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-rwxr-xr-xtools_libyuv/autoroller/roll_deps.py821
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diff --git a/tools_libyuv/autoroller/roll_deps.py b/tools_libyuv/autoroller/roll_deps.py
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+++ b/tools_libyuv/autoroller/roll_deps.py
@@ -0,0 +1,821 @@
+#!/usr/bin/env vpython3
+
+# Copyright (c) 2017 The LibYUV project authors. All Rights Reserved.
+#
+# Use of this source code is governed by a BSD-style license
+# that can be found in the LICENSE file in the root of the source
+# tree. An additional intellectual property rights grant can be found
+# in the file PATENTS. All contributing project authors may
+# be found in the AUTHORS file in the root of the source tree.
+"""Script to automatically roll dependencies in the LibYUV DEPS file."""
+
+
+import argparse
+import base64
+import collections
+import logging
+import os
+import re
+import subprocess
+import sys
+import urllib.request
+
+
+def FindSrcDirPath():
+ """Returns the abs path to the src/ dir of the project."""
+ src_dir = os.path.dirname(os.path.abspath(__file__))
+ while os.path.basename(src_dir) != 'src':
+ src_dir = os.path.normpath(os.path.join(src_dir, os.pardir))
+ return src_dir
+
+
+# Skip these dependencies (list without solution name prefix).
+DONT_AUTOROLL_THESE = [
+ 'src/third_party/gflags/src',
+ 'src/third_party/mockito/src',
+]
+
+# These dependencies are missing in chromium/src/DEPS, either unused or already
+# in-tree. For instance, src/base is a part of the Chromium source git repo,
+# but we pull it through a subtree mirror, so therefore it isn't listed in
+# Chromium's deps but it is in ours.
+LIBYUV_ONLY_DEPS = [
+ 'src/base',
+ 'src/build',
+ 'src/buildtools',
+ 'src/ios',
+ 'src/testing',
+ 'src/third_party',
+ 'src/third_party/android_support_test_runner',
+ 'src/third_party/bazel',
+ 'src/third_party/bouncycastle',
+ 'src/third_party/errorprone/lib',
+ 'src/third_party/findbugs',
+ 'src/third_party/gson',
+ 'src/third_party/gtest-parallel',
+ 'src/third_party/guava',
+ 'src/third_party/intellij',
+ 'src/third_party/jsr-305/src',
+ 'src/third_party/ow2_asm',
+ 'src/third_party/proguard',
+ 'src/third_party/ub-uiautomator/lib',
+ 'src/tools',
+ 'src/tools/clang/dsymutil',
+]
+
+LIBYUV_URL = 'https://chromium.googlesource.com/libyuv/libyuv'
+CHROMIUM_SRC_URL = 'https://chromium.googlesource.com/chromium/src'
+CHROMIUM_COMMIT_TEMPLATE = CHROMIUM_SRC_URL + '/+/%s'
+CHROMIUM_LOG_TEMPLATE = CHROMIUM_SRC_URL + '/+log/%s'
+CHROMIUM_FILE_TEMPLATE = CHROMIUM_SRC_URL + '/+/%s/%s'
+
+COMMIT_POSITION_RE = re.compile('^Cr-Commit-Position: .*#([0-9]+).*$')
+CLANG_REVISION_RE = re.compile(r'^CLANG_REVISION = \'([-0-9a-z]+)\'$')
+ROLL_BRANCH_NAME = 'roll_chromium_revision'
+
+SCRIPT_DIR = os.path.dirname(os.path.abspath(__file__))
+CHECKOUT_SRC_DIR = FindSrcDirPath()
+CHECKOUT_ROOT_DIR = os.path.realpath(os.path.join(CHECKOUT_SRC_DIR, os.pardir))
+
+# Copied from tools/android/roll/android_deps/.../BuildConfigGenerator.groovy.
+ANDROID_DEPS_START = r'=== ANDROID_DEPS Generated Code Start ==='
+ANDROID_DEPS_END = r'=== ANDROID_DEPS Generated Code End ==='
+# Location of automically gathered android deps.
