def test_layout_tests_dir_with_backslash_sep(self):
filesystem = MockFileSystem()
filesystem.sep = '\\'
filesystem.path_to_module = lambda _: (
'C:\\mock-checkout\\third_party\\blink\\tools\\blinkpy\\foo.py')
finder = PathFinder(filesystem)
if TESTS_IN_BLINK:
self.assertEqual(
finder.layout_tests_dir(),
'C:\\mock-checkout\\third_party\\blink\\web_tests')
else:
self.assertEqual(
finder.layout_tests_dir(),
'C:\\mock-checkout\\third_party\\WebKit\\LayoutTests')
def _test_base_path(self):
"""Returns the relative path from the repo root to the layout tests."""
finder = PathFinder(self._tool.filesystem)
return self._tool.filesystem.relpath(
finder.layout_tests_dir(), finder.path_from_chromium_base()) + '/'
def test_layout_tests_dir(self):
finder = PathFinder(MockFileSystem())
self.assertEqual(finder.layout_tests_dir(),
'/mock-checkout/' + RELATIVE_WEB_TESTS[:-1])
class ImportNotifier(object):
def __init__(self, host, chromium_git, local_wpt):
self.host = host
self.git = chromium_git
self.local_wpt = local_wpt
self._monorail_api = MonorailAPI
self.default_port = host.port_factory.get()
self.finder = PathFinder(host.filesystem)
self.owners_extractor = DirectoryOwnersExtractor(host.filesystem)
self.new_failures_by_directory = defaultdict(list)
def main(self,
wpt_revision_start,
wpt_revision_end,
rebaselined_tests,
test_expectations,
issue,
patchset,
dry_run=True,
service_account_key_json=None):
"""Files bug reports for new failures.
Args:
wpt_revision_start: The start of the imported WPT revision range
(exclusive), i.e. the last imported revision.
wpt_revision_end: The end of the imported WPT revision range
(inclusive), i.e. the current imported revision.
rebaselined_tests: A list of test names that have been rebaselined.
test_expectations: A dictionary mapping names of tests that cannot
be rebaselined to a list of new test expectation lines.
issue: The issue number of the import CL (a string).
patchset: The patchset number of the import CL (a string).
dry_run: If True, no bugs will be actually filed to crbug.com.
service_account_key_json: The path to a JSON private key of a
service account for accessing Monorail. If None, try to get an
access token from luci-auth.
Note: "test names" are paths of the tests relative to LayoutTests.
"""
gerrit_url = SHORT_GERRIT_PREFIX + issue
gerrit_url_with_ps = gerrit_url + '/' + patchset + '/'
changed_test_baselines = self.find_changed_baselines_of_tests(
rebaselined_tests)
self.examine_baseline_changes(changed_test_baselines,
gerrit_url_with_ps)
self.examine_new_test_expectations(test_expectations)
bugs = self.create_bugs_from_new_failures(wpt_revision_start,
wpt_revision_end, gerrit_url)
self.file_bugs(bugs, dry_run, service_account_key_json)
def find_changed_baselines_of_tests(self, rebaselined_tests):
"""Finds the corresponding changed baselines of each test.
Args:
rebaselined_tests: A list of test names that have been rebaselined.
Returns:
A dictionary mapping test names to paths of their baselines changed
in this import CL (paths relative to the root of Chromium repo).
"""
test_baselines = {}
changed_files = self.git.changed_files()
for test_name in rebaselined_tests:
test_without_ext, _ = self.host.filesystem.splitext(test_name)
changed_baselines = []
# TODO(robertma): Refactor this into layout_tests.port.base.
baseline_name = test_without_ext + '-expected.txt'
for changed_file in changed_files:
if changed_file.endswith(baseline_name):
changed_baselines.append(changed_file)
if changed_baselines:
test_baselines[test_name] = changed_baselines
return test_baselines
def examine_baseline_changes(self, changed_test_baselines,
gerrit_url_with_ps):
"""Examines all changed baselines to find new failures.
Args:
changed_test_baselines: A dictionary mapping test names to paths of
changed baselines.
gerrit_url_with_ps: Gerrit URL of this CL with the patchset number.
"""
for test_name, changed_baselines in changed_test_baselines.iteritems():
directory = self.find_owned_directory(test_name)
if not directory:
_log.warning('Cannot find OWNERS of %s', test_name)
continue
for baseline in changed_baselines:
if self.more_failures_in_baseline(baseline):
self.new_failures_by_directory[directory].append(
TestFailure(TestFailure.BASELINE_CHANGE,
test_name,
baseline_path=baseline,
gerrit_url_with_ps=gerrit_url_with_ps))
def more_failures_in_baseline(self, baseline):
diff = self.git.run(['diff', '-U0', 'origin/master', '--', baseline])
delta_failures = 0
for line in diff.splitlines():
if line.startswith('+FAIL'):
delta_failures += 1
if line.startswith('-FAIL'):
delta_failures -= 1
return delta_failures > 0
def examine_new_test_expectations(self, test_expectations):
"""Examines new test expectations to find new failures.
Args:
test_expectations: A dictionary mapping names of tests that cannot
be rebaselined to a list of new test expectation lines.
