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# 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
import argparse
import importlib
import os
import sys
from mach.decorators import Command, SubCommand
from mach.util import get_state_dir
from mozbuild.base import BuildEnvironmentNotFoundException
from mozbuild.util import memoize
CONFIG_ENVIRONMENT_NOT_FOUND = """
No config environment detected. This means we are unable to properly
detect test files in the specified paths or tags. Please run:
$ mach configure
and try again.
""".lstrip()
class get_parser:
def __init__(self, selector):
self.selector = selector
def __call__(self):
mod = importlib.import_module("tryselect.selectors.{}".format(self.selector))
return getattr(mod, "{}Parser".format(self.selector.capitalize()))()
def generic_parser():
from tryselect.cli import BaseTryParser
parser = BaseTryParser()
parser.add_argument("argv", nargs=argparse.REMAINDER)
return parser
def init(command_context):
from tryselect import push
push.MAX_HISTORY = command_context._mach_context.settings["try"]["maxhistory"]
@memoize
def presets(command_context):
from tryselect.preset import MergedHandler
# Create our handler using both local and in-tree presets. The first
# path in this list will be treated as the 'user' file for the purposes
# of saving and editing. All subsequent paths are 'read-only'. We check
# an environment variable first for testing purposes.
if os.environ.get("MACH_TRY_PRESET_PATHS"):
preset_paths = os.environ["MACH_TRY_PRESET_PATHS"].split(os.pathsep)
else:
preset_paths = [
os.path.join(get_state_dir(), "try_presets.yml"),
os.path.join(
command_context.topsrcdir, "tools", "tryselect", "try_presets.yml"
),
]
return MergedHandler(*preset_paths)
def handle_presets(
command_context, preset_action=None, save=None, preset=None, **kwargs
):
"""Handle preset related arguments.
This logic lives here so that the underlying selectors don't need
special preset handling. They can all save and load presets the same
way.
"""
from tryselect.util.dicttools import merge
user_presets = presets(command_context).handlers[0]
if preset_action == "list":
presets(command_context).list()
sys.exit()
if preset_action == "edit":
user_presets.edit()
sys.exit()
parser = command_context._mach_context.handler.parser
subcommand = command_context._mach_context.handler.subcommand
if "preset" not in parser.common_groups:
return kwargs
default = parser.get_default
if save:
selector = (
subcommand or command_context._mach_context.settings["try"]["default"]
)
# Only save non-default values for simplicity.
kwargs = {k: v for k, v in kwargs.items() if v != default(k)}
user_presets.save(save, selector=selector, **kwargs)
print("preset saved, run with: --preset={}".format(save))
sys.exit()
if preset:
if preset not in presets(command_context):
command_context._mach_context.parser.error(
"preset '{}' does not exist".format(preset)
)
name = preset
preset = presets(command_context)[name]
selector = preset.pop("selector")
preset.pop("description", None) # description isn't used by any selectors
if not subcommand:
subcommand = selector
elif subcommand != selector:
print(
"error: preset '{}' exists for a different selector "
"(did you mean to run 'mach try {}' instead?)".format(name, selector)
)
sys.exit(1)
# Order of precedence is defaults -> presets -> cli. Configuration
# from the right overwrites configuration from the left.
defaults = {}
nondefaults = {}
for k, v in kwargs.items():
if v == default(k):
defaults[k] = v
else:
nondefaults[k] = v
kwargs = merge(defaults, preset, nondefaults)
return kwargs
def handle_try_params(command_context, **kwargs):
from tryselect.util.dicttools import merge
to_validate = []
kwargs.setdefault("try_config_params", {})
for cls in command_context._mach_context.handler.parser.task_configs.values():
params = cls.get_parameters(**kwargs)
if params is not None:
to_validate.append(cls)
kwargs["try_config_params"] = merge(kwargs["try_config_params"], params)
for name in cls.dests:
del kwargs[name]
# Validate task_configs after they have all been parsed to avoid
# depending on the order they were processed.
for cls in to_validate:
cls.validate(**kwargs)
return kwargs
def run(command_context, **kwargs):
kwargs = handle_presets(command_context, **kwargs)
if command_context._mach_context.handler.parser.task_configs:
kwargs = handle_try_params(command_context, **kwargs)
mod = importlib.import_module(
"tryselect.selectors.{}".format(
command_context._mach_context.handler.subcommand
)
)
return mod.run(**kwargs)
@Command(
"try",
category="ci",
description="Push selected tasks to the try server",
parser=generic_parser,
virtualenv_name="try",
)
def try_default(command_context, argv=None, **kwargs):
"""Push selected tests to the try server.
