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021bf3d9733d1c985402dfb6fa82c47a37459322
build_soong/android/variable.go
Cole Faust 021bf3d973 Reapply "Make the enabled property configurable" 
Previously, I had changed some loadhook-appended property structs
to use selects instead of the "target" property struct. This seems
to not be exactly equivalent because "target" properties are merged
with the regular properties later, at the time the arch mutator runs.

With this reapplication, leave those target property structs alone
to avoid breakages, but I'll have to look into what the issue is
with them later.

This reverts commit ed5276f082.

Ignore-AOSP-First: This cl needs to be in a topic with internal-only projects, will cherrypick to aosp after.
Bug: 323382414
Test: m nothing --no-skip-soong-tests
Change-Id: If355d24506e3f117d27b21442a6c02bca3402dc7
2024-05-02 10:56:36 -07:00

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// Copyright 2015 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 android
import (
"fmt"
"reflect"
"runtime"
"strings"
"github.com/google/blueprint/proptools"
)
func init() {
registerVariableBuildComponents(InitRegistrationContext)
}
func registerVariableBuildComponents(ctx RegistrationContext) {
ctx.PreDepsMutators(func(ctx RegisterMutatorsContext) {
ctx.BottomUp("variable", VariableMutator).Parallel()
})
}
var PrepareForTestWithVariables = FixtureRegisterWithContext(registerVariableBuildComponents)
type variableProperties struct {
Product_variables struct {
Platform_sdk_version struct {
Asflags []string
Cflags []string
Cmd *string
}
Platform_sdk_version_or_codename struct {
Java_resource_dirs []string
}
Platform_sdk_extension_version struct {
Cmd *string
}
Platform_version_name struct {
Base_dir *string
}
// unbundled_build is a catch-all property to annotate modules that don't build in one or
// more unbundled branches, usually due to dependencies missing from the manifest.
Unbundled_build struct {
Enabled proptools.Configurable[bool] `android:"arch_variant,replace_instead_of_append"`
} `android:"arch_variant"`
// similar to `Unbundled_build`, but `Always_use_prebuilt_sdks` means that it uses prebuilt
// sdk specifically.
Always_use_prebuilt_sdks struct {
Enabled proptools.Configurable[bool] `android:"arch_variant,replace_instead_of_append"`
} `android:"arch_variant"`
Malloc_not_svelte struct {
Cflags []string `android:"arch_variant"`
Shared_libs []string `android:"arch_variant"`
Whole_static_libs []string `android:"arch_variant"`
Static_libs []string `android:"arch_variant"`
Exclude_static_libs []string `android:"arch_variant"`
Srcs []string `android:"arch_variant"`
Header_libs []string `android:"arch_variant"`
} `android:"arch_variant"`
Malloc_zero_contents struct {
Cflags []string `android:"arch_variant"`
} `android:"arch_variant"`
Malloc_pattern_fill_contents struct {
Cflags []string `android:"arch_variant"`
} `android:"arch_variant"`
Safestack struct {
Cflags []string `android:"arch_variant"`
} `android:"arch_variant"`
Binder32bit struct {
Cflags []string
}
Override_rs_driver struct {
Cflags []string
}
// treble_linker_namespaces is true when the system/vendor linker namespace separation is
// enabled.
Treble_linker_namespaces struct {
Cflags []string
}
// enforce_vintf_manifest is true when a device is required to have a vintf manifest.
Enforce_vintf_manifest struct {
Cflags []string
}
Build_from_text_stub struct {
Static_libs []string
Exclude_static_libs []string
}
// debuggable is true for eng and userdebug builds, and can be used to turn on additional
// debugging features that don't significantly impact runtime behavior. userdebug builds
// are used for dogfooding and performance testing, and should be as similar to user builds
// as possible.
Debuggable struct {
Cflags []string
Cppflags []string
Init_rc []string
Required []string
Host_required []string
Target_required []string
Strip struct {
All *bool
Keep_symbols *bool
Keep_symbols_and_debug_frame *bool
}
Static_libs []string
Whole_static_libs []string
Shared_libs []string
Cmdline []string
Srcs []string
Exclude_srcs []string
Cmd *string
Deps []string
}
// eng is true for -eng builds, and can be used to turn on additional heavyweight debugging
// features.
