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 'cmake/': 'master.client.skia.compile:Build-Mac-Clang-x86_64-Release-CMake-Trybot,Build-Ubuntu-GCC-x86_64-Release-CMake-Trybot',
45 # pylint: disable=line-too-long
46 'src/opts/': 'master.client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot',
48 'include/private/SkAtomics.h': ('master.client.skia:'
49 'Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-TSAN-Trybot,'
50 'Test-Ubuntu-GCC-Golo-GPU-GT610-x86_64-Release-TSAN-Trybot'
53 # Below are examples to show what is possible with this feature.
54 # 'src/svg/': 'master1:abc;master2:def',
55 # 'src/svg/parser/': 'master3:ghi,jkl;master4:mno',
56 # 'src/image/SkImage_Base.h': 'master5:pqr,stu;master1:abc1;master2:def',
60 def _CheckChangeHasEol(input_api, output_api, source_file_filter=None):
61 """Checks that files end with atleast one \n (LF)."""
63 for f in input_api.AffectedSourceFiles(source_file_filter):
64 contents = input_api.ReadFile(f, 'rb')
65 # Check that the file ends in atleast one newline character.
66 if len(contents) > 1 and contents[-1:] != '\n':
67 eof_files.append(f.LocalPath())
70 return [output_api.PresubmitPromptWarning(
71 'These files should end in a newline character:',
76 def _PythonChecks(input_api, output_api):
77 """Run checks on any modified Python files."""
78 pylint_disabled_warnings = (
79 'F0401', # Unable to import.
80 'E0611', # No name in module.
81 'W0232', # Class has no __init__ method.
82 'E1002', # Use of super on an old style class.
83 'W0403', # Relative import used.
84 'R0201', # Method could be a function.
85 'E1003', # Using class name in super.
86 'W0613', # Unused argument.
87 'W0105', # String statement has no effect.
89 # Run Pylint on only the modified python files. Unfortunately it still runs
90 # Pylint on the whole file instead of just the modified lines.
91 affected_python_files = []
92 for affected_file in input_api.AffectedSourceFiles(None):
93 affected_file_path = affected_file.LocalPath()
94 if affected_file_path.endswith('.py'):
95 affected_python_files.append(affected_file_path)
96 return input_api.canned_checks.RunPylint(
97 input_api, output_api,
98 disabled_warnings=pylint_disabled_warnings,
99 white_list=affected_python_files)
102 def _IfDefChecks(input_api, output_api):
103 """Ensures if/ifdef are not before includes. See skbug/3362 for details."""
104 comment_block_start_pattern = re.compile('^\s*\/\*.*$')
105 comment_block_middle_pattern = re.compile('^\s+\*.*')
106 comment_block_end_pattern = re.compile('^\s+\*\/.*$')
107 single_line_comment_pattern = re.compile('^\s*//.*$')
108 def is_comment(line):
109 return (comment_block_start_pattern.match(line) or
110 comment_block_middle_pattern.match(line) or
111 comment_block_end_pattern.match(line) or
112 single_line_comment_pattern.match(line))
114 empty_line_pattern = re.compile('^\s*$')
115 def is_empty_line(line):
116 return empty_line_pattern.match(line)
119 for affected_file in input_api.AffectedSourceFiles(None):
120 affected_file_path = affected_file.LocalPath()
121 if affected_file_path.endswith('.cpp') or affected_file_path.endswith('.h'):
122 f = open(affected_file_path)
123 for line in f.xreadlines():
124 if is_comment(line) or is_empty_line(line):
126 # The below will be the first real line after comments and newlines.
