rules/flags/configurations.bzl

# Copyright 2024 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.
"""Configuration definitions."""

load("//rules:visibility.bzl", "PROJECT_VISIBILITY")
load("@bazel_skylib//rules:common_settings.bzl", "bool_setting", "int_setting")

visibility(PROJECT_VISIBILITY)

_CONFIG_VISIBILITY = [
    "//mobile_install:__subpackages__",
    "//rules:__subpackages__",
    "//test:__subpackages__",
    "//third_party/java_src/desugar_jdk_libs:__subpackages__",
    # Visibility so that release mi can depend on the released version of this file
    # We do not expect released mi to depend on this head target, though
    "//tools/android/mi/bin/release:__subpackages__",
    "//tools/android/mi/testing:__subpackages__",
]

def configurations(name = "configurations"):
    # Configuration setting for propagating an android_binary's min_sdk_version to its transitive
    # dependencies.
    int_setting(
        name = "min_sdk_version",
        build_setting_default = 0,
        scope = "target",
        visibility = _CONFIG_VISIBILITY,
    )

    # For Android builds that will run on a non-Android host (primarily Linux).
    # Initially set for dependencies of Robolectric tests but the scope may expand.
    # A separate configuration value is needed here as we do not want to transition
    # the build into Android, as it is not running on Android, but certain selects()
    # need to be able to resolve to Android.
    bool_setting(
        name = "android_host_hybrid_mode",
        build_setting_default = False,
        scope = "target",
        visibility = ["//visibility:public"],
    )

    # Dummy empty target
    native.filegroup(
        name = "dummy",
        srcs = [],
    )

    # Configuration setting for propagating an android_binary's bytecode_transformer to its
    # transitive dependencies. This is used to enable incremental bytecode transformations.
    native.label_flag(
        name = "bytecode_transformer",
        build_setting_default = ":dummy",
        visibility = _CONFIG_VISIBILITY,
    )