diff options
Diffstat (limited to 'android/filegroup.go')
-rw-r--r-- | android/filegroup.go | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/android/filegroup.go b/android/filegroup.go new file mode 100644 index 00000000..b284ce02 --- /dev/null +++ b/android/filegroup.go @@ -0,0 +1,94 @@ +// Copyright 2016 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 android + +import ( + "io" + "strings" + "text/template" +) + +func init() { + RegisterModuleType("filegroup", FileGroupFactory) +} + +type fileGroupProperties struct { + // srcs lists files that will be included in this filegroup + Srcs []string + + Exclude_srcs []string + + // The base path to the files. May be used by other modules to determine which portion + // of the path to use. For example, when a filegroup is used as data in a cc_test rule, + // the base path is stripped off the path and the remaining path is used as the + // installation directory. + Path *string + + // Create a make variable with the specified name that contains the list of files in the + // filegroup, relative to the root of the source tree. + Export_to_make_var *string +} + +type fileGroup struct { + ModuleBase + properties fileGroupProperties + srcs Paths +} + +var _ SourceFileProducer = (*fileGroup)(nil) + +// filegroup modules contain a list of files, and can be used to export files across package +// boundaries. filegroups (and genrules) can be referenced from srcs properties of other modules +// using the syntax ":module". +func FileGroupFactory() Module { + module := &fileGroup{} + module.AddProperties(&module.properties) + InitAndroidModule(module) + return module +} + +func (fg *fileGroup) DepsMutator(ctx BottomUpMutatorContext) { + ExtractSourcesDeps(ctx, fg.properties.Srcs) + ExtractSourcesDeps(ctx, fg.properties.Exclude_srcs) +} + +func (fg *fileGroup) GenerateAndroidBuildActions(ctx ModuleContext) { + fg.srcs = ctx.ExpandSourcesSubDir(fg.properties.Srcs, fg.properties.Exclude_srcs, String(fg.properties.Path)) +} + +func (fg *fileGroup) Srcs() Paths { + return append(Paths{}, fg.srcs...) +} + +var androidMkTemplate = template.Must(template.New("filegroup").Parse(` +ifdef {{.makeVar}} + $(error variable {{.makeVar}} set by soong module is already set in make) +endif +{{.makeVar}} := {{.value}} +.KATI_READONLY := {{.makeVar}} +`)) + +func (fg *fileGroup) AndroidMk() AndroidMkData { + return AndroidMkData{ + Custom: func(w io.Writer, name, prefix, moduleDir string, data AndroidMkData) { + if makeVar := String(fg.properties.Export_to_make_var); makeVar != "" { + androidMkTemplate.Execute(w, map[string]string{ + "makeVar": makeVar, + "value": strings.Join(fg.srcs.Strings(), " "), + }) + } + }, + } +} |