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// 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 (
"android/soong/bazel"
"strings"
)
func init() {
RegisterModuleType("filegroup", FileGroupFactory)
RegisterBp2BuildMutator("filegroup", FilegroupBp2Build)
}
var PrepareForTestWithFilegroup = FixtureRegisterWithContext(func(ctx RegistrationContext) {
ctx.RegisterModuleType("filegroup", FileGroupFactory)
})
// https://docs.bazel.build/versions/master/be/general.html#filegroup
type bazelFilegroupAttributes struct {
Srcs bazel.LabelListAttribute
}
type bazelFilegroup struct {
BazelTargetModuleBase
bazelFilegroupAttributes
}
func BazelFileGroupFactory() Module {
module := &bazelFilegroup{}
module.AddProperties(&module.bazelFilegroupAttributes)
InitBazelTargetModule(module)
return module
}
func (bfg *bazelFilegroup) Name() string {
return bfg.BaseModuleName()
}
func (bfg *bazelFilegroup) GenerateAndroidBuildActions(ctx ModuleContext) {}
func FilegroupBp2Build(ctx TopDownMutatorContext) {
fg, ok := ctx.Module().(*fileGroup)
if !ok || !fg.ConvertWithBp2build(ctx) {
return
}
srcs := bazel.MakeLabelListAttribute(
BazelLabelForModuleSrcExcludes(ctx, fg.properties.Srcs, fg.properties.Exclude_srcs))
attrs := &bazelFilegroupAttributes{
Srcs: srcs,
}
props := bazel.BazelTargetModuleProperties{Rule_class: "filegroup"}
ctx.CreateBazelTargetModule(BazelFileGroupFactory, fg.Name(), props, attrs)
}
type fileGroupProperties struct {
// srcs lists files that will be included in this filegroup
Srcs []string `android:"path"`
Exclude_srcs []string `android:"path"`
// 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
BazelModuleBase
properties fileGroupProperties
srcs Paths
}
var _ SourceFileProducer = (*fileGroup)(nil)
// filegroup contains a list of files that are referenced by other modules
// properties (such as "srcs") using the syntax ":<name>". filegroup are
// also be used to export files across package boundaries.
func FileGroupFactory() Module {
module := &fileGroup{}
module.AddProperties(&module.properties)
InitAndroidModule(module)
InitBazelModule(module)
return module
}
func (fg *fileGroup) generateBazelBuildActions(ctx ModuleContext) bool {
if !fg.MixedBuildsEnabled(ctx) {
return false
}
bazelCtx := ctx.Config().BazelContext
filePaths, ok := bazelCtx.GetOutputFiles(fg.GetBazelLabel(ctx, fg), ctx.Arch().ArchType)
if !ok {
return false
}
bazelOuts := make(Paths, 0, len(filePaths))
for _, p := range filePaths {
src := PathForBazelOut(ctx, p)
bazelOuts = append(bazelOuts, src)
}
fg.srcs = bazelOuts
return true
}
func (fg *fileGroup) GenerateAndroidBuildActions(ctx ModuleContext) {
if fg.generateBazelBuildActions(ctx) {
return
}
fg.srcs = PathsForModuleSrcExcludes(ctx, fg.properties.Srcs, fg.properties.Exclude_srcs)
if fg.properties.Path != nil {
fg.srcs = PathsWithModuleSrcSubDir(ctx, fg.srcs, String(fg.properties.Path))
}
}
func (fg *fileGroup) Srcs() Paths {
return append(Paths{}, fg.srcs...)
}
func (fg *fileGroup) MakeVars(ctx MakeVarsModuleContext) {
if makeVar := String(fg.properties.Export_to_make_var); makeVar != "" {
ctx.StrictRaw(makeVar, strings.Join(fg.srcs.Strings(), " "))
}
}
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