1// Copyright 2016 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 android 16 17import ( 18 "io" 19 "strings" 20 "text/template" 21) 22 23func init() { 24 RegisterModuleType("filegroup", FileGroupFactory) 25} 26 27type fileGroupProperties struct { 28 // srcs lists files that will be included in this filegroup 29 Srcs []string `android:"path"` 30 31 Exclude_srcs []string `android:"path"` 32 33 // The base path to the files. May be used by other modules to determine which portion 34 // of the path to use. For example, when a filegroup is used as data in a cc_test rule, 35 // the base path is stripped off the path and the remaining path is used as the 36 // installation directory. 37 Path *string 38 39 // Create a make variable with the specified name that contains the list of files in the 40 // filegroup, relative to the root of the source tree. 41 Export_to_make_var *string 42} 43 44type fileGroup struct { 45 ModuleBase 46 properties fileGroupProperties 47 srcs Paths 48} 49 50var _ SourceFileProducer = (*fileGroup)(nil) 51 52// filegroup contains a list of files that are referenced by other modules 53// properties (such as "srcs") using the syntax ":<name>". filegroup are 54// also be used to export files across package boundaries. 55func FileGroupFactory() Module { 56 module := &fileGroup{} 57 module.AddProperties(&module.properties) 58 InitAndroidModule(module) 59 return module 60} 61 62func (fg *fileGroup) GenerateAndroidBuildActions(ctx ModuleContext) { 63 fg.srcs = PathsForModuleSrcExcludes(ctx, fg.properties.Srcs, fg.properties.Exclude_srcs) 64 65 if fg.properties.Path != nil { 66 fg.srcs = PathsWithModuleSrcSubDir(ctx, fg.srcs, String(fg.properties.Path)) 67 } 68} 69 70func (fg *fileGroup) Srcs() Paths { 71 return append(Paths{}, fg.srcs...) 72} 73 74var androidMkTemplate = template.Must(template.New("filegroup").Parse(` 75ifdef {{.makeVar}} 76 $(error variable {{.makeVar}} set by soong module is already set in make) 77endif 78{{.makeVar}} := {{.value}} 79.KATI_READONLY := {{.makeVar}} 80`)) 81 82func (fg *fileGroup) AndroidMk() AndroidMkData { 83 return AndroidMkData{ 84 Custom: func(w io.Writer, name, prefix, moduleDir string, data AndroidMkData) { 85 if makeVar := String(fg.properties.Export_to_make_var); makeVar != "" { 86 androidMkTemplate.Execute(w, map[string]string{ 87 "makeVar": makeVar, 88 "value": strings.Join(fg.srcs.Strings(), " "), 89 }) 90 } 91 }, 92 } 93} 94