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// Copyright 2018 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 java
import (
"encoding/json"
"fmt"
"android/soong/android"
)
// This singleton generates android java dependency into to a json file. It does so for each
// blueprint Android.bp resulting in a java.Module when either make, mm, mma, mmm or mmma is
// called. Dependency info file is generated in $OUT/module_bp_java_depend.json.
func init() {
android.RegisterSingletonType("jdeps_generator", jDepsGeneratorSingleton)
}
func jDepsGeneratorSingleton() android.Singleton {
return &jdepsGeneratorSingleton{}
}
type jdepsGeneratorSingleton struct {
outputPath android.Path
}
var _ android.SingletonMakeVarsProvider = (*jdepsGeneratorSingleton)(nil)
const (
// Environment variables used to modify behavior of this singleton.
envVariableCollectJavaDeps = "SOONG_COLLECT_JAVA_DEPS"
jdepsJsonFileName = "module_bp_java_deps.json"
)
func (j *jdepsGeneratorSingleton) GenerateBuildActions(ctx android.SingletonContext) {
if !ctx.Config().IsEnvTrue(envVariableCollectJavaDeps) {
return
}
moduleInfos := make(map[string]android.IdeInfo)
ctx.VisitAllModules(func(module android.Module) {
if !module.Enabled() {
return
}
ideInfoProvider, ok := module.(android.IDEInfo)
if !ok {
return
}
name := ideInfoProvider.BaseModuleName()
ideModuleNameProvider, ok := module.(android.IDECustomizedModuleName)
if ok {
name = ideModuleNameProvider.IDECustomizedModuleName()
}
dpInfo := moduleInfos[name]
ideInfoProvider.IDEInfo(&dpInfo)
dpInfo.Deps = android.FirstUniqueStrings(dpInfo.Deps)
dpInfo.Srcs = android.FirstUniqueStrings(dpInfo.Srcs)
dpInfo.Aidl_include_dirs = android.FirstUniqueStrings(dpInfo.Aidl_include_dirs)
dpInfo.Jarjar_rules = android.FirstUniqueStrings(dpInfo.Jarjar_rules)
dpInfo.Jars = android.FirstUniqueStrings(dpInfo.Jars)
dpInfo.SrcJars = android.FirstUniqueStrings(dpInfo.SrcJars)
dpInfo.Paths = android.FirstUniqueStrings(dpInfo.Paths)
moduleInfos[name] = dpInfo
mkProvider, ok := module.(android.AndroidMkDataProvider)
if !ok {
return
}
data := mkProvider.AndroidMk()
if data.Class != "" {
dpInfo.Classes = append(dpInfo.Classes, data.Class)
}
if ctx.ModuleHasProvider(module, JavaInfoProvider) {
dep := ctx.ModuleProvider(module, JavaInfoProvider).(JavaInfo)
dpInfo.Installed_paths = append(dpInfo.Installed_paths, dep.ImplementationJars.Strings()...)
}
dpInfo.Classes = android.FirstUniqueStrings(dpInfo.Classes)
dpInfo.Installed_paths = android.FirstUniqueStrings(dpInfo.Installed_paths)
moduleInfos[name] = dpInfo
})
jfpath := android.PathForOutput(ctx, jdepsJsonFileName)
err := createJsonFile(moduleInfos, jfpath)
if err != nil {
ctx.Errorf(err.Error())
}
j.outputPath = jfpath
// This is necessary to satisfy the dangling rules check as this file is written by Soong rather than a rule.
ctx.Build(pctx, android.BuildParams{
Rule: android.Touch,
Output: jfpath,
})
}
func (j *jdepsGeneratorSingleton) MakeVars(ctx android.MakeVarsContext) {
if j.outputPath == nil {
return
}
ctx.DistForGoal("general-tests", j.outputPath)
}
func createJsonFile(moduleInfos map[string]android.IdeInfo, jfpath android.WritablePath) error {
buf, err := json.MarshalIndent(moduleInfos, "", "\t")
if err != nil {
return fmt.Errorf("JSON marshal of java deps failed: %s", err)
}
err = android.WriteFileToOutputDir(jfpath, buf, 0666)
if err != nil {
return fmt.Errorf("Writing java deps to %s failed: %s", jfpath.String(), err)
}
return nil
}
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