Eng struct {
Cflags []string
Cppflags []string
Lto struct {
Never *bool
}
Sanitize struct {
Address *bool
}
Optimize struct {
Enabled *bool
}
}
Uml struct {
Cppflags []string
}
Arc struct {
Cflags []string `android:"arch_variant"`
Exclude_srcs []string `android:"arch_variant"`
Header_libs []string `android:"arch_variant"`
Include_dirs []string `android:"arch_variant"`
Shared_libs []string `android:"arch_variant"`
Static_libs []string `android:"arch_variant"`
Srcs []string `android:"arch_variant"`
Whole_static_libs []string `android:"arch_variant"`
} `android:"arch_variant"`
Native_coverage struct {
Src *string `android:"arch_variant"`
Srcs []string `android:"arch_variant"`
Exclude_srcs []string `android:"arch_variant"`
} `android:"arch_variant"`
// release_aidl_use_unfrozen is "true" when a device can
// use the unfrozen versions of AIDL interfaces.
Release_aidl_use_unfrozen struct {
Cflags []string
Cmd *string
}
} `android:"arch_variant"`
}
var defaultProductVariables interface{} = variableProperties{}
type ProductVariables struct {
// Suffix to add to generated Makefiles
Make_suffix *string `json:",omitempty"`
BuildId *string `json:",omitempty"`
BuildNumberFile *string `json:",omitempty"`
BuildHostnameFile *string `json:",omitempty"`
BuildThumbprintFile *string `json:",omitempty"`
DisplayBuildNumber *bool `json:",omitempty"`
Platform_display_version_name *string `json:",omitempty"`
Platform_version_name *string `json:",omitempty"`
Platform_sdk_version *int `json:",omitempty"`
Platform_sdk_codename *string `json:",omitempty"`
Platform_sdk_version_or_codename *string `json:",omitempty"`
Platform_sdk_final *bool `json:",omitempty"`
Platform_sdk_extension_version *int `json:",omitempty"`
Platform_base_sdk_extension_version *int `json:",omitempty"`
Platform_version_active_codenames []string `json:",omitempty"`
Platform_version_all_preview_codenames []string `json:",omitempty"`
Platform_systemsdk_versions []string `json:",omitempty"`
Platform_security_patch *string `json:",omitempty"`
Platform_preview_sdk_version *string `json:",omitempty"`
Platform_base_os *string `json:",omitempty"`
Platform_version_last_stable *string `json:",omitempty"`
Platform_version_known_codenames *string `json:",omitempty"`
DeviceName *string `json:",omitempty"`
DeviceProduct *string `json:",omitempty"`
DeviceArch *string `json:",omitempty"`
DeviceArchVariant *string `json:",omitempty"`
DeviceCpuVariant *string `json:",omitempty"`
DeviceAbi []string `json:",omitempty"`
DeviceVndkVersion *string `json:",omitempty"`
DeviceCurrentApiLevelForVendorModules *string `json:",omitempty"`
DeviceSystemSdkVersions []string `json:",omitempty"`
DeviceMaxPageSizeSupported *string `json:",omitempty"`
DeviceNoBionicPageSizeMacro *bool `json:",omitempty"`
VendorApiLevel *string `json:",omitempty"`
RecoverySnapshotVersion *string `json:",omitempty"`
DeviceSecondaryArch *string `json:",omitempty"`
DeviceSecondaryArchVariant *string `json:",omitempty"`
DeviceSecondaryCpuVariant *string `json:",omitempty"`
DeviceSecondaryAbi []string `json:",omitempty"`
NativeBridgeArch *string `json:",omitempty"`
NativeBridgeArchVariant *string `json:",omitempty"`
NativeBridgeCpuVariant *string `json:",omitempty"`
NativeBridgeAbi []string `json:",omitempty"`
NativeBridgeRelativePath *string `json:",omitempty"`
NativeBridgeSecondaryArch *string `json:",omitempty"`
NativeBridgeSecondaryArchVariant *string `json:",omitempty"`
NativeBridgeSecondaryCpuVariant *string `json:",omitempty"`