"""
for test_name, expectation_lines in test_expectations.iteritems():
directory = self.find_owned_directory(test_name)
if not directory:
_log.warning('Cannot find OWNERS of %s', test_name)
continue
for expectation_line in expectation_lines:
self.new_failures_by_directory[directory].append(
TestFailure(TestFailure.NEW_EXPECTATION,
test_name,
expectation_line=expectation_line))
def create_bugs_from_new_failures(self, wpt_revision_start,
wpt_revision_end, gerrit_url):
"""Files bug reports for new failures.
Args:
wpt_revision_start: The start of the imported WPT revision range
(exclusive), i.e. the last imported revision.
wpt_revision_end: The end of the imported WPT revision range
(inclusive), i.e. the current imported revision.
gerrit_url: Gerrit URL of the CL.
Return:
A list of MonorailIssue objects that should be filed.
"""
imported_commits = self.local_wpt.commits_in_range(
wpt_revision_start, wpt_revision_end)
bugs = []
for directory, failures in self.new_failures_by_directory.iteritems():
summary = '[WPT] New failures introduced in {} by import {}'.format(
directory, gerrit_url)
full_directory = self.host.filesystem.join(
self.finder.layout_tests_dir(), directory)
owners_file = self.host.filesystem.join(full_directory, 'OWNERS')
is_wpt_notify_enabled = self.owners_extractor.is_wpt_notify_enabled(
owners_file)
owners = self.owners_extractor.extract_owners(owners_file)
# owners may be empty but not None.
cc = owners + ['*****@*****.**']
component = self.owners_extractor.extract_component(owners_file)
# component could be None.
components = [component] if component else None
prologue = ('WPT import {} introduced new failures in {}:\n\n'
'List of new failures:\n'.format(
gerrit_url, directory))
failure_list = ''
for failure in failures:
failure_list += str(failure) + '\n'
epilogue = '\nThis import contains upstream changes from {} to {}:\n'.format(
wpt_revision_start, wpt_revision_end)
commit_list = self.format_commit_list(imported_commits,
full_directory)
description = prologue + failure_list + epilogue + commit_list
bug = MonorailIssue.new_chromium_issue(summary, description, cc,
components)
_log.info(unicode(bug))
if is_wpt_notify_enabled:
_log.info(
"WPT-NOTIFY enabled in this directory; adding the bug to the pending list."
)
bugs.append(bug)
else:
_log.info(
"WPT-NOTIFY disabled in this directory; discarding the bug."
)
return bugs
def format_commit_list(self, imported_commits, directory):
"""Formats the list of imported WPT commits.
Imports affecting the given directory will be highlighted.
Args:
imported_commits: A list of (SHA, commit subject) pairs.
directory: An absolute path of a directory in the Chromium repo, for
which the list is formatted.
Returns:
A multi-line string.
"""
path_from_wpt = self.host.filesystem.relpath(
directory, self.finder.path_from_layout_tests('external', 'wpt'))
commit_list = ''
for sha, subject in imported_commits:
# subject is a Unicode string and can contain non-ASCII characters.
line = u'{}: {}'.format(subject, GITHUB_COMMIT_PREFIX + sha)
if self.local_wpt.is_commit_affecting_directory(
sha, path_from_wpt):
line += ' [affecting this directory]'
commit_list += line + '\n'
return commit_list
def find_owned_directory(self, test_name):
"""Finds the lowest directory that contains the test and has OWNERS.
Args:
The name of the test (a path relative to LayoutTests).
Returns:
The path of the found directory relative to LayoutTests.
"""
# Always use non-virtual test names when looking up OWNERS.
if self.default_port.lookup_virtual_test_base(test_name):
test_name = self.default_port.lookup_virtual_test_base(test_name)
# find_owners_file takes either a relative path from the *root* of the
# repository, or an absolute path.
abs_test_path = self.finder.path_from_layout_tests(test_name)
owners_file = self.owners_extractor.find_owners_file(
self.host.filesystem.dirname(abs_test_path))
if not owners_file:
return None
owned_directory = self.host.filesystem.dirname(owners_file)
short_directory = self.host.filesystem.relpath(
owned_directory, self.finder.layout_tests_dir())
return short_directory
def file_bugs(self, bugs, dry_run, service_account_key_json=None):
"""Files a list of bugs to Monorail.
Args:
bugs: A list of MonorailIssue objects.
dry_run: A boolean, whether we are in dry run mode.
service_account_key_json: Optional, see docs for main().
"""
# TODO(robertma): Better error handling in this method.
if dry_run:
_log.info(
'[dry_run] Would have filed the %d bugs in the pending list.',
len(bugs))
return
_log.info('Filing %d bugs in the pending list to Monorail', len(bugs))
api = self._get_monorail_api(service_account_key_json)
for index, bug in enumerate(bugs, start=1):
response = api.insert_issue(bug)
_log.info('[%d] Filed bug: %s', index,
MonorailIssue.crbug_link(response['id']))
def _get_monorail_api(self, service_account_key_json):
if service_account_key_json:
return self._monorail_api(
service_account_key_json=service_account_key_json)
token = LuciAuth(self.host).get_access_token()
return self._monorail_api(access_token=token)
class TestImporter(object):
def __init__(self, host, wpt_github=None):
self.host = host
self.wpt_github = wpt_github
self.executive = host.executive
self.fs = host.filesystem
self.finder = PathFinder(self.fs)
self.chromium_git = self.host.git(self.finder.chromium_base())
self.dest_path = self.finder.path_from_layout_tests('external', 'wpt')
