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grpc/tools/distrib/fix_build_deps.py

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#!/usr/bin/env python3
# Copyright 2022 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.
import argparse
import collections
from doctest import SKIP
import multiprocessing
import os
import re
import sys
import run_buildozer
# find our home
ROOT = os.path.abspath(os.path.join(os.path.dirname(sys.argv[0]), '../..'))
os.chdir(ROOT)
vendors = collections.defaultdict(list)
scores = collections.defaultdict(int)
avoidness = collections.defaultdict(int)
consumes = {}
no_update = set()
buildozer_commands = []
needs_codegen_base_src = set()
original_deps = {}
original_external_deps = {}
skip_headers = collections.defaultdict(set)
# TODO(ctiller): ideally we wouldn't hardcode a bunch of paths here.
# We can likely parse out BUILD files from dependencies to generate this index.
EXTERNAL_DEPS = {
'absl/algorithm/container.h':
'absl/algorithm:container',
'absl/base/attributes.h':
'absl/base:core_headers',
'absl/base/call_once.h':
'absl/base',
# TODO(ctiller) remove this
'absl/base/internal/endian.h':
'absl/base',
'absl/base/thread_annotations.h':
'absl/base:core_headers',
'absl/container/flat_hash_map.h':
'absl/container:flat_hash_map',
'absl/container/flat_hash_set.h':
'absl/container:flat_hash_set',
'absl/container/inlined_vector.h':
'absl/container:inlined_vector',
'absl/cleanup/cleanup.h':
'absl/cleanup',
'absl/debugging/failure_signal_handler.h':
'absl/debugging:failure_signal_handler',
'absl/debugging/stacktrace.h':
'absl/debugging:stacktrace',
'absl/debugging/symbolize.h':
'absl/debugging:symbolize',
'absl/flags/flag.h':
'absl/flags:flag',
'absl/flags/parse.h':
'absl/flags:parse',
'absl/functional/any_invocable.h':
'absl/functional:any_invocable',
'absl/functional/bind_front.h':
'absl/functional:bind_front',
'absl/functional/function_ref.h':
'absl/functional:function_ref',
'absl/hash/hash.h':
'absl/hash',
'absl/memory/memory.h':
'absl/memory',
'absl/meta/type_traits.h':
'absl/meta:type_traits',
'absl/random/random.h':
'absl/random',
'absl/random/distributions.h':
'absl/random:distributions',
'absl/status/status.h':
'absl/status',
'absl/status/statusor.h':
'absl/status:statusor',
'absl/strings/ascii.h':
'absl/strings',
'absl/strings/cord.h':
'absl/strings:cord',
'absl/strings/escaping.h':
'absl/strings',
'absl/strings/match.h':
'absl/strings',
'absl/strings/numbers.h':
'absl/strings',
'absl/strings/str_cat.h':
'absl/strings',
'absl/strings/str_format.h':
'absl/strings:str_format',
'absl/strings/str_join.h':
'absl/strings',
'absl/strings/str_replace.h':
'absl/strings',
'absl/strings/str_split.h':
'absl/strings',
'absl/strings/string_view.h':
'absl/strings',
'absl/strings/strip.h':
'absl/strings',
'absl/strings/substitute.h':
'absl/strings',
'absl/synchronization/mutex.h':
'absl/synchronization',
'absl/synchronization/notification.h':
'absl/synchronization',
'absl/time/clock.h':
'absl/time',
'absl/time/time.h':
'absl/time',
'absl/types/optional.h':
'absl/types:optional',
'absl/types/span.h':
'absl/types:span',
'absl/types/variant.h':
'absl/types:variant',
'absl/utility/utility.h':
'absl/utility',
'address_sorting/address_sorting.h':
'address_sorting',
'ares.h':
'cares',
'gmock/gmock.h':
'gtest',
'gtest/gtest.h':
'gtest',
'opencensus/trace/context_util.h':
'opencensus-trace-context_util',
'opencensus/trace/propagation/grpc_trace_bin.h':
'opencensus-trace-propagation',
'opencensus/tags/context_util.h':
'opencensus-tags-context_util',
'openssl/base.h':
'libssl',
'openssl/bio.h':
'libssl',
'openssl/bn.h':
'libcrypto',
