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- #!/usr/bin/env python3
- # Copyright 2015 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.
- from __future__ import print_function
- import argparse
- import collections
- import logging
- import os
- import re
- import subprocess
- import sys
- import time
- extra_trybots = [
- {
- "mastername": "luci.chromium.try",
- "buildernames": ["win_optional_gpu_tests_rel"]
- },
- {
- "mastername": "luci.chromium.try",
- "buildernames": ["mac_optional_gpu_tests_rel"]
- },
- {
- "mastername": "luci.chromium.try",
- "buildernames": ["linux_optional_gpu_tests_rel"]
- },
- {
- "mastername": "luci.chromium.try",
- "buildernames": ["android_optional_gpu_tests_rel"]
- },
- ]
- SCRIPT_DIR = os.path.dirname(os.path.realpath(__file__))
- SRC_DIR = os.path.abspath(os.path.join(SCRIPT_DIR, os.pardir))
- sys.path.insert(0, os.path.join(SRC_DIR, 'build'))
- import find_depot_tools
- find_depot_tools.add_depot_tools_to_path()
- CHROMIUM_GIT_URL = 'https://chromium.googlesource.com/chromium/src.git'
- CL_ISSUE_RE = re.compile('^Issue number: ([0-9]+) \((.*)\)$')
- REVIEW_URL_RE = re.compile('^https?://(.*)/(.*)')
- ROLL_BRANCH_NAME = 'special_webgl_roll_branch'
- TRYJOB_STATUS_SLEEP_SECONDS = 30
- # Use a shell for subcommands on Windows to get a PATH search.
- IS_WIN = sys.platform.startswith('win')
- WEBGL_PATH = os.path.join('third_party', 'webgl', 'src')
- WEBGL_REVISION_TEXT_FILE = os.path.join(
- 'content', 'test', 'gpu', 'gpu_tests', 'webgl_conformance_revision.txt')
- CommitInfo = collections.namedtuple('CommitInfo', ['git_commit',
- 'git_repo_url'])
- CLInfo = collections.namedtuple('CLInfo', ['issue', 'url', 'review_server'])
- def _VarLookup(local_scope):
- return lambda var_name: local_scope['vars'][var_name]
- def _PosixPath(path):
- """Convert a possibly-Windows path to a posix-style path."""
- (_, path) = os.path.splitdrive(path)
- return path.replace(os.sep, '/')
- def _ParseGitCommitHash(description):
- for line in description.splitlines():
- if line.startswith('commit '):
- return line.split()[1]
- logging.error('Failed to parse git commit id from:\n%s\n', description)
- sys.exit(-1)
- return None
- def _ParseDepsFile(filename):
- logging.debug('Parsing deps file %s', filename)
- with open(filename, 'rb') as f:
- deps_content = f.read()
- return _ParseDepsDict(deps_content)
- def _ParseDepsDict(deps_content):
- local_scope = {}
- global_scope = {
- 'Str': lambda arg: str(arg),
- 'Var': _VarLookup(local_scope),
- 'deps_os': {},
- }
- exec(deps_content, global_scope, local_scope)
- return local_scope
- def _GenerateCLDescriptionCommand(webgl_current, webgl_new, bugs):
- def GetChangeString(current_hash, new_hash):
- return '%s..%s' % (current_hash[0:7], new_hash[0:7]);
- def GetChangeLogURL(git_repo_url, change_string):
- return '%s/+log/%s' % (git_repo_url, change_string)
- def GetBugString(bugs):
- bug_str = 'Bug: '
- for bug in bugs:
- bug_str += str(bug) + ','
- return bug_str.rstrip(',')
- change_str = GetChangeString(webgl_current.git_commit,
- webgl_new.git_commit)
- changelog_url = GetChangeLogURL(webgl_current.git_repo_url,
- change_str)
- if webgl_current.git_commit == webgl_new.git_commit:
- print('WARNING: WebGL repository is unchanged; proceeding with no-op roll')
- def GetExtraTrybotString():
- s = ''
- for t in extra_trybots:
- if s:
- s += ';'
- s += t['mastername'] + ':' + ','.join(t['buildernames'])
- return s
- return ('Roll WebGL %s\n\n'
- '%s\n\n'
- '%s\n'
- 'Cq-Include-Trybots: %s\n') % (
- change_str,
- changelog_url,
- GetBugString(bugs),
- GetExtraTrybotString())
- class AutoRoller(object):
- def __init__(self, chromium_src):
- self._chromium_src = chromium_src
- def _RunCommand(self, command, working_dir=None, ignore_exit_code=False,
- extra_env=None):
- """Runs a command and returns the stdout from that command.
- If the command fails (exit code != 0), the function will exit the process.
