platform_build_soong/multitree/metadata.go
LaMont Jones 0c10e4dcc0 Parallelize singleton execution
Bug: 281536768
Test: manual, presubmits
Change-Id: I57fdc76ba6b277e88e196b506af87127a530fd37
2023-05-19 20:31:32 +00:00

74 lines
2.2 KiB
Go

// Copyright 2022 Google Inc. 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.
package multitree
import (
"android/soong/android"
"encoding/json"
)
func init() {
android.RegisterParallelSingletonType("update-meta", UpdateMetaSingleton)
}
func UpdateMetaSingleton() android.Singleton {
return &updateMetaSingleton{}
}
type jsonImported struct {
FileGroups map[string][]string `json:",omitempty"`
}
type metadataJsonFlags struct {
Imported jsonImported `json:",omitempty"`
Exported map[string][]string `json:",omitempty"`
}
type updateMetaSingleton struct {
importedModules []string
generatedMetadataFile android.OutputPath
}
func (s *updateMetaSingleton) GenerateBuildActions(ctx android.SingletonContext) {
metadata := metadataJsonFlags{
Imported: jsonImported{
FileGroups: make(map[string][]string),
},
Exported: make(map[string][]string),
}
ctx.VisitAllModules(func(module android.Module) {
if ifg, ok := module.(*importedFileGroup); ok {
metadata.Imported.FileGroups[ifg.BaseModuleName()] = ifg.properties.Imported
}
if e, ok := module.(ExportableModule); ok {
if e.IsExported() && e.Exportable() {
for tag, files := range e.TaggedOutputs() {
// TODO(b/219846705): refactor this to a dictionary
metadata.Exported[e.Name()+":"+tag] = append(metadata.Exported[e.Name()+":"+tag], files.Strings()...)
}
}
}
})
jsonStr, err := json.Marshal(metadata)
if err != nil {
ctx.Errorf(err.Error())
}
s.generatedMetadataFile = android.PathForOutput(ctx, "multitree", "metadata.json")
android.WriteFileRule(ctx, s.generatedMetadataFile, string(jsonStr))
}
func (s *updateMetaSingleton) MakeVars(ctx android.MakeVarsContext) {
ctx.Strict("MULTITREE_METADATA", s.generatedMetadataFile.String())
}