зеркало из https://github.com/AvaloniaUI/angle.git
398 строки
16 KiB
Python
398 строки
16 KiB
Python
# Copyright 2019 The ANGLE Project 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 code generation.
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See http://dev.chromium.org/developers/how-tos/depottools/presubmit-scripts
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for more details on the presubmit API built into depot_tools.
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"""
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import os
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import re
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import shutil
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import subprocess
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import sys
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import tempfile
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# Fragment of a regular expression that matches C++ and Objective-C++ implementation files and headers.
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_IMPLEMENTATION_AND_HEADER_EXTENSIONS = r'\.(cc|cpp|cxx|mm|h|hpp|hxx)$'
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# Fragment of a regular expression that matches C++ and Objective-C++ header files.
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_HEADER_EXTENSIONS = r'\.(h|hpp|hxx)$'
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_PRIMARY_EXPORT_TARGETS = [
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'//:libEGL',
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'//:libGLESv1_CM',
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'//:libGLESv2',
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'//:translator',
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]
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def _CheckCommitMessageFormatting(input_api, output_api):
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def _IsLineBlank(line):
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return line.isspace() or line == ""
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def _PopBlankLines(lines, reverse=False):
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if reverse:
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while len(lines) > 0 and _IsLineBlank(lines[-1]):
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lines.pop()
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else:
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while len(lines) > 0 and _IsLineBlank(lines[0]):
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lines.pop(0)
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def _IsTagLine(line):
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return ":" in line
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def _SplitIntoMultipleCommits(description_text):
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paragraph_split_pattern = r"((?m)^\s*$\n)"
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multiple_paragraphs = re.split(paragraph_split_pattern, description_text)
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multiple_commits = [""]
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change_id_pattern = re.compile(r"(?m)^Change-Id: [a-zA-Z0-9]*$")
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for paragraph in multiple_paragraphs:
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multiple_commits[-1] += paragraph
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if change_id_pattern.search(paragraph):
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multiple_commits.append("")
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if multiple_commits[-1] == "":
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multiple_commits.pop()
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return multiple_commits
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def _CheckTabInCommit(lines):
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return all([line.find("\t") == -1 for line in lines])
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whitelist_strings = ['Revert "', 'Roll ', 'Reland ', 'Re-land ']
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summary_linelength_warning_lower_limit = 65
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summary_linelength_warning_upper_limit = 70
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description_linelength_limit = 72
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git_output = input_api.change.DescriptionText()
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multiple_commits = _SplitIntoMultipleCommits(git_output)
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errors = []
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for k in range(len(multiple_commits)):
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commit_msg_lines = multiple_commits[k].splitlines()
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commit_number = len(multiple_commits) - k
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commit_tag = "Commit " + str(commit_number) + ":"
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commit_msg_line_numbers = {}
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for i in range(len(commit_msg_lines)):
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commit_msg_line_numbers[commit_msg_lines[i]] = i + 1
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_PopBlankLines(commit_msg_lines, True)
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_PopBlankLines(commit_msg_lines, False)
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whitelisted = False
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if len(commit_msg_lines) > 0:
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for whitelist_string in whitelist_strings:
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if commit_msg_lines[0].startswith(whitelist_string):
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whitelisted = True
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break
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if whitelisted:
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continue
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if not _CheckTabInCommit(commit_msg_lines):
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errors.append(
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output_api.PresubmitError(commit_tag + "Tabs are not allowed in commit message."))
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# the tags paragraph is at the end of the message
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# the break between the tags paragraph is the first line without ":"
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# this is sufficient because if a line is blank, it will not have ":"
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last_paragraph_line_count = 0
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while len(commit_msg_lines) > 0 and _IsTagLine(commit_msg_lines[-1]):
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last_paragraph_line_count += 1
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commit_msg_lines.pop()
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if last_paragraph_line_count == 0:
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errors.append(
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output_api.PresubmitError(
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commit_tag +
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"Please ensure that there are tags (e.g., Bug:, Test:) in your description."))
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if len(commit_msg_lines) > 0:
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if not _IsLineBlank(commit_msg_lines[-1]):
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output_api.PresubmitError(commit_tag +
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"Please ensure that there exists 1 blank line " +
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"between tags and description body.")
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else:
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# pop the blank line between tag paragraph and description body
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commit_msg_lines.pop()
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if len(commit_msg_lines) > 0 and _IsLineBlank(commit_msg_lines[-1]):
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errors.append(
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output_api.PresubmitError(
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commit_tag + 'Please ensure that there exists only 1 blank line '
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'between tags and description body.'))
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# pop all the remaining blank lines between tag and description body
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_PopBlankLines(commit_msg_lines, True)
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if len(commit_msg_lines) == 0:
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errors.append(
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output_api.PresubmitError(commit_tag +
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'Please ensure that your description summary'
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' and description body are not blank.'))
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continue
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if summary_linelength_warning_lower_limit <= len(commit_msg_lines[0]) \
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<= summary_linelength_warning_upper_limit:
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errors.append(
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output_api.PresubmitPromptWarning(
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commit_tag + "Your description summary should be on one line of " +
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str(summary_linelength_warning_lower_limit - 1) + " or less characters."))
