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# -*- 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 argparse
import json
import logging
import os
import sys
import time
import traceback
from functools import partial
from mach.decorators import (
Command,
CommandArgument,
SettingsProvider,
SubCommand,
)
import gecko_taskgraph.main
from gecko_taskgraph.main import commands as taskgraph_commands
logger = logging.getLogger("taskcluster")
@SettingsProvider
class TaskgraphConfig(object):
@classmethod
def config_settings(cls):
return [
(
"taskgraph.diffcmd",
"string",
"The command to run with `./mach taskgraph --diff`",
"diff --report-identical-files "
"--label={attr}@{base} --label={attr}@{cur} -U20",
{},
)
]
def strtobool(value):
"""Convert string to boolean.
Wraps "distutils.util.strtobool", deferring the import of the package
in case it's not installed. Otherwise, we have a "chicken and egg problem" where
|mach bootstrap| would install the required package to enable "distutils.util", but
it can't because mach fails to interpret this file.
"""
from distutils.util import strtobool
return bool(strtobool(value))
def get_taskgraph_command_parser(name):
"""Given a command name, obtain its argument parser.
Args:
name (str): Name of the command.
Returns:
ArgumentParser: An ArgumentParser instance.
"""
command = taskgraph_commands[name]
parser = argparse.ArgumentParser()
for arg in command.func.args:
parser.add_argument(*arg[0], **arg[1])
parser.set_defaults(func=command.func, **command.defaults)
return parser
def get_taskgraph_decision_parser():
parser = get_taskgraph_command_parser("decision")
extra_args = [
(
["--optimize-target-tasks"],
{
"type": lambda flag: strtobool(flag),
"nargs": "?",
"const": "true",
"help": "If specified, this indicates whether the target "
"tasks are eligible for optimization. Otherwise, the default "
"for the project is used.",
},
),
(
["--include-push-tasks"],
{
"action": "store_true",
"help": "Whether tasks from the on-push graph should be re-used "
"in this graph. This allows cron graphs to avoid rebuilding "
"jobs that were built on-push.",
},
),
(
["--rebuild-kind"],
{
"dest": "rebuild_kinds",
"action": "append",
"default": argparse.SUPPRESS,
"help": "Kinds that should not be re-used from the on-push graph.",
},
),
(
["--comm-base-repository"],
{
"required": False,
"help": "URL for 'base' comm-* repository to clone",
},
),
(
["--comm-head-repository"],
{
"required": False,
"help": "URL for 'head' comm-* repository to fetch revision from",
},
),
(
["--comm-head-ref"],
{
"required": False,
"help": "comm-* Reference (this is same as rev usually for hg)",
},
),
(
["--comm-head-rev"],
{
"required": False,
"help": "Commit revision to use from head comm-* repository",
},
),
]
for arg in extra_args:
parser.add_argument(*arg[0], **arg[1])
return parser
@Command(
"taskgraph",
category="ci",
description="Manipulate TaskCluster task graphs defined in-tree",
)
def taskgraph_command(command_context):
"""The taskgraph subcommands all relate to the generation of task graphs
for Gecko continuous integration. A task graph is a set of tasks linked
by dependencies: for example, a binary must be built before it is tested,
and that build may further depend on various toolchains, libraries, etc.
"""
@SubCommand(
"taskgraph",
"tasks",
description="Show all tasks in the taskgraph",
parser=partial(get_taskgraph_command_parser, "tasks"),
)
def taskgraph_tasks(command_context, **options):
return run_show_taskgraph(command_context, **options)
@SubCommand(
"taskgraph",
"full",
description="Show the full taskgraph",
parser=partial(get_taskgraph_command_parser, "full"),
)
def taskgraph_full(command_context, **options):
return run_show_taskgraph(command_context, **options)
@SubCommand(
"taskgraph",
"target",
description="Show the target task set",
parser=partial(get_taskgraph_command_parser, "target"),
)
def taskgraph_target(command_context, **options):
return run_show_taskgraph(command_context, **options)
@SubCommand(
"taskgraph",
"target-graph",
description="Show the target taskgraph",
parser=partial(get_taskgraph_command_parser, "target-graph"),
)
def taskgraph_target_graph(command_context, **options):
return run_show_taskgraph(command_context, **options)
@SubCommand(
"taskgraph",
"optimized",
description="Show the optimized taskgraph",
parser=partial(get_taskgraph_command_parser, "optimized"),
)
def taskgraph_optimized(command_context, **options):
return run_show_taskgraph(command_context, **options)
@SubCommand(
"taskgraph",
"morphed",
description="Show the morphed taskgraph",
parser=partial(get_taskgraph_command_parser, "morphed"),
)
def taskgraph_morphed(command_context, **options):
return run_show_taskgraph(command_context, **options)
def run_show_taskgraph(command_context, **options):
