зеркало из https://github.com/mozilla/gecko-dev.git
204 строки
8.1 KiB
Python
204 строки
8.1 KiB
Python
# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this
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# file, # You can obtain one at http://mozilla.org/MPL/2.0/.
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from __future__ import absolute_import, unicode_literals
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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 logging
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from mach.decorators import (
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CommandArgument,
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CommandProvider,
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Command,
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)
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from mozbuild.base import MachCommandBase
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import mozpack.path as mozpath
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import json
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GITHUB_ROOT = 'https://github.com/'
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PR_REPOSITORIES = {
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'webrender': {
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'github': 'servo/webrender',
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'path': 'gfx/wr',
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'bugzilla_product': 'Core',
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'bugzilla_component': 'Graphics: WebRender',
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},
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'webgpu': {
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'github': 'gfx-rs/wgpu',
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'path': 'gfx/wgpu',
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'bugzilla_product': 'Core',
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'bugzilla_component': 'Graphics: WebGPU',
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},
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'debugger': {
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'github': 'firefox-devtools/debugger',
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'path': 'devtools/client/debugger',
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'bugzilla_product': 'DevTools',
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'bugzilla_component': 'Debugger'
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},
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}
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@CommandProvider
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class PullRequestImporter(MachCommandBase):
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@Command('import-pr', category='misc',
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description='Import a pull request from Github to the local repo.')
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@CommandArgument('-b', '--bug-number',
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help='Bug number to use in the commit messages.')
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@CommandArgument('-t', '--bugzilla-token',
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help='Bugzilla API token used to file a new bug if no bug number is '
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'provided.')
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@CommandArgument('-r', '--reviewer',
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help='Reviewer nick to apply to commit messages.')
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@CommandArgument('pull_request',
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help='URL to the pull request to import (e.g. '
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'https://github.com/servo/webrender/pull/3665).')
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def import_pr(self, pull_request, bug_number=None, bugzilla_token=None, reviewer=None):
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import requests
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pr_number = None
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repository = None
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for r in PR_REPOSITORIES.values():
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if pull_request.startswith(GITHUB_ROOT + r['github'] + '/pull/'):
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# sanitize URL, dropping anything after the PR number
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pr_number = int(re.search('/pull/([0-9]+)', pull_request).group(1))
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pull_request = GITHUB_ROOT + r['github'] + '/pull/' + str(pr_number)
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repository = r
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break
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if repository is None:
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self.log(logging.ERROR, 'unrecognized_repo', {},
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'The pull request URL was not recognized; add it to the list of '
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'recognized repos in PR_REPOSITORIES in %s' % __file__)
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sys.exit(1)
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self.log(logging.INFO, 'import_pr', {'pr_url': pull_request},
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'Attempting to import {pr_url}')
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dirty = [f for f in self.repository.get_changed_files(mode='all')
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if f.startswith(repository['path'])]
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if dirty:
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self.log(logging.ERROR, 'dirty_tree', repository,
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'Local {path} tree is dirty; aborting!')
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sys.exit(1)
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target_dir = mozpath.join(self.topsrcdir, os.path.normpath(repository['path']))
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if bug_number is None:
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if bugzilla_token is None:
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self.log(logging.WARNING, 'no_token', {},
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'No bug number or bugzilla API token provided; bug number will not '
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'be added to commit messages.')
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else:
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bug_number = self._file_bug(bugzilla_token, repository, pr_number)
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elif bugzilla_token is not None:
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self.log(logging.WARNING, 'too_much_bug', {},
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'Providing a bugzilla token is unnecessary when a bug number is provided. '
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'Using bug number; ignoring token.')
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pr_patch = requests.get(pull_request + '.patch')
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pr_patch.raise_for_status()
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for patch in self._split_patches(pr_patch.content, bug_number, pull_request, reviewer):
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self.log(logging.INFO, 'commit_msg', patch,
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'Processing commit [{commit_summary}] by [{author}] at [{date}]')
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patch_cmd = subprocess.Popen(['patch', '-p1', '-s'], stdin=subprocess.PIPE,
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cwd=target_dir)
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patch_cmd.stdin.write(patch['diff'])
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patch_cmd.stdin.close()
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patch_cmd.wait()
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if patch_cmd.returncode != 0:
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self.log(logging.ERROR, 'commit_fail', {},
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'Error applying diff from commit via "patch -p1 -s". Aborting...')
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sys.exit(patch_cmd.returncode)
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self.repository.commit(patch['commit_msg'], patch['author'], patch['date'],
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[target_dir])
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self.log(logging.INFO, 'commit_pass', {},
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'Committed successfully.')
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def _file_bug(self, token, repo, pr_number):
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import requests
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bug = requests.post('https://bugzilla.mozilla.org/rest/bug?api_key=%s' % token,
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json={
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'product': repo['bugzilla_product'],
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'component': repo['bugzilla_component'],
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'summary': 'Land %s#%s in mozilla-central' %
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(repo['github'], pr_number),
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'version': 'unspecified',
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})
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bug.raise_for_status()
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self.log(logging.DEBUG, 'new_bug', {}, bug.content)
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bugnumber = json.loads(bug.content)['id']
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self.log(logging.INFO, 'new_bug', {'bugnumber': bugnumber},
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'Filed bug {bugnumber}')
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return bugnumber
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def _split_patches(self, patchfile, bug_number, pull_request, reviewer):
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INITIAL = 0
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COMMIT_MESSAGE_SUMMARY = 1
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COMMIT_MESSAGE_BODY = 2
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COMMIT_DIFF = 3
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state = INITIAL
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for line in patchfile.splitlines():
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if state == INITIAL:
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if line.startswith('From: '):
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author = line[6:]
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elif line.startswith('Date: '):
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date = line[6:]
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elif line.startswith('Subject: '):
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line = line[9:]
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bug_prefix = ''
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if bug_number is not None:
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bug_prefix = 'Bug %s - ' % bug_number
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commit_msg = re.sub(r'^\[PATCH[0-9 /]*\] ', bug_prefix, line)
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state = COMMIT_MESSAGE_SUMMARY
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elif state == COMMIT_MESSAGE_SUMMARY:
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if len(line) > 0 and line[0] == ' ':
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# Subject line has wrapped
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commit_msg += line
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else:
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if reviewer is not None:
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commit_msg += ' r=' + reviewer
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commit_summary = commit_msg
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commit_msg += '\n' + line + '\n'
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state = COMMIT_MESSAGE_BODY
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elif state == COMMIT_MESSAGE_BODY:
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if line == '---':
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commit_msg += '[import_pr] From ' + pull_request + '\n'
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state = COMMIT_DIFF
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diff = ''
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else:
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commit_msg += line + '\n'
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elif state == COMMIT_DIFF:
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if line.startswith('From '):
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patch = {
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'author': author,
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'date': date,
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'commit_summary': commit_summary,
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'commit_msg': commit_msg,
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'diff': diff,
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}
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yield patch
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state = INITIAL
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else:
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diff += line + '\n'
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if state != COMMIT_DIFF:
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self.log(logging.ERROR, 'unexpected_eof', {},
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'Unexpected EOF found while importing patchfile')
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sys.exit(1)
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patch = {
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'author': author,
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'date': date,
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'commit_summary': commit_summary,
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'commit_msg': commit_msg,
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'diff': diff,
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}
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yield patch
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