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elif len(commit_msg_lines[0]) > summary_linelength_warning_upper_limit:
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errors.append(
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output_api.PresubmitError(
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commit_tag + "Please ensure that your description summary is on one line of " +
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str(summary_linelength_warning_lower_limit - 1) + " or less characters."))
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commit_msg_lines.pop(0) # get rid of description summary
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if len(commit_msg_lines) == 0:
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continue
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if not _IsLineBlank(commit_msg_lines[0]):
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errors.append(
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output_api.PresubmitError(commit_tag +
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'Please ensure the summary is only 1 line and '
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'there is 1 blank line between the summary '
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'and description body.'))
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else:
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commit_msg_lines.pop(0) # pop first blank line
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if len(commit_msg_lines) == 0:
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continue
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if _IsLineBlank(commit_msg_lines[0]):
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errors.append(
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output_api.PresubmitError(commit_tag +
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'Please ensure that there exists only 1 blank line '
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'between description summary and description body.'))
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# pop all the remaining blank lines between
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# description summary and description body
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_PopBlankLines(commit_msg_lines)
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# loop through description body
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while len(commit_msg_lines) > 0:
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line = commit_msg_lines.pop(0)
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# lines starting with 4 spaces or lines without space(urls)
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# are exempt from length check
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if line.startswith(" ") or " " not in line:
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continue
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if len(line) > description_linelength_limit:
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errors.append(
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output_api.PresubmitError(
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commit_tag + 'Line ' + str(commit_msg_line_numbers[line]) +
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' is too long.\n' + '"' + line + '"\n' + 'Please wrap it to ' +
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str(description_linelength_limit) + ' characters. ' +
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"Lines without spaces or lines starting with 4 spaces are exempt."))
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break
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return errors
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def _CheckChangeHasBugField(input_api, output_api):
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"""Requires that the changelist have a Bug: field from a known project."""
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bugs = input_api.change.BugsFromDescription()
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if not bugs:
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return [
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output_api.PresubmitError('Please ensure that your description contains:\n'
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'"Bug: angleproject:[bug number]"\n'
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'directly above the Change-Id tag.')
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]
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# The bug must be in the form of "project:number". None is also accepted, which is used by
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# rollers as well as in very minor changes.
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if len(bugs) == 1 and bugs[0] == 'None':
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return []
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projects = ['angleproject:', 'chromium:', 'dawn:', 'fuchsia:', 'skia:', 'swiftshader:', 'b/']
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bug_regex = re.compile(r"([a-z]+[:/])(\d+)")
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errors = []
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extra_help = None
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for bug in bugs:
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if bug == 'None':
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errors.append(
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output_api.PresubmitError('Invalid bug tag "None" in presence of other bug tags.'))
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continue
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match = re.match(bug_regex, bug)
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if match == None or bug != match.group(0) or match.group(1) not in projects:
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errors.append(output_api.PresubmitError('Incorrect bug tag "' + bug + '".'))
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if not extra_help:
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extra_help = output_api.PresubmitError('Acceptable format is:\n\n'
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' Bug: project:bugnumber\n\n'
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'Acceptable projects are:\n\n ' +
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'\n '.join(projects))
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if extra_help:
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errors.append(extra_help)
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return errors
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def _CheckCodeGeneration(input_api, output_api):
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class Msg(output_api.PresubmitError):
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"""Specialized error message"""
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def __init__(self, message):
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super(output_api.PresubmitError, self).__init__(
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message,
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long_text='Please ensure your ANGLE repositiory is synced to tip-of-tree\n'
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'and all ANGLE DEPS are fully up-to-date by running gclient sync.\n'
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'\n'
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'If that fails, run scripts/run_code_generation.py to refresh generated hashes.\n'
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'\n'
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'If you are building ANGLE inside Chromium you must bootstrap ANGLE\n'
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'before gclient sync. See the DevSetup documentation for more details.\n')
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code_gen_path = input_api.os_path.join(input_api.PresubmitLocalPath(),
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'scripts/run_code_generation.py')
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cmd_name = 'run_code_generation'
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cmd = [input_api.python_executable, code_gen_path, '--verify-no-dirty']
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test_cmd = input_api.Command(name=cmd_name, cmd=cmd, kwargs={}, message=Msg)
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if input_api.verbose:
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print('Running ' + cmd_name)
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return input_api.RunTests([test_cmd])
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# Taken directly from Chromium's PRESUBMIT.py
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def _CheckNewHeaderWithoutGnChange(input_api, output_api):
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"""Checks that newly added header files have corresponding GN changes.
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Note that this is only a heuristic. To be precise, run script:
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build/check_gn_headers.py.