- """
- working_dir = working_dir or self._chromium_src
- logging.debug('cmd: %s cwd: %s', ' '.join(command), working_dir)
- env = os.environ.copy()
- if extra_env:
- logging.debug('extra env: %s', extra_env)
- env.update(extra_env)
- p = subprocess.Popen(command, stdout=subprocess.PIPE,
- stderr=subprocess.PIPE, shell=IS_WIN, env=env,
- cwd=working_dir, universal_newlines=True)
- output = p.stdout.read()
- p.wait()
- p.stdout.close()
- p.stderr.close()
- if not ignore_exit_code and p.returncode != 0:
- logging.error('Command failed: %s\n%s', str(command), output)
- sys.exit(p.returncode)
- return output
- def _GetCommitInfo(self, path_below_src, git_hash=None, git_repo_url=None):
- working_dir = os.path.join(self._chromium_src, path_below_src)
- self._RunCommand(['git', 'fetch', 'origin'], working_dir=working_dir)
- revision_range = git_hash or 'origin/main'
- ret = self._RunCommand(
- ['git', '--no-pager', 'log', revision_range,
- '--no-abbrev-commit', '--pretty=full', '-1'],
- working_dir=working_dir)
- parsed_hash = _ParseGitCommitHash(ret)
- logging.debug('parsed Git commit hash: %s', parsed_hash)
- return CommitInfo(parsed_hash, git_repo_url)
- def _GetDepsCommitInfo(self, deps_dict, path_below_src):
- logging.debug('Getting deps commit info for %s', path_below_src)
- entry = deps_dict['deps'][_PosixPath('src/%s' % path_below_src)]
- at_index = entry.find('@')
- git_repo_url = entry[:at_index]
- git_hash = entry[at_index + 1:]
- return self._GetCommitInfo(path_below_src, git_hash, git_repo_url)
- def _GetCLInfo(self):
- cl_output = self._RunCommand(['git', 'cl', 'issue'])
- m = CL_ISSUE_RE.match(cl_output.strip())
- if not m:
- logging.error('Cannot find any CL info. Output was:\n%s', cl_output)
- sys.exit(-1)
- issue_number = int(m.group(1))
- url = m.group(2)
- # Parse the codereview host from the URL.
- m = REVIEW_URL_RE.match(url)
- if not m:
- logging.error('Cannot parse codereview host from URL: %s', url)
- sys.exit(-1)
- review_server = m.group(1)
- return CLInfo(issue_number, url, review_server)
- def _GetCurrentBranchName(self):
- return self._RunCommand(
- ['git', 'rev-parse', '--abbrev-ref', 'HEAD']).splitlines()[0]
- def _IsTreeClean(self):
- lines = self._RunCommand(
- ['git', 'status', '--porcelain', '-uno']).splitlines()
- if len(lines) == 0:
- return True
- logging.debug('Dirty/unversioned files:\n%s', '\n'.join(lines))
- return False
- def _GetBugList(self, path_below_src, webgl_current, webgl_new):
- # TODO(kbr): this isn't useful, at least not yet, when run against
- # the WebGL Github repository.
- working_dir = os.path.join(self._chromium_src, path_below_src)
- lines = self._RunCommand(
- ['git','log',
- '%s..%s' % (webgl_current.git_commit, webgl_new.git_commit)],
- working_dir=working_dir).split('\n')
- bugs = set()
- for line in lines:
- line = line.strip()
- bug_prefix = 'BUG='
- if line.startswith(bug_prefix):
- bugs_strings = line[len(bug_prefix):].split(',')
- for bug_string in bugs_strings:
- try:
- bugs.add(int(bug_string))
- except:
- # skip this, it may be a project specific bug such as
- # "angleproject:X" or an ill-formed BUG= message
- pass
- return bugs
- def _UpdateReadmeFile(self, readme_path, new_revision):
- readme = open(os.path.join(self._chromium_src, readme_path), 'r+')
- txt = readme.read()
- m = re.sub(re.compile('.*^Revision\: ([0-9]*).*', re.MULTILINE),
- ('Revision: %s' % new_revision), txt)
- readme.seek(0)
- readme.write(m)
- readme.truncate()
- def PrepareRoll(self, ignore_checks, run_tryjobs):
- # TODO(kjellander): use os.path.normcase, os.path.join etc for all paths for
- # cross platform compatibility.
- if not ignore_checks:
- if self._GetCurrentBranchName() != 'main':
- logging.error('Please checkout the main branch.')
- return -1
- if not self._IsTreeClean():
- logging.error('Please make sure you don\'t have any modified files.')
- return -1
- # Always clean up any previous roll.
- self.Abort()
- logging.debug('Pulling latest changes')
- if not ignore_checks:
- self._RunCommand(['git', 'pull'])
- self._RunCommand(['git', 'checkout', '-b', ROLL_BRANCH_NAME])
- # Modify Chromium's DEPS file.
- # Parse current hashes.
- deps_filename = os.path.join(self._chromium_src, 'DEPS')
- deps = _ParseDepsFile(deps_filename)
- webgl_current = self._GetDepsCommitInfo(deps, WEBGL_PATH)
- # Find ToT revisions.
- webgl_latest = self._GetCommitInfo(WEBGL_PATH)
- if IS_WIN:
- # Make sure the roll script doesn't use windows line endings
- self._RunCommand(['git', 'config', 'core.autocrlf', 'true'])
- self._UpdateDep(deps_filename, WEBGL_PATH, webgl_latest)
- self._UpdateWebGLRevTextFile(WEBGL_REVISION_TEXT_FILE, webgl_latest)
- if self._IsTreeClean():
- logging.debug('Tree is clean - no changes detected.')