NativeBridgeSecondaryAbi []string `json:",omitempty"`
NativeBridgeSecondaryRelativePath *string `json:",omitempty"`
HostArch *string `json:",omitempty"`
HostSecondaryArch *string `json:",omitempty"`
HostMusl *bool `json:",omitempty"`
CrossHost *string `json:",omitempty"`
CrossHostArch *string `json:",omitempty"`
CrossHostSecondaryArch *string `json:",omitempty"`
DeviceResourceOverlays []string `json:",omitempty"`
ProductResourceOverlays []string `json:",omitempty"`
EnforceRROTargets []string `json:",omitempty"`
EnforceRROExcludedOverlays []string `json:",omitempty"`
AAPTCharacteristics *string `json:",omitempty"`
AAPTConfig []string `json:",omitempty"`
AAPTPreferredConfig *string `json:",omitempty"`
AAPTPrebuiltDPI []string `json:",omitempty"`
DefaultAppCertificate *string `json:",omitempty"`
MainlineSepolicyDevCertificates *string `json:",omitempty"`
AppsDefaultVersionName *string `json:",omitempty"`
Allow_missing_dependencies *bool `json:",omitempty"`
Unbundled_build *bool `json:",omitempty"`
Unbundled_build_apps []string `json:",omitempty"`
Unbundled_build_image *bool `json:",omitempty"`
Always_use_prebuilt_sdks *bool `json:",omitempty"`
Skip_boot_jars_check *bool `json:",omitempty"`
Malloc_not_svelte *bool `json:",omitempty"`
Malloc_zero_contents *bool `json:",omitempty"`
Malloc_pattern_fill_contents *bool `json:",omitempty"`
Safestack *bool `json:",omitempty"`
HostStaticBinaries *bool `json:",omitempty"`
Binder32bit *bool `json:",omitempty"`
UseGoma *bool `json:",omitempty"`
UseRBE *bool `json:",omitempty"`
UseRBEJAVAC *bool `json:",omitempty"`
UseRBER8 *bool `json:",omitempty"`
UseRBED8 *bool `json:",omitempty"`
Debuggable *bool `json:",omitempty"`
Eng *bool `json:",omitempty"`
Treble_linker_namespaces *bool `json:",omitempty"`
Enforce_vintf_manifest *bool `json:",omitempty"`
Uml *bool `json:",omitempty"`
Arc *bool `json:",omitempty"`
MinimizeJavaDebugInfo *bool `json:",omitempty"`
Build_from_text_stub *bool `json:",omitempty"`
BuildType *string `json:",omitempty"`
Check_elf_files *bool `json:",omitempty"`
UncompressPrivAppDex *bool `json:",omitempty"`
ModulesLoadedByPrivilegedModules []string `json:",omitempty"`
BootJars ConfiguredJarList `json:",omitempty"`
ApexBootJars ConfiguredJarList `json:",omitempty"`
IntegerOverflowExcludePaths []string `json:",omitempty"`
EnableCFI *bool `json:",omitempty"`
CFIExcludePaths []string `json:",omitempty"`
CFIIncludePaths []string `json:",omitempty"`
DisableScudo *bool `json:",omitempty"`
MemtagHeapExcludePaths []string `json:",omitempty"`
MemtagHeapAsyncIncludePaths []string `json:",omitempty"`
MemtagHeapSyncIncludePaths []string `json:",omitempty"`
HWASanIncludePaths []string `json:",omitempty"`
HWASanExcludePaths []string `json:",omitempty"`
VendorPath *string `json:",omitempty"`
OdmPath *string `json:",omitempty"`
ProductPath *string `json:",omitempty"`
SystemExtPath *string `json:",omitempty"`
ClangTidy *bool `json:",omitempty"`
TidyChecks *string `json:",omitempty"`
JavaCoveragePaths []string `json:",omitempty"`
JavaCoverageExcludePaths []string `json:",omitempty"`
GcovCoverage *bool `json:",omitempty"`
ClangCoverage *bool `json:",omitempty"`
NativeCoveragePaths []string `json:",omitempty"`
NativeCoverageExcludePaths []string `json:",omitempty"`
ClangCoverageContinuousMode *bool `json:",omitempty"`
// Set by NewConfig
Native_coverage *bool `json:",omitempty"`
SanitizeHost []string `json:",omitempty"`