# A common.net.git_cl.GitCL instance.
self.git_cl = None
# Another Git instance with local WPT as CWD, which can only be
# instantiated after the working directory is created.
self.wpt_git = None
# The WPT revision we are importing and the one imported last time.
self.wpt_revision = None
self.last_wpt_revision = None
# A set of rebaselined tests and a dictionary of new test expectations
# mapping failing tests to platforms to
# wpt_expectations_updater.SimpleTestResult.
self.rebaselined_tests = set()
self.new_test_expectations = {}
self.verbose = False
def main(self, argv=None):
# TODO(robertma): Test this method! Split it to make it easier to test
# if necessary.
options = self.parse_args(argv)
self.verbose = options.verbose
log_level = logging.DEBUG if self.verbose else logging.INFO
configure_logging(logging_level=log_level, include_time=True)
if options.verbose:
# Print out the full output when executive.run_command fails.
self.host.executive.error_output_limit = None
if not self.checkout_is_okay():
return 1
credentials = read_credentials(self.host, options.credentials_json)
gh_user = credentials.get('GH_USER')
gh_token = credentials.get('GH_TOKEN')
if not gh_user or not gh_token:
_log.warning('You have not set your GitHub credentials. This '
'script may fail with a network error when making '
'an API request to GitHub.')
_log.warning('See https://chromium.googlesource.com/chromium/src'
'/+/master/docs/testing/web_platform_tests.md'
'#GitHub-credentials for instructions on how to set '
'your credentials up.')
self.wpt_github = self.wpt_github or WPTGitHub(self.host, gh_user,
gh_token)
self.git_cl = GitCL(
self.host, auth_refresh_token_json=options.auth_refresh_token_json)
_log.debug('Noting the current Chromium revision.')
chromium_revision = self.chromium_git.latest_git_commit()
# Instantiate Git after local_wpt.fetch() to make sure the path exists.
local_wpt = LocalWPT(self.host, gh_token=gh_token)
local_wpt.fetch()
self.wpt_git = self.host.git(local_wpt.path)
if options.revision is not None:
_log.info('Checking out %s', options.revision)
self.wpt_git.run(['checkout', options.revision])
_log.debug('Noting the revision we are importing.')
self.wpt_revision = self.wpt_git.latest_git_commit()
self.last_wpt_revision = self._get_last_imported_wpt_revision()
import_commit = 'wpt@%s' % self.wpt_revision
_log.info('Importing %s to Chromium %s', import_commit,
chromium_revision)
if options.ignore_exportable_commits:
commit_message = self._commit_message(chromium_revision,
import_commit)
else:
commits = self.apply_exportable_commits_locally(local_wpt)
if commits is None:
_log.error('Could not apply some exportable commits cleanly.')
_log.error('Aborting import to prevent clobbering commits.')
return 1
commit_message = self._commit_message(
chromium_revision,
import_commit,
locally_applied_commits=commits)
self._clear_out_dest_path()
_log.info('Copying the tests from the temp repo to the destination.')
test_copier = TestCopier(self.host, local_wpt.path)
test_copier.do_import()
# TODO(robertma): Implement `add --all` in Git (it is different from `commit --all`).
self.chromium_git.run(['add', '--all', self.dest_path])
self._generate_manifest()
# TODO(crbug.com/800570 robertma): Re-enable it once we fix the bug.
# self._delete_orphaned_baselines()
# TODO(qyearsley): Consider running the imported tests with
# `run_web_tests.py --reset-results external/wpt` to get some baselines
# before the try jobs are started.
_log.info(
'Updating TestExpectations for any removed or renamed tests.')
self.update_all_test_expectations_files(self._list_deleted_tests(),
self._list_renamed_tests())
if not self.chromium_git.has_working_directory_changes():
_log.info('Done: no changes to import.')
return 0
if self._only_wpt_manifest_changed():
_log.info('Only manifest was updated; skipping the import.')
return 0
self._commit_changes(commit_message)
_log.info('Changes imported and committed.')
if not options.auto_update:
return 0
self._upload_cl()
_log.info('Issue: %s', self.git_cl.run(['issue']).strip())
if not self.update_expectations_for_cl():
return 1
if not self.run_commit_queue_for_cl():
return 1
if not self.send_notifications(local_wpt, options.auto_file_bugs,
options.monorail_auth_json):
return 1
return 0
def update_expectations_for_cl(self):
"""Performs the expectation-updating part of an auto-import job.
This includes triggering try jobs and waiting; then, if applicable,
writing new baselines and TestExpectation lines, committing, and
uploading a new patchset.
This assumes that there is CL associated with the current branch.
Returns True if everything is OK to continue, or False on failure.
"""
_log.info('Triggering try jobs for updating expectations.')
self.git_cl.trigger_try_jobs(self.blink_try_bots())
cl_status = self.git_cl.wait_for_try_jobs(
poll_delay_seconds=POLL_DELAY_SECONDS,
timeout_seconds=TIMEOUT_SECONDS)
if not cl_status:
_log.error('No initial try job results, aborting.')
self.git_cl.run(['set-close'])
return False
if cl_status.status == 'closed':
_log.error('The CL was closed, aborting.')
return False
_log.info('All jobs finished.')
try_results = cl_status.try_job_results
if try_results and self.git_cl.some_failed(try_results):
self.fetch_new_expectations_and_baselines()
if self.chromium_git.has_working_directory_changes():
self._generate_manifest()
message = 'Update test expectations and baselines.'
self._commit_changes(message)
self._upload_patchset(message)
return True
def run_commit_queue_for_cl(self):
"""Triggers CQ and either commits or aborts; returns True on success."""
