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// Copyright 2024 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 build_flags
import (
"fmt"
"android/soong/android"
)
const (
outJsonFileName = "build_flags.json"
)
func init() {
registerBuildFlagsModuleType(android.InitRegistrationContext)
}
func registerBuildFlagsModuleType(ctx android.RegistrationContext) {
ctx.RegisterModuleType("build_flags_json", buildFlagsFactory)
}
type buildFlags struct {
android.ModuleBase
outputPath android.Path
}
func buildFlagsFactory() android.Module {
module := &buildFlags{}
android.InitAndroidArchModule(module, android.DeviceSupported, android.MultilibCommon)
return module
}
func (m *buildFlags) GenerateAndroidBuildActions(ctx android.ModuleContext) {
// Read the build_flags_<partition>.json file generated by soong
// 'release-config' command.
srcPath := android.PathForOutput(ctx, "release-config", fmt.Sprintf("build_flags_%s.json", m.PartitionTag(ctx.DeviceConfig())))
outputPath := android.PathForModuleOut(ctx, outJsonFileName)
// The 'release-config' command is called for every build, and generates the
// build_flags_<partition>.json file.
// Update the output file only if the source file is changed.
ctx.Build(pctx, android.BuildParams{
Rule: android.CpIfChanged,
Input: srcPath,
Output: outputPath,
})
installPath := android.PathForModuleInstall(ctx, "etc")
ctx.InstallFile(installPath, outJsonFileName, outputPath)
m.outputPath = outputPath
}
func (m *buildFlags) AndroidMkEntries() []android.AndroidMkEntries {
return []android.AndroidMkEntries{android.AndroidMkEntries{
Class: "ETC",
OutputFile: android.OptionalPathForPath(m.outputPath),
}}
}
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