SanitizeDevice []string `json:",omitempty"`
SanitizeDeviceDiag []string `json:",omitempty"`
SanitizeDeviceArch []string `json:",omitempty"`
ArtUseReadBarrier *bool `json:",omitempty"`
BtConfigIncludeDir *string `json:",omitempty"`
Override_rs_driver *string `json:",omitempty"`
DeviceKernelHeaders []string `json:",omitempty"`
ExtraVndkVersions []string `json:",omitempty"`
NamespacesToExport []string `json:",omitempty"`
PgoAdditionalProfileDirs []string `json:",omitempty"`
VndkUseCoreVariant *bool `json:",omitempty"`
VndkSnapshotBuildArtifacts *bool `json:",omitempty"`
DirectedVendorSnapshot bool `json:",omitempty"`
VendorSnapshotModules map[string]bool `json:",omitempty"`
DirectedRecoverySnapshot bool `json:",omitempty"`
RecoverySnapshotModules map[string]bool `json:",omitempty"`
VendorSnapshotDirsIncluded []string `json:",omitempty"`
VendorSnapshotDirsExcluded []string `json:",omitempty"`
RecoverySnapshotDirsExcluded []string `json:",omitempty"`
RecoverySnapshotDirsIncluded []string `json:",omitempty"`
HostFakeSnapshotEnabled bool `json:",omitempty"`
MultitreeUpdateMeta bool `json:",omitempty"`
BoardVendorSepolicyDirs []string `json:",omitempty"`
BoardOdmSepolicyDirs []string `json:",omitempty"`
SystemExtPublicSepolicyDirs []string `json:",omitempty"`
SystemExtPrivateSepolicyDirs []string `json:",omitempty"`
BoardSepolicyM4Defs []string `json:",omitempty"`
BoardSepolicyVers *string `json:",omitempty"`
PlatformSepolicyVersion *string `json:",omitempty"`
SystemExtSepolicyPrebuiltApiDir *string `json:",omitempty"`
ProductSepolicyPrebuiltApiDir *string `json:",omitempty"`
PlatformSepolicyCompatVersions []string `json:",omitempty"`
VendorVars map[string]map[string]string `json:",omitempty"`
Ndk_abis *bool `json:",omitempty"`
TrimmedApex *bool `json:",omitempty"`
ForceApexSymlinkOptimization *bool `json:",omitempty"`
CompressedApex *bool `json:",omitempty"`
Aml_abis *bool `json:",omitempty"`
DexpreoptGlobalConfig *string `json:",omitempty"`
WithDexpreopt bool `json:",omitempty"`
ManifestPackageNameOverrides []string `json:",omitempty"`
CertificateOverrides []string `json:",omitempty"`
PackageNameOverrides []string `json:",omitempty"`
ConfiguredJarLocationOverrides []string `json:",omitempty"`
ApexGlobalMinSdkVersionOverride *string `json:",omitempty"`
EnforceSystemCertificate *bool `json:",omitempty"`
EnforceSystemCertificateAllowList []string `json:",omitempty"`
ProductHiddenAPIStubs []string `json:",omitempty"`
ProductHiddenAPIStubsSystem []string `json:",omitempty"`
ProductHiddenAPIStubsTest []string `json:",omitempty"`
ProductPublicSepolicyDirs []string `json:",omitempty"`
ProductPrivateSepolicyDirs []string `json:",omitempty"`
TargetFSConfigGen []string `json:",omitempty"`
EnforceProductPartitionInterface *bool `json:",omitempty"`
EnforceInterPartitionJavaSdkLibrary *bool `json:",omitempty"`
InterPartitionJavaLibraryAllowList []string `json:",omitempty"`
BoardUsesRecoveryAsBoot *bool `json:",omitempty"`
BoardKernelBinaries []string `json:",omitempty"`
BoardKernelModuleInterfaceVersions []string `json:",omitempty"`
BoardMoveRecoveryResourcesToVendorBoot *bool `json:",omitempty"`
PrebuiltHiddenApiDir *string `json:",omitempty"`
ShippingApiLevel *string `json:",omitempty"`
BuildBrokenPluginValidation []string `json:",omitempty"`
BuildBrokenClangAsFlags bool `json:",omitempty"`
BuildBrokenClangCFlags bool `json:",omitempty"`
BuildBrokenClangProperty bool `json:",omitempty"`
GenruleSandboxing *bool `json:",omitempty"`