+ANDROID_DEPS_PATH = 'src/third_party/android_deps/'
+
+sys.path.append(os.path.join(CHECKOUT_SRC_DIR, 'build'))
+import find_depot_tools
+
+find_depot_tools.add_depot_tools_to_path()
+
+CLANG_UPDATE_SCRIPT_URL_PATH = 'tools/clang/scripts/update.py'
+CLANG_UPDATE_SCRIPT_LOCAL_PATH = os.path.join(CHECKOUT_SRC_DIR, 'tools',
+ 'clang', 'scripts', 'update.py')
+
+DepsEntry = collections.namedtuple('DepsEntry', 'path url revision')
+ChangedDep = collections.namedtuple('ChangedDep',
+ 'path url current_rev new_rev')
+CipdDepsEntry = collections.namedtuple('CipdDepsEntry', 'path packages')
+VersionEntry = collections.namedtuple('VersionEntry', 'version')
+ChangedCipdPackage = collections.namedtuple(
+ 'ChangedCipdPackage', 'path package current_version new_version')
+ChangedVersionEntry = collections.namedtuple(
+ 'ChangedVersionEntry', 'path current_version new_version')
+
+ChromiumRevisionUpdate = collections.namedtuple('ChromiumRevisionUpdate',
+ ('current_chromium_rev '
+ 'new_chromium_rev '))
+
+
+class RollError(Exception):
+ pass
+
+
+def StrExpansion():
+ return lambda str_value: str_value
+
+
+def VarLookup(local_scope):
+ return lambda var_name: local_scope['vars'][var_name]
+
+
+def ParseDepsDict(deps_content):
+ local_scope = {}
+ global_scope = {
+ 'Str': StrExpansion(),
+ 'Var': VarLookup(local_scope),
+ 'deps_os': {},
+ }
+ exec(deps_content, global_scope, local_scope)
+ return local_scope
+
+
+def ParseLocalDepsFile(filename):
+ with open(filename, 'rb') as f:
+ deps_content = f.read().decode('utf-8')
+ return ParseDepsDict(deps_content)
+
+
+def ParseCommitPosition(commit_message):
+ for line in reversed(commit_message.splitlines()):
+ m = COMMIT_POSITION_RE.match(line.strip())
+ if m:
+ return int(m.group(1))
+ logging.error('Failed to parse commit position id from:\n%s\n',
+ commit_message)
+ sys.exit(-1)
+
+
+def _RunCommand(command,
+ working_dir=None,
+ ignore_exit_code=False,
+ extra_env=None,
+ input_data=None):
+ """Runs a command and returns the output from that command.
+
+ If the command fails (exit code != 0), the function will exit the process.
+
+ Returns:
+ A tuple containing the stdout and stderr outputs as strings.
+ """
+ working_dir = working_dir or CHECKOUT_SRC_DIR
+ logging.debug('CMD: %s CWD: %s', ' '.join(command), working_dir)
+ env = os.environ.copy()
+ if extra_env:
+ assert all(isinstance(value, str) for value in extra_env.values())
+ logging.debug('extra env: %s', extra_env)
+ env.update(extra_env)
+ p = subprocess.Popen(command,
+ stdin=subprocess.PIPE,
+ stdout=subprocess.PIPE,
+ stderr=subprocess.PIPE,
+ env=env,
+ cwd=working_dir,
+ universal_newlines=True)
+ std_output, err_output = p.communicate(input_data)
+ p.stdout.close()
+ p.stderr.close()
+ if not ignore_exit_code and p.returncode != 0:
+ logging.error('Command failed: %s\n'
+ 'stdout:\n%s\n'
+ 'stderr:\n%s\n', ' '.join(command), std_output, err_output)
+ sys.exit(p.returncode)
+ return std_output, err_output
+
+
+def _GetBranches():
+ """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 = _RunCommand(['git', 'branch'])[0].split('\n')
+ branches = []
+ active = ''
+ for line in lines:
+ if '*' in line:
+ # The assumption is that the first char will always be the '*'.
+ active = line[1:].strip()
+ branches.append(active)
+ else:
+ branch = line.strip()
+ if branch:
+ branches.append(branch)
+ return active, branches
+
+
+def _ReadGitilesContent(url):
+ # Download and decode BASE64 content until
+ # https://code.google.com/p/gitiles/issues/detail?id=7 is fixed.
