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 // Prevent including both prebuilts and matching source modules when one replaces the other. 56 if !android.IsModulePreferred(module) { 57 return 58 } 59 60 ideInfoProvider, ok := module.(android.IDEInfo) 61 if !ok { 62 return 63 } 64 name := ideInfoProvider.BaseModuleName() 65 ideModuleNameProvider, ok := module.(android.IDECustomizedModuleName) 66 if ok { 67 name = ideModuleNameProvider.IDECustomizedModuleName() 68 } 69 70 dpInfo := moduleInfos[name] 71 ideInfoProvider.IDEInfo(&dpInfo) 72 dpInfo.Deps = android.FirstUniqueStrings(dpInfo.Deps) 73 dpInfo.Srcs = android.FirstUniqueStrings(dpInfo.Srcs) 74 dpInfo.Aidl_include_dirs = android.FirstUniqueStrings(dpInfo.Aidl_include_dirs) 75 dpInfo.Jarjar_rules = android.FirstUniqueStrings(dpInfo.Jarjar_rules) 76 dpInfo.Jars = android.FirstUniqueStrings(dpInfo.Jars) 77 dpInfo.SrcJars = android.FirstUniqueStrings(dpInfo.SrcJars) 78 dpInfo.Paths = android.FirstUniqueStrings(dpInfo.Paths) 79 dpInfo.Static_libs = android.FirstUniqueStrings(dpInfo.Static_libs) 80 dpInfo.Libs = android.FirstUniqueStrings(dpInfo.Libs) 81 moduleInfos[name] = dpInfo 82 83 mkProvider, ok := module.(android.AndroidMkDataProvider) 84 if !ok { 85 return 86 } 87 data := mkProvider.AndroidMk() 88 if data.Class != "" { 89 dpInfo.Classes = append(dpInfo.Classes, data.Class) 90 } 91 92 if ctx.ModuleHasProvider(module, JavaInfoProvider) { 93 dep := ctx.ModuleProvider(module, JavaInfoProvider).(JavaInfo) 94 dpInfo.Installed_paths = append(dpInfo.Installed_paths, dep.ImplementationJars.Strings()...) 95 } 96 dpInfo.Classes = android.FirstUniqueStrings(dpInfo.Classes) 97 dpInfo.Installed_paths = android.FirstUniqueStrings(dpInfo.Installed_paths) 98 moduleInfos[name] = dpInfo 99 }) 100 101 jfpath := android.PathForOutput(ctx, jdepsJsonFileName) 102 err := createJsonFile(moduleInfos, jfpath) 103 if err != nil { 104 ctx.Errorf(err.Error()) 105 } 106 j.outputPath = jfpath 107 108 // This is necessary to satisfy the dangling rules check as this file is written by Soong rather than a rule. 109 ctx.Build(pctx, android.BuildParams{ 110 Rule: android.Touch, 111 Output: jfpath, 112 }) 113} 114 115func (j *jdepsGeneratorSingleton) MakeVars(ctx android.MakeVarsContext) { 116 if j.outputPath == nil { 117 return 118 } 119 120 ctx.DistForGoal("general-tests", j.outputPath) 121} 122 123func createJsonFile(moduleInfos map[string]android.IdeInfo, jfpath android.WritablePath) error { 124 buf, err := json.MarshalIndent(moduleInfos, "", "\t") 125 if err != nil { 126 return fmt.Errorf("JSON marshal of java deps failed: %s", err) 127 } 128 err = android.WriteFileToOutputDir(jfpath, buf, 0666) 129 if err != nil { 130 return fmt.Errorf("Writing java deps to %s failed: %s", jfpath.String(), err) 131 } 132 return nil 133} 134