127 if line.startswith('#if 0 '):
129 elif line.startswith('#if ') or line.startswith('#ifdef '):
130 failing_files.append(affected_file_path)
136 output_api.PresubmitError(
137 'The following files have #if or #ifdef before includes:\n%s\n\n'
138 'See https://bug.skia.org/3362 for why this should be fixed.' %
139 '\n'.join(failing_files)))
143 def _CopyrightChecks(input_api, output_api, source_file_filter=None):
145 year_pattern = r'\d{4}'
146 year_range_pattern = r'%s(-%s)?' % (year_pattern, year_pattern)
147 years_pattern = r'%s(,%s)*,?' % (year_range_pattern, year_range_pattern)
148 copyright_pattern = (
149 r'Copyright (\([cC]\) )?%s \w+' % years_pattern)
151 for affected_file in input_api.AffectedSourceFiles(source_file_filter):
152 if 'third_party' in affected_file.LocalPath():
154 contents = input_api.ReadFile(affected_file, 'rb')
155 if not re.search(copyright_pattern, contents):
156 results.append(output_api.PresubmitError(
157 '%s is missing a correct copyright header.' % affected_file))
161 def _ToolFlags(input_api, output_api):
162 """Make sure `{dm,nanobench}_flags.py test` passes if modified."""
164 sources = lambda x: ('dm_flags.py' in x.LocalPath() or
165 'nanobench_flags.py' in x.LocalPath())
166 for f in input_api.AffectedSourceFiles(sources):
167 if 0 != subprocess.call(['python', f.LocalPath(), 'test']):
168 results.append(output_api.PresubmitError('`python %s test` failed' % f))
172 def _RecipeSimulationTest(input_api, output_api):
173 """Run the recipe simulation test."""
175 recipes_py = os.path.join('infra', 'bots', 'recipes.py')
176 cmd = ['python', recipes_py, 'simulation_test']
178 subprocess.check_output(cmd)
179 except subprocess.CalledProcessError as e:
180 results.append(output_api.PresubmitError(
181 '`%s` failed:\n%s' % (' '.join(cmd), e.output)))
185 def _CommonChecks(input_api, output_api):
186 """Presubmit checks common to upload and commit."""
188 sources = lambda x: (x.LocalPath().endswith('.h') or
189 x.LocalPath().endswith('.gypi') or
190 x.LocalPath().endswith('.gyp') or
191 x.LocalPath().endswith('.py') or
192 x.LocalPath().endswith('.sh') or
193 x.LocalPath().endswith('.m') or
194 x.LocalPath().endswith('.mm') or
195 x.LocalPath().endswith('.go') or
196 x.LocalPath().endswith('.c') or
197 x.LocalPath().endswith('.cc') or
198 x.LocalPath().endswith('.cpp'))
201 input_api, output_api, source_file_filter=sources))
202 results.extend(_PythonChecks(input_api, output_api))
203 results.extend(_IfDefChecks(input_api, output_api))
204 results.extend(_CopyrightChecks(input_api, output_api,
205 source_file_filter=sources))
206 results.extend(_ToolFlags(input_api, output_api))
210 def CheckChangeOnUpload(input_api, output_api):
211 """Presubmit checks for the change on upload.
213 The following are the presubmit checks:
214 * Check change has one and only one EOL.
217 results.extend(_CommonChecks(input_api, output_api))
218 # Run on upload, not commit, since the presubmit bot apparently doesn't have
219 # coverage installed.
220 results.extend(_RecipeSimulationTest(input_api, output_api))
224 def _CheckTreeStatus(input_api, output_api, json_url):
225 """Check whether to allow commit.
228 input_api: input related apis.
229 output_api: output related apis.
230 json_url: url to download json style status.
232 tree_status_results = input_api.canned_checks.CheckTreeIsOpen(
233 input_api, output_api, json_url=json_url)
234 if not tree_status_results:
235 # Check for caution state only if tree is not closed.
236 connection = input_api.urllib2.urlopen(json_url)
237 status = input_api.json.loads(connection.read())
239 if ('caution' in status['message'].lower() and
240 os.isatty(sys.stdout.fileno())):
241 # Display a prompt only if we are in an interactive shell. Without this
242 # check the commit queue behaves incorrectly because it considers
243 # prompts to be failures.
