120 lines
3.3 KiB
Go
120 lines
3.3 KiB
Go
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// Copyright 2021 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 multitree
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import (
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"android/soong/android"
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"fmt"
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"github.com/google/blueprint"
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)
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var (
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pctx = android.NewPackageContext("android/soong/multitree")
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)
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func init() {
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RegisterApiSurfaceBuildComponents(android.InitRegistrationContext)
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}
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var PrepareForTestWithApiSurface = android.FixtureRegisterWithContext(RegisterApiSurfaceBuildComponents)
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func RegisterApiSurfaceBuildComponents(ctx android.RegistrationContext) {
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ctx.RegisterModuleType("api_surface", ApiSurfaceFactory)
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}
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type ApiSurface struct {
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android.ModuleBase
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ExportableModuleBase
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properties apiSurfaceProperties
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allOutputs android.Paths
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taggedOutputs map[string]android.Paths
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}
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type apiSurfaceProperties struct {
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Contributions []string
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}
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func ApiSurfaceFactory() android.Module {
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module := &ApiSurface{}
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module.AddProperties(&module.properties)
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android.InitAndroidModule(module)
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InitExportableModule(module)
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return module
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}
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func (surface *ApiSurface) DepsMutator(ctx android.BottomUpMutatorContext) {
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if surface.properties.Contributions != nil {
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ctx.AddVariationDependencies(nil, nil, surface.properties.Contributions...)
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}
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}
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func (surface *ApiSurface) GenerateAndroidBuildActions(ctx android.ModuleContext) {
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contributionFiles := make(map[string]android.Paths)
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var allOutputs android.Paths
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ctx.WalkDeps(func(child, parent android.Module) bool {
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if contribution, ok := child.(ApiContribution); ok {
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copied := contribution.CopyFilesWithTag(ctx)
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for tag, files := range copied {
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contributionFiles[child.Name()+"#"+tag] = files
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}
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for _, paths := range copied {
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allOutputs = append(allOutputs, paths...)
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}
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return false // no transitive dependencies
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}
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return false
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})
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// phony target
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ctx.Build(pctx, android.BuildParams{
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Rule: blueprint.Phony,
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Output: android.PathForPhony(ctx, ctx.ModuleName()),
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Inputs: allOutputs,
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})
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surface.allOutputs = allOutputs
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surface.taggedOutputs = contributionFiles
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}
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func (surface *ApiSurface) OutputFiles(tag string) (android.Paths, error) {
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if tag != "" {
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return nil, fmt.Errorf("unknown tag: %q", tag)
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}
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return surface.allOutputs, nil
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}
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func (surface *ApiSurface) TaggedOutputs() map[string]android.Paths {
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return surface.taggedOutputs
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}
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func (surface *ApiSurface) Exportable() bool {
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return true
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}
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var _ android.OutputFileProducer = (*ApiSurface)(nil)
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var _ Exportable = (*ApiSurface)(nil)
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type ApiContribution interface {
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// copy files necessaryt to construct an API surface
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// For C, it will be map.txt and .h files
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// For Java, it will be api.txt
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CopyFilesWithTag(ctx android.ModuleContext) map[string]android.Paths // output paths
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// Generate Android.bp in out/ to use the exported .txt files
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// GenerateBuildFiles(ctx ModuleContext) Paths //output paths
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}
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