385 lines
14 KiB
Python
385 lines
14 KiB
Python
# Copyright (c) 2013 The Chromium Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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"""Top-level presubmit script for Skia.
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See http://dev.chromium.org/developers/how-tos/depottools/presubmit-scripts
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for more details about the presubmit API built into gcl.
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"""
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import fnmatch
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import os
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import re
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import subprocess
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import sys
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import traceback
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REVERT_CL_SUBJECT_PREFIX = 'Revert '
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SKIA_TREE_STATUS_URL = 'http://skia-tree-status.appspot.com'
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# Please add the complete email address here (and not just 'xyz@' or 'xyz').
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PUBLIC_API_OWNERS = (
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'reed@chromium.org',
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'reed@google.com',
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'bsalomon@chromium.org',
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'bsalomon@google.com',
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'djsollen@chromium.org',
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'djsollen@google.com',
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)
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AUTHORS_FILE_NAME = 'AUTHORS'
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DOCS_PREVIEW_URL = 'https://skia.org/?cl='
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def _CheckChangeHasEol(input_api, output_api, source_file_filter=None):
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"""Checks that files end with atleast one \n (LF)."""
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eof_files = []
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for f in input_api.AffectedSourceFiles(source_file_filter):
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contents = input_api.ReadFile(f, 'rb')
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# Check that the file ends in atleast one newline character.
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if len(contents) > 1 and contents[-1:] != '\n':
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eof_files.append(f.LocalPath())
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if eof_files:
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return [output_api.PresubmitPromptWarning(
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'These files should end in a newline character:',
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items=eof_files)]
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return []
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def _PythonChecks(input_api, output_api):
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"""Run checks on any modified Python files."""
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pylint_disabled_warnings = (
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'F0401', # Unable to import.
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'E0611', # No name in module.
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'W0232', # Class has no __init__ method.
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'E1002', # Use of super on an old style class.
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'W0403', # Relative import used.
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'R0201', # Method could be a function.
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'E1003', # Using class name in super.
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'W0613', # Unused argument.
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)
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# Run Pylint on only the modified python files. Unfortunately it still runs
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# Pylint on the whole file instead of just the modified lines.
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affected_python_files = []
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for affected_file in input_api.AffectedSourceFiles(None):
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affected_file_path = affected_file.LocalPath()
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if affected_file_path.endswith('.py'):
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affected_python_files.append(affected_file_path)
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return input_api.canned_checks.RunPylint(
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input_api, output_api,
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disabled_warnings=pylint_disabled_warnings,
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white_list=affected_python_files)
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def _IfDefChecks(input_api, output_api):
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"""Ensures if/ifdef are not before includes. See skbug/3362 for details."""
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comment_block_start_pattern = re.compile('^\s*\/\*.*$')
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comment_block_middle_pattern = re.compile('^\s+\*.*')
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comment_block_end_pattern = re.compile('^\s+\*\/.*$')
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single_line_comment_pattern = re.compile('^\s*//.*$')
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def is_comment(line):
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return (comment_block_start_pattern.match(line) or
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comment_block_middle_pattern.match(line) or
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comment_block_end_pattern.match(line) or
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single_line_comment_pattern.match(line))
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empty_line_pattern = re.compile('^\s*$')
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def is_empty_line(line):
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return empty_line_pattern.match(line)
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failing_files = []
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for affected_file in input_api.AffectedSourceFiles(None):
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affected_file_path = affected_file.LocalPath()
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if affected_file_path.endswith('.cpp') or affected_file_path.endswith('.h'):
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f = open(affected_file_path)
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for line in f.xreadlines():
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if is_comment(line) or is_empty_line(line):
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continue
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# The below will be the first real line after comments and newlines.
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if line.startswith('#if 0 '):
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pass
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elif line.startswith('#if ') or line.startswith('#ifdef '):
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failing_files.append(affected_file_path)
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break
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results = []
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if failing_files:
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results.append(
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output_api.PresubmitError(
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'The following files have #if or #ifdef before includes:\n%s\n\n'
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'See skbug.com/3362 for why this should be fixed.' %
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'\n'.join(failing_files)))
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return results
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def _CommonChecks(input_api, output_api):
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"""Presubmit checks common to upload and commit."""
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results = []
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sources = lambda x: (x.LocalPath().endswith('.h') or
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x.LocalPath().endswith('.gypi') or
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x.LocalPath().endswith('.gyp') or
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x.LocalPath().endswith('.py') or
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x.LocalPath().endswith('.sh') or
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x.LocalPath().endswith('.cpp'))
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results.extend(
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_CheckChangeHasEol(
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input_api, output_api, source_file_filter=sources))
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results.extend(_PythonChecks(input_api, output_api))
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results.extend(_IfDefChecks(input_api, output_api))
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return results
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def CheckChangeOnUpload(input_api, output_api):
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"""Presubmit checks for the change on upload.
