1 # Copyright (c) 2013 The Chromium Authors. All rights reserved.
2 # Use of this source code is governed by a BSD-style license that can be
3 # found in the LICENSE file.
6 """Top-level presubmit script for Skia.
8 See http://dev.chromium.org/developers/how-tos/depottools/presubmit-scripts
9 for more details about the presubmit API built into gcl.
22 REVERT_CL_SUBJECT_PREFIX = 'Revert '
24 SKIA_TREE_STATUS_URL = 'http://skia-tree-status.appspot.com'
26 # Please add the complete email address here (and not just 'xyz@' or 'xyz').
30 'bsalomon@chromium.org',
31 'bsalomon@google.com',
32 'djsollen@chromium.org',
33 'djsollen@google.com',
36 AUTHORS_FILE_NAME = 'AUTHORS'
38 DOCS_PREVIEW_URL = 'https://skia.org/?cl='
39 GOLD_TRYBOT_URL = 'https://gold.skia.org/search?issue='
41 # Path to CQ bots feature is described in https://bug.skia.org/4364
42 PATH_PREFIX_TO_EXTRA_TRYBOTS = {
43 # pylint: disable=line-too-long
44 'src/opts/': 'master.client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot',
46 'include/private/SkAtomics.h': ('master.client.skia:'
47 'Test-Ubuntu-Clang-GCE-CPU-AVX2-x86_64-Release-TSAN-Trybot,'
48 'Test-Ubuntu-Clang-Golo-GPU-GT610-x86_64-Release-TSAN-Trybot'
51 # Below are examples to show what is possible with this feature.
52 # 'src/svg/': 'master1:abc;master2:def',
53 # 'src/svg/parser/': 'master3:ghi,jkl;master4:mno',
54 # 'src/image/SkImage_Base.h': 'master5:pqr,stu;master1:abc1;master2:def',
58 def _CheckChangeHasEol(input_api, output_api, source_file_filter=None):
59 """Checks that files end with atleast one \n (LF)."""
61 for f in input_api.AffectedSourceFiles(source_file_filter):
62 contents = input_api.ReadFile(f, 'rb')
63 # Check that the file ends in atleast one newline character.
64 if len(contents) > 1 and contents[-1:] != '\n':
65 eof_files.append(f.LocalPath())
68 return [output_api.PresubmitPromptWarning(
69 'These files should end in a newline character:',
74 def _PythonChecks(input_api, output_api):
75 """Run checks on any modified Python files."""
76 pylint_disabled_warnings = (
77 'F0401', # Unable to import.
78 'E0611', # No name in module.
79 'W0232', # Class has no __init__ method.
80 'E1002', # Use of super on an old style class.
81 'W0403', # Relative import used.
82 'R0201', # Method could be a function.
83 'E1003', # Using class name in super.
84 'W0613', # Unused argument.
85 'W0105', # String statement has no effect.
87 # Run Pylint on only the modified python files. Unfortunately it still runs
88 # Pylint on the whole file instead of just the modified lines.
89 affected_python_files = []
90 for affected_file in input_api.AffectedSourceFiles(None):
91 affected_file_path = affected_file.LocalPath()
92 if affected_file_path.endswith('.py'):
93 affected_python_files.append(affected_file_path)
94 return input_api.canned_checks.RunPylint(
95 input_api, output_api,
96 disabled_warnings=pylint_disabled_warnings,
97 white_list=affected_python_files)
100 def _IfDefChecks(input_api, output_api):
101 """Ensures if/ifdef are not before includes. See skbug/3362 for details."""
