| # Copyright (c) 2013 The Chromium Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| |
| """Top-level presubmit script for Skia. |
| |
| See http://dev.chromium.org/developers/how-tos/depottools/presubmit-scripts |
| for more details about the presubmit API built into gcl. |
| """ |
| |
| import collections |
| import csv |
| import fnmatch |
| import os |
| import re |
| import subprocess |
| import sys |
| import traceback |
| |
| |
| REVERT_CL_SUBJECT_PREFIX = 'Revert ' |
| |
| SKIA_TREE_STATUS_URL = 'http://skia-tree-status.appspot.com' |
| |
| # Please add the complete email address here (and not just 'xyz@' or 'xyz'). |
| PUBLIC_API_OWNERS = ( |
| 'mtklein@chromium.org', |
| 'mtklein@google.com', |
| 'reed@chromium.org', |
| 'reed@google.com', |
| 'bsalomon@chromium.org', |
| 'bsalomon@google.com', |
| 'djsollen@chromium.org', |
| 'djsollen@google.com', |
| 'hcm@chromium.org', |
| 'hcm@google.com', |
| ) |
| |
| AUTHORS_FILE_NAME = 'AUTHORS' |
| |
| DOCS_PREVIEW_URL = 'https://skia.org/?cl=' |
| GOLD_TRYBOT_URL = 'https://gold.skia.org/search?issue=' |
| |
| SERVICE_ACCOUNT_SUFFIX = [ |
| '@%s.iam.gserviceaccount.com' % project for project in [ |
| 'skia-buildbots.google.com', 'skia-swarming-bots', 'skia-public', |
| 'skia-corp.google.com', 'chops-service-accounts']] |
| |
| |
| def _CheckChangeHasEol(input_api, output_api, source_file_filter=None): |
| """Checks that files end with atleast one \n (LF).""" |
| eof_files = [] |
| for f in input_api.AffectedSourceFiles(source_file_filter): |
| contents = input_api.ReadFile(f, 'rb') |
| # Check that the file ends in atleast one newline character. |
| if len(contents) > 1 and contents[-1:] != '\n': |
| eof_files.append(f.LocalPath()) |
| |
| if eof_files: |
| return [output_api.PresubmitPromptWarning( |
| 'These files should end in a newline character:', |
| items=eof_files)] |
| return [] |
| |
| |
| def _JsonChecks(input_api, output_api): |
| """Run checks on any modified json files.""" |
| failing_files = [] |
| for affected_file in input_api.AffectedFiles(None): |
| affected_file_path = affected_file.LocalPath() |
| is_json = affected_file_path.endswith('.json') |
| is_metadata = (affected_file_path.startswith('site/') and |
| affected_file_path.endswith('/METADATA')) |
| if is_json or is_metadata: |
| try: |
| input_api.json.load(open(affected_file_path, 'r')) |
| except ValueError: |
| failing_files.append(affected_file_path) |
| |
| results = [] |
| if failing_files: |
| results.append( |
| output_api.PresubmitError( |
| 'The following files contain invalid json:\n%s\n\n' % |
| '\n'.join(failing_files))) |
| return results |
| |
| |
| def _IfDefChecks(input_api, output_api): |
| """Ensures if/ifdef are not before includes. See skbug/3362 for details.""" |
| comment_block_start_pattern = re.compile('^\s*\/\*.*$') |
| comment_block_middle_pattern = re.compile('^\s+\*.*') |
| comment_block_end_pattern = re.compile('^\s+\*\/.*$') |
| single_line_comment_pattern = re.compile('^\s*//.*$') |
| def is_comment(line): |
| return (comment_block_start_pattern.match(line) or |
| comment_block_middle_pattern.match(line) or |
| comment_block_end_pattern.match(line) or |
| single_line_comment_pattern.match(line)) |
| |
| empty_line_pattern = re.compile('^\s*$') |
| def is_empty_line(line): |
| return empty_line_pattern.match(line) |
| |
| failing_files = [] |
| for affected_file in input_api.AffectedSourceFiles(None): |
| affected_file_path = affected_file.LocalPath() |
| if affected_file_path.endswith('.cpp') or affected_file_path.endswith('.h'): |
| f = open(affected_file_path) |
| for line in f.xreadlines(): |
| if is_comment(line) or is_empty_line(line): |
| continue |
| # The below will be the first real line after comments and newlines. |
| if line.startswith('#if 0 '): |
| pass |
| elif line.startswith('#if ') or line.startswith('#ifdef '): |
| failing_files.append(affected_file_path) |