'openssl/buffer.h':
'libcrypto',
'openssl/crypto.h':
'libcrypto',
'openssl/digest.h':
'libssl',
'openssl/engine.h':
'libcrypto',
'openssl/err.h':
'libcrypto',
'openssl/evp.h':
'libcrypto',
'openssl/hmac.h':
'libcrypto',
'openssl/pem.h':
'libcrypto',
'openssl/rsa.h':
'libcrypto',
'openssl/sha.h':
'libcrypto',
'openssl/ssl.h':
'libssl',
'openssl/tls1.h':
'libssl',
'openssl/x509.h':
'libcrypto',
'openssl/x509v3.h':
'libcrypto',
're2/re2.h':
're2',
'upb/arena.h':
'upb_lib',
'upb/def.h':
'upb_lib',
'upb/json_encode.h':
'upb_json_lib',
'upb/text_encode.h':
'upb_textformat_lib',
'upb/def.hpp':
'upb_reflection',
'upb/upb.h':
'upb_lib',
'upb/upb.hpp':
'upb_lib',
'xxhash.h':
'xxhash',
'zlib.h':
'madler_zlib',
}
INTERNAL_DEPS = {
'google/api/expr/v1alpha1/syntax.upb.h':
'google_type_expr_upb',
'google/rpc/status.upb.h':
'google_rpc_status_upb',
'google/protobuf/any.upb.h':
'protobuf_any_upb',
'google/protobuf/duration.upb.h':
'protobuf_duration_upb',
'google/protobuf/struct.upb.h':
'protobuf_struct_upb',
'google/protobuf/timestamp.upb.h':
'protobuf_timestamp_upb',
'google/protobuf/wrappers.upb.h':
'protobuf_wrappers_upb',
'grpc/status.h':
'grpc_public_hdrs',
'src/proto/grpc/channelz/channelz.grpc.pb.h':
'//src/proto/grpc/channelz:channelz_proto',
'src/proto/grpc/core/stats.pb.h':
'//src/proto/grpc/core:stats_proto',
'src/proto/grpc/health/v1/health.upb.h':
'grpc_health_upb',
'src/proto/grpc/lb/v1/load_reporter.grpc.pb.h':
'//src/proto/grpc/lb/v1:load_reporter_proto',
'src/proto/grpc/lb/v1/load_balancer.upb.h':
'grpc_lb_upb',
'src/proto/grpc/reflection/v1alpha/reflection.grpc.pb.h':
'//src/proto/grpc/reflection/v1alpha:reflection_proto',
'src/proto/grpc/gcp/transport_security_common.upb.h':
'alts_upb',
'src/proto/grpc/gcp/altscontext.upb.h':
'alts_upb',
'src/proto/grpc/lookup/v1/rls.upb.h':
'rls_upb',
'src/proto/grpc/lookup/v1/rls_config.upb.h':
'rls_config_upb',
'src/proto/grpc/lookup/v1/rls_config.upbdefs.h':
'rls_config_upbdefs',
'src/proto/grpc/testing/xds/v3/csds.grpc.pb.h':
'//src/proto/grpc/testing/xds/v3:csds_proto',
'xds/data/orca/v3/orca_load_report.upb.h':
'xds_orca_upb',
'xds/service/orca/v3/orca.upb.h':
'xds_orca_service_upb',
'xds/type/v3/typed_struct.upb.h':
'xds_type_upb',
}
class FakeSelects:
def config_setting_group(self, **kwargs):
pass
num_cc_libraries = 0
num_opted_out_cc_libraries = 0
parsing_path = None
def grpc_cc_library(name,
hdrs=[],
public_hdrs=[],
srcs=[],
select_deps=None,
tags=[],
deps=[],
external_deps=[],
proto=None,
**kwargs):
global args
global num_cc_libraries
global num_opted_out_cc_libraries
global parsing_path
assert (parsing_path is not None)
name = '//%s:%s' % (parsing_path, name)
num_cc_libraries += 1
if select_deps or 'nofixdeps' in tags:
if args.whats_left and not select_deps and 'nofixdeps' not in tags:
num_opted_out_cc_libraries += 1
print("Not opted in: {}".format(name))
no_update.add(name)
scores[name] = len(public_hdrs + hdrs)
# avoid_dep is the internal way of saying prefer something else
# we add grpc_avoid_dep to allow internal grpc-only stuff to avoid each
# other, whilst not biasing dependent projects
if 'avoid_dep' in tags or 'grpc_avoid_dep' in tags:
avoidness[name] += 10
if proto:
proto_hdr = '%s%s' % ((parsing_path + '/' if parsing_path else ''),
proto.replace('.proto', '.pb.h'))
skip_headers[name].add(proto_hdr)
for hdr in hdrs + public_hdrs:
filename = '%s%s' % ((parsing_path + '/' if parsing_path else ''), hdr)
vendors[filename].append(name)
inc = set()
original_deps[name] = frozenset(deps)
original_external_deps[name] = frozenset(external_deps)
for src in hdrs + public_hdrs + srcs:
filename = '%s%s' % ((parsing_path + '/' if parsing_path else ''), src)
for line in open(filename):
m = re.search(r'^#include <(.*)>', line)
if m:
inc.add(m.group(1))
m = re.search(r'^#include "(.*)"', line)
if m:
inc.add(m.group(1))
if 'grpc::g_glip' in line or 'grpc::g_core_codegen_interface' in line:
needs_codegen_base_src.add(name)
consumes[name] = list(inc)
def buildozer(cmd, target):
buildozer_commands.append('%s|%s' % (cmd, target))
def buildozer_set_list(name, values, target, via=""):
if not values:
buildozer('remove %s' % name, target)
return
adjust = via if via else name
buildozer('set %s %s' % (adjust, ' '.join('"%s"' % s for s in values)),
target)
if via:
buildozer('remove %s' % name, target)
buildozer('rename %s %s' % (via, name), target)
def score_edit_distance(proposed, existing):
"""Score a proposed change primarily by edit distance"""
sum = 0
for p in proposed:
if p not in existing:
sum += 1
for e in existing:
if e not in proposed:
sum += 1
return sum
def total_score(proposal):
return sum(scores[dep] for dep in proposal)
def total_avoidness(proposal):
return sum(avoidness[dep] for dep in proposal)
def score_list_size(proposed, existing):
"""Score a proposed change primarily by number of dependencies"""
return len(proposed)
def score_best(proposed, existing):
"""Score a proposed change primarily by dependency score"""
return 0
SCORERS = {
'edit_distance': score_edit_distance,
'list_size': score_list_size,
'best': score_best,
}
parser = argparse.ArgumentParser(description='Fix build dependencies')
parser.add_argument('targets',
nargs='*',
default=[],
help='targets to fix (empty => all)')
parser.add_argument('--score',
type=str,
default='edit_distance',
help='scoring function to use: one of ' +
', '.join(SCORERS.keys()))
parser.add_argument('--whats_left',
action='store_true',
default=False,
help='show what is left to opt in')
parser.add_argument('--explain',
action='store_true',
default=False,
help='try to explain some decisions')
parser.add_argument(
'--why',
type=str,
default=None,
help='with --explain, target why a given dependency is needed')
args = parser.parse_args()
for dirname in [
"",
"src/cpp/ext/gcp",
"test/core/uri",
"test/core/util",
"test/core/end2end",
"test/core/event_engine",
"test/core/resource_quota",
]:
parsing_path = dirname
exec(
open('%sBUILD' % (dirname + '/' if dirname else ''), 'r').read(), {
'load': lambda filename, *args: None,
'licenses': lambda licenses: None,
'package': lambda **kwargs: None,
'exports_files': lambda files: None,
'config_setting': lambda **kwargs: None,
'selects': FakeSelects(),
'python_config_settings': lambda **kwargs: None,
'grpc_cc_binary': grpc_cc_library,
'grpc_cc_library': grpc_cc_library,
'grpc_cc_test': grpc_cc_library,
'grpc_fuzzer': grpc_cc_library,
'grpc_proto_fuzzer': grpc_cc_library,
'select': lambda d: d["//conditions:default"],
'grpc_end2end_tests': lambda: None,
'grpc_upb_proto_library': lambda name, **kwargs: None,
'grpc_upb_proto_reflection_library': lambda name, **kwargs: None,
'grpc_generate_one_off_targets': lambda: None,
'grpc_package': lambda **kwargs: None,
'filegroup': lambda name, **kwargs: None,
'sh_library': lambda name, **kwargs: None,
}, {})
parsing_path = None
if args.whats_left:
print("{}/{} libraries are opted in".format(
num_cc_libraries - num_opted_out_cc_libraries, num_cc_libraries))
def make_relative_path(dep, lib):
if lib is None:
return dep
lib_path = lib[:lib.rfind(':') + 1]
if dep.startswith(lib_path):
return dep[len(lib_path):]
return dep
if args.whats_left:
print("{}/{} libraries are opted in".format(
num_cc_libraries - num_opted_out_cc_libraries, num_cc_libraries))