The |mach try| command is a frontend for scheduling tasks to
run on try server using selectors. A selector is a subcommand
that provides its own set of command line arguments and are
listed below.
If no subcommand is specified, the `auto` selector is run by
default. Run |mach try auto --help| for more information on
scheduling with the `auto` selector.
"""
init(command_context)
subcommand = command_context._mach_context.handler.subcommand
# We do special handling of presets here so that `./mach try --preset foo`
# works no matter what subcommand 'foo' was saved with.
preset = kwargs["preset"]
if preset:
if preset not in presets(command_context):
command_context._mach_context.handler.parser.error(
"preset '{}' does not exist".format(preset)
)
subcommand = presets(command_context)[preset]["selector"]
sub = subcommand or command_context._mach_context.settings["try"]["default"]
return command_context._mach_context.commands.dispatch(
"try", command_context._mach_context, subcommand=sub, argv=argv, **kwargs
)
@SubCommand(
"try",
"fuzzy",
description="Select tasks on try using a fuzzy finder",
parser=get_parser("fuzzy"),
virtualenv_name="try",
)
def try_fuzzy(command_context, **kwargs):
"""Select which tasks to run with a fuzzy finding interface (fzf).
When entering the fzf interface you'll be confronted by two panes. The
one on the left contains every possible task you can schedule, the one
on the right contains the list of selected tasks. In other words, the
tasks that will be scheduled once you you press <enter>.
At first fzf will automatically select whichever task is under your
cursor, which simplifies the case when you are looking for a single
task. But normally you'll want to select many tasks. To accomplish
you'll generally start by typing a query in the search bar to filter
down the list of tasks (see Extended Search below). Then you'll either:
A) Move the cursor to each task you want and press <tab> to select it.
Notice it now shows up in the pane to the right.
OR
B) Press <ctrl-a> to select every task that matches your filter.
You can delete your query, type a new one and select further tasks as
many times as you like. Once you are happy with your selection, press
<enter> to push the selected tasks to try.
All selected task labels and their dependencies will be scheduled. This
means you can select a test task and its build will automatically be
filled in.
Keyboard Shortcuts
------------------
When in the fuzzy finder interface, start typing to filter down the
task list. Then use the following keyboard shortcuts to select tasks:
Ctrl-K / Up => Move cursor up
Ctrl-J / Down => Move cursor down
Tab => Select task + move cursor down
Shift-Tab => Select task + move cursor up
Ctrl-A => Select all currently filtered tasks
Ctrl-D => De-select all currently filtered tasks
Ctrl-T => Toggle select all currently filtered tasks
Alt-Bspace => Clear query from input bar
Enter => Accept selection and exit
Ctrl-C / Esc => Cancel selection and exit
? => Toggle preview pane
There are many more shortcuts enabled by default, you can also define
your own shortcuts by setting `--bind` in the $FZF_DEFAULT_OPTS
environment variable. See `man fzf` for more info.
Extended Search
---------------
When typing in search terms, the following modifiers can be applied:
'word: exact match (line must contain the literal string "word")
^word: exact prefix match (line must start with literal "word")
word$: exact suffix match (line must end with literal "word")
!word: exact negation match (line must not contain literal "word")
'a | 'b: OR operator (joins two exact match operators together)
For example:
^start 'exact | !ignore fuzzy end$
Documentation
-------------
For more detailed documentation, please see:
"""
init(command_context)
if kwargs.pop("interactive"):
kwargs["query"].append("INTERACTIVE")
if kwargs.pop("intersection"):
kwargs["intersect_query"] = kwargs["query"]
del kwargs["query"]
if kwargs.get("save") and not kwargs.get("query"):
# If saving preset without -q/--query, allow user to use the
# interface to build the query.
kwargs_copy = kwargs.copy()
kwargs_copy["dry_run"] = True
kwargs_copy["save"] = None
kwargs["query"] = run(command_context, save_query=True, **kwargs_copy)
if not kwargs["query"]:
return
if kwargs.get("paths"):
kwargs["test_paths"] = kwargs["paths"]
return run(command_context, **kwargs)
@SubCommand(
"try",
"chooser",
description="Schedule tasks by selecting them from a web interface.",
parser=get_parser("chooser"),
virtualenv_name="try",
)
def try_chooser(command_context, **kwargs):
"""Push tasks selected from a web interface to try.
This selector will build the taskgraph and spin up a dynamically
created 'trychooser-like' web-page on the localhost. After a selection
has been made, pressing the 'Push' button will automatically push the
selection to try.