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"""
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def headers(f):
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return input_api.FilterSourceFile(f, white_list=(r'.+%s' % _HEADER_EXTENSIONS,))
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new_headers = []
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for f in input_api.AffectedSourceFiles(headers):
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if f.Action() != 'A':
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continue
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new_headers.append(f.LocalPath())
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def gn_files(f):
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return input_api.FilterSourceFile(f, white_list=(r'.+\.gn',))
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all_gn_changed_contents = ''
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for f in input_api.AffectedSourceFiles(gn_files):
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for _, line in f.ChangedContents():
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all_gn_changed_contents += line
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problems = []
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for header in new_headers:
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basename = input_api.os_path.basename(header)
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if basename not in all_gn_changed_contents:
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problems.append(header)
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if problems:
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return [
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output_api.PresubmitPromptWarning(
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'Missing GN changes for new header files',
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items=sorted(problems),
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long_text='Please double check whether newly added header files need '
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'corresponding changes in gn or gni files.\nThis checking is only a '
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'heuristic. Run build/check_gn_headers.py to be precise.\n'
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'Read https://crbug.com/661774 for more info.')
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]
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return []
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def _CheckExportValidity(input_api, output_api):
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outdir = tempfile.mkdtemp()
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# shell=True is necessary on Windows, as otherwise subprocess fails to find
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# either 'gn' or 'vpython3' even if they are findable via PATH.
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use_shell = input_api.is_windows
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try:
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try:
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subprocess.check_output(['gn', 'gen', outdir], shell=use_shell)
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except subprocess.CalledProcessError as e:
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return [
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output_api.PresubmitError(
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'Unable to run gn gen for export_targets.py: %s' % e.output)
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]
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export_target_script = os.path.join(input_api.PresubmitLocalPath(), 'scripts',
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'export_targets.py')
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try:
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subprocess.check_output(
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['vpython3', export_target_script, outdir] + _PRIMARY_EXPORT_TARGETS,
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stderr=subprocess.STDOUT,
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shell=use_shell)
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except subprocess.CalledProcessError as e:
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if input_api.is_committing:
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return [output_api.PresubmitError('export_targets.py failed: %s' % e.output)]
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return [
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output_api.PresubmitPromptWarning(
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'export_targets.py failed, this may just be due to your local checkout: %s' %
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e.output)
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]
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return []
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finally:
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shutil.rmtree(outdir)
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def _CheckTabsInSourceFiles(input_api, output_api):
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"""Forbids tab characters in source files due to a WebKit repo requirement. """
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def implementation_and_headers(f):
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return input_api.FilterSourceFile(
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f, white_list=(r'.+%s' % _IMPLEMENTATION_AND_HEADER_EXTENSIONS,))
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files_with_tabs = []
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for f in input_api.AffectedSourceFiles(implementation_and_headers):
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for (num, line) in f.ChangedContents():
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if '\t' in line:
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files_with_tabs.append(f)
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break
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if files_with_tabs:
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return [
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output_api.PresubmitError(
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'Tab characters in source files.',
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items=sorted(files_with_tabs),
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long_text=
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'Tab characters are forbidden in ANGLE source files because WebKit\'s Subversion\n'
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'repository does not allow tab characters in source files.\n'
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'Please remove tab characters from these files.')
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]
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return []
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# https://stackoverflow.com/a/196392
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def is_ascii(s):
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return all(ord(c) < 128 for c in s)
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def _CheckNonAsciiInSourceFiles(input_api, output_api):
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"""Forbids non-ascii characters in source files. """
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def implementation_and_headers(f):
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return input_api.FilterSourceFile(
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f, white_list=(r'.+%s' % _IMPLEMENTATION_AND_HEADER_EXTENSIONS,))
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files_with_non_ascii = []
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for f in input_api.AffectedSourceFiles(implementation_and_headers):
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for (num, line) in f.ChangedContents():
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if not is_ascii(line):
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files_with_non_ascii.append("%s: %s" % (f, line))
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break
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if files_with_non_ascii:
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return [
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output_api.PresubmitError(
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'Non-ASCII characters in source files.',
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items=sorted(files_with_non_ascii),
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long_text='Non-ASCII characters are forbidden in ANGLE source files.\n'
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'Please remove non-ASCII characters from these files.')
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]
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return []
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def CheckChangeOnUpload(input_api, output_api):
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results = []
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results.extend(_CheckTabsInSourceFiles(input_api, output_api))
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results.extend(_CheckNonAsciiInSourceFiles(input_api, output_api))
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results.extend(_CheckCodeGeneration(input_api, output_api))
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results.extend(_CheckChangeHasBugField(input_api, output_api))
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results.extend(input_api.canned_checks.CheckChangeHasDescription(input_api, output_api))
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results.extend(_CheckNewHeaderWithoutGnChange(input_api, output_api))
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results.extend(_CheckExportValidity(input_api, output_api))
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results.extend(
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input_api.canned_checks.CheckPatchFormatted(
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input_api, output_api, result_factory=output_api.PresubmitError))
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results.extend(_CheckCommitMessageFormatting(input_api, output_api))
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return results
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def CheckChangeOnCommit(input_api, output_api):
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return CheckChangeOnUpload(input_api, output_api)
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