_log.info('Triggering CQ try jobs.')
self.git_cl.run(['try'])
cl_status = self.git_cl.wait_for_try_jobs(
poll_delay_seconds=POLL_DELAY_SECONDS,
timeout_seconds=TIMEOUT_SECONDS,
cq_only=True)
if not cl_status:
self.git_cl.run(['set-close'])
_log.error('Timed out waiting for CQ; aborting.')
return False
if cl_status.status == 'closed':
_log.error('The CL was closed; aborting.')
return False
_log.info('All jobs finished.')
cq_try_results = cl_status.try_job_results
if not cq_try_results:
_log.error('No CQ try results found in try results')
self.git_cl.run(['set-close'])
return False
if not self.git_cl.all_success(cq_try_results):
_log.error('CQ appears to have failed; aborting.')
self.git_cl.run(['set-close'])
return False
_log.info('CQ appears to have passed; trying to commit.')
self.git_cl.run(['upload', '-f', '--send-mail']) # Turn off WIP mode.
self.git_cl.run(['set-commit'])
if self.git_cl.wait_for_closed_status():
_log.info('Update completed.')
return True
_log.error('Cannot submit CL; aborting.')
self.git_cl.run(['set-close'])
return False
def blink_try_bots(self):
"""Returns the collection of builders used for updating expectations."""
return self.host.builders.all_try_builder_names()
def parse_args(self, argv):
parser = argparse.ArgumentParser()
parser.description = __doc__
parser.add_argument(
'-v',
'--verbose',
action='store_true',
help='log extra details that may be helpful when debugging')
parser.add_argument(
'--ignore-exportable-commits',
action='store_true',
help='do not check for exportable commits that would be clobbered')
parser.add_argument('-r', '--revision', help='target wpt revision')
parser.add_argument(
'--auto-update',
action='store_true',
help='upload a CL, update expectations, and trigger CQ')
parser.add_argument(
'--auto-file-bugs',
action='store_true',
help='file new failures automatically to crbug.com')
parser.add_argument(
'--auth-refresh-token-json',
help='authentication refresh token JSON file used for try jobs, '
'generally not necessary on developer machines')
parser.add_argument('--credentials-json',
help='A JSON file with GitHub credentials, '
'generally not necessary on developer machines')
parser.add_argument(
'--monorail-auth-json',
help='A JSON file containing the private key of a service account '
'to access Monorail (crbug.com), only needed when '
'--auto-file-bugs is used')
return parser.parse_args(argv)
def checkout_is_okay(self):
if self.chromium_git.has_working_directory_changes():
_log.warning('Checkout is dirty; aborting.')
return False
# TODO(robertma): Add a method in Git to query a range of commits.
local_commits = self.chromium_git.run(
['log', '--oneline', 'origin/master..HEAD'])
if local_commits:
_log.warning('Checkout has local commits before import.')
return True
def apply_exportable_commits_locally(self, local_wpt):
"""Applies exportable Chromium changes to the local WPT repo.
The purpose of this is to avoid clobbering changes that were made in
Chromium but not yet merged upstream. By applying these changes to the
local copy of web-platform-tests before copying files over, we make
it so that the resulting change in Chromium doesn't undo the
previous Chromium change.
Args:
A LocalWPT instance for our local copy of WPT.
Returns:
A list of commits applied (could be empty), or None if any
of the patches could not be applied cleanly.
"""
commits = self.exportable_but_not_exported_commits(local_wpt)
for commit in commits:
_log.info('Applying exportable commit locally:')
_log.info(commit.url())
_log.info('Subject: %s', commit.subject().strip())
# TODO(qyearsley): We probably don't need to know about
# corresponding PRs at all anymore, although this information
# could still be useful for reference.
pull_request = self.wpt_github.pr_for_chromium_commit(commit)
if pull_request:
_log.info('PR: %spull/%d', WPT_GH_URL, pull_request.number)
else:
_log.warning('No pull request found.')
error = local_wpt.apply_patch(commit.format_patch())
if error:
_log.error('Commit cannot be applied cleanly:')
_log.error(error)
return None
self.wpt_git.commit_locally_with_message('Applying patch %s' %
commit.sha)
return commits
def exportable_but_not_exported_commits(self, local_wpt):
"""Returns a list of commits that would be clobbered by importer.
The list contains all exportable but not exported commits, not filtered
by whether they can apply cleanly.
"""
# The errors returned by exportable_commits_over_last_n_commits are
# irrelevant and ignored here, because it tests patches *individually*
# while the importer tries to reapply these patches *cumulatively*.
commits, _ = exportable_commits_over_last_n_commits(
self.host,
local_wpt,
self.wpt_github,
require_clean=False,
verify_merged_pr=True)
return commits
def _generate_manifest(self):
"""Generates MANIFEST.json for imported tests.
Runs the (newly-updated) manifest command if it's found, and then
stages the generated MANIFEST.json in the git index, ready to commit.
"""
_log.info('Generating MANIFEST.json')
WPTManifest.generate_manifest(self.host, self.dest_path)
manifest_path = self.fs.join(self.dest_path, 'MANIFEST.json')
assert self.fs.exists(manifest_path)
manifest_base_path = self.fs.normpath(
self.fs.join(self.dest_path, '..', BASE_MANIFEST_NAME))
self.copyfile(manifest_path, manifest_base_path)
self.chromium_git.add_list([manifest_base_path])
def _clear_out_dest_path(self):
"""Removes all files that are synced with upstream from Chromium WPT.