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The following are the presubmit checks:
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* Check change has one and only one EOL.
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"""
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results = []
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results.extend(_CommonChecks(input_api, output_api))
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return results
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def _CheckTreeStatus(input_api, output_api, json_url):
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"""Check whether to allow commit.
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Args:
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input_api: input related apis.
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output_api: output related apis.
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json_url: url to download json style status.
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"""
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tree_status_results = input_api.canned_checks.CheckTreeIsOpen(
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input_api, output_api, json_url=json_url)
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if not tree_status_results:
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# Check for caution state only if tree is not closed.
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connection = input_api.urllib2.urlopen(json_url)
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status = input_api.json.loads(connection.read())
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connection.close()
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if ('caution' in status['message'].lower() and
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os.isatty(sys.stdout.fileno())):
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# Display a prompt only if we are in an interactive shell. Without this
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# check the commit queue behaves incorrectly because it considers
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# prompts to be failures.
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short_text = 'Tree state is: ' + status['general_state']
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long_text = status['message'] + '\n' + json_url
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tree_status_results.append(
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output_api.PresubmitPromptWarning(
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message=short_text, long_text=long_text))
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else:
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# Tree status is closed. Put in message about contacting sheriff.
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connection = input_api.urllib2.urlopen(
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SKIA_TREE_STATUS_URL + '/current-sheriff')
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sheriff_details = input_api.json.loads(connection.read())
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if sheriff_details:
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tree_status_results[0]._message += (
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'\n\nPlease contact the current Skia sheriff (%s) if you are trying '
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'to submit a build fix\nand do not know how to submit because the '
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'tree is closed') % sheriff_details['username']
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return tree_status_results
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def _CheckOwnerIsInAuthorsFile(input_api, output_api):
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results = []
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issue = input_api.change.issue
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if issue and input_api.rietveld:
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issue_properties = input_api.rietveld.get_issue_properties(
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issue=int(issue), messages=False)
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owner_email = issue_properties['owner_email']
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try:
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authors_content = ''
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for line in open(AUTHORS_FILE_NAME):
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if not line.startswith('#'):
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authors_content += line
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email_fnmatches = re.findall('<(.*)>', authors_content)
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for email_fnmatch in email_fnmatches:
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if fnmatch.fnmatch(owner_email, email_fnmatch):
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# Found a match, the user is in the AUTHORS file break out of the loop
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break
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else:
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# TODO(rmistry): Remove the below CLA messaging once a CLA checker has
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# been added to the CQ.
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results.append(
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output_api.PresubmitError(
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'The email %s is not in Skia\'s AUTHORS file.\n'
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'Issue owner, this CL must include an addition to the Skia AUTHORS '
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'file.\n'
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'Googler reviewers, please check that the AUTHORS entry '
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'corresponds to an email address in http://goto/cla-signers. If it '
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'does not then ask the issue owner to sign the CLA at '
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'https://developers.google.com/open-source/cla/individual '
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'(individual) or '
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'https://developers.google.com/open-source/cla/corporate '
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'(corporate).'
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% owner_email))
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except IOError:
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# Do not fail if authors file cannot be found.
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traceback.print_exc()
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input_api.logging.error('AUTHORS file not found!')
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return results
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def _CheckLGTMsForPublicAPI(input_api, output_api):
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"""Check LGTMs for public API changes.
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For public API files make sure there is an LGTM from the list of owners in
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PUBLIC_API_OWNERS.
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"""
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results = []
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requires_owner_check = False
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for affected_file in input_api.AffectedFiles():
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affected_file_path = affected_file.LocalPath()
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file_path, file_ext = os.path.splitext(affected_file_path)
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# We only care about files that end in .h and are under the top-level
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# include dir.
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if file_ext == '.h' and 'include' == file_path.split(os.path.sep)[0]:
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requires_owner_check = True
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if not requires_owner_check:
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return results
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lgtm_from_owner = False
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issue = input_api.change.issue
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if issue and input_api.rietveld:
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issue_properties = input_api.rietveld.get_issue_properties(
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issue=int(issue), messages=True)
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if re.match(REVERT_CL_SUBJECT_PREFIX, issue_properties['subject'], re.I):
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# It is a revert CL, ignore the public api owners check.
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return results
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match = re.search(r'^TBR=(.*)$', issue_properties['description'], re.M)
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if match:
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tbr_entries = match.group(1).strip().split(',')
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for owner in PUBLIC_API_OWNERS:
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if owner in tbr_entries or owner.split('@')[0] in tbr_entries:
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# If an owner is specified in the TBR= line then ignore the public
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# api owners check.
