#!/usr/bin/env python # 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. import argparse import collections import logging import os import re import subprocess import sys import time extra_cq_trybots = [ { "mastername": "tryserver.chromium.win", "buildernames": ["win_optional_gpu_tests_rel"] }, { "mastername": "tryserver.chromium.mac", "buildernames": ["mac_optional_gpu_tests_rel"] }, { "mastername": "tryserver.chromium.linux", "buildernames": ["linux_optional_gpu_tests_rel"] } ] extra_fyi_trybots = [ { "mastername": "tryserver.chromium.win", "buildernames": ["win_clang_dbg"] } ] 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() import roll_dep_svn from gclient import GClientKeywords from third_party import upload # Avoid depot_tools/third_party/upload.py print verbose messages. upload.verbosity = 0 # Errors only. CHROMIUM_GIT_URL = 'https://chromium.googlesource.com/chromium/src.git' CL_ISSUE_RE = re.compile('^Issue number: ([0-9]+) \((.*)\)$') RIETVELD_URL_RE = re.compile('^https?://(.*)/(.*)') ROLL_BRANCH_NAME = 'special_angle_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') ANGLE_PATH = os.path.join('third_party', 'angle') CommitInfo = collections.namedtuple('CommitInfo', ['git_commit', 'git_repo_url']) CLInfo = collections.namedtuple('CLInfo', ['issue', 'url', 'rietveld_server']) 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): with open(filename, 'rb') as f: deps_content = f.read() return _ParseDepsDict(deps_content) def _ParseDepsDict(deps_content): local_scope = {} var = GClientKeywords.VarImpl({}, local_scope) global_scope = { 'File': GClientKeywords.FileImpl, 'From': GClientKeywords.FromImpl, 'Var': var.Lookup, 'deps_os': {}, } exec(deps_content, global_scope, local_scope) return local_scope def _GenerateCLDescriptionCommand(angle_current, angle_new, bugs, tbr): 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(',') if angle_current.git_commit != angle_new.git_commit: change_str = GetChangeString(angle_current.git_commit, angle_new.git_commit) changelog_url = GetChangeLogURL(angle_current.git_repo_url, change_str) def GetExtraCQTrybotString(): s = '' for t in extra_cq_trybots: if s: s += ';' s += t['mastername'] + ':' + ','.join(t['buildernames']) return s def GetTBRString(tbr): if not tbr: return '' return 'TBR=' + tbr extra_trybot_args = [] if extra_cq_trybots: extra_trybot_string = GetExtraCQTrybotString() extra_trybot_args = ['-m', 'CQ_INCLUDE_TRYBOTS=' + extra_trybot_string] return [ '-m', 'Roll ANGLE ' + change_str, '-m', '%s' % changelog_url, '-m', GetBugString(bugs), '-m', GetTBRString(tbr), '-m', 'TEST=bots', ] + extra_trybot_args 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' ret = self._RunCommand( ['git', '--no-pager', 'log', revision_range, '--pretty=full', '-1'], working_dir=working_dir) return CommitInfo(_ParseGitCommitHash(ret), git_repo_url) def _GetDepsCommitInfo(self, deps_dict, 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 Rietveld host from the URL. m = RIETVELD_URL_RE.match(url) if not m: logging.error('Cannot parse Rietveld host from URL: %s', url) sys.exit(-1) rietveld_server = m.group(1) return CLInfo(issue_number, url, rietveld_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, angle_current, angle_new): working_dir = os.path.join(self._chromium_src, path_below_src) lines = self._RunCommand( ['git','log', '%s..%s' % (angle_current.git_commit, angle_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 _TriggerExtraTrybots(self, trybots): for trybot in trybots: for builder in trybot['buildernames']: self._RunCommand([ 'git', 'cl', 'try', '-m', trybot['mastername'], '-b', builder]) def PrepareRoll(self, ignore_checks, tbr, should_commit): # TODO(kjellander): use os.path.normcase, os.path.join etc for all paths for # cross platform compatibility. if not ignore_checks: if self._GetCurrentBranchName() != 'master': logging.error('Please checkout the master 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) angle_current = self._GetDepsCommitInfo(deps, ANGLE_PATH) # Find ToT revisions. angle_latest = self._GetCommitInfo(ANGLE_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, ANGLE_PATH, angle_latest) if self._IsTreeClean(): logging.debug('Tree is clean - no changes detected.') self._DeleteRollBranch() else: bugs = self._GetBugList(ANGLE_PATH, angle_current, angle_latest) description = _GenerateCLDescriptionCommand( angle_current, angle_latest, bugs, tbr) logging.debug('Committing changes locally.') self._RunCommand(['git', 'add', '--update', '.']) self._RunCommand(['git', 'commit'] + description) logging.debug('Uploading changes...') self._RunCommand(['git', 'cl', 'upload'], extra_env={'EDITOR': 'true'}) # Kick off tryjobs. base_try_cmd = ['git', 'cl', 'try'] self._RunCommand(base_try_cmd) if extra_cq_trybots: # Run additional tryjobs. # TODO(kbr): this should not be necessary -- the # CQ_INCLUDE_TRYBOTS directive above should handle it. # http://crbug.com/585237 self._TriggerExtraTrybots(extra_cq_trybots) if extra_fyi_trybots: self._TriggerExtraTrybots(extra_fyi_trybots) # Mark the CL to be committed if requested if should_commit: self._RunCommand(['git', 'cl', 'set-commit']) cl_info = self._GetCLInfo() print 'Issue: %d URL: %s' % (cl_info.issue, cl_info.url) # Checkout master again. self._RunCommand(['git', 'checkout', 'master']) 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)) # roll_dep_svn.py relies on cwd being the Chromium checkout, so let's # temporarily change the working directory and then change back. cwd = os.getcwd() os.chdir(os.path.dirname(deps_filename)) roll_dep_svn.update_deps(deps_filename, dep_relative_to_src, dep_name, commit_info.git_commit, '') os.chdir(cwd) def _DeleteRollBranch(self): self._RunCommand(['git', 'checkout', 'master']) 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 = 'master' 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 an ANGLE 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 master branch, dirty workspaces and ' 'the updating of the checkout. Will still delete and create local ' 'Git branches.')) parser.add_argument('--tbr', help='Add a TBR to the commit message.') parser.add_argument('--commit', action='store_true', default=False, help='Submit the roll to the CQ after uploading.') 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.tbr, args.commit) if __name__ == '__main__': sys.exit(main())