Instead of relying on TestCopier to overwrite these files, cleaning up
first ensures if upstream deletes some files, we also delete them.
"""
_log.info('Cleaning out tests from %s.', self.dest_path)
should_remove = lambda fs, dirname, basename: (is_file_exportable(
fs.relpath(fs.join(dirname, basename), self.finder.chromium_base())
))
files_to_delete = self.fs.files_under(self.dest_path,
file_filter=should_remove)
for subpath in files_to_delete:
self.remove(self.finder.path_from_layout_tests(
'external', subpath))
def _commit_changes(self, commit_message):
_log.info('Committing changes.')
self.chromium_git.commit_locally_with_message(commit_message)
def _only_wpt_manifest_changed(self):
changed_files = self.chromium_git.changed_files()
wpt_base_manifest = self.fs.relpath(
self.fs.join(self.dest_path, '..', BASE_MANIFEST_NAME),
self.finder.chromium_base())
return changed_files == [wpt_base_manifest]
def _commit_message(self,
chromium_commit_sha,
import_commit_sha,
locally_applied_commits=None):
message = 'Import {}\n\nUsing wpt-import in Chromium {}.\n'.format(
import_commit_sha, chromium_commit_sha)
if locally_applied_commits:
message += 'With Chromium commits locally applied on WPT:\n'
message += '\n'.join(
str(commit) for commit in locally_applied_commits)
message += '\nNo-Export: true'
return message
def _delete_orphaned_baselines(self):
_log.info('Deleting any orphaned baselines.')
is_baseline_filter = lambda fs, dirname, basename: is_testharness_baseline(
basename)
baselines = self.fs.files_under(self.dest_path,
file_filter=is_baseline_filter)
# TODO(qyearsley): Factor out the manifest path to a common location.
# TODO(qyearsley): Factor out the manifest reading from here and Port
# to WPTManifest.
manifest_path = self.finder.path_from_layout_tests(
'external', 'wpt', 'MANIFEST.json')
manifest = WPTManifest(self.fs.read_text_file(manifest_path))
wpt_urls = manifest.all_urls()
# Currently baselines for tests with query strings are merged,
# so that the tests foo.html?r=1 and foo.html?r=2 both have the same
# baseline, foo-expected.txt.
# TODO(qyearsley): Remove this when this behavior is fixed.
wpt_urls = [url.split('?')[0] for url in wpt_urls]
wpt_dir = self.finder.path_from_layout_tests('external', 'wpt')
for full_path in baselines:
rel_path = self.fs.relpath(full_path, wpt_dir)
if not self._has_corresponding_test(rel_path, wpt_urls):
self.fs.remove(full_path)
def _has_corresponding_test(self, rel_path, wpt_urls):
# TODO(qyearsley): Ensure that this works with platform baselines and
# virtual baselines, and add unit tests.
base = '/' + rel_path.replace('-expected.txt', '')
return any(
(base + ext) in wpt_urls for ext in Port.supported_file_extensions)
def copyfile(self, source, destination):
_log.debug('cp %s %s', source, destination)
self.fs.copyfile(source, destination)
def remove(self, dest):
_log.debug('rm %s', dest)
self.fs.remove(dest)
def _upload_patchset(self, message):
self.git_cl.run(['upload', '-f', '-t', message, '--gerrit'])
def _upload_cl(self):
_log.info('Uploading change list.')
directory_owners = self.get_directory_owners()
description = self._cl_description(directory_owners)
sheriff_email = self.tbr_reviewer()
temp_file, temp_path = self.fs.open_text_tempfile()
temp_file.write(description)
temp_file.close()
self.git_cl.run([
'upload',
'-f',
'--gerrit',
'--message-file',
temp_path,
'--tbrs',
sheriff_email,
# Note: we used to CC all the directory owners, but have stopped
# in search of a better notification mechanism. (crbug.com/765334)
'--cc',
'*****@*****.**',
])
self.fs.remove(temp_path)
def get_directory_owners(self):
"""Returns a mapping of email addresses to owners of changed tests."""
_log.info('Gathering directory owners emails to CC.')
changed_files = self.chromium_git.changed_files()
extractor = DirectoryOwnersExtractor(self.fs)
return extractor.list_owners(changed_files)
def _cl_description(self, directory_owners):
"""Returns a CL description string.
Args:
directory_owners: A dict of tuples of owner names to lists of directories.
"""
# TODO(robertma): Add a method in Git for getting the commit body.
description = self.chromium_git.run(['log', '-1', '--format=%B'])
build_link = current_build_link(self.host)
if build_link:
description += 'Build: %s\n\n' % build_link
description += (
'Note to sheriffs: This CL imports external tests and adds\n'
'expectations for those tests; if this CL is large and causes\n'
'a few new failures, please fix the failures by adding new\n'
'lines to TestExpectations rather than reverting. See:\n'
'https://chromium.googlesource.com'
'/chromium/src/+/master/docs/testing/web_platform_tests.md\n\n')
if directory_owners:
description += self._format_directory_owners(
directory_owners) + '\n\n'
# Prevent FindIt from auto-reverting import CLs.
description += 'NOAUTOREVERT=true\n'
# Move any No-Export tag to the end of the description.
description = description.replace('No-Export: true', '')
description = description.replace('\n\n\n\n', '\n\n')
description += 'No-Export: true'
return description
@staticmethod
def _format_directory_owners(directory_owners):
message_lines = ['Directory owners for changes in this CL:']
for owner_tuple, directories in sorted(directory_owners.items()):
message_lines.append(', '.join(owner_tuple) + ':')
message_lines.extend(' ' + d for d in directories)
return '\n'.join(message_lines)
def tbr_reviewer(self):
"""Returns the user name or email address to use as the reviewer.