# Keeps track of all possible sets of dependencies that could satify the
# problem. (models the list monad in Haskell!)
class Choices:
def __init__(self, library, substitutions):
self.library = library
self.to_add = []
self.to_remove = []
self.substitutions = substitutions
def add_one_of(self, choices, trigger):
if not choices:
return
choices = sum([self.apply_substitutions(choice) for choice in choices],
[])
if args.explain and (args.why is None or args.why in choices):
print("{}: Adding one of {} for {}".format(self.library, choices,
trigger))
self.to_add.append(
tuple(
make_relative_path(choice, self.library) for choice in choices))
def add(self, choice, trigger):
self.add_one_of([choice], trigger)
def remove(self, remove):
for remove in self.apply_substitutions(remove):
self.to_remove.append(make_relative_path(remove, self.library))
def apply_substitutions(self, dep):
if dep in self.substitutions:
return self.substitutions[dep]
return [dep]
def best(self, scorer):
choices = set()
choices.add(frozenset())
for add in sorted(set(self.to_add), key=lambda x: (len(x), x)):
new_choices = set()
for append_choice in add:
for choice in choices:
new_choices.add(choice.union([append_choice]))
choices = new_choices
for remove in sorted(set(self.to_remove)):
new_choices = set()
for choice in choices:
new_choices.add(choice.difference([remove]))
choices = new_choices
best = None
final_scorer = lambda x: (total_avoidness(x), scorer(x), total_score(x))
for choice in choices:
if best is None or final_scorer(choice) < final_scorer(best):
best = choice
return best
def make_library(library):
error = False
hdrs = sorted(consumes[library])
# we need a little trickery here since grpc_base has channel.cc, which calls grpc_init
# which is in grpc, which is illegal but hard to change
# once event engine lands we can clean this up
deps = Choices(library, {'//:grpc_base': ['//:grpc', '//:grpc_unsecure']}
if library.startswith('//test/') else {})
external_deps = Choices(None, {})
for hdr in hdrs:
if hdr in skip_headers[library]:
continue
if hdr == 'src/core/lib/profiling/stap_probes.h':
continue
if hdr.startswith('src/libfuzzer/'):
continue
if hdr == 'grpc/grpc.h' and not library.startswith('//:'):
# not the root build including grpc.h ==> //:grpc
deps.add_one_of(['//:grpc', '//:grpc_unsecure'], hdr)
continue
if hdr in INTERNAL_DEPS:
dep = INTERNAL_DEPS[hdr]
if not dep.startswith('//'):
dep = '//:' + dep
deps.add(dep, hdr)
continue
if hdr in vendors:
deps.add_one_of(vendors[hdr], hdr)
continue
if 'include/' + hdr in vendors:
deps.add_one_of(vendors['include/' + hdr], hdr)
continue
if '.' not in hdr:
# assume a c++ system include
continue
if hdr in EXTERNAL_DEPS:
external_deps.add(EXTERNAL_DEPS[hdr], hdr)
continue
if hdr.startswith('opencensus/'):
trail = hdr[len('opencensus/'):]
trail = trail[:trail.find('/')]
external_deps.add('opencensus-' + trail, hdr)
continue
if hdr.startswith('envoy/'):
path, file = os.path.split(hdr)
file = file.split('.')
path = path.split('/')
dep = '_'.join(path[:-1] + [file[1]])
deps.add(dep, hdr)
continue
if hdr.startswith('google/protobuf/') and not hdr.endswith('.upb.h'):
external_deps.add('protobuf_headers', hdr)
continue
if '/' not in hdr:
# assume a system include
continue
is_sys_include = False
for sys_path in [
'sys',
'arpa',
'gperftools',
'netinet',
'linux',
'android',
'mach',
'net',
'CoreFoundation',
]:
if hdr.startswith(sys_path + '/'):
is_sys_include = True
break
if is_sys_include:
# assume a system include
continue
print("# ERROR: can't categorize header: %s used by %s" %
(hdr, library))
error = True
if library in needs_codegen_base_src:
deps.add('grpc++_codegen_base_src', '#needs_codegen_base_src')
deps.remove(library)
deps = sorted(
deps.best(lambda x: SCORERS[args.score](x, original_deps[library])))
external_deps = sorted(
external_deps.best(lambda x: SCORERS[args.score]
(x, original_external_deps[library])))
return (library, error, deps, external_deps)
update_libraries = []
for library in sorted(consumes.keys()):
if library in no_update:
continue
if args.targets and library not in args.targets:
continue
update_libraries.append(library)
with multiprocessing.Pool(processes=multiprocessing.cpu_count()) as p:
updated_libraries = p.map(make_library, update_libraries, 1)
error = False
for library, lib_error, deps, external_deps in updated_libraries:
if lib_error:
error = True
continue
buildozer_set_list('external_deps', external_deps, library, via='deps')
buildozer_set_list('deps', deps, library)
run_buildozer.run_buildozer(buildozer_commands)
if error:
sys.exit(1)