102 comment_block_start_pattern = re.compile('^\s*\/\*.*$')
103 comment_block_middle_pattern = re.compile('^\s+\*.*')
104 comment_block_end_pattern = re.compile('^\s+\*\/.*$')
105 single_line_comment_pattern = re.compile('^\s*//.*$')
106 def is_comment(line):
107 return (comment_block_start_pattern.match(line) or
108 comment_block_middle_pattern.match(line) or
109 comment_block_end_pattern.match(line) or
110 single_line_comment_pattern.match(line))
112 empty_line_pattern = re.compile('^\s*$')
113 def is_empty_line(line):
114 return empty_line_pattern.match(line)
117 for affected_file in input_api.AffectedSourceFiles(None):
118 affected_file_path = affected_file.LocalPath()
119 if affected_file_path.endswith('.cpp') or affected_file_path.endswith('.h'):
120 f = open(affected_file_path)
121 for line in f.xreadlines():
122 if is_comment(line) or is_empty_line(line):
124 # The below will be the first real line after comments and newlines.
125 if line.startswith('#if 0 '):
127 elif line.startswith('#if ') or line.startswith('#ifdef '):
128 failing_files.append(affected_file_path)
134 output_api.PresubmitError(
135 'The following files have #if or #ifdef before includes:\n%s\n\n'
136 'See https://bug.skia.org/3362 for why this should be fixed.' %
137 '\n'.join(failing_files)))
141 def _CopyrightChecks(input_api, output_api, source_file_filter=None):
143 year_pattern = r'\d{4}'
144 year_range_pattern = r'%s(-%s)?' % (year_pattern, year_pattern)
145 years_pattern = r'%s(,%s)*,?' % (year_range_pattern, year_range_pattern)
146 copyright_pattern = (
147 r'Copyright (\([cC]\) )?%s \w+' % years_pattern)
149 for affected_file in input_api.AffectedSourceFiles(source_file_filter):
150 if 'third_party' in affected_file.LocalPath():
152 contents = input_api.ReadFile(affected_file, 'rb')
153 if not re.search(copyright_pattern, contents):
154 results.append(output_api.PresubmitError(
155 '%s is missing a correct copyright header.' % affected_file))
159 def _ToolFlags(input_api, output_api):
160 """Make sure `{dm,nanobench}_flags.py test` passes if modified."""
162 sources = lambda x: ('dm_flags.py' in x.LocalPath() or
163 'nanobench_flags.py' in x.LocalPath())
164 for f in input_api.AffectedSourceFiles(sources):
165 if 0 != subprocess.call(['python', f.LocalPath(), 'test']):
166 results.append(output_api.PresubmitError('`python %s test` failed' % f))
170 def _RecipeSimulationTest(input_api, output_api):
171 """Run the recipe simulation test."""
173 if not any(f.LocalPath().startswith('infra')
174 for f in input_api.AffectedFiles()):
177 recipes_py = os.path.join('infra', 'bots', 'recipes.py')
178 cmd = ['python', recipes_py, 'simulation_test']
180 subprocess.check_output(cmd)
181 except subprocess.CalledProcessError as e:
182 results.append(output_api.PresubmitError(
183 '`%s` failed:\n%s' % (' '.join(cmd), e.output)))
187 def _GenTasksTest(input_api, output_api):
188 """Run gen_tasks.go test."""
190 if not any(f.LocalPath().startswith('infra')
191 for f in input_api.AffectedFiles()):
194 gen_tasks = os.path.join('infra', 'bots', 'gen_tasks.go')
195 cmd = ['go', 'run', gen_tasks, '--test']
197 subprocess.check_output(cmd)
198 except subprocess.CalledProcessError as e:
199 results.append(output_api.PresubmitError(
200 '`%s` failed:\n%s' % (' '.join(cmd), e.output)))
204 def _CheckGNFormatted(input_api, output_api):
205 """Make sure any .gn files we're changing have been formatted."""
207 for f in input_api.AffectedFiles():
208 if not f.LocalPath().endswith('.gn'):
211 cmd = ['gn', 'format', '--dry-run', f.LocalPath()]
213 subprocess.check_output(cmd)
214 except subprocess.CalledProcessError:
215 fix = 'gn format ' + f.LocalPath()
216 results.append(output_api.PresubmitError(
217 '`%s` failed, try\n\t%s' % (' '.join(cmd), fix)))
221 def _CommonChecks(input_api, output_api):
222 """Presubmit checks common to upload and commit."""