This tries to fetch the current ecosystem infra sheriff, but falls back
in case of error.
Either a user name (which is assumed to have a chromium.org email
address) or a full email address (for other cases) is returned.
"""
username = ''
try:
username = self._fetch_ecosystem_infra_sheriff_username()
except (IOError, KeyError, ValueError) as error:
_log.error('Exception while fetching current sheriff: %s', error)
return username or TBR_FALLBACK
def _fetch_ecosystem_infra_sheriff_username(self):
try:
content = self.host.web.get_binary(ROTATIONS_URL)
except NetworkTimeout:
_log.error('Cannot fetch %s', ROTATIONS_URL)
return ''
data = json.loads(content)
today = datetime.date.fromtimestamp(self.host.time()).isoformat()
index = data['rotations'].index('ecosystem_infra')
calendar = data['calendar']
for entry in calendar:
if entry['date'] == today:
if not entry['participants'][index]:
_log.info('No sheriff today.')
return ''
return entry['participants'][index][0]
_log.error('No entry found for date %s in rotations table.', today)
return ''
def fetch_new_expectations_and_baselines(self):
"""Modifies expectation lines and baselines based on try job results.
Assuming that there are some try job results available, this
adds new expectation lines to TestExpectations and downloads new
baselines based on the try job results.
This is the same as invoking the `wpt-update-expectations` script.
"""
_log.info('Adding test expectations lines to TestExpectations.')
expectation_updater = WPTExpectationsUpdater(self.host)
self.rebaselined_tests, self.new_test_expectations = expectation_updater.update_expectations(
)
def update_all_test_expectations_files(self, deleted_tests, renamed_tests):
"""Updates all test expectations files for tests that have been deleted or renamed.
This is only for deleted or renamed tests in the initial import,
not for tests that have failures in try jobs.
"""
port = self.host.port_factory.get()
for path, file_contents in port.all_expectations_dict().iteritems():
parser = TestExpectationParser(port,
all_tests=None,
is_lint_mode=False)
expectation_lines = parser.parse(path, file_contents)
self._update_single_test_expectations_file(path, expectation_lines,
deleted_tests,
renamed_tests)
def _update_single_test_expectations_file(self, path, expectation_lines,
deleted_tests, renamed_tests):
"""Updates a single test expectations file."""
# FIXME: This won't work for removed or renamed directories with test
# expectations that are directories rather than individual tests.
new_lines = []
changed_lines = []
for expectation_line in expectation_lines:
if expectation_line.name in deleted_tests:
continue
if expectation_line.name in renamed_tests:
expectation_line.name = renamed_tests[expectation_line.name]
# Upon parsing the file, a "path does not exist" warning is expected
# to be there for tests that have been renamed, and if there are warnings,
# then the original string is used. If the warnings are reset, then the
# expectation line is re-serialized when output.
expectation_line.warnings = []
changed_lines.append(expectation_line)
new_lines.append(expectation_line)
new_file_contents = TestExpectations.list_to_string(
new_lines, reconstitute_only_these=changed_lines)
self.host.filesystem.write_text_file(path, new_file_contents)
def _list_deleted_tests(self):
"""List of layout tests that have been deleted."""
# TODO(robertma): Improve Git.changed_files so that we can use it here.
out = self.chromium_git.run([
'diff', 'origin/master', '-M100%', '--diff-filter=D', '--name-only'
])
deleted_tests = []
for path in out.splitlines():
test = self._relative_to_layout_test_dir(path)
if test:
deleted_tests.append(test)
return deleted_tests
def _list_renamed_tests(self):
"""Lists tests that have been renamed.
Returns a dict mapping source name to destination name.
"""
out = self.chromium_git.run([
'diff', 'origin/master', '-M100%', '--diff-filter=R',
'--name-status'
])
renamed_tests = {}
for line in out.splitlines():
_, source_path, dest_path = line.split()
source_test = self._relative_to_layout_test_dir(source_path)
dest_test = self._relative_to_layout_test_dir(dest_path)
if source_test and dest_test:
renamed_tests[source_test] = dest_test
return renamed_tests
def _relative_to_layout_test_dir(self, path_relative_to_repo_root):
"""Returns a path that's relative to the layout tests directory."""
abs_path = self.finder.path_from_chromium_base(
path_relative_to_repo_root)
if not abs_path.startswith(self.finder.layout_tests_dir()):
return None
return self.fs.relpath(abs_path, self.finder.layout_tests_dir())
def _get_last_imported_wpt_revision(self):
"""Finds the last imported WPT revision."""
