gecko-dev/taskcluster/taskgraph/decision.py

291 строка
10 KiB
Python

# -*- coding: utf-8 -*-
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
from __future__ import absolute_import, print_function, unicode_literals
import os
import json
import logging
import time
import yaml
from .generator import TaskGraphGenerator
from .create import create_tasks
from .parameters import Parameters
from .taskgraph import TaskGraph
from .try_option_syntax import parse_message
from .actions import render_actions_json
from taskgraph.util.partials import populate_release_history
logger = logging.getLogger(__name__)
ARTIFACTS_DIR = 'artifacts'
# For each project, this gives a set of parameters specific to the project.
# See `taskcluster/docs/parameters.rst` for information on parameters.
PER_PROJECT_PARAMETERS = {
'try': {
'target_tasks_method': 'try_tasks',
# By default, the `try_option_syntax` `target_task_method` ignores this
# parameter, and enables/disables nightlies depending whether
# `--include-nightly` is specified in the commit message.
# We're setting the `include_nightly` parameter to True here for when
# we submit decision tasks against Try that use other
# `target_task_method`s, like `nightly_fennec` or `mozilla_beta_tasks`,
# which reference the `include_nightly` parameter.
'include_nightly': True,
},
'try-comm-central': {
'target_tasks_method': 'try_tasks',
'include_nightly': True,
},
'ash': {
'target_tasks_method': 'ash_tasks',
'optimize_target_tasks': True,
'include_nightly': False,
},
'cedar': {
'target_tasks_method': 'cedar_tasks',
'optimize_target_tasks': True,
'include_nightly': False,
},
'graphics': {
'target_tasks_method': 'graphics_tasks',
'optimize_target_tasks': True,
'include_nightly': False,
},
'mozilla-beta': {
'target_tasks_method': 'mozilla_beta_tasks',
'optimize_target_tasks': True,
'include_nightly': True,
},
'mozilla-release': {
'target_tasks_method': 'mozilla_release_tasks',
'optimize_target_tasks': True,
'include_nightly': True,
},
'pine': {
'target_tasks_method': 'pine_tasks',
'optimize_target_tasks': True,
'include_nightly': False,
},
# the default parameters are used for projects that do not match above.
'default': {
'target_tasks_method': 'default',
'optimize_target_tasks': True,
'include_nightly': False,
}
}
def full_task_graph_to_runnable_jobs(full_task_json):
runnable_jobs = {}
for label, node in full_task_json.iteritems():
if not ('extra' in node['task'] and 'treeherder' in node['task']['extra']):
continue
th = node['task']['extra']['treeherder']
runnable_jobs[label] = {
'symbol': th['symbol']
}
for i in ('groupName', 'groupSymbol', 'collection'):
if i in th:
runnable_jobs[label][i] = th[i]
if th.get('machine', {}).get('platform'):
runnable_jobs[label]['platform'] = th['machine']['platform']
return runnable_jobs
def taskgraph_decision(options, parameters=None):
"""
Run the decision task. This function implements `mach taskgraph decision`,
and is responsible for
* processing decision task command-line options into parameters
* running task-graph generation exactly the same way the other `mach
taskgraph` commands do
* generating a set of artifacts to memorialize the graph
* calling TaskCluster APIs to create the graph
"""
parameters = parameters or get_decision_parameters(options)
# create a TaskGraphGenerator instance
tgg = TaskGraphGenerator(
root_dir=options.get('root'),
parameters=parameters)
# write out the parameters used to generate this graph
write_artifact('parameters.yml', dict(**parameters))
# write out the public/actions.json file
write_artifact('actions.json', render_actions_json(parameters))
# write out the full graph for reference
full_task_json = tgg.full_task_graph.to_json()
write_artifact('full-task-graph.json', full_task_json)
# write out the public/runnable-jobs.json.gz file
write_artifact('runnable-jobs.json.gz', full_task_graph_to_runnable_jobs(full_task_json))
# this is just a test to check whether the from_json() function is working
_, _ = TaskGraph.from_json(full_task_json)
# write out the target task set to allow reproducing this as input
write_artifact('target-tasks.json', tgg.target_task_set.tasks.keys())
# write out the optimized task graph to describe what will actually happen,
# and the map of labels to taskids
write_artifact('task-graph.json', tgg.morphed_task_graph.to_json())
write_artifact('label-to-taskid.json', tgg.label_to_taskid)
# actually create the graph
create_tasks(tgg.morphed_task_graph, tgg.label_to_taskid, parameters)
def get_decision_parameters(options):
"""
Load parameters from the command-line options for 'taskgraph decision'.