BuildBrokenEnforceSyspropOwner bool `json:",omitempty"`
BuildBrokenTrebleSyspropNeverallow bool `json:",omitempty"`
BuildBrokenUsesSoongPython2Modules bool `json:",omitempty"`
BuildBrokenVendorPropertyNamespace bool `json:",omitempty"`
BuildBrokenIncorrectPartitionImages bool `json:",omitempty"`
BuildBrokenInputDirModules []string `json:",omitempty"`
BuildBrokenDontCheckSystemSdk bool `json:",omitempty"`
BuildWarningBadOptionalUsesLibsAllowlist []string `json:",omitempty"`
BuildDebugfsRestrictionsEnabled bool `json:",omitempty"`
RequiresInsecureExecmemForSwiftshader bool `json:",omitempty"`
SelinuxIgnoreNeverallows bool `json:",omitempty"`
Release_aidl_use_unfrozen *bool `json:",omitempty"`
SepolicyFreezeTestExtraDirs []string `json:",omitempty"`
SepolicyFreezeTestExtraPrebuiltDirs []string `json:",omitempty"`
GenerateAidlNdkPlatformBackend bool `json:",omitempty"`
IgnorePrefer32OnDevice bool `json:",omitempty"`
IncludeTags []string `json:",omitempty"`
SourceRootDirs []string `json:",omitempty"`
AfdoProfiles []string `json:",omitempty"`
ProductManufacturer string `json:",omitempty"`
ProductBrand string `json:",omitempty"`
ReleaseVersion string `json:",omitempty"`
ReleaseAconfigValueSets []string `json:",omitempty"`
ReleaseAconfigFlagDefaultPermission string `json:",omitempty"`
ReleaseDefaultModuleBuildFromSource *bool `json:",omitempty"`
KeepVndk *bool `json:",omitempty"`
CheckVendorSeappViolations *bool `json:",omitempty"`
BuildFlags map[string]string `json:",omitempty"`
BuildFromSourceStub *bool `json:",omitempty"`
BuildIgnoreApexContributionContents *bool `json:",omitempty"`
HiddenapiExportableStubs *bool `json:",omitempty"`
ExportRuntimeApis *bool `json:",omitempty"`
AconfigContainerValidation string `json:",omitempty"`
ProductLocales []string `json:",omitempty"`
ProductDefaultWifiChannels []string `json:",omitempty"`
BoardUseVbmetaDigestInFingerprint *bool `json:",omitempty"`
OemProperties []string `json:",omitempty"`
}
type PartitionQualifiedVariablesType struct {
BuildingImage bool `json:",omitempty"`
BoardErofsCompressor string `json:",omitempty"`
BoardErofsCompressHints string `json:",omitempty"`
BoardErofsPclusterSize string `json:",omitempty"`
BoardExtfsInodeCount string `json:",omitempty"`
BoardExtfsRsvPct string `json:",omitempty"`
BoardF2fsSloadCompressFlags string `json:",omitempty"`
BoardFileSystemCompress string `json:",omitempty"`
BoardFileSystemType string `json:",omitempty"`
BoardJournalSize string `json:",omitempty"`
BoardPartitionReservedSize string `json:",omitempty"`
BoardPartitionSize string `json:",omitempty"`
BoardSquashfsBlockSize string `json:",omitempty"`
BoardSquashfsCompressor string `json:",omitempty"`
BoardSquashfsCompressorOpt string `json:",omitempty"`
BoardSquashfsDisable4kAlign string `json:",omitempty"`
ProductBaseFsPath string `json:",omitempty"`
ProductHeadroom string `json:",omitempty"`
ProductVerityPartition string `json:",omitempty"`
BoardAvbAddHashtreeFooterArgs string `json:",omitempty"`
BoardAvbKeyPath string `json:",omitempty"`
BoardAvbAlgorithm string `json:",omitempty"`
BoardAvbRollbackIndex string `json:",omitempty"`
BoardAvbRollbackIndexLocation string `json:",omitempty"`
}
type PartitionVariables struct {
ProductDirectory string `json:",omitempty"`
PartitionQualifiedVariables map[string]PartitionQualifiedVariablesType
TargetUserimagesUseExt2 bool `json:",omitempty"`
TargetUserimagesUseExt3 bool `json:",omitempty"`
TargetUserimagesUseExt4 bool `json:",omitempty"`