224 sources = lambda x: (x.LocalPath().endswith('.h') or
225 x.LocalPath().endswith('.gypi') or
226 x.LocalPath().endswith('.gyp') or
227 x.LocalPath().endswith('.py') or
228 x.LocalPath().endswith('.sh') or
229 x.LocalPath().endswith('.m') or
230 x.LocalPath().endswith('.mm') or
231 x.LocalPath().endswith('.go') or
232 x.LocalPath().endswith('.c') or
233 x.LocalPath().endswith('.cc') or
234 x.LocalPath().endswith('.cpp'))
237 input_api, output_api, source_file_filter=sources))
238 results.extend(_PythonChecks(input_api, output_api))
239 results.extend(_IfDefChecks(input_api, output_api))
240 results.extend(_CopyrightChecks(input_api, output_api,
241 source_file_filter=sources))
242 results.extend(_ToolFlags(input_api, output_api))
246 def CheckChangeOnUpload(input_api, output_api):
247 """Presubmit checks for the change on upload.
249 The following are the presubmit checks:
250 * Check change has one and only one EOL.
253 results.extend(_CommonChecks(input_api, output_api))
254 # Run on upload, not commit, since the presubmit bot apparently doesn't have
255 # coverage or Go installed.
256 results.extend(_RecipeSimulationTest(input_api, output_api))
257 results.extend(_GenTasksTest(input_api, output_api))
259 results.extend(_CheckGNFormatted(input_api, output_api))
263 def _CheckTreeStatus(input_api, output_api, json_url):
264 """Check whether to allow commit.
267 input_api: input related apis.
268 output_api: output related apis.
269 json_url: url to download json style status.
271 tree_status_results = input_api.canned_checks.CheckTreeIsOpen(
272 input_api, output_api, json_url=json_url)
273 if not tree_status_results:
274 # Check for caution state only if tree is not closed.
275 connection = input_api.urllib2.urlopen(json_url)
276 status = input_api.json.loads(connection.read())
278 if ('caution' in status['message'].lower() and
279 os.isatty(sys.stdout.fileno())):
280 # Display a prompt only if we are in an interactive shell. Without this
281 # check the commit queue behaves incorrectly because it considers
282 # prompts to be failures.
283 short_text = 'Tree state is: ' + status['general_state']
284 long_text = status['message'] + '\n' + json_url
285 tree_status_results.append(
286 output_api.PresubmitPromptWarning(
287 message=short_text, long_text=long_text))
289 # Tree status is closed. Put in message about contacting sheriff.
290 connection = input_api.urllib2.urlopen(
291 SKIA_TREE_STATUS_URL + '/current-sheriff')
292 sheriff_details = input_api.json.loads(connection.read())
294 tree_status_results[0]._message += (
295 '\n\nPlease contact the current Skia sheriff (%s) if you are trying '
296 'to submit a build fix\nand do not know how to submit because the '
297 'tree is closed') % sheriff_details['username']
298 return tree_status_results
301 class CodeReview(object):
302 """Abstracts which codereview tool is used for the specified issue."""
