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#!/usr/bin/env python
# Copyright 2016 gRPC authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from __future__ import print_function
import ast
import os
import re
import subprocess
import sys
os.chdir(os.path.join(os.path.dirname(sys.argv[0]), '../../..'))
git_hash_pattern = re.compile('[0-9a-f]{40}')
# Parse git hashes from submodules
git_submodules = subprocess.check_output(
'git submodule', shell=True).strip().split('\n')
git_submodule_hashes = {
re.search(git_hash_pattern, s).group()
for s in git_submodules
}
_BAZEL_TOOLCHAINS_DEP_NAME = 'com_github_bazelbuild_bazeltoolchains'
_GRPC_DEP_NAMES = [
'boringssl',
'com_github_madler_zlib',
'com_google_protobuf',
'com_github_google_googletest',
'com_github_gflags_gflags',
'com_github_google_benchmark',
'com_github_cares_cares',
'com_google_absl',
_BAZEL_TOOLCHAINS_DEP_NAME,
]
class BazelEvalState(object):
def __init__(self, names_and_urls, overridden_name=None):
self.names_and_urls = names_and_urls
self.overridden_name = overridden_name
def http_archive(self, **args):
self.archive(**args)
def new_http_archive(self, **args):
self.archive(**args)
def bind(self, **args):
pass
def existing_rules(self):
if self.overridden_name:
return [self.overridden_name]
return []
def archive(self, **args):
if args['name'] == _BAZEL_TOOLCHAINS_DEP_NAME:
self.names_and_urls[args['name']] = 'dont care'
return
self.names_and_urls[args['name']] = args['url']
# Parse git hashes from bazel/grpc_deps.bzl {new_}http_archive rules
with open(os.path.join('bazel', 'grpc_deps.bzl'), 'r') as f:
names_and_urls = {}
eval_state = BazelEvalState(names_and_urls)
bazel_file = f.read()
# grpc_deps.bzl only defines 'grpc_deps', add this to call it
bazel_file += '\ngrpc_deps()\n'
build_rules = {
'native': eval_state,
}
exec bazel_file in build_rules
for name in _GRPC_DEP_NAMES:
assert name in names_and_urls.keys()
assert len(_GRPC_DEP_NAMES) == len(names_and_urls.keys())
# bazeltoolschains is an exception to this sanity check,
# we don't require that there is a corresponding git module.
names_without_bazeltoolchains = names_and_urls.keys()
names_without_bazeltoolchains.remove(_BAZEL_TOOLCHAINS_DEP_NAME)
archive_urls = [names_and_urls[name] for name in names_without_bazeltoolchains]
workspace_git_hashes = {
re.search(git_hash_pattern, url).group()
for url in archive_urls
}
if len(workspace_git_hashes) == 0:
print("(Likely) parse error, did not find any bazel git dependencies.")
sys.exit(1)
# Validate the equivalence of the git submodules and Bazel git dependencies. The
# condition we impose is that there is a git submodule for every dependency in
# the workspace, but not necessarily conversely. E.g. Bloaty is a dependency
# not used by any of the targets built by Bazel.
if len(workspace_git_hashes - git_submodule_hashes) > 0:
print(
"Found discrepancies between git submodules and Bazel WORKSPACE dependencies"
)
sys.exit(1)
# Also check that we can override each dependency
for name in _GRPC_DEP_NAMES:
names_and_urls_with_overridden_name = {}
state = BazelEvalState(
names_and_urls_with_overridden_name, overridden_name=name)
rules = {
'native': state,
}
exec bazel_file in rules
assert name not in names_and_urls_with_overridden_name.keys()
sys.exit(0)
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