameters['release_partner_build_number'] = 1
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parameters['release_enable_emefree'] = False
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parameters['release_product'] = None
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parameters['required_signoffs'] = []
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parameters['signoff_urls'] = {}
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parameters['test_manifest_loader'] = 'default'
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parameters['try_mode'] = None
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parameters['try_task_config'] = {}
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parameters['try_options'] = None
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# owner must be an email, but sometimes (e.g., for ffxbld) it is not, in which
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# case, fake it
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if '@' not in parameters['owner']:
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parameters['owner'] += '@noreply.mozilla.org'
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# use the pushdate as build_date if given, else use current time
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parameters['build_date'] = parameters['pushdate'] or int(time.time())
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# moz_build_date is the build identifier based on build_date
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parameters['moz_build_date'] = six.ensure_text(
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time.strftime("%Y%m%d%H%M%S", time.gmtime(parameters['build_date'])))
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project = parameters['project']
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try:
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parameters.update(PER_PROJECT_PARAMETERS[project])
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except KeyError:
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logger.warning("using default project parameters; add {} to "
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"PER_PROJECT_PARAMETERS in {} to customize behavior "
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"for this project".format(project, __file__))
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parameters.update(PER_PROJECT_PARAMETERS['default'])
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# `target_tasks_method` has higher precedence than `project` parameters
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if options.get('target_tasks_method'):
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parameters['target_tasks_method'] = options['target_tasks_method']
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# ..but can be overridden by the commit message: if it contains the special
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# string "DONTBUILD" and this is an on-push decision task, then use the
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# special 'nothing' target task method.
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if 'DONTBUILD' in commit_message and options['tasks_for'] == 'hg-push':
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parameters['target_tasks_method'] = 'nothing'
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if options.get('include_push_tasks'):
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get_existing_tasks(options.get('rebuild_kinds', []), parameters, graph_config)
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# If the target method is nightly, we should build partials. This means
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# knowing what has been released previously.
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# An empty release_history is fine, it just means no partials will be built
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parameters.setdefault('release_history', dict())
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if 'nightly' in parameters.get('target_tasks_method', ''):
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parameters['release_history'] = populate_release_history('Firefox', project)
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if options.get('try_task_config_file'):
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task_config_file = os.path.abspath(options.get('try_task_config_file'))
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else:
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# if try_task_config.json is present, load it
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task_config_file = os.path.join(os.getcwd(), 'try_task_config.json')
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# load try settings
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if 'try' in project and options['tasks_for'] == 'hg-push':
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set_try_config(parameters, task_config_file)
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if options.get('optimize_target_tasks') is not None:
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parameters['optimize_target_tasks'] = options['optimize_target_tasks']
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if 'decision-parameters' in graph_config['taskgraph']:
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find_object(graph_config['taskgraph']['decision-parameters'])(graph_config,
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parameters)
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# Determine if this should be a backstop push.
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parameters['backstop'] = is_backstop(parameters)
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result = Parameters(**parameters)
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result.check()
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return result
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def get_existing_tasks(rebuild_kinds, parameters, graph_config):
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"""
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Find the decision task corresponding to the on-push graph, and return
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a mapping of labels to task-ids from it. This will skip the kinds specificed
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by `rebuild_kinds`.
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"""
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try:
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decision_task = retry(
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find_decision_task,
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args=(parameters, graph_config),
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attempts=4,
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sleeptime=5*60,
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)
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except Exception:
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logger.exception("Didn't find existing push task.")
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sys.exit(1)
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_, task_graph = TaskGraph.from_json(get_artifact(decision_task, "public/full-task-graph.json"))
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parameters['existing_tasks'] = find_existing_tasks_from_previous_kinds(
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task_graph, [decision_task], rebuild_kinds
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)
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def set_try_config(parameters, task_config_file):
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if os.path.isfile(task_config_file):
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logger.info("using try tasks from {}".format(task_config_file))
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with open(task_config_file, 'r') as fh:
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task_config = json.load(fh)
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task_config_version = task_config.pop('version', 1)
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if task_config_version == 1:
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validate_schema(
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try_task_config_schema, task_config,
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"Invalid v1 `try_task_config.json`.",
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)
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parameters['try_mode'] = 'try_task_config'
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parameters['try_task_config'] = task_config
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elif task_config_version == 2:
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validate_schema(
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try_task_config_schema_v2, task_config,
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"Invalid v2 `try_task_config.json`.",
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)
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parameters.update(task_config['parameters'])
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return
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else:
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raise Exception(
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"Unknown `try_task_config.json` version: {}".format(task_config_version))
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if 'try:' in parameters['message']:
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parameters['try_mode'] = 'try_option_syntax'
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parameters.update(parse_message(parameters['message']))
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else:
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parameters['try_options'] = None
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if parameters['try_mode'] == 'try_task_config':
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# The user has explicitly requested a set of jobs, so run them all
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# regardless of optimization. Their dependencies can be optimized,
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# though.
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parameters['optimize_target_tasks'] = False
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else:
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# For a try push with no task selection, apply the default optimization
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# process to all of the tasks.
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parameters['optimize_target_tasks'] = True
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def set_decision_indexes(decision_task_id, params, graph_config):
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index_paths = []
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if params["backstop"]:
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index_paths.append("{trust-domain}.v2.{project}.latest.taskgraph.backstop")
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subs = params.copy()
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subs["trust-domain"] = graph_config["trust-domain"]
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index_paths = [i.format(**subs) for i in index_paths]
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for index_path in index_paths:
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insert_index(index_path, decision_task_id, use_proxy=True)
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def write_artifact(filename, data):
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logger.info('writing artifact file `{}`'.format(filename))
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if not os.path.isdir(ARTIFACTS_DIR):
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os.mkdir(ARTIFACTS_DIR)
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path = os.path.join(ARTIFACTS_DIR, filename)
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if filename.endswith('.yml'):
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with open(path, 'w') as f:
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yaml.safe_dump(data, f, allow_unicode=True, default_flow_style=False)
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elif filename.endswith('.json'):
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with open(path, 'w') as f:
|
|
json.dump(data, f, sort_keys=True, indent=2, separators=(',', ': '))
|
|
elif filename.endswith('.json.gz'):
|
|
import gzip
|
|
with gzip.open(path, 'wb') as f:
|
|
f.write(json.dumps(data).encode('utf-8'))
|
|
else:
|
|
raise TypeError("Don't know how to write to {}".format(filename))
|
|
|
|
|
|
def read_artifact(filename):
|
|
path = os.path.join(ARTIFACTS_DIR, filename)
|
|
if filename.endswith('.yml'):
|
|
return load_yaml(path, filename)
|
|
elif filename.endswith('.json'):
|
|
with open(path, 'r') as f:
|
|
return json.load(f)
|
|
elif filename.endswith('.json.gz'):
|
|
import gzip
|
|
with gzip.open(path, 'rb') as f:
|
|
return json.load(f.decode('utf-8'))
|
|
else:
|
|
raise TypeError("Don't know how to read {}".format(filename))
|
|
|
|
|
|
def rename_artifact(src, dest):
|
|
os.rename(os.path.join(ARTIFACTS_DIR, src), os.path.join(ARTIFACTS_DIR, dest))
|