304 def __init__(self, input_api):
305 self._issue = input_api.change.issue
306 self._gerrit = input_api.gerrit
307 self._rietveld_properties = None
309 self._rietveld_properties = input_api.rietveld.get_issue_properties(
310 issue=int(self._issue), messages=True)
312 def GetOwnerEmail(self):
314 return self._gerrit.GetChangeOwner(self._issue)
316 return self._rietveld_properties['owner_email']
318 def GetSubject(self):
320 return self._gerrit.GetChangeInfo(self._issue)['subject']
322 return self._rietveld_properties['subject']
324 def GetDescription(self):
326 return self._gerrit.GetChangeDescription(self._issue)
328 return self._rietveld_properties['description']
332 return self._gerrit.GetChangeInfo(
333 self._issue)['labels']['Commit-Queue'].get('value', 0) == 1
335 return self._rietveld_properties['cq_dry_run']
337 def GetReviewers(self):
339 code_review_label = (
340 self._gerrit.GetChangeInfo(self._issue)['labels']['Code-Review'])
341 return [r['email'] for r in code_review_label.get('all', [])]
343 return self._rietveld_properties['reviewers']
345 def GetApprovers(self):
348 code_review_label = (
349 self._gerrit.GetChangeInfo(self._issue)['labels']['Code-Review'])
350 for m in code_review_label.get('all', []):
351 if m.get("value") == 1:
352 approvers.append(m["email"])
354 for m in self._rietveld_properties.get('messages', []):
355 if 'lgtm' in m['text'].lower():
356 approvers.append(m['sender'])
360 def _CheckOwnerIsInAuthorsFile(input_api, output_api):
362 if input_api.change.issue:
363 cr = CodeReview(input_api)
365 owner_email = cr.GetOwnerEmail()
368 for line in open(AUTHORS_FILE_NAME):
369 if not line.startswith('#'):
370 authors_content += line
371 email_fnmatches = re.findall('<(.*)>', authors_content)
372 for email_fnmatch in email_fnmatches:
373 if fnmatch.fnmatch(owner_email, email_fnmatch):
374 # Found a match, the user is in the AUTHORS file break out of the loop
378 output_api.PresubmitError(
379 'The email %s is not in Skia\'s AUTHORS file.\n'
380 'Issue owner, this CL must include an addition to the Skia AUTHORS '
384 # Do not fail if authors file cannot be found.
385 traceback.print_exc()
386 input_api.logging.error('AUTHORS file not found!')
391 def _CheckLGTMsForPublicAPI(input_api, output_api):
392 """Check LGTMs for public API changes.
394 For public API files make sure there is an LGTM from the list of owners in
398 requires_owner_check = False
399 for affected_file in input_api.AffectedFiles():
400 affected_file_path = affected_file.LocalPath()
401 file_path, file_ext = os.path.splitext(affected_file_path)
402 # We only care about files that end in .h and are under the top-level
403 # include dir, but not include/private.
404 if (file_ext == '.h' and
405 'include' == file_path.split(os.path.sep)[0] and
406 'private' not in file_path):
407 requires_owner_check = True
409 if not requires_owner_check:
412 lgtm_from_owner = False
413 if input_api.change.issue:
414 cr = CodeReview(input_api)
416 if re.match(REVERT_CL_SUBJECT_PREFIX, cr.GetSubject(), re.I):
417 # It is a revert CL, ignore the public api owners check.
421 # Ignore public api owners check for dry run CLs since they are not
422 # going to be committed.
426 for reviewer in cr.GetReviewers():
427 if reviewer in PUBLIC_API_OWNERS:
428 # If an owner is specified as an reviewer in Gerrit then ignore the
429 # public api owners check.
432 match = re.search(r'^TBR=(.*)$', cr.GetDescription(), re.M)
434 tbr_section = match.group(1).strip().split(' ')[0]
435 tbr_entries = tbr_section.split(',')
436 for owner in PUBLIC_API_OWNERS:
437 if owner in tbr_entries or owner.split('@')[0] in tbr_entries:
438 # If an owner is specified in the TBR= line then ignore the public
442 if cr.GetOwnerEmail() in PUBLIC_API_OWNERS:
443 # An owner created the CL that is an automatic LGTM.
444 lgtm_from_owner = True
446 for approver in cr.GetApprovers():
447 if approver in PUBLIC_API_OWNERS:
448 # Found an lgtm in a message from an owner.
449 lgtm_from_owner = True
452 if not lgtm_from_owner:
454 output_api.PresubmitError(
455 "If this CL adds to or changes Skia's public API, you need an LGTM "
456 "from any of %s. If this CL only removes from or doesn't change "
457 "Skia's public API, please add a short note to the CL saying so. "
458 "Add one of the owners as a reviewer to your CL. For Rietveld CLs "
459 "you also need to add one of those owners on a TBR= line. If you "
460 "don't know if this CL affects Skia's public API, treat it like it "
461 "does." % str(PUBLIC_API_OWNERS)))
465 def PostUploadHook(cl, change, output_api):
466 """git cl upload will call this hook after the issue is created/modified.
