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#!/usr/bin/env python
# Copyright 2019 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 sys
import os
import subprocess
import glob
import shutil
FILES_TO_SYNC = [
'crdtp/*',
'lib/*',
'templates/*',
'BUILD.gn',
'check_protocol_compatibility.py',
'code_generator.py',
'concatenate_protocols.py',
'convert_protocol_to_json.py',
'inspector_protocol.gni',
'README.md',
'LICENSE',
'pdl.py',
]
REVISION_LINE_PREFIX = 'Revision: '
def RunCmd(cmd):
p = subprocess.Popen(cmd, stdout=subprocess.PIPE)
(stdoutdata, stderrdata) = p.communicate()
if p.returncode != 0:
raise Exception('%s: exit status %d', str(cmd), p.returncode)
return stdoutdata.decode('utf-8')
def CheckRepoIsClean(path, suffix):
os.chdir(path) # As a side effect this also checks for existence of the dir.
# If path isn't a git repo, this will throw and exception.
# And if it is a git repo and 'git status' has anything interesting to say,
# then it's not clean (uncommitted files etc.)
if len(RunCmd(['git', 'status', '--porcelain'])) != 0:
raise Exception('%s is not a clean git repo (run git status)' % path)
if not path.endswith(suffix):
raise Exception('%s does not end with /%s' % (path, suffix))
def CheckRepoIsNotAtMainBranch(path):
os.chdir(path)
stdout = RunCmd(['git', 'rev-parse', '--abbrev-ref', 'HEAD']).strip()
if stdout == 'main':
raise Exception('%s is at main branch - refusing to copy there.' % path)
def CheckRepoIsInspectorProtocolCheckout(path):
os.chdir(path)
revision = RunCmd(['git', 'config', '--get', 'remote.origin.url']).strip()
if (revision != 'https://chromium.googlesource.com/deps/inspector_protocol.git'):
raise Exception('%s is not a proper inspector_protocol checkout: %s' % (path, revision))
def FindFilesToSyncIn(path):
files = []
for f in FILES_TO_SYNC:
files += glob.glob(os.path.join(path, f))
files = [os.path.relpath(f, path) for f in files]
return files
def FilesAreEqual(path1, path2):
# We check for permissions (useful for executable scripts) and contents.
return (os.stat(path1).st_mode == os.stat(path2).st_mode and
open(path1).read() == open(path2).read())
def ReadV8IPRevision(node_src_path):
lines = open(os.path.join(node_src_path, 'deps/v8/third_party/inspector_protocol/README.v8')).readlines()
for line in lines:
line = line.strip()
if line.startswith(REVISION_LINE_PREFIX):
return line[len(REVISION_LINE_PREFIX):]
raise Exception('No V8 inspector protocol revision found')
def CheckoutRevision(path, revision):
os.chdir(path)
return RunCmd(['git', 'checkout', revision])
def GetHeadRevision(path):
os.chdir(path)
return RunCmd(['git', 'rev-parse', 'HEAD'])
def main(argv):
parser = argparse.ArgumentParser(description=(
"Rolls the inspector_protocol project (upstream) into node's "
"deps/inspector_protocol (downstream)."))
parser.add_argument("--ip_src_upstream",
help="The inspector_protocol (upstream) tree.",
default="~/ip/src")
parser.add_argument("--node_src_downstream",
help="The nodejs/node src tree.",
default="~/nodejs/node")
parser.add_argument('--force', dest='force', action='store_true',
help=("Whether to carry out the modifications "
"in the destination tree."))
parser.set_defaults(force=False)
args = parser.parse_args(argv)
upstream = os.path.normpath(os.path.expanduser(args.ip_src_upstream))
downstream = os.path.normpath(os.path.expanduser(
args.node_src_downstream))
CheckRepoIsClean(upstream, '/src')
CheckRepoIsClean(downstream, '/node')
CheckRepoIsInspectorProtocolCheckout(upstream)
# Check that the destination Git repo isn't at the main branch - it's
# generally a bad idea to check into the main branch, so we catch this
# common pilot error here early.
CheckRepoIsNotAtMainBranch(downstream)
# Read V8's inspector_protocol revision
v8_ip_revision = ReadV8IPRevision(downstream)
print('Checking out %s into %s ...' % (upstream, v8_ip_revision))
CheckoutRevision(upstream, v8_ip_revision)
src_dir = upstream
dest_dir = os.path.join(downstream, 'deps/inspector_protocol')
print('Rolling %s into %s ...' % (src_dir, dest_dir))
src_files = set(FindFilesToSyncIn(src_dir))
dest_files = set(FindFilesToSyncIn(dest_dir))
to_add = [f for f in src_files if f not in dest_files]
to_delete = [f for f in dest_files if f not in src_files]
to_copy = [f for f in src_files
if (f in dest_files and not FilesAreEqual(
os.path.join(src_dir, f), os.path.join(dest_dir, f)))]
print('To add: %s' % to_add)
print('To delete: %s' % to_delete)
print('To copy: %s' % to_copy)
if not to_add and not to_delete and not to_copy:
print('Nothing to do. You\'re good.')
sys.exit(0)
if not args.force:
print('Rerun with --force if you wish the modifications to be done.')
sys.exit(1)
print('You said --force ... as you wish, modifying the destination.')
for f in to_add + to_copy:
contents = open(os.path.join(src_dir, f)).read()
open(os.path.join(dest_dir, f), 'w').write(contents)
shutil.copymode(os.path.join(src_dir, f), os.path.join(dest_dir, f))
for f in to_delete:
os.unlink(os.path.join(dest_dir, f))
head_revision = GetHeadRevision(upstream)
lines = open(os.path.join(dest_dir, 'README.node')).readlines()
f = open(os.path.join(dest_dir, 'README.node'), 'w')
for line in lines:
if line.startswith(REVISION_LINE_PREFIX):
f.write(f'{REVISION_LINE_PREFIX}{head_revision}')
else:
f.write(line)
f.close()
if __name__ == '__main__':
sys.exit(main(sys.argv[1:]))
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