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platform_build_soong/android/variable.go
Christopher Ferris a5a6b9c766 Replace Malloc_not_svelte with Malloc_low_memory. 
The Malloc_not_svelte variable name is confusing and makes the
low memory config the default. Change this so that the default is
the regular allocator, and that Malloc_low_memory is used to enable
the low memory allocator.

Test: Verified scudo config is used by default.
Test: Verfified Android GO config uses the jemalloc low memory config.
Change-Id: I02ee2bd304c8367152108caee08dd27d91838659
2024-04-24 17:42:23 -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 *bool `android:"arch_variant"`
} `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 *bool `android:"arch_variant"`
} `android:"arch_variant"`
Malloc_low_memory 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_low_memory *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_low_memory: boolPtr(false),
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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