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return results
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if issue_properties['owner_email'] in PUBLIC_API_OWNERS:
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# An owner created the CL that is an automatic LGTM.
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lgtm_from_owner = True
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messages = issue_properties.get('messages')
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if messages:
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for message in messages:
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if (message['sender'] in PUBLIC_API_OWNERS and
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'lgtm' in message['text'].lower()):
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# Found an lgtm in a message from an owner.
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lgtm_from_owner = True
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break
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if not lgtm_from_owner:
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results.append(
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output_api.PresubmitError(
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'Since the CL is editing public API, you must have an LGTM from '
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'one of: %s' % str(PUBLIC_API_OWNERS)))
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return results
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def PostUploadHook(cl, change, output_api):
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"""git cl upload will call this hook after the issue is created/modified.
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This hook does the following:
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* Adds a link to preview docs changes if there are any docs changes in the CL.
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* Adds 'NOTRY=true' if the CL contains only docs changes.
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* Adds 'NOTREECHECKS=true' for non master branch changes since they do not
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need to be gated on the master branch's tree.
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* Adds 'NOTRY=true' for non master branch changes since trybots do not yet
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work on them.
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"""
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results = []
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atleast_one_docs_change = False
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all_docs_changes = True
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for affected_file in change.AffectedFiles():
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affected_file_path = affected_file.LocalPath()
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file_path, _ = os.path.splitext(affected_file_path)
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if 'site' == file_path.split(os.path.sep)[0]:
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atleast_one_docs_change = True
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else:
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all_docs_changes = False
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if atleast_one_docs_change and not all_docs_changes:
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break
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issue = cl.issue
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rietveld_obj = cl.RpcServer()
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if issue and rietveld_obj:
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original_description = rietveld_obj.get_description(issue)
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new_description = original_description
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# If the change includes only doc changes then add NOTRY=true in the
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# CL's description if it does not exist yet.
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if all_docs_changes and not re.search(
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r'^NOTRY=true$', new_description, re.M | re.I):
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new_description += '\nNOTRY=true'
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results.append(
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output_api.PresubmitNotifyResult(
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'This change has only doc changes. Automatically added '
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'\'NOTRY=true\' to the CL\'s description'))
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# If there is atleast one docs change then add preview link in the CL's
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# description if it does not already exist there.
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if atleast_one_docs_change and not re.search(
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r'^DOCS_PREVIEW=.*', new_description, re.M | re.I):
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# Automatically add a link to where the docs can be previewed.
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new_description += '\nDOCS_PREVIEW= %s%s' % (DOCS_PREVIEW_URL, issue)
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results.append(
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output_api.PresubmitNotifyResult(
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'Automatically added a link to preview the docs changes to the '
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'CL\'s description'))
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# If the target ref is not master then add NOTREECHECKS=true and NOTRY=true
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# to the CL's description if it does not already exist there.
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target_ref = rietveld_obj.get_issue_properties(issue, False).get(
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'target_ref', '')
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if target_ref != 'refs/heads/master':
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if not re.search(
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r'^NOTREECHECKS=true$', new_description, re.M | re.I):
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new_description += "\nNOTREECHECKS=true"
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results.append(
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output_api.PresubmitNotifyResult(
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'Branch changes do not need to rely on the master branch\'s '
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'tree status. Automatically added \'NOTREECHECKS=true\' to the '
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'CL\'s description'))
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if not re.search(
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r'^NOTRY=true$', new_description, re.M | re.I):
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new_description += "\nNOTRY=true"
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results.append(
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output_api.PresubmitNotifyResult(
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'Trybots do not yet work for non-master branches. '
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'Automatically added \'NOTRY=true\' to the CL\'s description'))
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# If the description has changed update it.
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if new_description != original_description:
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rietveld_obj.update_description(issue, new_description)
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return results
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def CheckChangeOnCommit(input_api, output_api):
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"""Presubmit checks for the change on commit.
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The following are the presubmit checks:
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* Check change has one and only one EOL.
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* Ensures that the Skia tree is open in
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http://skia-tree-status.appspot.com/. Shows a warning if it is in 'Caution'
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state and an error if it is in 'Closed' state.
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"""
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results = []
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results.extend(_CommonChecks(input_api, output_api))
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results.extend(
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_CheckTreeStatus(input_api, output_api, json_url=(
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SKIA_TREE_STATUS_URL + '/banner-status?format=json')))
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results.extend(_CheckLGTMsForPublicAPI(input_api, output_api))
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results.extend(_CheckOwnerIsInAuthorsFile(input_api, output_api))
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return results
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