TargetUserimagesSparseExtDisabled bool `json:",omitempty"`
TargetUserimagesSparseErofsDisabled bool `json:",omitempty"`
TargetUserimagesSparseSquashfsDisabled bool `json:",omitempty"`
TargetUserimagesSparseF2fsDisabled bool `json:",omitempty"`
BoardErofsCompressor string `json:",omitempty"`
BoardErofsCompressorHints string `json:",omitempty"`
BoardErofsPclusterSize string `json:",omitempty"`
BoardErofsShareDupBlocks string `json:",omitempty"`
BoardErofsUseLegacyCompression string `json:",omitempty"`
BoardExt4ShareDupBlocks string `json:",omitempty"`
BoardFlashLogicalBlockSize string `json:",omitempty"`
BoardFlashEraseBlockSize string `json:",omitempty"`
BoardUsesRecoveryAsBoot bool `json:",omitempty"`
ProductUseDynamicPartitionSize bool `json:",omitempty"`
CopyImagesForTargetFilesZip bool `json:",omitempty"`
BoardAvbEnable bool `json:",omitempty"`
ProductPackages []string `json:",omitempty"`
}
func boolPtr(v bool) *bool {
return &v
}
func intPtr(v int) *int {
return &v
}
func stringPtr(v string) *string {
return &v
}
func (v *ProductVariables) SetDefaultConfig() {
*v = ProductVariables{
BuildNumberFile: stringPtr("build_number.txt"),
Platform_version_name: stringPtr("S"),
Platform_base_sdk_extension_version: intPtr(30),
Platform_sdk_version: intPtr(30),
Platform_sdk_codename: stringPtr("S"),
Platform_sdk_final: boolPtr(false),
Platform_version_active_codenames: []string{"S"},
Platform_version_all_preview_codenames: []string{"S"},
HostArch: stringPtr("x86_64"),
HostSecondaryArch: stringPtr("x86"),
DeviceName: stringPtr("generic_arm64"),
DeviceProduct: stringPtr("aosp_arm-eng"),
DeviceArch: stringPtr("arm64"),
DeviceArchVariant: stringPtr("armv8-a"),
DeviceCpuVariant: stringPtr("generic"),
DeviceAbi: []string{"arm64-v8a"},
DeviceSecondaryArch: stringPtr("arm"),
DeviceSecondaryArchVariant: stringPtr("armv8-a"),
DeviceSecondaryCpuVariant: stringPtr("generic"),
DeviceSecondaryAbi: []string{"armeabi-v7a", "armeabi"},
DeviceMaxPageSizeSupported: stringPtr("4096"),
DeviceNoBionicPageSizeMacro: boolPtr(false),
AAPTConfig: []string{"normal", "large", "xlarge", "hdpi", "xhdpi", "xxhdpi"},
AAPTPreferredConfig: stringPtr("xhdpi"),
AAPTCharacteristics: stringPtr("nosdcard"),
AAPTPrebuiltDPI: []string{"xhdpi", "xxhdpi"},
Malloc_not_svelte: boolPtr(true),
Malloc_zero_contents: boolPtr(true),
Malloc_pattern_fill_contents: boolPtr(false),
Safestack: boolPtr(false),
TrimmedApex: boolPtr(false),
Build_from_text_stub: boolPtr(false),
BootJars: ConfiguredJarList{apexes: []string{}, jars: []string{}},
ApexBootJars: ConfiguredJarList{apexes: []string{}, jars: []string{}},
}
if runtime.GOOS == "linux" {
v.CrossHost = stringPtr("windows")
v.CrossHostArch = stringPtr("x86")
v.CrossHostSecondaryArch = stringPtr("x86_64")
}
}
func (this *ProductVariables) GetBuildFlagBool(flag string) bool {
val, ok := this.BuildFlags[flag]
if !ok {
return false
}
return val == "true"
}
func VariableMutator(mctx BottomUpMutatorContext) {
var module Module
var ok bool
if module, ok = mctx.Module().(Module); !ok {
return
}
// TODO: depend on config variable, create variants, propagate variants up tree
a := module.base()
if a.variableProperties == nil {
return
}
variableValues := reflect.ValueOf(a.variableProperties).Elem().FieldByName("Product_variables")
productVariables := reflect.ValueOf(mctx.Config().productVariables)
for i := 0; i < variableValues.NumField(); i++ {
variableValue := variableValues.Field(i)