+ base64_content = ReadUrlContent(url + '?format=TEXT')
+ return base64.b64decode(base64_content[0]).decode('utf-8')
+
+
+def ReadRemoteCrFile(path_below_src, revision):
+ """Reads a remote Chromium file of a specific revision.
+
+ Args:
+ path_below_src: A path to the target file relative to src dir.
+ revision: Revision to read.
+ Returns:
+ A string with file content.
+ """
+ return _ReadGitilesContent(CHROMIUM_FILE_TEMPLATE %
+ (revision, path_below_src))
+
+
+def ReadRemoteCrCommit(revision):
+ """Reads a remote Chromium commit message. Returns a string."""
+ return _ReadGitilesContent(CHROMIUM_COMMIT_TEMPLATE % revision)
+
+
+def ReadUrlContent(url):
+ """Connect to a remote host and read the contents.
+
+ Args:
+ url: URL to connect to.
+ Returns:
+ A list of lines.
+ """
+ conn = urllib.request.urlopen(url)
+ try:
+ return conn.readlines()
+ except IOError as e:
+ logging.exception('Error connecting to %s. Error: %s', url, e)
+ raise
+ finally:
+ conn.close()
+
+
+def GetMatchingDepsEntries(depsentry_dict, dir_path):
+ """Gets all deps entries matching the provided path.
+
+ This list may contain more than one DepsEntry object.
+ Example: dir_path='src/testing' would give results containing both
+ 'src/testing/gtest' and 'src/testing/gmock' deps entries for Chromium's
+ DEPS.
+ Example 2: dir_path='src/build' should return 'src/build' but not
+ 'src/buildtools'.
+
+ Returns:
+ A list of DepsEntry objects.
+ """
+ result = []
+ for path, depsentry in depsentry_dict.items():
+ if path == dir_path:
+ result.append(depsentry)
+ else:
+ parts = path.split('/')
+ if all(part == parts[i] for i, part in enumerate(dir_path.split('/'))):
+ result.append(depsentry)
+ return result
+
+
+def BuildDepsentryDict(deps_dict):
+ """Builds a dict of paths to DepsEntry objects from a raw deps dict."""
+ result = {}
+
+ def AddDepsEntries(deps_subdict):
+ for path, dep in deps_subdict.items():
+ if path in result:
+ continue
+ if not isinstance(dep, dict):
+ dep = {'url': dep}
+ if dep.get('dep_type') == 'cipd':
+ result[path] = CipdDepsEntry(path, dep['packages'])
+ else:
+ if '@' not in dep['url']:
+ continue
+ url, revision = dep['url'].split('@')
+ result[path] = DepsEntry(path, url, revision)
+
+ def AddVersionEntry(vars_subdict):
+ for key, value in vars_subdict.items():
+ if key in result:
+ continue
+ if not key.endswith('_version'):
+ continue
+ key = re.sub('_version$', '', key)
+ result[key] = VersionEntry(value)
+
+ AddDepsEntries(deps_dict['deps'])
+ for deps_os in ['win', 'mac', 'unix', 'android', 'ios', 'unix']:
+ AddDepsEntries(deps_dict.get('deps_os', {}).get(deps_os, {}))
+ AddVersionEntry(deps_dict.get('vars', {}))
+ return result
+
+
+def _FindChangedCipdPackages(path, old_pkgs, new_pkgs):
+ old_pkgs_names = {p['package'] for p in old_pkgs}
+ new_pkgs_names = {p['package'] for p in new_pkgs}
+ pkgs_equal = (old_pkgs_names == new_pkgs_names)
+ added_pkgs = [p for p in new_pkgs_names if p not in old_pkgs_names]
+ removed_pkgs = [p for p in old_pkgs_names if p not in new_pkgs_names]
+
+ assert pkgs_equal, ('Old: %s\n New: %s.\nYou need to do a manual roll '
+ 'and remove/add entries in DEPS so the old and new '
+ 'list match.\nMost likely, you should add \"%s\" and '
+ 'remove \"%s\"' %
+ (old_pkgs, new_pkgs, added_pkgs, removed_pkgs))
+
+ for old_pkg in old_pkgs:
+ for new_pkg in new_pkgs:
+ old_version = old_pkg['version']
+ new_version = new_pkg['version']
+ if (old_pkg['package'] == new_pkg['package']
+ and old_version != new_version):
+ logging.debug('Roll dependency %s to %s', path, new_version)
+ yield ChangedCipdPackage(path, old_pkg['package'], old_version,
+ new_version)
+
+
+def _FindChangedVars(name, old_version, new_version):
+ if old_version != new_version:
+ logging.debug('Roll dependency %s to %s', name, new_version)
+ yield ChangedVersionEntry(name, old_version, new_version)
+
+
+def _FindNewDeps(old, new):
+ """ Gather dependencies only in `new` and return corresponding paths. """
+ old_entries = set(BuildDepsentryDict(old))
+ new_entries = set(BuildDepsentryDict(new))
+ return [
+ path for path in new_entries - old_entries
+ if path not in DONT_AUTOROLL_THESE
+ ]
+
+
+def FindAddedDeps(libyuv_deps, new_cr_deps):
+ """
+ Calculate new deps entries of interest.