# TODO(robertma): Only match commit subjects.
output = self.chromium_git.most_recent_log_matching(
'^Import wpt@', self.finder.chromium_base())
# No line-start anchor (^) below because of the formatting of output.
result = re.search(r'Import wpt@(\w+)', output)
if result:
return result.group(1)
else:
_log.error('Cannot find last WPT import.')
return None
def send_notifications(self, local_wpt, auto_file_bugs,
monorail_auth_json):
issue = self.git_cl.run(['status', '--field=id']).strip()
patchset = self.git_cl.run(['status', '--field=patch']).strip()
# Construct the notifier here so that any errors won't affect the import.
notifier = ImportNotifier(self.host, self.chromium_git, local_wpt)
notifier.main(self.last_wpt_revision,
self.wpt_revision,
self.rebaselined_tests,
self.new_test_expectations,
issue,
patchset,
dry_run=not auto_file_bugs,
service_account_key_json=monorail_auth_json)
return True
class DirectoryOwnersExtractor(object):
def __init__(self, filesystem=None):
self.filesystem = filesystem or FileSystem()
self.finder = PathFinder(filesystem)
self.owner_map = None
def list_owners(self, changed_files):
"""Looks up the owners for the given set of changed files.
Args:
changed_files: A list of file paths relative to the repository root.
Returns:
A dict mapping tuples of owner email addresses to lists of
owned directories (paths relative to the root of layout tests).
"""
email_map = collections.defaultdict(set)
external_root_owners = self.finder.path_from_layout_tests(
'external', 'OWNERS')
for relpath in changed_files:
# Try to find the first *non-empty* OWNERS file.
absolute_path = self.finder.path_from_chromium_base(relpath)
owners = None
owners_file = self.find_owners_file(absolute_path)
while owners_file:
owners = self.extract_owners(owners_file)
if owners:
break
# Found an empty OWNERS file. Try again from the parent directory.
absolute_path = self.filesystem.dirname(
self.filesystem.dirname(owners_file))
owners_file = self.find_owners_file(absolute_path)
# Skip LayoutTests/external/OWNERS.
if not owners or owners_file == external_root_owners:
continue
owned_directory = self.filesystem.dirname(owners_file)
owned_directory_relpath = self.filesystem.relpath(
owned_directory, self.finder.layout_tests_dir())
email_map[tuple(owners)].add(owned_directory_relpath)
return {
owners: sorted(owned_directories)
for owners, owned_directories in email_map.iteritems()
}
def find_owners_file(self, start_path):
"""Finds the first enclosing OWNERS file for a given path.
Starting from the given path, walks up the directory tree until the
first OWNERS file is found or LayoutTests/external is reached.
Args:
start_path: A relative path from the root of the repository, or an
absolute path. The path can be a file or a directory.
Returns:
The absolute path to the first OWNERS file found; None if not found
or if start_path is outside of LayoutTests/external.
"""
abs_start_path = (start_path if self.filesystem.isabs(start_path) else
self.finder.path_from_chromium_base(start_path))
directory = (abs_start_path if self.filesystem.isdir(abs_start_path)
else self.filesystem.dirname(abs_start_path))
external_root = self.finder.path_from_layout_tests('external')
if not directory.startswith(external_root):
return None
# Stop at LayoutTests, which is the parent of external_root.
while directory != self.finder.layout_tests_dir():
owners_file = self.filesystem.join(directory, 'OWNERS')
if self.filesystem.isfile(
self.finder.path_from_chromium_base(owners_file)):
return owners_file
directory = self.filesystem.dirname(directory)
return None
def extract_owners(self, owners_file):
"""Extracts owners from an OWNERS file.
Args:
owners_file: An absolute path to an OWNERS file.
Returns:
A list of valid owners (email addresses).
"""
contents = self._read_text_file(owners_file)
email_regexp = re.compile(BASIC_EMAIL_REGEXP)
addresses = []
for line in contents.splitlines():
line = line.strip()
if email_regexp.match(line):
addresses.append(line)
return addresses
def extract_component(self, owners_file):
"""Extracts the component from an OWNERS file.
Args:
owners_file: An absolute path to an OWNERS file.
Returns:
A string, or None if not found.
"""
contents = self._read_text_file(owners_file)
search = re.search(COMPONENT_REGEXP, contents, re.MULTILINE)
if search:
return search.group(1)
return None
def is_wpt_notify_enabled(self, owners_file):
"""Checks if the OWNERS file enables WPT-NOTIFY.
Args:
owners_file: An absolute path to an OWNERS file.
Returns:
A boolean.
"""
contents = self._read_text_file(owners_file)
return bool(re.search(WPT_NOTIFY_REGEXP, contents, re.MULTILINE))
@memoized
def _read_text_file(self, path):
return self.filesystem.read_text_file(path)
def test_layout_tests_dir(self):
finder = PathFinder(MockFileSystem())
self.assertEqual(finder.layout_tests_dir(),
'/mock-checkout/third_party/WebKit/LayoutTests')
class TestCopier(object):
def __init__(self, host, source_repo_path):
"""Initializes variables to prepare for copying and converting files.
Args:
host: An instance of Host.
source_repo_path: Path to the local checkout of web-platform-tests.
