8bea267caf
* We are interested mostly in the conversion the `default_applicable_licenses` attribute, as `default_visibility` cannot be handled until every module's `visibility` is handled. * Several referenced license modules had to be manually enabled for conversion, and likewise a few trivial Android.bp containing only package and license modules. * As Bazel allows only a single `package` rule, the package rules in a manually converted BUILD.bazel files were removed (in external/protobuf and prebuilts/clang/host/linux-x86 trees). * The converted package rule is emitted before the `load` statements per Bazel documentation. Bug: 190817312 Test: treehugger Change-Id: If8bf6fee1580177de3bb402923615bcd48923ed2
136 lines
4.3 KiB
Go
136 lines
4.3 KiB
Go
// Copyright 2020 Google Inc. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package android
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import (
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"android/soong/bazel"
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"fmt"
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"github.com/google/blueprint"
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"os"
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)
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type licenseKindDependencyTag struct {
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blueprint.BaseDependencyTag
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}
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var (
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licenseKindTag = licenseKindDependencyTag{}
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)
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func init() {
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RegisterLicenseBuildComponents(InitRegistrationContext)
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}
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// Register the license module type.
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func RegisterLicenseBuildComponents(ctx RegistrationContext) {
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ctx.RegisterModuleType("license", LicenseFactory)
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}
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type licenseProperties struct {
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// Specifies the kinds of license that apply.
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License_kinds []string
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// Specifies a short copyright notice to use for the license.
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Copyright_notice *string
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// Specifies the path or label for the text of the license.
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License_text []string `android:"path"`
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// Specifies the package name to which the license applies.
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Package_name *string
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// Specifies where this license can be used
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Visibility []string
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}
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var _ Bazelable = &licenseModule{}
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type licenseModule struct {
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ModuleBase
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DefaultableModuleBase
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SdkBase
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BazelModuleBase
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properties licenseProperties
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}
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type bazelLicenseAttributes struct {
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License_kinds []string
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Copyright_notice *string
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License_text bazel.LabelAttribute
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Package_name *string
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Visibility []string
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}
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func (m *licenseModule) ConvertWithBp2build(ctx TopDownMutatorContext) {
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attrs := &bazelLicenseAttributes{
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License_kinds: m.properties.License_kinds,
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Copyright_notice: m.properties.Copyright_notice,
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Package_name: m.properties.Package_name,
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Visibility: m.properties.Visibility,
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}
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// TODO(asmundak): Soong supports multiple license texts while Bazel's license
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// rule does not. Have android_license create a genrule to concatenate multiple
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// license texts.
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if len(m.properties.License_text) > 1 && ctx.Config().IsEnvTrue("BP2BUILD_VERBOSE") {
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fmt.Fprintf(os.Stderr, "warning: using only the first license_text item from //%s:%s\n",
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ctx.ModuleDir(), m.Name())
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}
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if len(m.properties.License_text) >= 1 {
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attrs.License_text.SetValue(BazelLabelForModuleSrcSingle(ctx, m.properties.License_text[0]))
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}
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ctx.CreateBazelTargetModule(
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bazel.BazelTargetModuleProperties{
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Rule_class: "android_license",
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Bzl_load_location: "//build/bazel/rules/license:license.bzl",
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},
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CommonAttributes{
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Name: m.Name(),
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},
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attrs)
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}
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func (m *licenseModule) DepsMutator(ctx BottomUpMutatorContext) {
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ctx.AddVariationDependencies(nil, licenseKindTag, m.properties.License_kinds...)
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}
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func (m *licenseModule) GenerateAndroidBuildActions(ctx ModuleContext) {
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// license modules have no licenses, but license_kinds must refer to license_kind modules
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mergeStringProps(&m.base().commonProperties.Effective_licenses, ctx.ModuleName())
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namePathProps(&m.base().commonProperties.Effective_license_text, m.properties.Package_name, PathsForModuleSrc(ctx, m.properties.License_text)...)
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for _, module := range ctx.GetDirectDepsWithTag(licenseKindTag) {
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if lk, ok := module.(*licenseKindModule); ok {
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mergeStringProps(&m.base().commonProperties.Effective_license_conditions, lk.properties.Conditions...)
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mergeStringProps(&m.base().commonProperties.Effective_license_kinds, ctx.OtherModuleName(module))
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} else {
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ctx.ModuleErrorf("license_kinds property %q is not a license_kind module", ctx.OtherModuleName(module))
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}
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}
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}
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func LicenseFactory() Module {
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module := &licenseModule{}
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base := module.base()
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module.AddProperties(&base.nameProperties, &module.properties, &base.commonProperties.BazelConversionStatus)
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// The visibility property needs to be checked and parsed by the visibility module.
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setPrimaryVisibilityProperty(module, "visibility", &module.properties.Visibility)
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InitSdkAwareModule(module)
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initAndroidModuleBase(module)
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InitDefaultableModule(module)
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InitBazelModule(module)
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return module
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}
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