+
+ Ideally, that would mean: only appearing in chromium DEPS
+ but transitively used in LibYUV.
+
+ Since it's hard to compute, we restrict ourselves to a well defined subset:
+ deps sitting in `ANDROID_DEPS_PATH`.
+ Otherwise, assumes that's a Chromium-only dependency.
+
+ Args:
+ libyuv_deps: dict of deps as defined in the LibYUV DEPS file.
+ new_cr_deps: dict of deps as defined in the chromium DEPS file.
+
+ Caveat: Doesn't detect a new package in existing dep.
+
+ Returns:
+ A tuple consisting of:
+ A list of paths added dependencies sitting in `ANDROID_DEPS_PATH`.
+ A list of paths for other added dependencies.
+ """
+ all_added_deps = _FindNewDeps(libyuv_deps, new_cr_deps)
+ generated_android_deps = [
+ path for path in all_added_deps if path.startswith(ANDROID_DEPS_PATH)
+ ]
+ other_deps = [
+ path for path in all_added_deps if path not in generated_android_deps
+ ]
+ return generated_android_deps, other_deps
+
+
+def FindRemovedDeps(libyuv_deps, new_cr_deps):
+ """
+ Calculate obsolete deps entries.
+
+ Ideally, that would mean: no more appearing in chromium DEPS
+ and not used in LibYUV.
+
+ Since it's hard to compute:
+ 1/ We restrict ourselves to a well defined subset:
+ deps sitting in `ANDROID_DEPS_PATH`.
+ 2/ We rely on existing behavior of CalculateChangeDeps.
+ I.e. Assumes non-CIPD dependencies are LibYUV-only, don't remove them.
+
+ Args:
+ libyuv_deps: dict of deps as defined in the LibYUV DEPS file.
+ new_cr_deps: dict of deps as defined in the chromium DEPS file.
+
+ Caveat: Doesn't detect a deleted package in existing dep.
+
+ Returns:
+ A tuple consisting of:
+ A list of paths of dependencies removed from `ANDROID_DEPS_PATH`.
+ A list of paths of unexpected disappearing dependencies.
+ """
+ all_removed_deps = _FindNewDeps(new_cr_deps, libyuv_deps)
+ generated_android_deps = sorted(
+ [path for path in all_removed_deps if path.startswith(ANDROID_DEPS_PATH)])
+ # Webrtc-only dependencies are handled in CalculateChangedDeps.
+ other_deps = sorted([
+ path for path in all_removed_deps
+ if path not in generated_android_deps and path not in LIBYUV_ONLY_DEPS
+ ])
+ return generated_android_deps, other_deps
+
+
+def CalculateChangedDeps(libyuv_deps, new_cr_deps):
+ """
+ Calculate changed deps entries based on entries defined in the LibYUV DEPS
+ file:
+ - If a shared dependency with the Chromium DEPS file: roll it to the same
+ revision as Chromium (i.e. entry in the new_cr_deps dict)
+ - If it's a Chromium sub-directory, roll it to the HEAD revision (notice
+ this means it may be ahead of the chromium_revision, but generally these
+ should be close).
+ - If it's another DEPS entry (not shared with Chromium), roll it to HEAD
+ unless it's configured to be skipped.
+
+ Returns:
+ A list of ChangedDep objects representing the changed deps.
