1 // Copyright (C) 2019 The Android Open Source Project 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 15 package fs_config 16 17 import ( 18 "android/soong/android" 19 ) 20 21 var pctx = android.NewPackageContext("android/soong/fs_config") 22 23 func init() { 24 android.RegisterModuleType("target_fs_config_gen_filegroup", targetFSConfigGenFactory) 25 } 26 27 // target_fs_config_gen_filegroup is used to expose the files pointed to by TARGET_FS_CONFIG_GEN to 28 // genrules in Soong. If TARGET_FS_CONFIG_GEN is empty, it will export an empty file instead. 29 func targetFSConfigGenFactory() android.Module { 30 module := &targetFSConfigGen{} 31 android.InitAndroidModule(module) 32 return module 33 } 34 35 var _ android.SourceFileProducer = (*targetFSConfigGen)(nil) 36 37 type targetFSConfigGen struct { 38 android.ModuleBase 39 paths android.Paths 40 } 41 42 func (targetFSConfigGen) DepsMutator(ctx android.BottomUpMutatorContext) {} 43 44 func (t *targetFSConfigGen) GenerateAndroidBuildActions(ctx android.ModuleContext) { 45 if ret := ctx.DeviceConfig().TargetFSConfigGen(); len(ret) != 0 { 46 t.paths = android.PathsForSource(ctx, ret) 47 } else { 48 path := android.PathForModuleGen(ctx, "empty") 49 t.paths = android.Paths{path} 50 51 rule := android.NewRuleBuilder() 52 rule.Command().Text("rm -rf").Output(path) 53 rule.Command().Text("touch").Output(path) 54 rule.Build(pctx, ctx, "fs_config_empty", "create empty file") 55 } 56 } 57 58 func (t *targetFSConfigGen) Srcs() android.Paths { 59 return t.paths 60 } 61