244 short_text = 'Tree state is: ' + status['general_state']
245 long_text = status['message'] + '\n' + json_url
246 tree_status_results.append(
247 output_api.PresubmitPromptWarning(
248 message=short_text, long_text=long_text))
250 # Tree status is closed. Put in message about contacting sheriff.
251 connection = input_api.urllib2.urlopen(
252 SKIA_TREE_STATUS_URL + '/current-sheriff')
253 sheriff_details = input_api.json.loads(connection.read())
255 tree_status_results[0]._message += (
256 '\n\nPlease contact the current Skia sheriff (%s) if you are trying '
257 'to submit a build fix\nand do not know how to submit because the '
258 'tree is closed') % sheriff_details['username']
259 return tree_status_results
262 def _CheckOwnerIsInAuthorsFile(input_api, output_api):
264 issue = input_api.change.issue
265 if issue and input_api.rietveld:
266 issue_properties = input_api.rietveld.get_issue_properties(
267 issue=int(issue), messages=False)
268 owner_email = issue_properties['owner_email']
272 for line in open(AUTHORS_FILE_NAME):
273 if not line.startswith('#'):
274 authors_content += line
275 email_fnmatches = re.findall('<(.*)>', authors_content)
276 for email_fnmatch in email_fnmatches:
277 if fnmatch.fnmatch(owner_email, email_fnmatch):
278 # Found a match, the user is in the AUTHORS file break out of the loop
282 output_api.PresubmitError(
283 'The email %s is not in Skia\'s AUTHORS file.\n'
284 'Issue owner, this CL must include an addition to the Skia AUTHORS '
288 # Do not fail if authors file cannot be found.
289 traceback.print_exc()
290 input_api.logging.error('AUTHORS file not found!')
295 def _CheckLGTMsForPublicAPI(input_api, output_api):
296 """Check LGTMs for public API changes.
298 For public API files make sure there is an LGTM from the list of owners in
302 requires_owner_check = False
303 for affected_file in input_api.AffectedFiles():
304 affected_file_path = affected_file.LocalPath()
305 file_path, file_ext = os.path.splitext(affected_file_path)
306 # We only care about files that end in .h and are under the top-level
307 # include dir, but not include/private.
308 if (file_ext == '.h' and
309 'include' == file_path.split(os.path.sep)[0] and
310 'private' not in file_path):
311 requires_owner_check = True
313 if not requires_owner_check:
316 lgtm_from_owner = False
317 issue = input_api.change.issue
318 if issue and input_api.rietveld:
319 issue_properties = input_api.rietveld.get_issue_properties(
320 issue=int(issue), messages=True)
321 if re.match(REVERT_CL_SUBJECT_PREFIX, issue_properties['subject'], re.I):
322 # It is a revert CL, ignore the public api owners check.
325 if issue_properties['cq_dry_run']:
326 # Ignore public api owners check for dry run CLs since they are not
327 # going to be committed.
330 match = re.search(r'^TBR=(.*)$', issue_properties['description'], re.M)
332 tbr_entries = match.group(1).strip().split(',')
333 for owner in PUBLIC_API_OWNERS:
334 if owner in tbr_entries or owner.split('@')[0] in tbr_entries:
335 # If an owner is specified in the TBR= line then ignore the public
339 if issue_properties['owner_email'] in PUBLIC_API_OWNERS:
340 # An owner created the CL that is an automatic LGTM.
341 lgtm_from_owner = True
343 messages = issue_properties.get('messages')
345 for message in messages:
346 if (message['sender'] in PUBLIC_API_OWNERS and
347 'lgtm' in message['text'].lower()):
348 # Found an lgtm in a message from an owner.
349 lgtm_from_owner = True
352 if not lgtm_from_owner:
354 output_api.PresubmitError(
355 "If this CL adds to or changes Skia's public API, you need an LGTM "
356 "from any of %s. If this CL only removes from or doesn't change "
357 "Skia's public API, please add a short note to the CL saying so "
358 "and add one of those reviewers on a TBR= line. If you don't know "
359 "if this CL affects Skia's public API, treat it like it does."