+ """
+ result = []
+ libyuv_entries = BuildDepsentryDict(libyuv_deps)
+ new_cr_entries = BuildDepsentryDict(new_cr_deps)
+ for path, libyuv_deps_entry in libyuv_entries.items():
+ if path in DONT_AUTOROLL_THESE:
+ continue
+ cr_deps_entry = new_cr_entries.get(path)
+ if cr_deps_entry:
+ assert type(cr_deps_entry) is type(libyuv_deps_entry)
+
+ if isinstance(cr_deps_entry, CipdDepsEntry):
+ result.extend(
+ _FindChangedCipdPackages(path, libyuv_deps_entry.packages,
+ cr_deps_entry.packages))
+ continue
+
+ if isinstance(cr_deps_entry, VersionEntry):
+ result.extend(
+ _FindChangedVars(path, libyuv_deps_entry.version,
+ cr_deps_entry.version))
+ continue
+
+ # Use the revision from Chromium's DEPS file.
+ new_rev = cr_deps_entry.revision
+ assert libyuv_deps_entry.url == cr_deps_entry.url, (
+ 'LibYUV DEPS entry %s has a different URL %s than Chromium %s.' %
+ (path, libyuv_deps_entry.url, cr_deps_entry.url))
+ else:
+ if isinstance(libyuv_deps_entry, DepsEntry):
+ # Use the HEAD of the deps repo.
+ stdout, _ = _RunCommand(
+ ['git', 'ls-remote', libyuv_deps_entry.url, 'HEAD'])
+ new_rev = stdout.strip().split('\t')[0]
+ else:
+ # The dependency has been removed from chromium.
+ # This is handled by FindRemovedDeps.
+ continue
+
+ # Check if an update is necessary.
+ if libyuv_deps_entry.revision != new_rev:
+ logging.debug('Roll dependency %s to %s', path, new_rev)
+ result.append(
+ ChangedDep(path, libyuv_deps_entry.url, libyuv_deps_entry.revision,
+ new_rev))
+ return sorted(result)
+
+
+def CalculateChangedClang(new_cr_rev):
+
+ def GetClangRev(lines):
+ for line in lines:
+ match = CLANG_REVISION_RE.match(line)
+ if match:
+ return match.group(1)
+ raise RollError('Could not parse Clang revision!')
+
+ with open(CLANG_UPDATE_SCRIPT_LOCAL_PATH, 'r') as f:
+ current_lines = f.readlines()
+ current_rev = GetClangRev(current_lines)
+
+ new_clang_update_py = ReadRemoteCrFile(CLANG_UPDATE_SCRIPT_URL_PATH,
+ new_cr_rev).splitlines()
+ new_rev = GetClangRev(new_clang_update_py)
+ return ChangedDep(CLANG_UPDATE_SCRIPT_LOCAL_PATH, None, current_rev, new_rev)
+
+
+def GenerateCommitMessage(
+ rev_update,
+ current_commit_pos,
+ new_commit_pos,
+ changed_deps_list,
+ added_deps_paths=None,
+ removed_deps_paths=None,
+ clang_change=None,
+):
+ current_cr_rev = rev_update.current_chromium_rev[0:10]
+ new_cr_rev = rev_update.new_chromium_rev[0:10]
+ rev_interval = '%s..%s' % (current_cr_rev, new_cr_rev)
+ git_number_interval = '%s:%s' % (current_commit_pos, new_commit_pos)
+
+ commit_msg = [
+ 'Roll chromium_revision %s (%s)\n' % (rev_interval, git_number_interval),
+ 'Change log: %s' % (CHROMIUM_LOG_TEMPLATE % rev_interval),
+ 'Full diff: %s\n' % (CHROMIUM_COMMIT_TEMPLATE % rev_interval)
+ ]
+
+ def Section(adjective, deps):
+ noun = 'dependency' if len(deps) == 1 else 'dependencies'
+ commit_msg.append('%s %s' % (adjective, noun))
+
+ if changed_deps_list:
+ Section('Changed', changed_deps_list)
+
+ for c in changed_deps_list:
+ if isinstance(c, ChangedCipdPackage):
+ commit_msg.append('* %s: %s..%s' %
+ (c.path, c.current_version, c.new_version))
+ elif isinstance(c, ChangedVersionEntry):
+ commit_msg.append('* %s_vesion: %s..%s' %
+ (c.path, c.current_version, c.new_version))
+ else:
+ commit_msg.append('* %s: %s/+log/%s..%s' %
+ (c.path, c.url, c.current_rev[0:10], c.new_rev[0:10]))
+
+ if added_deps_paths:
+ Section('Added', added_deps_paths)
+ commit_msg.extend('* %s' % p for p in added_deps_paths)
+
+ if removed_deps_paths:
+ Section('Removed', removed_deps_paths)
+ commit_msg.extend('* %s' % p for p in removed_deps_paths)
+
+ if any([changed_deps_list, added_deps_paths, removed_deps_paths]):
+ change_url = CHROMIUM_FILE_TEMPLATE % (rev_interval, 'DEPS')
+ commit_msg.append('DEPS diff: %s\n' % change_url)
+ else:
+ commit_msg.append('No dependencies changed.')
