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// Copyright (C) 2019 The LineageOS 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 android
import (
"strings"
)
// Keys are bootjar name, value is whether or not
// we've marked a module as being a provider for it.
var jarMap map[string]bool
func init() {
PreArchMutators(RegisterBootJarMutators)
}
// Note: registration function is structured this way so that it can be included
// from soong module tests.
func RegisterBootJarMutators(ctx RegisterMutatorsContext) {
// Note: can't use Parallel() since we touch global jarMap
ctx.TopDown("bootjar_exportednamespace", bootJarMutatorExportedNamespace)
ctx.TopDown("bootjar_anynamespace", bootJarMutatorAnyNamespace)
}
func mutatorInit(mctx TopDownMutatorContext) {
// Did we init already ?
if jarMap != nil {
return
}
jarMap = make(map[string]bool)
for _, moduleName := range mctx.Config().BootJars() {
jarMap[moduleName] = false
}
}
// Mark modules in soong exported namespace as providing a boot jar.
func bootJarMutatorExportedNamespace(mctx TopDownMutatorContext) {
bootJarMutator(mctx, true)
}
// Mark modules in any namespace (incl root) as providing a boot jar.
func bootJarMutatorAnyNamespace(mctx TopDownMutatorContext) {
bootJarMutator(mctx, false)
}
func bootJarMutator(mctx TopDownMutatorContext, requireExportedNamespace bool) {
mutatorInit(mctx)
module, ok := mctx.Module().(Module)
if !ok {
// Not a proper module
return
}
// Does this module produce a dex jar ?
if _, ok := module.(interface{ DexJar() Path }); !ok {
// No
return
}
// If jarMap is empty we must be running in a test so
// set boot jar provide to true for all modules.
if len(jarMap) == 0 {
module.base().commonProperties.BootJarProvider = true
return
}
name := mctx.ModuleName()
dir := mctx.ModuleDir()
// Special treatment for hiddenapi modules - create extra
// jarMap entries if needed.
baseName := strings.TrimSuffix(name, "-hiddenapi")
if name != baseName {
_, baseIsBootJar := jarMap[baseName]
_, alreadyExists := jarMap[name]
if baseIsBootJar && !alreadyExists {
// This is a hidden api module whose base name exists in the boot jar list
// and we've not visited it before. Create a map entry for it.
jarMap[name] = false
}
}
// Does this module match the name of a boot jar ?
if found, exists := jarMap[name]; !exists || found {
// No
return
}
if requireExportedNamespace {
for _, n := range mctx.Config().ExportedNamespaces() {
if strings.HasPrefix(dir, n) {
jarMap[name] = true
module.base().commonProperties.BootJarProvider = true
break
}
}
} else {
jarMap[name] = true
module.base().commonProperties.BootJarProvider = true
}
return
}
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