360 % str(PUBLIC_API_OWNERS)))
364 def PostUploadHook(cl, change, output_api):
365 """git cl upload will call this hook after the issue is created/modified.
367 This hook does the following:
368 * Adds a link to the CL's Gold trybot results.
369 * Adds a link to preview docs changes if there are any docs changes in the CL.
370 * Adds 'NOTRY=true' if the CL contains only docs changes.
371 * Adds 'NOTREECHECKS=true' for non master branch changes since they do not
372 need to be gated on the master branch's tree.
373 * Adds 'NOTRY=true' for non master branch changes since trybots do not yet
375 * Adds 'NOPRESUBMIT=true' for non master branch changes since those don't
376 run the presubmit checks.
377 * Adds extra trybots for the paths defined in PATH_TO_EXTRA_TRYBOTS.
381 atleast_one_docs_change = False
382 all_docs_changes = True
383 for affected_file in change.AffectedFiles():
384 affected_file_path = affected_file.LocalPath()
385 file_path, _ = os.path.splitext(affected_file_path)
386 if 'site' == file_path.split(os.path.sep)[0]:
387 atleast_one_docs_change = True
389 all_docs_changes = False
390 if atleast_one_docs_change and not all_docs_changes:
394 rietveld_obj = cl.RpcServer()
395 if issue and rietveld_obj:
396 original_description = rietveld_obj.get_description(issue)
397 new_description = original_description
399 # Add GOLD_TRYBOT_URL if it does not exist yet.
400 if not re.search(r'^GOLD_TRYBOT_URL=', new_description, re.M | re.I):
401 new_description += '\nGOLD_TRYBOT_URL= %s%s' % (GOLD_TRYBOT_URL, issue)
403 output_api.PresubmitNotifyResult(
404 'Added link to Gold trybot runs to the CL\'s description.\n'
405 'Note: Results may take sometime to be populated after trybots '
408 # If the change includes only doc changes then add NOTRY=true in the
409 # CL's description if it does not exist yet.
410 if all_docs_changes and not re.search(
411 r'^NOTRY=true$', new_description, re.M | re.I):
412 new_description += '\nNOTRY=true'
414 output_api.PresubmitNotifyResult(
415 'This change has only doc changes. Automatically added '
416 '\'NOTRY=true\' to the CL\'s description'))
418 # If there is atleast one docs change then add preview link in the CL's
419 # description if it does not already exist there.
420 if atleast_one_docs_change and not re.search(
421 r'^DOCS_PREVIEW=.*', new_description, re.M | re.I):
422 # Automatically add a link to where the docs can be previewed.
423 new_description += '\nDOCS_PREVIEW= %s%s' % (DOCS_PREVIEW_URL, issue)
425 output_api.PresubmitNotifyResult(
426 'Automatically added a link to preview the docs changes to the '
427 'CL\'s description'))
429 # If the target ref is not master then add NOTREECHECKS=true and NOTRY=true
430 # to the CL's description if it does not already exist there.
431 target_ref = rietveld_obj.get_issue_properties(issue, False).get(
433 if target_ref != 'refs/heads/master':
435 r'^NOTREECHECKS=true$', new_description, re.M | re.I):
436 new_description += "\nNOTREECHECKS=true"
438 output_api.PresubmitNotifyResult(
439 'Branch changes do not need to rely on the master branch\'s '
440 'tree status. Automatically added \'NOTREECHECKS=true\' to the '
441 'CL\'s description'))
443 r'^NOTRY=true$', new_description, re.M | re.I):
444 new_description += "\nNOTRY=true"
446 output_api.PresubmitNotifyResult(
447 'Trybots do not yet work for non-master branches. '
448 'Automatically added \'NOTRY=true\' to the CL\'s description'))
450 r'^NOPRESUBMIT=true$', new_description, re.M | re.I):
451 new_description += "\nNOPRESUBMIT=true"
453 output_api.PresubmitNotifyResult(
454 'Branch changes do not run the presubmit checks.'))