+
+ if clang_change and clang_change.current_rev != clang_change.new_rev:
+ commit_msg.append('Clang version changed %s:%s' %
+ (clang_change.current_rev, clang_change.new_rev))
+ change_url = CHROMIUM_FILE_TEMPLATE % (rev_interval,
+ CLANG_UPDATE_SCRIPT_URL_PATH)
+ commit_msg.append('Details: %s\n' % change_url)
+ else:
+ commit_msg.append('No update to Clang.\n')
+
+ commit_msg.append('BUG=None')
+ return '\n'.join(commit_msg)
+
+
+def UpdateDepsFile(deps_filename, rev_update, changed_deps, new_cr_content):
+ """Update the DEPS file with the new revision."""
+
+ with open(deps_filename, 'rb') as deps_file:
+ deps_content = deps_file.read().decode('utf-8')
+
+ # Update the chromium_revision variable.
+ deps_content = deps_content.replace(rev_update.current_chromium_rev,
+ rev_update.new_chromium_rev)
+
+ # Add and remove dependencies. For now: only generated android deps.
+ # Since gclient cannot add or remove deps, we on the fact that
+ # these android deps are located in one place we can copy/paste.
+ deps_re = re.compile(ANDROID_DEPS_START + '.*' + ANDROID_DEPS_END, re.DOTALL)
+ new_deps = deps_re.search(new_cr_content)
+ old_deps = deps_re.search(deps_content)
+ if not new_deps or not old_deps:
+ faulty = 'Chromium' if not new_deps else 'LibYUV'
+ raise RollError('Was expecting to find "%s" and "%s"\n'
+ 'in %s DEPS' %
+ (ANDROID_DEPS_START, ANDROID_DEPS_END, faulty))
+ deps_content = deps_re.sub(new_deps.group(0), deps_content)
+
+ for dep in changed_deps:
+ if isinstance(dep, ChangedVersionEntry):
+ deps_content = deps_content.replace(dep.current_version, dep.new_version)
+
+ with open(deps_filename, 'wb') as deps_file:
+ deps_file.write(deps_content.encode('utf-8'))
+
+ # Update each individual DEPS entry.
+ for dep in changed_deps:
+ # ChangedVersionEntry types are already been processed.
+ if isinstance(dep, ChangedVersionEntry):
+ continue
+ local_dep_dir = os.path.join(CHECKOUT_ROOT_DIR, dep.path)
+ if not os.path.isdir(local_dep_dir):
+ raise RollError(
+ 'Cannot find local directory %s. Either run\n'
+ 'gclient sync --deps=all\n'
+ 'or make sure the .gclient file for your solution contains all '
+ 'platforms in the target_os list, i.e.\n'
+ 'target_os = ["android", "unix", "mac", "ios", "win"];\n'
+ 'Then run "gclient sync" again.' % local_dep_dir)
+ if isinstance(dep, ChangedCipdPackage):
+ package = dep.package.format() # Eliminate double curly brackets
+ update = '%s:%s@%s' % (dep.path, package, dep.new_version)
+ else:
+ update = '%s@%s' % (dep.path, dep.new_rev)
+ _RunCommand(['gclient', 'setdep', '--revision', update],
+ working_dir=CHECKOUT_SRC_DIR)
+
+
+def _IsTreeClean():
+ stdout, _ = _RunCommand(['git', 'status', '--porcelain'])
+ if len(stdout) == 0:
+ return True
+
+ logging.error('Dirty/unversioned files:\n%s', stdout)
+ return False
+
+
+def _EnsureUpdatedMainBranch(dry_run):
+ current_branch = _RunCommand(['git', 'rev-parse', '--abbrev-ref',
+ 'HEAD'])[0].splitlines()[0]
+ if current_branch != 'main':
+ logging.error('Please checkout the main branch and re-run this script.')
