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// Copyright (C) 2024 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 filesystem
import (
"android/soong/android"
"strconv"
"github.com/google/blueprint"
"github.com/google/blueprint/proptools"
)
func init() {
pctx.HostBinToolVariable("aconfig", "aconfig")
}
var (
aconfigCreateStorage = pctx.AndroidStaticRule("aconfig_create_storage", blueprint.RuleParams{
Command: `$aconfig create-storage --container $container --file $fileType --out $out --cache $in --version $version`,
CommandDeps: []string{"$aconfig"},
}, "container", "fileType", "version")
)
type installedAconfigFlagsInfo struct {
aconfigFiles android.Paths
}
var installedAconfigFlagsProvider = blueprint.NewProvider[installedAconfigFlagsInfo]()
type importAconfigDepDag struct {
blueprint.BaseDependencyTag
}
var importAconfigDependencyTag = interPartitionDepTag{}
func (f *filesystem) buildAconfigFlagsFiles(
ctx android.ModuleContext,
builder *android.RuleBuilder,
specs map[string]android.PackagingSpec,
dir android.OutputPath,
fullInstallPaths *[]FullInstallPathInfo,
) {
var caches []android.Path
for _, ps := range specs {
caches = append(caches, ps.GetAconfigPaths()...)
}
ctx.VisitDirectDepsWithTag(importAconfigDependencyTag, func(m android.Module) {
info, ok := android.OtherModuleProvider(ctx, m, installedAconfigFlagsProvider)
if !ok {
ctx.ModuleErrorf("expected dependency %s to have an installedAconfigFlagsProvider", m.Name())
return
}
caches = append(caches, info.aconfigFiles...)
})
caches = android.SortedUniquePaths(caches)
android.SetProvider(ctx, installedAconfigFlagsProvider, installedAconfigFlagsInfo{
aconfigFiles: caches,
})
if !proptools.Bool(f.properties.Gen_aconfig_flags_pb) {
return
}
container := f.PartitionType()
aconfigFlagsPb := android.PathForModuleOut(ctx, "aconfig", "aconfig_flags.pb")
aconfigFlagsPbBuilder := android.NewRuleBuilder(pctx, ctx)
cmd := aconfigFlagsPbBuilder.Command().
BuiltTool("aconfig").
Text(" dump-cache --dedup --format protobuf --out").
Output(aconfigFlagsPb).
Textf("--filter container:%s+state:ENABLED", container).
Textf("--filter container:%s+permission:READ_WRITE", container)
for _, cache := range caches {
cmd.FlagWithInput("--cache ", cache)
}
aconfigFlagsPbBuilder.Build("aconfig_flags_pb", "build aconfig_flags.pb")
installAconfigFlagsPath := dir.Join(ctx, "etc", "aconfig_flags.pb")
builder.Command().Text("mkdir -p ").Text(dir.Join(ctx, "etc").String())
builder.Command().Text("cp").Input(aconfigFlagsPb).Text(installAconfigFlagsPath.String())
*fullInstallPaths = append(*fullInstallPaths, FullInstallPathInfo{
FullInstallPath: android.PathForModuleInPartitionInstall(ctx, f.PartitionType(), "etc/aconfig_flags.pb"),
SourcePath: aconfigFlagsPb,
})
f.appendToEntry(ctx, installAconfigFlagsPath)
// To enable fingerprint, we need to have v2 storage files. The default version is 1.
storageFilesVersion := 1
if ctx.Config().ReleaseFingerprintAconfigPackages() {
storageFilesVersion = 2
}
installAconfigStorageDir := dir.Join(ctx, "etc", "aconfig")
builder.Command().Text("mkdir -p").Text(installAconfigStorageDir.String())
generatePartitionAconfigStorageFile := func(fileType, fileName string) {
outPath := android.PathForModuleOut(ctx, "aconfig", fileName)
installPath := installAconfigStorageDir.Join(ctx, fileName)
ctx.Build(pctx, android.BuildParams{
Rule: aconfigCreateStorage,
Input: aconfigFlagsPb,
Output: outPath,
Args: map[string]string{
"container": container,
"fileType": fileType,
"version": strconv.Itoa(storageFilesVersion),
},
})
builder.Command().
Text("cp").Input(outPath).Text(installPath.String())
*fullInstallPaths = append(*fullInstallPaths, FullInstallPathInfo{
SourcePath: outPath,
FullInstallPath: android.PathForModuleInPartitionInstall(ctx, f.PartitionType(), "etc/aconfig", fileName),
})
f.appendToEntry(ctx, installPath)
}
if ctx.Config().ReleaseCreateAconfigStorageFile() {
generatePartitionAconfigStorageFile("package_map", "package.map")
generatePartitionAconfigStorageFile("flag_map", "flag.map")
generatePartitionAconfigStorageFile("flag_val", "flag.val")
generatePartitionAconfigStorageFile("flag_info", "flag.info")
}
}
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