1# Copyright (C) 2023 The Android Open Source Project 2# 3# Licensed under the Apache License, Version 2.0 (the "License"); 4# you may not use this file except in compliance with the License. 5# You may obtain a copy of the License at 6# 7# http://www.apache.org/licenses/LICENSE-2.0 8# 9# Unless required by applicable law or agreed to in writing, software 10# distributed under the License is distributed on an "AS IS" BASIS, 11# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12# See the License for the specific language governing permissions and 13# limitations under the License. 14 15load("//build/bazel/rules/java:versions.bzl", "java_versions") 16load("//build/bazel/rules/common:sdk_version.bzl", "sdk_version") 17load("//build/bazel/rules/common:api.bzl", "api") 18 19def _sdk_transition_impl(settings, attr): 20 host_platform = settings["//command_line_option:host_platform"] 21 default_java_version = str(java_versions.get_version()) 22 23 # TODO: this condition should really be "platform is not a device". 24 # More details on why we're treating java version for non-device platforms differently at the 25 # definition of the //build/bazel/rules/java:host_version build setting. 26 if all([host_platform == platform for platform in settings["//command_line_option:platforms"]]): 27 return { 28 "//build/bazel/rules/java:version": default_java_version, 29 "//build/bazel/rules/java:host_version": str(java_versions.get_version(attr.java_version)), 30 "//build/bazel/rules/java/sdk:kind": sdk_version.KIND_NONE, 31 "//build/bazel/rules/java/sdk:api_level": api.NONE_API_LEVEL, 32 } 33 sdk_spec = sdk_version.sdk_spec_from(attr.sdk_version) 34 java_version = str(java_versions.get_version(attr.java_version, sdk_spec.api_level)) 35 36 return { 37 "//build/bazel/rules/java:host_version": default_java_version, 38 "//build/bazel/rules/java:version": java_version, 39 "//build/bazel/rules/java/sdk:kind": sdk_spec.kind, 40 "//build/bazel/rules/java/sdk:api_level": sdk_spec.api_level, 41 } 42 43sdk_transition = transition( 44 implementation = _sdk_transition_impl, 45 inputs = [ 46 "//command_line_option:host_platform", 47 "//command_line_option:platforms", 48 ], 49 outputs = [ 50 "//build/bazel/rules/java:version", 51 "//build/bazel/rules/java:host_version", 52 "//build/bazel/rules/java/sdk:kind", 53 "//build/bazel/rules/java/sdk:api_level", 54 ], 55) 56 57sdk_transition_attrs = { 58 # This attribute must have a specific name to let the DexArchiveAspect propagate 59 # through it. 60 "exports": attr.label( 61 cfg = sdk_transition, 62 ), 63 "java_version": attr.string(), 64 "sdk_version": attr.string(), 65 "_allowlist_function_transition": attr.label( 66 default = "@bazel_tools//tools/allowlists/function_transition_allowlist", 67 ), 68} 69