1// Copyright 2018 Google Inc. All rights reserved. 2// 3// Licensed under the Apache License, Version 2.0 (the "License"); 4// you may not use this file except in compliance with the License. 5// You may obtain a copy of the License at 6// 7// http://www.apache.org/licenses/LICENSE-2.0 8// 9// Unless required by applicable law or agreed to in writing, software 10// distributed under the License is distributed on an "AS IS" BASIS, 11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12// See the License for the specific language governing permissions and 13// limitations under the License. 14 15package java 16 17import ( 18 "encoding/json" 19 "fmt" 20 21 "android/soong/android" 22) 23 24// This singleton generates android java dependency into to a json file. It does so for each 25// blueprint Android.bp resulting in a java.Module when either make, mm, mma, mmm or mmma is 26// called. Dependency info file is generated in $OUT/module_bp_java_depend.json. 27 28func init() { 29 android.RegisterSingletonType("jdeps_generator", jDepsGeneratorSingleton) 30} 31 32func jDepsGeneratorSingleton() android.Singleton { 33 return &jdepsGeneratorSingleton{} 34} 35 36type jdepsGeneratorSingleton struct { 37 outputPath android.Path 38} 39 40var _ android.SingletonMakeVarsProvider = (*jdepsGeneratorSingleton)(nil) 41 42const ( 43 jdepsJsonFileName = "module_bp_java_deps.json" 44) 45 46func (j *jdepsGeneratorSingleton) GenerateBuildActions(ctx android.SingletonContext) { 47 // (b/204397180) Generate module_bp_java_deps.json by default. 48 moduleInfos := make(map[string]android.IdeInfo) 49 50 ctx.VisitAllModules(func(module android.Module) { 51 if !module.Enabled() { 52 return 53 } 54 55 ideInfoProvider, ok := module.(android.IDEInfo) 56 if !ok { 57 return 58 } 59 name := ideInfoProvider.BaseModuleName() 60 ideModuleNameProvider, ok := module.(android.IDECustomizedModuleName) 61 if ok { 62 name = ideModuleNameProvider.IDECustomizedModuleName() 63 } 64 65 dpInfo := moduleInfos[name] 66 ideInfoProvider.IDEInfo(&dpInfo) 67 dpInfo.Deps = android.FirstUniqueStrings(dpInfo.Deps) 68 dpInfo.Srcs = android.FirstUniqueStrings(dpInfo.Srcs) 69 dpInfo.Aidl_include_dirs = android.FirstUniqueStrings(dpInfo.Aidl_include_dirs) 70 dpInfo.Jarjar_rules = android.FirstUniqueStrings(dpInfo.Jarjar_rules) 71 dpInfo.Jars = android.FirstUniqueStrings(dpInfo.Jars) 72 dpInfo.SrcJars = android.FirstUniqueStrings(dpInfo.SrcJars) 73 dpInfo.Paths = android.FirstUniqueStrings(dpInfo.Paths) 74 dpInfo.Static_libs = android.FirstUniqueStrings(dpInfo.Static_libs) 75 dpInfo.Libs = android.FirstUniqueStrings(dpInfo.Libs) 76 moduleInfos[name] = dpInfo 77 78 mkProvider, ok := module.(android.AndroidMkDataProvider) 79 if !ok { 80 return 81 } 82 data := mkProvider.AndroidMk() 83 if data.Class != "" { 84 dpInfo.Classes = append(dpInfo.Classes, data.Class) 85 } 86 87 if ctx.ModuleHasProvider(module, JavaInfoProvider) { 88 dep := ctx.ModuleProvider(module, JavaInfoProvider).(JavaInfo) 89 dpInfo.Installed_paths = append(dpInfo.Installed_paths, dep.ImplementationJars.Strings()...) 90 } 91 dpInfo.Classes = android.FirstUniqueStrings(dpInfo.Classes) 92 dpInfo.Installed_paths = android.FirstUniqueStrings(dpInfo.Installed_paths) 93 moduleInfos[name] = dpInfo 94 }) 95 96 jfpath := android.PathForOutput(ctx, jdepsJsonFileName) 97 err := createJsonFile(moduleInfos, jfpath) 98 if err != nil { 99 ctx.Errorf(err.Error()) 100 } 101 j.outputPath = jfpath 102 103 // This is necessary to satisfy the dangling rules check as this file is written by Soong rather than a rule. 104 ctx.Build(pctx, android.BuildParams{ 105 Rule: android.Touch, 106 Output: jfpath, 107 }) 108} 109 110func (j *jdepsGeneratorSingleton) MakeVars(ctx android.MakeVarsContext) { 111 if j.outputPath == nil { 112 return 113 } 114 115 ctx.DistForGoal("general-tests", j.outputPath) 116} 117 118func createJsonFile(moduleInfos map[string]android.IdeInfo, jfpath android.WritablePath) error { 119 buf, err := json.MarshalIndent(moduleInfos, "", "\t") 120 if err != nil { 121 return fmt.Errorf("JSON marshal of java deps failed: %s", err) 122 } 123 err = android.WriteFileToOutputDir(jfpath, buf, 0666) 124 if err != nil { 125 return fmt.Errorf("Writing java deps to %s failed: %s", jfpath.String(), err) 126 } 127 return nil 128} 129