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# Lint as: python3
# Copyright 2020 The Bazel Authors. All rights reserved.
#
# 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.
"""General-purpose business logic."""
from typing import Tuple
# Do not edit this line. Copybara replaces it with PY2 migration helper..third_party.bazel.tools.ctexplain.bazel_api as bazel_api
from tools.ctexplain.types import ConfiguredTarget
def analyze_build(bazel: bazel_api.BazelApi, labels: Tuple[str, ...],
build_flags: Tuple[str, ...]) -> Tuple[ConfiguredTarget, ...]:
"""Gets a build invocation's configured targets.
Args:
bazel: API for invoking Bazel.
labels: The targets to build.
build_flags: The build flags to use.
Returns:
Configured targets representing the build.
Raises:
RuntimeError: On any invocation errors.
"""
cquery_args = [f'deps({",".join(labels)})']
cquery_args.extend(build_flags)
(success, stderr, cts) = bazel.cquery(cquery_args)
if not success:
raise RuntimeError("invocation failed: " + stderr.decode("utf-8"))
# We have to do separate calls to "bazel config" to get the actual configs
# from their hashes.
hashes_to_configs = {}
cts_with_configs = []
for ct in cts:
# Don't use dict.setdefault because that unconditionally calls get_config
# as one of its parameters and that's an expensive operation to waste.
if ct.config_hash not in hashes_to_configs:
hashes_to_configs[ct.config_hash] = bazel.get_config(ct.config_hash)
config = hashes_to_configs[ct.config_hash]
cts_with_configs.append(
ConfiguredTarget(ct.label, config, ct.config_hash,
ct.transitive_fragments))
return tuple(cts_with_configs)
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