platform_build/tools/fs_config/fs_config.go

61 lines
1.9 KiB
Go

// Copyright (C) 2019 The Android Open Source Project
//
// 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 fs_config
import (
"android/soong/android"
)
var pctx = android.NewPackageContext("android/soong/fs_config")
func init() {
android.RegisterModuleType("target_fs_config_gen_filegroup", targetFSConfigGenFactory)
}
// target_fs_config_gen_filegroup is used to expose the files pointed to by TARGET_FS_CONFIG_GEN to
// genrules in Soong. If TARGET_FS_CONFIG_GEN is empty, it will export an empty file instead.
func targetFSConfigGenFactory() android.Module {
module := &targetFSConfigGen{}
android.InitAndroidModule(module)
return module
}
var _ android.SourceFileProducer = (*targetFSConfigGen)(nil)
type targetFSConfigGen struct {
android.ModuleBase
paths android.Paths
}
func (targetFSConfigGen) DepsMutator(ctx android.BottomUpMutatorContext) {}
func (t *targetFSConfigGen) GenerateAndroidBuildActions(ctx android.ModuleContext) {
if ret := ctx.DeviceConfig().TargetFSConfigGen(); len(ret) != 0 {
t.paths = android.PathsForSource(ctx, ret)
} else {
path := android.PathForModuleGen(ctx, "empty")
t.paths = android.Paths{path}
rule := android.NewRuleBuilder(pctx, ctx)
rule.Command().Text("rm -rf").Output(path)
rule.Command().Text("touch").Output(path)
rule.Build("fs_config_empty", "create empty file")
}
}
func (t *targetFSConfigGen) Srcs() android.Paths {
return t.paths
}