- self._DeleteRollBranch()
- else:
- bugs = self._GetBugList(WEBGL_PATH, webgl_current, webgl_latest)
- description = _GenerateCLDescriptionCommand(
- webgl_current, webgl_latest, bugs)
- logging.debug('Committing changes locally.')
- self._RunCommand(['git', 'add', '--update', '.'])
- self._RunCommand(['git', 'commit', '-m', description])
- logging.debug('Uploading changes...')
- self._RunCommand(['git', 'cl', 'upload'],
- extra_env={'EDITOR': 'true'})
- if run_tryjobs:
- # Kick off tryjobs.
- base_try_cmd = ['git', 'cl', 'try']
- self._RunCommand(base_try_cmd)
- cl_info = self._GetCLInfo()
- print('Issue: %d URL: %s' % (cl_info.issue, cl_info.url))
- # Checkout main again.
- self._RunCommand(['git', 'checkout', 'main'])
- print('Roll branch left as ' + ROLL_BRANCH_NAME)
- return 0
- def _UpdateDep(self, deps_filename, dep_relative_to_src, commit_info):
- dep_name = _PosixPath(os.path.join('src', dep_relative_to_src))
- dep_revision = '%s@%s' % (dep_name, commit_info.git_commit)
- self._RunCommand(
- ['gclient', 'setdep', '-r', dep_revision],
- working_dir=os.path.dirname(deps_filename))
- def _UpdateWebGLRevTextFile(self, txt_filename, commit_info):
- # Rolling the WebGL conformance tests must cause at least all of
- # the WebGL tests to run. There are already exclusions in
- # trybot_analyze_config.json which force all tests to run if
- # changes under src/content/test/gpu are made. (This rule
- # typically only takes effect on the GPU bots.) To make sure this
- # happens all the time, update an autogenerated text file in this
- # directory.
- with open(txt_filename, 'w') as fh:
- print('# AUTOGENERATED FILE - DO NOT EDIT', file=fh)
- print('# SEE roll_webgl_conformance.py', file=fh)
- print('Current webgl revision %s' % commit_info.git_commit, file=fh)
- def _DeleteRollBranch(self):
- self._RunCommand(['git', 'checkout', 'main'])
- self._RunCommand(['git', 'branch', '-D', ROLL_BRANCH_NAME])
- logging.debug('Deleted the local roll branch (%s)', ROLL_BRANCH_NAME)
- def _GetBranches(self):
- """Returns a tuple of active,branches.
- The 'active' is the name of the currently active branch and 'branches' is a
- list of all branches.
- """
- lines = self._RunCommand(['git', 'branch']).split('\n')
- branches = []
- active = ''
- for l in lines:
- if '*' in l:
- # The assumption is that the first char will always be the '*'.
- active = l[1:].strip()
- branches.append(active)
- else:
- b = l.strip()
- if b:
- branches.append(b)
- return (active, branches)
- def Abort(self):
- active_branch, branches = self._GetBranches()
- if active_branch == ROLL_BRANCH_NAME:
- active_branch = 'main'
- if ROLL_BRANCH_NAME in branches:
- print('Aborting pending roll.')
- self._RunCommand(['git', 'checkout', ROLL_BRANCH_NAME])
- # Ignore an error here in case an issue wasn't created for some reason.
- self._RunCommand(['git', 'cl', 'set_close'], ignore_exit_code=True)
- self._RunCommand(['git', 'checkout', active_branch])
- self._RunCommand(['git', 'branch', '-D', ROLL_BRANCH_NAME])
- return 0
- def main():
- parser = argparse.ArgumentParser(
- description='Auto-generates a CL containing a WebGL conformance roll.')
- parser.add_argument('--abort',
- help=('Aborts a previously prepared roll. '
- 'Closes any associated issues and deletes the roll branches'),
- action='store_true')
- parser.add_argument(
- '--ignore-checks',
- action='store_true',
- default=False,
- help=('Skips checks for being on the main branch, dirty workspaces and '
- 'the updating of the checkout. Will still delete and create local '
- 'Git branches.'))
- parser.add_argument('--run-tryjobs', action='store_true', default=False,
- help=('Start the dry-run tryjobs for the newly generated CL. Use this '
- 'when you have no need to make changes to the WebGL conformance '
- 'test expectations in the same CL and want to avoid.'))
- parser.add_argument('-v', '--verbose', action='store_true', default=False,
- help='Be extra verbose in printing of log messages.')
- args = parser.parse_args()
- if args.verbose:
- logging.basicConfig(level=logging.DEBUG)
- else:
- logging.basicConfig(level=logging.ERROR)
- autoroller = AutoRoller(SRC_DIR)
- if args.abort:
- return autoroller.Abort()
- else:
- return autoroller.PrepareRoll(args.ignore_checks, args.run_tryjobs)
- if __name__ == '__main__':
- sys.exit(main())
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