name := variableValues.Type().Field(i).Name
property := "product_variables." + proptools.PropertyNameForField(name)
// Check that the variable was set for the product
val := productVariables.FieldByName(name)
if !val.IsValid() || val.Kind() != reflect.Ptr || val.IsNil() {
continue
}
val = val.Elem()
// For bools, check that the value is true
if val.Kind() == reflect.Bool && val.Bool() == false {
continue
}
// Check if any properties were set for the module
if variableValue.IsZero() {
continue
}
a.setVariableProperties(mctx, property, variableValue, val.Interface())
}
}
func (m *ModuleBase) setVariableProperties(ctx BottomUpMutatorContext,
prefix string, productVariablePropertyValue reflect.Value, variableValue interface{}) {
printfIntoProperties(ctx, prefix, productVariablePropertyValue, variableValue)
err := proptools.AppendMatchingProperties(m.GetProperties(),
productVariablePropertyValue.Addr().Interface(), nil)
if err != nil {
if propertyErr, ok := err.(*proptools.ExtendPropertyError); ok {
ctx.PropertyErrorf(propertyErr.Property, "%s", propertyErr.Err.Error())
} else {
panic(err)
}
}
}
func printfIntoPropertiesError(ctx BottomUpMutatorContext, prefix string,
productVariablePropertyValue reflect.Value, i int, err error) {
field := productVariablePropertyValue.Type().Field(i).Name
property := prefix + "." + proptools.PropertyNameForField(field)
ctx.PropertyErrorf(property, "%s", err)
}
func printfIntoProperties(ctx BottomUpMutatorContext, prefix string,
productVariablePropertyValue reflect.Value, variableValue interface{}) {
for i := 0; i < productVariablePropertyValue.NumField(); i++ {
propertyValue := productVariablePropertyValue.Field(i)
kind := propertyValue.Kind()
if kind == reflect.Ptr {
if propertyValue.IsNil() {
continue
}
propertyValue = propertyValue.Elem()
}
switch propertyValue.Kind() {
case reflect.String:
err := printfIntoProperty(propertyValue, variableValue)
if err != nil {
printfIntoPropertiesError(ctx, prefix, productVariablePropertyValue, i, err)
}
case reflect.Slice:
for j := 0; j < propertyValue.Len(); j++ {
err := printfIntoProperty(propertyValue.Index(j), variableValue)
if err != nil {
printfIntoPropertiesError(ctx, prefix, productVariablePropertyValue, i, err)
}
}
case reflect.Bool:
// Nothing
case reflect.Struct:
printfIntoProperties(ctx, prefix, propertyValue, variableValue)
default:
panic(fmt.Errorf("unsupported field kind %q", propertyValue.Kind()))
}
}
}
func printfIntoProperty(propertyValue reflect.Value, variableValue interface{}) error {
s := propertyValue.String()
count := strings.Count(s, "%")
if count == 0 {
return nil
}
if count > 1 {
return fmt.Errorf("product variable properties only support a single '%%'")
}
if strings.Contains(s, "%d") {
switch v := variableValue.(type) {
case int:
// Nothing
case bool:
if v {
variableValue = 1
} else {
variableValue = 0
}
default:
return fmt.Errorf("unsupported type %T for %%d", variableValue)
}
} else if strings.Contains(s, "%s") {
switch variableValue.(type) {
case string:
// Nothing
default:
return fmt.Errorf("unsupported type %T for %%s", variableValue)
}
} else {
return fmt.Errorf("unsupported %% in product variable property")
}
propertyValue.Set(reflect.ValueOf(fmt.Sprintf(s, variableValue)))
return nil
}
var variablePropTypeMap OncePer
// sliceToTypeArray takes a slice of property structs and returns a reflection created array containing the
// reflect.Types of each property struct. The result can be used as a key in a map.