456 # Automatically set CQ_INCLUDE_TRYBOTS if any of the changed files here
457 # begin with the paths of interest.
458 cq_master_to_trybots = collections.defaultdict(set)
459 for affected_file in change.AffectedFiles():
460 affected_file_path = affected_file.LocalPath()
461 for path_prefix, extra_bots in PATH_PREFIX_TO_EXTRA_TRYBOTS.iteritems():
462 if affected_file_path.startswith(path_prefix):
464 output_api.PresubmitNotifyResult(
465 'Your CL modifies the path %s.\nAutomatically adding %s to '
466 'the CL description.' % (affected_file_path, extra_bots)))
467 _MergeCQExtraTrybotsMaps(
468 cq_master_to_trybots, _GetCQExtraTrybotsMap(extra_bots))
469 if cq_master_to_trybots:
470 new_description = _AddCQExtraTrybotsToDesc(
471 cq_master_to_trybots, new_description)
473 # If the description has changed update it.
474 if new_description != original_description:
475 rietveld_obj.update_description(issue, new_description)
480 def _AddCQExtraTrybotsToDesc(cq_master_to_trybots, description):
481 """Adds the specified master and trybots to the CQ_INCLUDE_TRYBOTS keyword.
483 If the keyword already exists in the description then it appends to it only
484 if the specified values do not already exist.
485 If the keyword does not exist then it creates a new section in the
488 match = re.search(r'^CQ_INCLUDE_TRYBOTS=(.*)$', description, re.M | re.I)
490 original_trybots_map = _GetCQExtraTrybotsMap(match.group(1))
491 _MergeCQExtraTrybotsMaps(cq_master_to_trybots, original_trybots_map)
492 new_description = description.replace(
493 match.group(0), _GetCQExtraTrybotsStr(cq_master_to_trybots))
495 new_description = description + "\n%s" % (
496 _GetCQExtraTrybotsStr(cq_master_to_trybots))
497 return new_description
500 def _MergeCQExtraTrybotsMaps(dest_map, map_to_be_consumed):
501 """Merges two maps of masters to trybots into one."""
502 for master, trybots in map_to_be_consumed.iteritems():
503 dest_map[master].update(trybots)
507 def _GetCQExtraTrybotsMap(cq_extra_trybots_str):
508 """Parses CQ_INCLUDE_TRYBOTS str and returns a map of masters to trybots."""
509 cq_master_to_trybots = collections.defaultdict(set)
510 for section in cq_extra_trybots_str.split(';'):
512 master, bots = section.split(':')
513 cq_master_to_trybots[master].update(bots.split(','))
514 return cq_master_to_trybots
517 def _GetCQExtraTrybotsStr(cq_master_to_trybots):
518 """Constructs the CQ_INCLUDE_TRYBOTS str from a map of masters to trybots."""
520 for master, trybots in cq_master_to_trybots.iteritems():
521 sections.append('%s:%s' % (master, ','.join(trybots)))
522 return 'CQ_INCLUDE_TRYBOTS=%s' % ';'.join(sections)
525 def CheckChangeOnCommit(input_api, output_api):
526 """Presubmit checks for the change on commit.
528 The following are the presubmit checks:
529 * Check change has one and only one EOL.
530 * Ensures that the Skia tree is open in
531 http://skia-tree-status.appspot.com/. Shows a warning if it is in 'Caution'
532 state and an error if it is in 'Closed' state.
535 results.extend(_CommonChecks(input_api, output_api))
537 _CheckTreeStatus(input_api, output_api, json_url=(
538 SKIA_TREE_STATUS_URL + '/banner-status?format=json')))
539 results.extend(_CheckLGTMsForPublicAPI(input_api, output_api))
540 results.extend(_CheckOwnerIsInAuthorsFile(input_api, output_api))