+ if not dry_run:
+ sys.exit(-1)
+
+ logging.info('Updating main branch...')
+ _RunCommand(['git', 'pull'])
+
+
+def _CreateRollBranch(dry_run):
+ logging.info('Creating roll branch: %s', ROLL_BRANCH_NAME)
+ if not dry_run:
+ _RunCommand(['git', 'checkout', '-b', ROLL_BRANCH_NAME])
+
+
+def _RemovePreviousRollBranch(dry_run):
+ active_branch, branches = _GetBranches()
+ if active_branch == ROLL_BRANCH_NAME:
+ active_branch = 'main'
+ if ROLL_BRANCH_NAME in branches:
+ logging.info('Removing previous roll branch (%s)', ROLL_BRANCH_NAME)
+ if not dry_run:
+ _RunCommand(['git', 'checkout', active_branch])
+ _RunCommand(['git', 'branch', '-D', ROLL_BRANCH_NAME])
+
+
+def _LocalCommit(commit_msg, dry_run):
+ logging.info('Committing changes locally.')
+ if not dry_run:
+ _RunCommand(['git', 'add', '--update', '.'])
+ _RunCommand(['git', 'commit', '-m', commit_msg])
+
+
+def ChooseCQMode(skip_cq, cq_over, current_commit_pos, new_commit_pos):
+ if skip_cq:
+ return 0
+ if (new_commit_pos - current_commit_pos) < cq_over:
+ return 1
+ return 2
+
+
+def _GetCcRecipients(changed_deps_list):
+ """Returns a list of emails to notify based on the changed deps list.
+ """
+ cc_recipients = []
+ for c in changed_deps_list:
+ pass
+ return cc_recipients
+
+
+def _UploadCL(commit_queue_mode, add_cc=None):
+ """Upload the committed changes as a changelist to Gerrit.
+
+ commit_queue_mode:
+ - 2: Submit to commit queue.
+ - 1: Run trybots but do not submit to CQ.
+ - 0: Skip CQ, upload only.
+
+ add_cc: A list of email addresses to add as CC recipients.
+ """
+ cc_recipients = []
+ if add_cc:
+ cc_recipients.extend(add_cc)
+ cmd = ['git', 'cl', 'upload', '--force', '--bypass-hooks']
+ if commit_queue_mode >= 2:
+ logging.info('Sending the CL to the CQ...')
+ cmd.extend(['-o', 'label=Bot-Commit+1'])
+ cmd.extend(['-o', 'label=Commit-Queue+2'])
+ cmd.extend(['--send-mail', '--cc', ','.join(cc_recipients)])
+ elif commit_queue_mode >= 1:
+ logging.info('Starting CQ dry run...')
+ cmd.extend(['-o', 'label=Commit-Queue+1'])
+ extra_env = {
+ 'EDITOR': 'true',
+ 'SKIP_GCE_AUTH_FOR_GIT': '1',
+ }
+ stdout, stderr = _RunCommand(cmd, extra_env=extra_env)
+ logging.debug('Output from "git cl upload":\nstdout:\n%s\n\nstderr:\n%s',
+ stdout, stderr)
+
+
+def GetRollRevisionRanges(opts, libyuv_deps):
+ current_cr_rev = libyuv_deps['vars']['chromium_revision']
+ new_cr_rev = opts.revision
+ if not new_cr_rev:
+ stdout, _ = _RunCommand(['git', 'ls-remote', CHROMIUM_SRC_URL, 'HEAD'])
+ head_rev = stdout.strip().split('\t')[0]
+ logging.info('No revision specified. Using HEAD: %s', head_rev)
+ new_cr_rev = head_rev
+
+ return ChromiumRevisionUpdate(current_cr_rev, new_cr_rev)
+
+
+def main():
+ p = argparse.ArgumentParser()
+ p.add_argument('--clean',
+ action='store_true',
+ default=False,
+ help='Removes any previous local roll branch.')
