The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#) https://grpc.io/
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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 = []
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/marshalling.h": "absl/flags:marshalling",
"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/numeric/int128.h": "absl/numeric:int128",
"absl/random/random.h": "absl/random",
"absl/random/distributions.h": "absl/random:distributions",
"absl/random/uniform_int_distribution.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",
"opentelemetry/context/context.h": "otel/api",
"opentelemetry/metrics/meter.h": "otel/api",
"opentelemetry/metrics/meter_provider.h": "otel/api",
"opentelemetry/metrics/provider.h": "otel/api",
"opentelemetry/metrics/sync_instruments.h": "otel/api",
"opentelemetry/nostd/shared_ptr.h": "otel/api",
"opentelemetry/nostd/unique_ptr.h": "otel/api",
"sdk/include/opentelemetry/sdk/metrics/meter_provider.h": "otel/sdk/src/metrics",
"ares.h": "cares",
"fuzztest/fuzztest.h": ["fuzztest", "fuzztest_main"],
"google/api/monitored_resource.pb.h": (
"google/api:monitored_resource_cc_proto"
),
"google/devtools/cloudtrace/v2/tracing.grpc.pb.h": (
"googleapis_trace_grpc_service"
),
"google/logging/v2/logging.grpc.pb.h": "googleapis_logging_grpc_service",
"google/logging/v2/logging.pb.h": "googleapis_logging_cc_proto",
"google/logging/v2/log_entry.pb.h": "googleapis_logging_cc_proto",
"google/monitoring/v3/metric_service.grpc.pb.h": (
"googleapis_monitoring_grpc_service"
),
"gmock/gmock.h": "gtest",
"gtest/gtest.h": "gtest",
"opencensus/exporters/stats/stackdriver/stackdriver_exporter.h": (
"opencensus-stats-stackdriver_exporter"
),
"opencensus/exporters/trace/stackdriver/stackdriver_exporter.h": (
"opencensus-trace-stackdriver_exporter"
),
"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",
"opencensus/trace/span_context.h": "opencensus-trace-span_context",
"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/base/string_view.h": "upb_lib",
"upb/collections/map.h": "upb_collections_lib",
"upb/def.h": "upb_lib",
"upb/json_encode.h": "upb_json_lib",
"upb/mem/arena.h": "upb_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 = {
"test/core/event_engine/fuzzing_event_engine/fuzzing_event_engine.h": (
"//test/core/event_engine/fuzzing_event_engine"
),
"test/core/event_engine/fuzzing_event_engine/fuzzing_event_engine.pb.h": "//test/core/event_engine/fuzzing_event_engine:fuzzing_event_engine_proto",
"test/core/experiments/test_experiments.h": "//test/core/experiments:test_experiments_lib",
"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/handshaker.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
# Convert the source or header target to a relative path.
def _get_filename(name, parsing_path):
filename = "%s%s" % (
(
parsing_path + "/"
if (parsing_path and not name.startswith("//"))
else ""
),
name,
)
filename = filename.replace("//:", "")
filename = filename.replace("//src/core:", "src/core/")
filename = filename.replace(
"//src/cpp/ext/filters/census:", "src/cpp/ext/filters/census/"
)
return filename
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:
vendors[_get_filename(hdr, parsing_path)].append(name)
inc = set()
original_deps[name] = frozenset(deps)
original_external_deps[name] = frozenset(external_deps)
for src in hdrs + public_hdrs + srcs:
for line in open(_get_filename(src, parsing_path)):
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))
consumes[name] = list(inc)
def grpc_proto_library(name, srcs, **kwargs):
global parsing_path
assert parsing_path is not None
name = "//%s:%s" % (parsing_path, name)
for src in srcs:
proto_hdr = src.replace(".proto", ".pb.h")
vendors[_get_filename(proto_hdr, parsing_path)].append(name)
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/core",
"src/cpp/ext/gcp",
"src/cpp/ext/otel",
"test/core/backoff",
"test/core/experiments",
"test/core/uri",
"test/core/util",
"test/core/end2end",
"test/core/event_engine",
"test/core/filters",
"test/core/promise",
"test/core/resource_quota",
"test/core/transport/chaotic_good",
"fuzztest",
"fuzztest/core/channel",
]:
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, visibility=None: None,
"bool_flag": lambda **kwargs: 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_core_end2end_test": lambda **kwargs: None,
"grpc_fuzzer": grpc_cc_library,
"grpc_fuzz_test": grpc_cc_library,
"grpc_proto_fuzzer": grpc_cc_library,
"grpc_proto_library": grpc_proto_library,
"select": lambda d: d["//conditions:default"],
"glob": lambda files: None,
"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_generate_one_off_internal_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
def final_scorer(x):
return (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 EventEngine 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 == "systemd/sd-daemon.h":
continue
if hdr == "src/core/lib/profiling/stap_probes.h":
continue
if hdr.startswith("src/libfuzzer/"):
continue
if hdr == "grpc/grpc.h" and library.startswith("//test:"):
# 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 isinstance(dep, list):
for d in dep:
deps.add(d, hdr)
else:
if not ("//" in dep):
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:
if isinstance(EXTERNAL_DEPS[hdr], list):
for dep in EXTERNAL_DEPS[hdr]:
external_deps.add(dep, hdr)
else:
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
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)
def main() -> None:
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)
if __name__ == "__main__":
main()