"""
init(command_context)
command_context.activate_virtualenv()
return run(command_context, **kwargs)
@SubCommand(
"try",
"auto",
description="Automatically determine which tasks to run. This runs the same "
"set of tasks that would be run on autoland. This "
"selector is EXPERIMENTAL.",
parser=get_parser("auto"),
virtualenv_name="try",
)
def try_auto(command_context, **kwargs):
init(command_context)
return run(command_context, **kwargs)
@SubCommand(
"try",
"again",
description="Schedule a previously generated (non try syntax) push again.",
parser=get_parser("again"),
virtualenv_name="try",
)
def try_again(command_context, **kwargs):
init(command_context)
return run(command_context, **kwargs)
@SubCommand(
"try",
"empty",
description="Push to try without scheduling any tasks.",
parser=get_parser("empty"),
virtualenv_name="try",
)
def try_empty(command_context, **kwargs):
"""Push to try, running no builds or tests
This selector does not prompt you to run anything, it just pushes
your patches to try, running no builds or tests by default. After
the push finishes, you can manually add desired jobs to your push
via Treeherder's Add New Jobs feature, located in the per-push
menu.
"""
init(command_context)
return run(command_context, **kwargs)
@SubCommand(
"try",
"syntax",
description="Select tasks on try using try syntax",
parser=get_parser("syntax"),
virtualenv_name="try",
)
def try_syntax(command_context, **kwargs):
"""Push the current tree to try, with the specified syntax.
Build options, platforms and regression tests may be selected
using the usual try options (-b, -p and -u respectively). In
addition, tests in a given directory may be automatically
selected by passing that directory as a positional argument to the
command. For example:
mach try -b d -p linux64 dom testing/web-platform/tests/dom
would schedule a try run for linux64 debug consisting of all
tests under dom/ and testing/web-platform/tests/dom.
Test selection using positional arguments is available for
mochitests, reftests, xpcshell tests and web-platform-tests.
Tests may be also filtered by passing --tag to the command,
which will run only tests marked as having the specified
tags e.g.
mach try -b d -p win64 --tag media
would run all tests tagged 'media' on Windows 64.
If both positional arguments or tags and -u are supplied, the
suites in -u will be run in full. Where tests are selected by
positional argument they will be run in a single chunk.
If no build option is selected, both debug and opt will be
scheduled. If no platform is selected a default is taken from
the AUTOTRY_PLATFORM_HINT environment variable, if set.
The command requires either its own mercurial extension ("push-to-try",
installable from mach vcs-setup) or a git repo using git-cinnabar
(installable from mach vcs-setup).
"""
init(command_context)
try:
if command_context.substs.get("MOZ_ARTIFACT_BUILDS"):
kwargs["local_artifact_build"] = True
except BuildEnvironmentNotFoundException:
# If we don't have a build locally, we can't tell whether
# an artifact build is desired, but we still want the
# command to succeed, if possible.
pass
config_status = os.path.join(command_context.topobjdir, "config.status")
if (kwargs["paths"] or kwargs["tags"]) and not config_status:
print(CONFIG_ENVIRONMENT_NOT_FOUND)
sys.exit(1)
return run(command_context, **kwargs)
@SubCommand(
"try",
"coverage",
description="Select tasks on try using coverage data",
parser=get_parser("coverage"),
virtualenv_name="try",
)
def try_coverage(command_context, **kwargs):
"""Select which tasks to use using coverage data."""
init(command_context)
return run(command_context, **kwargs)
@SubCommand(
"try",
"release",
description="Push the current tree to try, configured for a staging release.",
parser=get_parser("release"),
virtualenv_name="try",
)
def try_release(command_context, **kwargs):
"""Push the current tree to try, configured for a staging release."""
init(command_context)
return run(command_context, **kwargs)
@SubCommand(
"try",
"scriptworker",
description="Run scriptworker tasks against a recent release.",
parser=get_parser("scriptworker"),
virtualenv_name="try",
)
def try_scriptworker(command_context, **kwargs):
"""Run scriptworker tasks against a recent release.
Requires VPN and shipit access.
"""
init(command_context)
return run(command_context, **kwargs)
@SubCommand(
"try",
"compare",
description="Push two try jobs, one on your current commit and another on the one you specify",
parser=get_parser("compare"),
virtualenv_name="try",
)
def try_compare(command_context, **kwargs):
init(command_context)
return run(command_context, **kwargs)
@SubCommand(
"try",
"perf",
description="Try selector for running performance tests.",
parser=get_parser("perf"),
virtualenv_name="try",
)
def try_perf(command_context, **kwargs):
init(command_context)
return run(command_context, **kwargs)