| break |
| |
| results = [] |
| if failing_files: |
| results.append( |
| output_api.PresubmitError( |
| 'The following files have #if or #ifdef before includes:\n%s\n\n' |
| 'See https://bug.skia.org/3362 for why this should be fixed.' % |
| '\n'.join(failing_files))) |
| return results |
| |
| |
| def _CopyrightChecks(input_api, output_api, source_file_filter=None): |
| results = [] |
| year_pattern = r'\d{4}' |
| year_range_pattern = r'%s(-%s)?' % (year_pattern, year_pattern) |
| years_pattern = r'%s(,%s)*,?' % (year_range_pattern, year_range_pattern) |
| copyright_pattern = ( |
| r'Copyright (\([cC]\) )?%s \w+' % years_pattern) |
| |
| for affected_file in input_api.AffectedSourceFiles(source_file_filter): |
| if 'third_party' in affected_file.LocalPath(): |
| continue |
| contents = input_api.ReadFile(affected_file, 'rb') |
| if not re.search(copyright_pattern, contents): |
| results.append(output_api.PresubmitError( |
| '%s is missing a correct copyright header.' % affected_file)) |
| return results |
| |
| |
| def _ToolFlags(input_api, output_api): |
| """Make sure `{dm,nanobench}_flags.py test` passes if modified.""" |
| results = [] |
| sources = lambda x: ('dm_flags.py' in x.LocalPath() or |
| 'nanobench_flags.py' in x.LocalPath()) |
| for f in input_api.AffectedSourceFiles(sources): |
| if 0 != subprocess.call(['python', f.LocalPath(), 'test']): |
| results.append(output_api.PresubmitError('`python %s test` failed' % f)) |
| return results |
| |
| |
| def _InfraTests(input_api, output_api): |
| """Run the infra tests.""" |
| results = [] |
| if not any(f.LocalPath().startswith('infra') |
| for f in input_api.AffectedFiles()): |
| return results |
| |
| cmd = ['python', os.path.join('infra', 'bots', 'infra_tests.py')] |
| try: |
| subprocess.check_output(cmd) |
| except subprocess.CalledProcessError as e: |
| results.append(output_api.PresubmitError( |
| '`%s` failed:\n%s' % (' '.join(cmd), e.output))) |
| return results |
| |
| |
| def _CheckGNFormatted(input_api, output_api): |
| """Make sure any .gn files we're changing have been formatted.""" |
| results = [] |
| for f in input_api.AffectedFiles(): |
| if (not f.LocalPath().endswith('.gn') and |
| not f.LocalPath().endswith('.gni')): |
| continue |
| |
| gn = 'gn.bat' if 'win32' in sys.platform else 'gn' |
| cmd = [gn, 'format', '--dry-run', f.LocalPath()] |
| try: |
| subprocess.check_output(cmd) |
| except subprocess.CalledProcessError: |
| fix = 'gn format ' + f.LocalPath() |
| results.append(output_api.PresubmitError( |
| '`%s` failed, try\n\t%s' % (' '.join(cmd), fix))) |
| return results |
| |
| |
| def _CheckCompileIsolate(input_api, output_api): |
| """Ensure that gen_compile_isolate.py does not change compile.isolate.""" |
| # Only run the check if files were added or removed. |
| results = [] |
| script = os.path.join('infra', 'bots', 'gen_compile_isolate.py') |
| isolate = os.path.join('infra', 'bots', 'compile.isolated') |
| for f in input_api.AffectedFiles(): |
| if f.Action() in ('A', 'D', 'R'): |
| break |
| if f.LocalPath() in (script, isolate): |
| break |
| else: |
| return results |
| |
| cmd = ['python', script, 'test'] |
| try: |
| subprocess.check_output(cmd, stderr=subprocess.STDOUT) |
| except subprocess.CalledProcessError as e: |
| results.append(output_api.PresubmitError(e.output)) |
| return results |
| |
| |
| class _WarningsAsErrors(): |
| def __init__(self, output_api): |
| self.output_api = output_api |
| self.old_warning = None |
| def __enter__(self): |
| self.old_warning = self.output_api.PresubmitPromptWarning |
| self.output_api.PresubmitPromptWarning = self.output_api.PresubmitError |
| return self.output_api |
| def __exit__(self, ex_type, ex_value, ex_traceback): |
| self.output_api.PresubmitPromptWarning = self.old_warning |
| |
| |
| def _CommonChecks(input_api, output_api): |
| """Presubmit checks common to upload and commit.""" |
| results = [] |
