// Copyright 2016 Google Inc. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package android
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import (
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"io"
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"strings"
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"text/template"
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)
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func init() {
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RegisterModuleType("filegroup", FileGroupFactory)
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}
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type fileGroupProperties struct {
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// srcs lists files that will be included in this filegroup
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Srcs []string `android:"path"`
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Exclude_srcs []string `android:"path"`
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// The base path to the files. May be used by other modules to determine which portion
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// of the path to use. For example, when a filegroup is used as data in a cc_test rule,
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// the base path is stripped off the path and the remaining path is used as the
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// installation directory.
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Path *string
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// Create a make variable with the specified name that contains the list of files in the
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// filegroup, relative to the root of the source tree.
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Export_to_make_var *string
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}
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type fileGroup struct {
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ModuleBase
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properties fileGroupProperties
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srcs Paths
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}
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var _ SourceFileProducer = (*fileGroup)(nil)
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// filegroup contains a list of files that are referenced by other modules
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// properties (such as "srcs") using the syntax ":<name>". filegroup are
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// also be used to export files across package boundaries.
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func FileGroupFactory() Module {
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module := &fileGroup{}
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module.AddProperties(&module.properties)
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InitAndroidModule(module)
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return module
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}
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func (fg *fileGroup) GenerateAndroidBuildActions(ctx ModuleContext) {
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fg.srcs = PathsForModuleSrcExcludes(ctx, fg.properties.Srcs, fg.properties.Exclude_srcs)
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if fg.properties.Path != nil {
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fg.srcs = PathsWithModuleSrcSubDir(ctx, fg.srcs, String(fg.properties.Path))
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}
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}
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func (fg *fileGroup) Srcs() Paths {
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return append(Paths{}, fg.srcs...)
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}
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var androidMkTemplate = template.Must(template.New("filegroup").Parse(`
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ifdef {{.makeVar}}
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$(error variable {{.makeVar}} set by soong module is already set in make)
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endif
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{{.makeVar}} := {{.value}}
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.KATI_READONLY := {{.makeVar}}
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`))
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func (fg *fileGroup) AndroidMk() AndroidMkData {
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return AndroidMkData{
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Custom: func(w io.Writer, name, prefix, moduleDir string, data AndroidMkData) {
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if makeVar := String(fg.properties.Export_to_make_var); makeVar != "" {
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androidMkTemplate.Execute(w, map[string]string{
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"makeVar": makeVar,
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"value": strings.Join(fg.srcs.Strings(), " "),
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})
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}
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},
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}
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}
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