"""
self.host = host
assert self.host.filesystem.exists(source_repo_path)
self.source_repo_path = source_repo_path
self.filesystem = self.host.filesystem
self.path_finder = PathFinder(self.filesystem)
self.layout_tests_dir = self.path_finder.layout_tests_dir()
self.destination_directory = self.filesystem.normpath(
self.filesystem.join(
self.layout_tests_dir, DEST_DIR_NAME,
self.filesystem.basename(self.source_repo_path)))
self.import_in_place = (
self.source_repo_path == self.destination_directory)
self.dir_above_repo = self.filesystem.dirname(self.source_repo_path)
self.import_list = []
# This is just a FYI list of CSS properties that still need to be prefixed,
# which may be output after importing.
self._prefixed_properties = {}
def do_import(self):
_log.info('Importing %s into %s', self.source_repo_path,
self.destination_directory)
self.find_importable_tests()
self.import_tests()
def find_importable_tests(self):
"""Walks through the source directory to find what tests should be imported.
This function sets self.import_list, which contains information about how many
tests are being imported, and their source and destination paths.
"""
paths_to_skip = self.find_paths_to_skip()
for root, dirs, files in self.filesystem.walk(self.source_repo_path):
cur_dir = root.replace(self.dir_above_repo + '/', '') + '/'
_log.debug('Scanning %s...', cur_dir)
dirs_to_skip = ('.git', )
if dirs:
for name in dirs_to_skip:
if name in dirs:
dirs.remove(name)
for path in paths_to_skip:
path_base = path.replace(DEST_DIR_NAME + '/', '')
path_base = path_base.replace(cur_dir, '')
path_full = self.filesystem.join(root, path_base)
if path_base in dirs:
_log.info('Skipping: %s', path_full)
dirs.remove(path_base)
if self.import_in_place:
self.filesystem.rmtree(path_full)
copy_list = []
for filename in files:
path_full = self.filesystem.join(root, filename)
path_base = path_full.replace(self.source_repo_path + '/', '')
path_base = self.destination_directory.replace(
self.layout_tests_dir + '/', '') + '/' + path_base
if path_base in paths_to_skip:
if self.import_in_place:
_log.debug('Pruning: %s', path_base)
self.filesystem.remove(path_full)
continue
else:
continue
# FIXME: This block should really be a separate function, but the early-continues make that difficult.
if is_basename_skipped(filename):
_log.debug('Skipping: %s', path_full)
_log.debug(
' Reason: This file may cause Chromium presubmit to fail.'
)
continue
copy_list.append({'src': path_full, 'dest': filename})
if copy_list:
# Only add this directory to the list if there's something to import
self.import_list.append({
'dirname': root,
'copy_list': copy_list
})
def find_paths_to_skip(self):
paths_to_skip = set()
port = self.host.port_factory.get()
w3c_import_expectations_path = self.path_finder.path_from_layout_tests(
'W3CImportExpectations')
w3c_import_expectations = self.filesystem.read_text_file(
w3c_import_expectations_path)
parser = TestExpectationParser(port, all_tests=(), is_lint_mode=False)
expectation_lines = parser.parse(w3c_import_expectations_path,
w3c_import_expectations)
for line in expectation_lines:
if 'SKIP' in line.expectations:
if line.specifiers:
_log.warning(
'W3CImportExpectations:%s should not have any specifiers',
line.line_numbers)
continue
paths_to_skip.add(line.name)
return paths_to_skip
def import_tests(self):
"""Reads |self.import_list|, and converts and copies files to their destination."""
for dir_to_copy in self.import_list:
if not dir_to_copy['copy_list']:
continue
orig_path = dir_to_copy['dirname']
relative_dir = self.filesystem.relpath(orig_path,
self.source_repo_path)
dest_dir = self.filesystem.join(self.destination_directory,
relative_dir)
if not self.filesystem.exists(dest_dir):
self.filesystem.maybe_make_directory(dest_dir)
for file_to_copy in dir_to_copy['copy_list']:
self.copy_file(file_to_copy, dest_dir)
_log.info('')
_log.info('Import complete')
_log.info('')
if self._prefixed_properties:
_log.info('Properties needing prefixes (by count):')
for prefixed_property in sorted(
self._prefixed_properties,
key=lambda p: self._prefixed_properties[p]):
_log.info(' %s: %s', prefixed_property,
self._prefixed_properties[prefixed_property])
def copy_file(self, file_to_copy, dest_dir):
"""Converts and copies a file, if it should be copied.
Args:
file_to_copy: A dict in a file copy list constructed by
find_importable_tests, which represents one file to copy, including
the keys:
"src": Absolute path to the source location of the file.
"destination": File name of the destination file.
And possibly also the keys "reference_support_info" or "is_jstest".
dest_dir: Path to the directory where the file should be copied.
"""
source_path = self.filesystem.normpath(file_to_copy['src'])
dest_path = self.filesystem.join(dest_dir, file_to_copy['dest'])
if self.filesystem.isdir(source_path):
_log.error('%s refers to a directory', source_path)
return
if not self.filesystem.exists(source_path):
_log.error('%s not found. Possible error in the test.',
source_path)
return
if not self.filesystem.exists(self.filesystem.dirname(dest_path)):
if not self.import_in_place:
self.filesystem.maybe_make_directory(
self.filesystem.dirname(dest_path))
relpath = self.filesystem.relpath(dest_path, self.layout_tests_dir)
# FIXME: Maybe doing a file diff is in order here for existing files?
# In other words, there's no sense in overwriting identical files, but
# there's no harm in copying the identical thing.
_log.debug(' copying %s', relpath)
if not self.import_in_place:
self.filesystem.copyfile(source_path, dest_path)
if self.filesystem.read_binary_file(source_path)[:2] == '#!':
self.filesystem.make_executable(dest_path)