| sources = lambda x: (x.LocalPath().endswith('.h') or |
| x.LocalPath().endswith('.py') or |
| x.LocalPath().endswith('.sh') or |
| x.LocalPath().endswith('.m') or |
| x.LocalPath().endswith('.mm') or |
| x.LocalPath().endswith('.go') or |
| x.LocalPath().endswith('.c') or |
| x.LocalPath().endswith('.cc') or |
| x.LocalPath().endswith('.cpp')) |
| results.extend(_CheckChangeHasEol( |
| input_api, output_api, source_file_filter=sources)) |
| with _WarningsAsErrors(output_api): |
| results.extend(input_api.canned_checks.CheckChangeHasNoCR( |
| input_api, output_api, source_file_filter=sources)) |
| results.extend(input_api.canned_checks.CheckChangeHasNoStrayWhitespace( |
| input_api, output_api, source_file_filter=sources)) |
| results.extend(_JsonChecks(input_api, output_api)) |
| results.extend(_IfDefChecks(input_api, output_api)) |
| results.extend(_CopyrightChecks(input_api, output_api, |
| source_file_filter=sources)) |
| results.extend(_ToolFlags(input_api, output_api)) |
| results.extend(_CheckCompileIsolate(input_api, output_api)) |
| return results |
| |
| |
| def CheckChangeOnUpload(input_api, output_api): |
| """Presubmit checks for the change on upload. |
| |
| The following are the presubmit checks: |
| * Check change has one and only one EOL. |
| """ |
| results = [] |
| results.extend(_CommonChecks(input_api, output_api)) |
| # Run on upload, not commit, since the presubmit bot apparently doesn't have |
| # coverage or Go installed. |
| results.extend(_InfraTests(input_api, output_api)) |
| |
| results.extend(_CheckGNFormatted(input_api, output_api)) |
| return results |
| |
| |
| def _CheckTreeStatus(input_api, output_api, json_url): |
| """Check whether to allow commit. |
| |
| Args: |
| input_api: input related apis. |
| output_api: output related apis. |
| json_url: url to download json style status. |
| """ |
| tree_status_results = input_api.canned_checks.CheckTreeIsOpen( |
| input_api, output_api, json_url=json_url) |
| if not tree_status_results: |
| # Check for caution state only if tree is not closed. |
| connection = input_api.urllib2.urlopen(json_url) |
| status = input_api.json.loads(connection.read()) |
| connection.close() |
| if ('caution' in status['message'].lower() and |
| os.isatty(sys.stdout.fileno())): |
| # Display a prompt only if we are in an interactive shell. Without this |
| # check the commit queue behaves incorrectly because it considers |
| # prompts to be failures. |
| short_text = 'Tree state is: ' + status['general_state'] |
| long_text = status['message'] + '\n' + json_url |
| tree_status_results.append( |
| output_api.PresubmitPromptWarning( |
| message=short_text, long_text=long_text)) |
| else: |
| # Tree status is closed. Put in message about contacting sheriff. |
| connection = input_api.urllib2.urlopen( |
| SKIA_TREE_STATUS_URL + '/current-sheriff') |
| sheriff_details = input_api.json.loads(connection.read()) |
| if sheriff_details: |
| tree_status_results[0]._message += ( |
| '\n\nPlease contact the current Skia sheriff (%s) if you are trying ' |
| 'to submit a build fix\nand do not know how to submit because the ' |
| 'tree is closed') % sheriff_details['username'] |
| return tree_status_results |
| |
| |
| class CodeReview(object): |
| """Abstracts which codereview tool is used for the specified issue.""" |
| |
| def __init__(self, input_api): |
| self._issue = input_api.change.issue |
| self._gerrit = input_api.gerrit |
| |
| def GetOwnerEmail(self): |
| return self._gerrit.GetChangeOwner(self._issue) |
| |
| def GetSubject(self): |
| return self._gerrit.GetChangeInfo(self._issue)['subject'] |
| |
| def GetDescription(self): |
| return self._gerrit.GetChangeDescription(self._issue) |
| |
| def IsDryRun(self): |
| return self._gerrit.GetChangeInfo( |
| self._issue)['labels']['Commit-Queue'].get('value', 0) == 1 |
| |
| def GetReviewers(self): |
| code_review_label = ( |