+ p.add_argument('-r',
+ '--revision',
+ help=('Chromium Git revision to roll to. Defaults to the '
+ 'Chromium HEAD revision if omitted.'))
+ p.add_argument('--dry-run',
+ action='store_true',
+ default=False,
+ help=('Calculate changes and modify DEPS, but don\'t create '
+ 'any local branch, commit, upload CL or send any '
+ 'tryjobs.'))
+ p.add_argument('-i',
+ '--ignore-unclean-workdir',
+ action='store_true',
+ default=False,
+ help=('Ignore if the current branch is not main or if there '
+ 'are uncommitted changes (default: %(default)s).'))
+ grp = p.add_mutually_exclusive_group()
+ grp.add_argument('--skip-cq',
+ action='store_true',
+ default=False,
+ help='Skip sending the CL to the CQ (default: %(default)s)')
+ grp.add_argument('--cq-over',
+ type=int,
+ default=1,
+ help=('Commit queue dry run if the revision difference '
+ 'is below this number (default: %(default)s)'))
+ p.add_argument('-v',
+ '--verbose',
+ action='store_true',
+ default=False,
+ help='Be extra verbose in printing of log messages.')
+ opts = p.parse_args()
+
+ if opts.verbose:
+ logging.basicConfig(level=logging.DEBUG)
+ else:
+ logging.basicConfig(level=logging.INFO)
+
+ if not opts.ignore_unclean_workdir and not _IsTreeClean():
+ logging.error('Please clean your local checkout first.')
+ return 1
+
+ if opts.clean:
+ _RemovePreviousRollBranch(opts.dry_run)
+
+ if not opts.ignore_unclean_workdir:
+ _EnsureUpdatedMainBranch(opts.dry_run)
+
+ deps_filename = os.path.join(CHECKOUT_SRC_DIR, 'DEPS')
+ libyuv_deps = ParseLocalDepsFile(deps_filename)
+
+ rev_update = GetRollRevisionRanges(opts, libyuv_deps)
+
+ current_commit_pos = ParseCommitPosition(
+ ReadRemoteCrCommit(rev_update.current_chromium_rev))
+ new_commit_pos = ParseCommitPosition(
+ ReadRemoteCrCommit(rev_update.new_chromium_rev))
+
+ new_cr_content = ReadRemoteCrFile('DEPS', rev_update.new_chromium_rev)
+ new_cr_deps = ParseDepsDict(new_cr_content)
+ changed_deps = CalculateChangedDeps(libyuv_deps, new_cr_deps)
+ # Discard other deps, assumed to be chromium-only dependencies.
+ new_generated_android_deps, _ = FindAddedDeps(libyuv_deps, new_cr_deps)
+ removed_generated_android_deps, other_deps = FindRemovedDeps(
+ libyuv_deps, new_cr_deps)
+ if other_deps:
+ raise RollError('LibYUV DEPS entries are missing from Chromium: %s.\n'
+ 'Remove them or add them to either '
+ 'LIBYUV_ONLY_DEPS or DONT_AUTOROLL_THESE.' % other_deps)
+ clang_change = CalculateChangedClang(rev_update.new_chromium_rev)
+ commit_msg = GenerateCommitMessage(
+ rev_update,
+ current_commit_pos,
+ new_commit_pos,
+ changed_deps,
+ added_deps_paths=new_generated_android_deps,
+ removed_deps_paths=removed_generated_android_deps,
+ clang_change=clang_change)
+ logging.debug('Commit message:\n%s', commit_msg)
+
+ _CreateRollBranch(opts.dry_run)
+ if not opts.dry_run:
+ UpdateDepsFile(deps_filename, rev_update, changed_deps, new_cr_content)
+ if _IsTreeClean():
+ logging.info("No DEPS changes detected, skipping CL creation.")
+ else:
+ _LocalCommit(commit_msg, opts.dry_run)
+ commit_queue_mode = ChooseCQMode(opts.skip_cq, opts.cq_over,
+ current_commit_pos, new_commit_pos)
+ logging.info('Uploading CL...')
+ if not opts.dry_run:
+ _UploadCL(commit_queue_mode, _GetCcRecipients(changed_deps))
+ return 0
+
+
+if __name__ == '__main__':
+ sys.exit(main())