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# Copyright 2023 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.
"""Aspect to collect neverlink libraries in the transitive closure.
Used for determining the -libraryjars argument for Proguard. The compile-time classpath is
unsufficient here as those are ijars.
"""
load(
"//rules:utils.bzl",
"utils",
)
StarlarkAndroidNeverlinkInfo = provider(
doc = "Contains all neverlink libraries in the transitive closure.",
fields = {
"transitive_neverlink_libraries": "Depset of transitive neverlink jars",
},
)
_ATTRS = ["deps", "exports", "runtime_deps", "binary_under_test", "$instrumentation_test_runner"]
def _android_neverlink_aspect_impl(target, ctx):
# Only run on Android targets
if "android" not in getattr(ctx.rule.attr, "constraints", "") and not ctx.rule.kind.startswith("android_"):
return []
deps = []
for attr in _ATTRS:
if type(getattr(ctx.rule.attr, attr, None)) == "list":
deps.extend(getattr(ctx.rule.attr, attr))
direct_runtime_jars = depset(
target[JavaInfo].runtime_output_jars,
transitive = [target[AndroidLibraryResourceClassJarProvider].jars] if AndroidLibraryResourceClassJarProvider in target else [],
)
neverlink_libs = _collect_transitive_neverlink_libs(ctx, deps, direct_runtime_jars)
return [StarlarkAndroidNeverlinkInfo(transitive_neverlink_libraries = neverlink_libs)]
def _collect_transitive_neverlink_libs(ctx, deps, runtime_jars):
neverlink_runtime_jars = []
for provider in utils.collect_providers(StarlarkAndroidNeverlinkInfo, deps):
neverlink_runtime_jars.append(provider.transitive_neverlink_libraries)
if getattr(ctx.rule.attr, "neverlink", False):
neverlink_runtime_jars.append(runtime_jars)
for java_info in utils.collect_providers(JavaInfo, deps):
neverlink_runtime_jars.append(java_info.transitive_runtime_jars)
return depset([], transitive = neverlink_runtime_jars)
android_neverlink_aspect = aspect(
implementation = _android_neverlink_aspect_impl,
attr_aspects = _ATTRS,
)
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