| self._gerrit.GetChangeInfo(self._issue)['labels']['Code-Review']) |
| return [r['email'] for r in code_review_label.get('all', [])] |
| |
| def GetApprovers(self): |
| approvers = [] |
| code_review_label = ( |
| self._gerrit.GetChangeInfo(self._issue)['labels']['Code-Review']) |
| for m in code_review_label.get('all', []): |
| if m.get("value") == 1: |
| approvers.append(m["email"]) |
| return approvers |
| |
| |
| def _CheckOwnerIsInAuthorsFile(input_api, output_api): |
| results = [] |
| if input_api.change.issue: |
| cr = CodeReview(input_api) |
| |
| owner_email = cr.GetOwnerEmail() |
| |
| # Service accounts don't need to be in AUTHORS. |
| for suffix in SERVICE_ACCOUNT_SUFFIX: |
| if owner_email.endswith(suffix): |
| return results |
| |
| try: |
| authors_content = '' |
| for line in open(AUTHORS_FILE_NAME): |
| if not line.startswith('#'): |
| authors_content += line |
| email_fnmatches = re.findall('<(.*)>', authors_content) |
| for email_fnmatch in email_fnmatches: |
| if fnmatch.fnmatch(owner_email, email_fnmatch): |
| # Found a match, the user is in the AUTHORS file break out of the loop |
| break |
| else: |
| results.append( |
| output_api.PresubmitError( |
| 'The email %s is not in Skia\'s AUTHORS file.\n' |
| 'Issue owner, this CL must include an addition to the Skia AUTHORS ' |
| 'file.' |
| % owner_email)) |
| except IOError: |
| # Do not fail if authors file cannot be found. |
| traceback.print_exc() |
| input_api.logging.error('AUTHORS file not found!') |
| |
| return results |
| |
| |
| def _CheckLGTMsForPublicAPI(input_api, output_api): |
| """Check LGTMs for public API changes. |
| |
| For public API files make sure there is an LGTM from the list of owners in |
| PUBLIC_API_OWNERS. |
| """ |
| results = [] |
| requires_owner_check = False |
| for affected_file in input_api.AffectedFiles(): |
| affected_file_path = affected_file.LocalPath() |
| file_path, file_ext = os.path.splitext(affected_file_path) |
| # We only care about files that end in .h and are under the top-level |
| # include dir, but not include/private. |
| if (file_ext == '.h' and |
| 'include' == file_path.split(os.path.sep)[0] and |
| 'private' not in file_path): |
| requires_owner_check = True |
| |
| if not requires_owner_check: |
| return results |
| |
| lgtm_from_owner = False |
| if input_api.change.issue: |
| cr = CodeReview(input_api) |
| |
| if re.match(REVERT_CL_SUBJECT_PREFIX, cr.GetSubject(), re.I): |
| # It is a revert CL, ignore the public api owners check. |
| return results |
| |
| if cr.IsDryRun(): |
| # Ignore public api owners check for dry run CLs since they are not |
| # going to be committed. |
| return results |
| |
| if input_api.gerrit: |
| for reviewer in cr.GetReviewers(): |
| if reviewer in PUBLIC_API_OWNERS: |
| # If an owner is specified as an reviewer in Gerrit then ignore the |
| # public api owners check. |
| return results |
| else: |
| match = re.search(r'^TBR=(.*)$', cr.GetDescription(), re.M) |
| if match: |
| tbr_section = match.group(1).strip().split(' ')[0] |
| tbr_entries = tbr_section.split(',') |
| for owner in PUBLIC_API_OWNERS: |
| if owner in tbr_entries or owner.split('@')[0] in tbr_entries: |
| # If an owner is specified in the TBR= line then ignore the public |
| # api owners check. |
| return results |
| |
| if cr.GetOwnerEmail() in PUBLIC_API_OWNERS: |
| # An owner created the CL that is an automatic LGTM. |
| lgtm_from_owner = True |
| |
| for approver in cr.GetApprovers(): |
| if approver in PUBLIC_API_OWNERS: |
| # Found an lgtm in a message from an owner. |
| lgtm_from_owner = True |
| break |
| |
| if not lgtm_from_owner: |
| results.append( |
| output_api.PresubmitError( |
| "If this CL adds to or changes Skia's public API, you need an LGTM " |
| "from any of %s. If this CL only removes from or doesn't change " |
| "Skia's public API, please add a short note to the CL saying so. " |