This also applies per-project parameters, based on the given project.
"""
parameters = {n: options[n] for n in [
'base_repository',
'head_repository',
'head_rev',
'head_ref',
'message',
'project',
'pushlog_id',
'pushdate',
'owner',
'level',
'target_tasks_method',
] if n in options}
for n in (
'comm_base_repository',
'comm_head_repository',
'comm_head_rev',
'comm_head_ref',
):
if n in options and options[n] is not None:
parameters[n] = options[n]
# Define default filter list, as most configurations shouldn't need
# custom filters.
parameters['filters'] = [
'check_servo',
'target_tasks_method',
]
parameters['existing_tasks'] = {}
parameters['do_not_optimize'] = []
parameters['build_number'] = 1
parameters['next_version'] = None
parameters['desktop_release_type'] = ''
# owner must be an email, but sometimes (e.g., for ffxbld) it is not, in which
# case, fake it
if '@' not in parameters['owner']:
parameters['owner'] += '@noreply.mozilla.org'
# use the pushdate as build_date if given, else use current time
parameters['build_date'] = parameters['pushdate'] or int(time.time())
# moz_build_date is the build identifier based on build_date
parameters['moz_build_date'] = time.strftime("%Y%m%d%H%M%S",
time.gmtime(parameters['build_date']))
project = parameters['project']
try:
parameters.update(PER_PROJECT_PARAMETERS[project])
except KeyError:
logger.warning("using default project parameters; add {} to "
"PER_PROJECT_PARAMETERS in {} to customize behavior "
"for this project".format(project, __file__))
parameters.update(PER_PROJECT_PARAMETERS['default'])
# `target_tasks_method` has higher precedence than `project` parameters
if options.get('target_tasks_method'):
parameters['target_tasks_method'] = options['target_tasks_method']
# If the target method is nightly, we should build partials. This means
# knowing what has been released previously.
# An empty release_history is fine, it just means no partials will be built
parameters.setdefault('release_history', dict())
if 'nightly' in parameters.get('target_tasks_method', ''):
parameters['release_history'] = populate_release_history('Firefox', project)
if options.get('try_task_config_file'):
task_config_file = os.path.abspath(options.get('try_task_config_file'))
else:
# if try_task_config.json is present, load it
task_config_file = os.path.join(os.getcwd(), 'try_task_config.json')
# load try settings
if 'try' in project:
parameters['try_mode'] = None
if os.path.isfile(task_config_file):
logger.info("using try tasks from {}".format(task_config_file))
parameters['try_mode'] = 'try_task_config'
with open(task_config_file, 'r') as fh:
parameters['try_task_config'] = json.load(fh)
else:
parameters['try_task_config'] = None
if 'try:' in parameters['message']:
parameters['try_mode'] = 'try_option_syntax'
args = parse_message(parameters['message'])
parameters['try_options'] = args
else:
parameters['try_options'] = None
if parameters['try_mode']:
# The user has explicitly requested a set of jobs, so run them all
# regardless of optimization. Their dependencies can be optimized,
# though.
parameters['optimize_target_tasks'] = False
else:
# For a try push with no task selection, apply the default optimization
# process to all of the tasks.
parameters['optimize_target_tasks'] = True
else:
parameters['try_mode'] = None
parameters['try_task_config'] = None
parameters['try_options'] = None
result = Parameters(**parameters)
result.check()
return result
def write_artifact(filename, data):
logger.info('writing artifact file `{}`'.format(filename))
if not os.path.isdir(ARTIFACTS_DIR):
os.mkdir(ARTIFACTS_DIR)
path = os.path.join(ARTIFACTS_DIR, filename)
if filename.endswith('.yml'):
with open(path, 'w') as f:
yaml.safe_dump(data, f, allow_unicode=True, default_flow_style=False)
elif filename.endswith('.json'):
with open(path, 'w') as f:
json.dump(data, f, sort_keys=True, indent=2, separators=(',', ': '))
elif filename.endswith('.gz'):
import gzip
with gzip.open(path, 'wb') as f:
f.write(json.dumps(data))
else:
raise TypeError("Don't know how to write to {}".format(filename))