platform_build_soong/java/platform_compat_config.go
atrost db25ac07a5 Create a module that extracts and installs compat_config.
Currently it extracts from the provided jar file compat/compat_config.xml
(generated by compat-changeid-annotation-processor) and installs on
/system/etc/sysconfig.
Future improvements:
 - Merge all the configs going for the system image into one, so that
   duplicate change ids across modules are failing the build instead of
   runtime.
 - Support uploading the config onto APEX for APEX modules.

Test: flashed device locally, config files found and read by
com.android.server.compat.CompatConfig.
Bug: 138222363

Change-Id: I64b11fdc466f746702e7e73f612794e024de2288
2019-08-06 19:21:46 +01:00

92 lines
2.8 KiB
Go

// Copyright 2019 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 java
import (
"android/soong/android"
)
func init() {
android.RegisterModuleType("platform_compat_config", platformCompatConfigFactory)
}
type platformCompatConfigProperties struct {
Src *string `android:"path"`
Prefix *string
}
type platformCompatConfig struct {
android.ModuleBase
properties platformCompatConfigProperties
installDirPath android.OutputPath
configFile android.OutputPath
}
func (p *platformCompatConfig) GenerateAndroidBuildActions(ctx android.ModuleContext) {
rule := android.NewRuleBuilder()
configFileName := String(p.properties.Prefix) + "_platform_compat_config.xml"
p.configFile = android.PathForModuleOut(ctx, configFileName).OutputPath
path := android.PathForModuleSrc(ctx, String(p.properties.Src))
// Use the empty config if the compat config file idoesn't exist (can happen if @ChangeId
// annotation is not used).
emptyConfig := `<?xml version="1.0" encoding="UTF-8" standalone="no"?><config/>`
configPath := `compat/compat_config.xml`
rule.Command().
Text(`unzip`).
Flag(`-l`).
Input(path).
Text(`| grep`).
Flag(`-q`).
Text(configPath).
Text(`; if [ "$?" = "0" ] ; then`).
Text(`unzip`).
Flag(`-qp`).
Input(path).
Text(configPath).
Text(`>`).
Output(p.configFile).
Text(`; else echo '`).
Text(emptyConfig).
Text(`' >`).
Output(p.configFile).
Text(`; fi`)
p.installDirPath = android.PathForModuleInstall(ctx, "etc", "sysconfig")
rule.Build(pctx, ctx, configFileName, "Extract compat/compat_config.xml and install it")
}
func (p *platformCompatConfig) AndroidMkEntries() android.AndroidMkEntries {
return android.AndroidMkEntries{
Class: "ETC",
OutputFile: android.OptionalPathForPath(p.configFile),
Include: "$(BUILD_PREBUILT)",
AddCustomEntries: func(name, prefix, moduleDir string, entries *android.AndroidMkEntries) {
entries.SetString("LOCAL_MODULE_PATH", "$(OUT_DIR)/"+p.installDirPath.RelPathString())
entries.SetString("LOCAL_INSTALLED_MODULE_STEM", p.configFile.Base())
},
}
}
func platformCompatConfigFactory() android.Module {
module := &platformCompatConfig{}
module.AddProperties(&module.properties)
android.InitAndroidArchModule(module, android.DeviceSupported, android.MultilibFirst)
return module
}