| "Add one of the owners as a reviewer to your CL as well as to the " |
| "TBR= line. If you don't know if this CL affects Skia's public " |
| "API, treat it like it does." % str(PUBLIC_API_OWNERS))) |
| return results |
| |
| |
| def _FooterExists(footers, key, value): |
| for k, v in footers: |
| if k == key and v == value: |
| return True |
| return False |
| |
| |
| def PostUploadHook(cl, change, output_api): |
| """git cl upload will call this hook after the issue is created/modified. |
| |
| This hook does the following: |
| * Adds a link to preview docs changes if there are any docs changes in the CL. |
| * Adds 'No-Try: true' if the CL contains only docs changes. |
| """ |
| |
| results = [] |
| atleast_one_docs_change = False |
| all_docs_changes = True |
| for affected_file in change.AffectedFiles(): |
| affected_file_path = affected_file.LocalPath() |
| file_path, _ = os.path.splitext(affected_file_path) |
| if 'site' == file_path.split(os.path.sep)[0]: |
| atleast_one_docs_change = True |
| else: |
| all_docs_changes = False |
| if atleast_one_docs_change and not all_docs_changes: |
| break |
| |
| issue = cl.issue |
| if issue: |
| # Skip PostUploadHooks for all auto-commit service account bots. New |
| # patchsets (caused due to PostUploadHooks) invalidates the CQ+2 vote from |
| # the "--use-commit-queue" flag to "git cl upload". |
| for suffix in SERVICE_ACCOUNT_SUFFIX: |
| if cl.GetIssueOwner().endswith(suffix): |
| return results |
| |
| original_description_lines, footers = cl.GetDescriptionFooters() |
| new_description_lines = list(original_description_lines) |
| |
| # If the change includes only doc changes then add No-Try: true in the |
| # CL's description if it does not exist yet. |
| if all_docs_changes and not _FooterExists(footers, 'No-Try', 'true'): |
| new_description_lines.append('No-Try: true') |
| results.append( |
| output_api.PresubmitNotifyResult( |
| 'This change has only doc changes. Automatically added ' |
| '\'No-Try: true\' to the CL\'s description')) |
| |
| # If there is atleast one docs change then add preview link in the CL's |
| # description if it does not already exist there. |
| docs_preview_link = '%s%s' % (DOCS_PREVIEW_URL, issue) |
| docs_preview_line = 'Docs-Preview: %s' % docs_preview_link |
| if (atleast_one_docs_change and |
| not _FooterExists(footers, 'Docs-Preview', docs_preview_link)): |
| # Automatically add a link to where the docs can be previewed. |
| new_description_lines.append(docs_preview_line) |
| results.append( |
| output_api.PresubmitNotifyResult( |
| 'Automatically added a link to preview the docs changes to the ' |
| 'CL\'s description')) |
| |
| # If the description has changed update it. |
| if new_description_lines != original_description_lines: |
| # Add a new line separating the new contents from the old contents. |
| new_description_lines.insert(len(original_description_lines), '') |
| cl.UpdateDescriptionFooters(new_description_lines, footers) |
| |
| return results |
| |
| |
| def CheckChangeOnCommit(input_api, output_api): |
| """Presubmit checks for the change on commit. |
| |
| The following are the presubmit checks: |
| * Check change has one and only one EOL. |
| * Ensures that the Skia tree is open in |
| http://skia-tree-status.appspot.com/. Shows a warning if it is in 'Caution' |
| state and an error if it is in 'Closed' state. |
| """ |
| results = [] |
| results.extend(_CommonChecks(input_api, output_api)) |
| results.extend( |
| _CheckTreeStatus(input_api, output_api, json_url=( |
| SKIA_TREE_STATUS_URL + '/banner-status?format=json'))) |
| results.extend(_CheckLGTMsForPublicAPI(input_api, output_api)) |
| results.extend(_CheckOwnerIsInAuthorsFile(input_api, output_api)) |
| # Checks for the presence of 'DO NOT''SUBMIT' in CL description and in |
| # content of files. |
| results.extend( |
| input_api.canned_checks.CheckDoNotSubmit(input_api, output_api)) |
| return results |