97 lines
2.9 KiB
Go
97 lines
2.9 KiB
Go
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// Copyright 2022 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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)
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var (
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nameSuffix = ".imported"
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)
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type MultitreeImportedModuleInterface interface {
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GetMultitreeImportedModuleName() string
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}
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func init() {
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android.RegisterModuleType("imported_filegroup", importedFileGroupFactory)
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android.PreArchMutators(RegisterMultitreePreArchMutators)
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}
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type importedFileGroupProperties struct {
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// Imported modules from the other components in a multi-tree
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Imported []string
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}
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type importedFileGroup struct {
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android.ModuleBase
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properties importedFileGroupProperties
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srcs android.Paths
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}
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func (ifg *importedFileGroup) Name() string {
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return ifg.BaseModuleName() + nameSuffix
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}
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func importedFileGroupFactory() android.Module {
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module := &importedFileGroup{}
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module.AddProperties(&module.properties)
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android.InitAndroidModule(module)
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return module
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}
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var _ MultitreeImportedModuleInterface = (*importedFileGroup)(nil)
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func (ifg *importedFileGroup) GetMultitreeImportedModuleName() string {
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// The base module name of the imported filegroup is used as the imported module name
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return ifg.BaseModuleName()
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}
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var _ android.SourceFileProducer = (*importedFileGroup)(nil)
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func (ifg *importedFileGroup) Srcs() android.Paths {
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return ifg.srcs
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}
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func (ifg *importedFileGroup) GenerateAndroidBuildActions(ctx android.ModuleContext) {
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// srcs from this module must not be used. Adding a dot path to avoid the empty
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// source failure. Still soong returns error when a module wants to build against
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// this source, which is intended.
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ifg.srcs = android.PathsForModuleSrc(ctx, []string{"."})
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}
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func RegisterMultitreePreArchMutators(ctx android.RegisterMutatorsContext) {
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ctx.BottomUp("multitree_imported_rename", MultitreeImportedRenameMutator).Parallel()
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}
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func MultitreeImportedRenameMutator(ctx android.BottomUpMutatorContext) {
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if m, ok := ctx.Module().(MultitreeImportedModuleInterface); ok {
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name := m.GetMultitreeImportedModuleName()
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if !ctx.OtherModuleExists(name) {
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// Provide an empty filegroup not to break the build while updating the metadata.
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// In other cases, soong will report an error to guide users to run 'm update-meta'
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// first.
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if !ctx.Config().TargetMultitreeUpdateMeta() {
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ctx.ModuleErrorf("\"%s\" filegroup must be imported.\nRun 'm update-meta' first to import the filegroup.", name)
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}
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ctx.Rename(name)
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}
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}
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}
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