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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'
_TWISTED_TWISTED_DEP_NAME = 'com_github_twisted_twisted'
_YAML_PYYAML_DEP_NAME = 'com_github_yaml_pyyaml'
_TWISTED_INCREMENTAL_DEP_NAME = 'com_github_twisted_incremental'
_ZOPEFOUNDATION_ZOPE_INTERFACE_DEP_NAME = 'com_github_zopefoundation_zope_interface'
_TWISTED_CONSTANTLY_DEP_NAME = 'com_github_twisted_constantly'
_GRPC_DEP_NAMES = [
'boringssl',
'com_github_madler_zlib',
'com_google_protobuf',
'com_github_google_googletest',
'com_github_gflags_gflags',
'com_github_nanopb_nanopb',
'com_github_google_benchmark',
'com_github_cares_cares',
'com_google_absl',
'io_opencensus_cpp',
_BAZEL_TOOLCHAINS_DEP_NAME,
_TWISTED_TWISTED_DEP_NAME,
_YAML_PYYAML_DEP_NAME,
_TWISTED_INCREMENTAL_DEP_NAME,
_ZOPEFOUNDATION_ZOPE_INTERFACE_DEP_NAME,
_TWISTED_CONSTANTLY_DEP_NAME,
]
_GRPC_BAZEL_ONLY_DEPS = [
_BAZEL_TOOLCHAINS_DEP_NAME,
_TWISTED_TWISTED_DEP_NAME,
_YAML_PYYAML_DEP_NAME,
_TWISTED_INCREMENTAL_DEP_NAME,
_ZOPEFOUNDATION_ZOPE_INTERFACE_DEP_NAME,
_TWISTED_CONSTANTLY_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):
assert self.names_and_urls.get(args['name']) is None
if args['name'] in _GRPC_BAZEL_ONLY_DEPS:
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' and 'grpc_test_only_deps', add these
# lines to call them.
bazel_file += '\ngrpc_deps()\n'
bazel_file += '\ngrpc_test_only_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())
# There are some "bazel-only" deps that are exceptions to this sanity check,
# we don't require that there is a corresponding git module for these.
names_without_bazel_only_deps = names_and_urls.keys()
for dep_name in _GRPC_BAZEL_ONLY_DEPS:
names_without_bazel_only_deps.remove(dep_name)
archive_urls = [names_and_urls[name] for name in names_without_bazel_only_deps]
# Exclude nanopb from the check: it's not a submodule for distribution reasons,
# but it's a workspace dependency to enable users to use their own version.
workspace_git_hashes = {
re.search(git_hash_pattern, url).group()
for url in archive_urls
if 'nanopb' not in url
}
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"
)
# 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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