468 This hook does the following:
469 * Adds a link to the CL's Gold trybot results.
470 * Adds a link to preview docs changes if there are any docs changes in the CL.
471 * Adds 'NOTRY=true' if the CL contains only docs changes.
472 * Adds 'NOTREECHECKS=true' for non master branch changes since they do not
473 need to be gated on the master branch's tree.
474 * Adds 'NOTRY=true' for non master branch changes since trybots do not yet
476 * Adds 'NOPRESUBMIT=true' for non master branch changes since those don't
477 run the presubmit checks.
478 * Adds extra trybots for the paths defined in PATH_TO_EXTRA_TRYBOTS.
482 atleast_one_docs_change = False
483 all_docs_changes = True
484 for affected_file in change.AffectedFiles():
485 affected_file_path = affected_file.LocalPath()
486 file_path, _ = os.path.splitext(affected_file_path)
487 if 'site' == file_path.split(os.path.sep)[0]:
488 atleast_one_docs_change = True
490 all_docs_changes = False
491 if atleast_one_docs_change and not all_docs_changes:
496 original_description = cl.GetDescription()
499 # Remove Change-Id from description and add it back at the end.
500 regex = re.compile(r'^(Change-Id: (\w+))(\n*)\Z', re.M | re.I)
501 changeIdLine = re.search(regex, original_description).group(0)
502 original_description = re.sub(regex, '', original_description)
503 original_description = re.sub('\n+\Z', '\n', original_description)
505 new_description = original_description
507 # Add GOLD_TRYBOT_URL if it does not exist yet.
508 if not re.search(r'^GOLD_TRYBOT_URL=', new_description, re.M | re.I):
509 new_description += '\nGOLD_TRYBOT_URL= %s%s' % (GOLD_TRYBOT_URL, issue)
511 output_api.PresubmitNotifyResult(
512 'Added link to Gold trybot runs to the CL\'s description.\n'
513 'Note: Results may take sometime to be populated after trybots '
516 # If the change includes only doc changes then add NOTRY=true in the
517 # CL's description if it does not exist yet.
518 if all_docs_changes and not re.search(
519 r'^NOTRY=true$', new_description, re.M | re.I):
520 new_description += '\nNOTRY=true'
522 output_api.PresubmitNotifyResult(
523 'This change has only doc changes. Automatically added '
524 '\'NOTRY=true\' to the CL\'s description'))
526 # If there is atleast one docs change then add preview link in the CL's
527 # description if it does not already exist there.
528 if atleast_one_docs_change and not re.search(
529 r'^DOCS_PREVIEW=.*', new_description, re.M | re.I):
530 # Automatically add a link to where the docs can be previewed.
531 new_description += '\nDOCS_PREVIEW= %s%s' % (DOCS_PREVIEW_URL, issue)
533 output_api.PresubmitNotifyResult(
534 'Automatically added a link to preview the docs changes to the '
535 'CL\'s description'))
537 # If the target ref is not master then add NOTREECHECKS=true and NOTRY=true
538 # to the CL's description if it does not already exist there.
539 target_ref = cl.GetRemoteBranch()[1]
540 if target_ref != 'refs/remotes/origin/master':
542 r'^NOTREECHECKS=true$', new_description, re.M | re.I):
543 new_description += "\nNOTREECHECKS=true"
545 output_api.PresubmitNotifyResult(
546 'Branch changes do not need to rely on the master branch\'s '
547 'tree status. Automatically added \'NOTREECHECKS=true\' to the '
548 'CL\'s description'))
550 r'^NOTRY=true$', new_description, re.M | re.I):
551 new_description += "\nNOTRY=true"
553 output_api.PresubmitNotifyResult(
554 'Trybots do not yet work for non-master branches. '
555 'Automatically added \'NOTRY=true\' to the CL\'s description'))
557 r'^NOPRESUBMIT=true$', new_description, re.M | re.I):
558 new_description += "\nNOPRESUBMIT=true"
560 output_api.PresubmitNotifyResult(
561 'Branch changes do not run the presubmit checks.'))