# There are cases where we don't want to set up mach logging (e.g logs
# are being redirected to disk). By monkeypatching the 'setup_logging'
# function we can let 'taskgraph.main' decide whether or not to log to
# the terminal.
gecko_taskgraph.main.setup_logging = partial(
setup_logging,
command_context,
quiet=options["quiet"],
verbose=options["verbose"],
)
show_taskgraph = options.pop("func")
return show_taskgraph(options)
@SubCommand("taskgraph", "actions", description="Write actions.json to stdout")
@CommandArgument(
"--root", "-r", help="root of the taskgraph definition relative to topsrcdir"
)
@CommandArgument(
"--quiet", "-q", action="store_true", help="suppress all logging output"
)
@CommandArgument(
"--verbose",
"-v",
action="store_true",
help="include debug-level logging output",
)
@CommandArgument(
"--parameters",
"-p",
default="project=mozilla-central",
help="parameters file (.yml or .json; see `taskcluster/docs/parameters.rst`)`",
)
def taskgraph_actions(command_context, **options):
return show_actions(command_context, options)
@SubCommand(
"taskgraph",
"decision",
description="Run the decision task",
parser=get_taskgraph_decision_parser,
)
def taskgraph_decision(command_context, **options):
"""Run the decision task: generate a task graph and submit to
TaskCluster. This is only meant to be called within decision tasks,
and requires a great many arguments. Commands like `mach taskgraph
optimized` are better suited to use on the command line, and can take
the parameters file generated by a decision task."""
try:
setup_logging(command_context)
start = time.monotonic()
ret = taskgraph_commands["decision"].func(options)
end = time.monotonic()
if os.environ.get("MOZ_AUTOMATION") == "1":
perfherder_data = {
"framework": {"name": "build_metrics"},
"suites": [
{
"name": "decision",
"value": end - start,
"lowerIsBetter": True,
"shouldAlert": True,
"subtests": [],
}
],
}
print(
"PERFHERDER_DATA: {}".format(json.dumps(perfherder_data)),
file=sys.stderr,
)
return ret
except Exception:
traceback.print_exc()
sys.exit(1)
@SubCommand(
"taskgraph",
"cron",
description="Provide a pointer to the new `.cron.yml` handler.",
)
def taskgraph_cron(command_context, **options):
print(
'Handling of ".cron.yml" files has move to '
)
sys.exit(1)
@SubCommand(
"taskgraph",
"action-callback",
description="Run action callback used by action tasks",
parser=partial(get_taskgraph_command_parser, "action-callback"),
)
def action_callback(command_context, **options):
setup_logging(command_context)
taskgraph_commands["action-callback"].func(options)
@SubCommand(
"taskgraph",
"test-action-callback",
description="Run an action callback in a testing mode",
parser=partial(get_taskgraph_command_parser, "test-action-callback"),
)
def test_action_callback(command_context, **options):
setup_logging(command_context)
if not options["parameters"]:
options["parameters"] = "project=mozilla-central"
taskgraph_commands["test-action-callback"].func(options)
def setup_logging(command_context, quiet=False, verbose=True):
"""
Set up Python logging for all loggers, sending results to stderr (so
that command output can be redirected easily) and adding the typical
mach timestamp.
"""
# remove the old terminal handler
old = command_context.log_manager.replace_terminal_handler(None)
# re-add it, with level and fh set appropriately
if not quiet:
level = logging.DEBUG if verbose else logging.INFO
command_context.log_manager.add_terminal_logging(
fh=sys.stderr,
level=level,
write_interval=old.formatter.write_interval,
write_times=old.formatter.write_times,
)
# all of the taskgraph logging is unstructured logging
command_context.log_manager.enable_unstructured()
def show_actions(command_context, options):
import gecko_taskgraph
import gecko_taskgraph.actions
import gecko_taskgraph.generator
import gecko_taskgraph.parameters
try:
setup_logging(
command_context, quiet=options["quiet"], verbose=options["verbose"]
)
parameters = gecko_taskgraph.parameters.parameters_loader(options["parameters"])
tgg = gecko_taskgraph.generator.TaskGraphGenerator(
root_dir=options.get("root"),
parameters=parameters,
)
actions = gecko_taskgraph.actions.render_actions_json(
tgg.parameters,
tgg.graph_config,
decision_task_id="DECISION-TASK",
)
print(json.dumps(actions, sort_keys=True, indent=2, separators=(",", ": ")))
except Exception:
traceback.print_exc()
sys.exit(1)
@Command(
"taskcluster-load-image",
category="ci",
description="Load a pre-built Docker image. Note that you need to "
"have docker installed and running for this to work.",
parser=partial(get_taskgraph_command_parser, "load-image"),
)
def load_image(command_context, **kwargs):
taskgraph_commands["load-image"].func(kwargs)
@Command(
"taskcluster-build-image",
category="ci",
description="Build a Docker image",
parser=partial(get_taskgraph_command_parser, "build-image"),
)
def build_image(command_context, **kwargs):
try:
taskgraph_commands["build-image"].func(kwargs)
except Exception:
traceback.print_exc()
sys.exit(1)
@Command(
"taskcluster-image-digest",
category="ci",
description="Print the digest of the image of this name based on the "
"current contents of the tree.",
parser=partial(get_taskgraph_command_parser, "build-image"),
)
def image_digest(command_context, **kwargs):
taskgraph_commands["image-digest"].func(kwargs)
@Command(
"release-history",
category="ci",
description="Query balrog for release history used by enable partials generation",
)
@CommandArgument(
"-b",
"--branch",
help="The gecko project branch used in balrog, such as "
"mozilla-central, release, maple",
)
@CommandArgument(
"--product", default="Firefox", help="The product identifier, such as 'Firefox'"
)
def generate_partials_builds(command_context, product, branch):
from gecko_taskgraph.util.partials import populate_release_history
try:
import yaml
release_history = {"release_history": populate_release_history(product, branch)}
print(
yaml.safe_dump(
release_history, allow_unicode=True, default_flow_style=False
)
)
except Exception:
traceback.print_exc()
sys.exit(1)