func sliceToTypeArray(s []interface{}) interface{} {
// Create an array using reflection whose length is the length of the input slice
ret := reflect.New(reflect.ArrayOf(len(s), reflect.TypeOf(reflect.TypeOf(0)))).Elem()
for i, e := range s {
ret.Index(i).Set(reflect.ValueOf(reflect.TypeOf(e)))
}
return ret.Interface()
}
func initProductVariableModule(m Module) {
base := m.base()
// Allow tests to override the default product variables
if base.variableProperties == nil {
base.variableProperties = defaultProductVariables
}
// Filter the product variables properties to the ones that exist on this module
base.variableProperties = createVariableProperties(m.GetProperties(), base.variableProperties)
if base.variableProperties != nil {
m.AddProperties(base.variableProperties)
}
}
// createVariableProperties takes the list of property structs for a module and returns a property struct that
// contains the product variable properties that exist in the property structs, or nil if there are none. It
// caches the result.
func createVariableProperties(moduleTypeProps []interface{}, productVariables interface{}) interface{} {
// Convert the moduleTypeProps to an array of reflect.Types that can be used as a key in the OncePer.
key := sliceToTypeArray(moduleTypeProps)
// Use the variablePropTypeMap OncePer to cache the result for each set of property struct types.
typ, _ := variablePropTypeMap.Once(NewCustomOnceKey(key), func() interface{} {
// Compute the filtered property struct type.
return createVariablePropertiesType(moduleTypeProps, productVariables)
}).(reflect.Type)
if typ == nil {
return nil
}
// Create a new pointer to a filtered property struct.
return reflect.New(typ).Interface()
}
// createVariablePropertiesType creates a new type that contains only the product variable properties that exist in
// a list of property structs.
func createVariablePropertiesType(moduleTypeProps []interface{}, productVariables interface{}) reflect.Type {
typ, _ := proptools.FilterPropertyStruct(reflect.TypeOf(productVariables),
func(field reflect.StructField, prefix string) (bool, reflect.StructField) {
// Filter function, returns true if the field should be in the resulting struct
if prefix == "" {
// Keep the top level Product_variables field
return true, field
}
_, rest := splitPrefix(prefix)
if rest == "" {
// Keep the 2nd level field (i.e. Product_variables.Eng)
return true, field
}
// Strip off the first 2 levels of the prefix
_, prefix = splitPrefix(rest)
for _, p := range moduleTypeProps {
if fieldExistsByNameRecursive(reflect.TypeOf(p).Elem(), prefix, field.Name) {
// Keep any fields that exist in one of the property structs
return true, field
}
}
return false, field
})
return typ
}
func splitPrefix(prefix string) (first, rest string) {
index := strings.IndexByte(prefix, '.')
if index == -1 {
return prefix, ""
}
return prefix[:index], prefix[index+1:]
}
func fieldExistsByNameRecursive(t reflect.Type, prefix, name string) bool {
if t.Kind() != reflect.Struct {
panic(fmt.Errorf("fieldExistsByNameRecursive can only be called on a reflect.Struct"))
}
if prefix != "" {
split := strings.SplitN(prefix, ".", 2)
firstPrefix := split[0]
rest := ""
if len(split) > 1 {
rest = split[1]
}
f, exists := t.FieldByName(firstPrefix)
if !exists {
return false
}
ft := f.Type
if ft.Kind() == reflect.Ptr {
ft = ft.Elem()
}
if ft.Kind() != reflect.Struct {
panic(fmt.Errorf("field %q in %q is not a struct", firstPrefix, t))
}
return fieldExistsByNameRecursive(ft, rest, name)
} else {
_, exists := t.FieldByName(name)
return exists
}
}
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