563 # Automatically set CQ_INCLUDE_TRYBOTS if any of the changed files here
564 # begin with the paths of interest.
565 cq_master_to_trybots = collections.defaultdict(set)
566 for affected_file in change.AffectedFiles():
567 affected_file_path = affected_file.LocalPath()
568 for path_prefix, extra_bots in PATH_PREFIX_TO_EXTRA_TRYBOTS.iteritems():
569 if affected_file_path.startswith(path_prefix):
571 output_api.PresubmitNotifyResult(
572 'Your CL modifies the path %s.\nAutomatically adding %s to '
573 'the CL description.' % (affected_file_path, extra_bots)))
574 _MergeCQExtraTrybotsMaps(
575 cq_master_to_trybots, _GetCQExtraTrybotsMap(extra_bots))
576 if cq_master_to_trybots:
577 new_description = _AddCQExtraTrybotsToDesc(
578 cq_master_to_trybots, new_description)
580 # If the description has changed update it.
581 if new_description != original_description:
583 # The Change-Id line must have two newlines before it.
584 new_description += '\n\n' + changeIdLine
585 cl.UpdateDescription(new_description)
590 def _AddCQExtraTrybotsToDesc(cq_master_to_trybots, description):
591 """Adds the specified master and trybots to the CQ_INCLUDE_TRYBOTS keyword.
593 If the keyword already exists in the description then it appends to it only
594 if the specified values do not already exist.
595 If the keyword does not exist then it creates a new section in the
598 match = re.search(r'^CQ_INCLUDE_TRYBOTS=(.*)$', description, re.M | re.I)
600 original_trybots_map = _GetCQExtraTrybotsMap(match.group(1))
601 _MergeCQExtraTrybotsMaps(cq_master_to_trybots, original_trybots_map)
602 new_description = description.replace(
603 match.group(0), _GetCQExtraTrybotsStr(cq_master_to_trybots))
605 new_description = description + "\n%s" % (
606 _GetCQExtraTrybotsStr(cq_master_to_trybots))
607 return new_description
610 def _MergeCQExtraTrybotsMaps(dest_map, map_to_be_consumed):
611 """Merges two maps of masters to trybots into one."""
612 for master, trybots in map_to_be_consumed.iteritems():
613 dest_map[master].update(trybots)
617 def _GetCQExtraTrybotsMap(cq_extra_trybots_str):
618 """Parses CQ_INCLUDE_TRYBOTS str and returns a map of masters to trybots."""
619 cq_master_to_trybots = collections.defaultdict(set)
620 for section in cq_extra_trybots_str.split(';'):
622 master, bots = section.split(':')
623 cq_master_to_trybots[master].update(bots.split(','))
624 return cq_master_to_trybots
627 def _GetCQExtraTrybotsStr(cq_master_to_trybots):
628 """Constructs the CQ_INCLUDE_TRYBOTS str from a map of masters to trybots."""
630 for master, trybots in cq_master_to_trybots.iteritems():
631 sections.append('%s:%s' % (master, ','.join(trybots)))
632 return 'CQ_INCLUDE_TRYBOTS=%s' % ';'.join(sections)
635 def CheckChangeOnCommit(input_api, output_api):
636 """Presubmit checks for the change on commit.
638 The following are the presubmit checks:
639 * Check change has one and only one EOL.
640 * Ensures that the Skia tree is open in
641 http://skia-tree-status.appspot.com/. Shows a warning if it is in 'Caution'
642 state and an error if it is in 'Closed' state.
645 results.extend(_CommonChecks(input_api, output_api))
647 _CheckTreeStatus(input_api, output_api, json_url=(
648 SKIA_TREE_STATUS_URL + '/banner-status?format=json')))
649 results.extend(_CheckLGTMsForPublicAPI(input_api, output_api))
650 results.extend(_CheckOwnerIsInAuthorsFile(input_api, output_api))