708 lines
23 KiB
Go
708 lines
23 KiB
Go
// Copyright 2015 Google Inc. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package android
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import (
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"fmt"
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"reflect"
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"runtime"
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"strings"
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"github.com/google/blueprint/proptools"
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)
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func init() {
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registerVariableBuildComponents(InitRegistrationContext)
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}
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func registerVariableBuildComponents(ctx RegistrationContext) {
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ctx.PreDepsMutators(func(ctx RegisterMutatorsContext) {
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ctx.BottomUp("variable", VariableMutator).Parallel()
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})
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}
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var PrepareForTestWithVariables = FixtureRegisterWithContext(registerVariableBuildComponents)
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type variableProperties struct {
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Product_variables struct {
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Platform_sdk_version struct {
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Asflags []string
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Cflags []string
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}
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// unbundled_build is a catch-all property to annotate modules that don't build in one or
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// more unbundled branches, usually due to dependencies missing from the manifest.
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Unbundled_build struct {
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Enabled *bool `android:"arch_variant"`
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} `android:"arch_variant"`
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Malloc_not_svelte struct {
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Cflags []string `android:"arch_variant"`
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Shared_libs []string `android:"arch_variant"`
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Whole_static_libs []string `android:"arch_variant"`
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Exclude_static_libs []string `android:"arch_variant"`
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} `android:"arch_variant"`
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Malloc_zero_contents struct {
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Cflags []string `android:"arch_variant"`
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} `android:"arch_variant"`
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Malloc_pattern_fill_contents struct {
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Cflags []string `android:"arch_variant"`
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} `android:"arch_variant"`
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Safestack struct {
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Cflags []string `android:"arch_variant"`
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} `android:"arch_variant"`
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Binder32bit struct {
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Cflags []string
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}
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Override_rs_driver struct {
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Cflags []string
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}
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// treble_linker_namespaces is true when the system/vendor linker namespace separation is
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// enabled.
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Treble_linker_namespaces struct {
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Cflags []string
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}
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// enforce_vintf_manifest is true when a device is required to have a vintf manifest.
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Enforce_vintf_manifest struct {
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Cflags []string
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}
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// debuggable is true for eng and userdebug builds, and can be used to turn on additional
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// debugging features that don't significantly impact runtime behavior. userdebug builds
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// are used for dogfooding and performance testing, and should be as similar to user builds
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// as possible.
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Debuggable struct {
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Cflags []string
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Cppflags []string
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Init_rc []string
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Required []string
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Host_required []string
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Target_required []string
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Strip struct {
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All *bool
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Keep_symbols *bool
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Keep_symbols_and_debug_frame *bool
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}
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}
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// eng is true for -eng builds, and can be used to turn on additionaly heavyweight debugging
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// features.
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Eng struct {
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Cflags []string
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Cppflags []string
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Lto struct {
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Never *bool
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}
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Sanitize struct {
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Address *bool
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}
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Optimize struct {
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Enabled *bool
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}
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}
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Pdk struct {
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Enabled *bool `android:"arch_variant"`
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} `android:"arch_variant"`
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Uml struct {
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Cppflags []string
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}
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Arc struct {
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Cflags []string `android:"arch_variant"`
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Exclude_srcs []string `android:"arch_variant"`
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Include_dirs []string `android:"arch_variant"`
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Shared_libs []string `android:"arch_variant"`
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Static_libs []string `android:"arch_variant"`
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Srcs []string `android:"arch_variant"`
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Whole_static_libs []string `android:"arch_variant"`
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} `android:"arch_variant"`
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Flatten_apex struct {
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Enabled *bool
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}
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Native_coverage struct {
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Src *string `android:"arch_variant"`
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Srcs []string `android:"arch_variant"`
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Exclude_srcs []string `android:"arch_variant"`
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} `android:"arch_variant"`
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} `android:"arch_variant"`
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}
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var defaultProductVariables interface{} = variableProperties{}
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type productVariables struct {
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// Suffix to add to generated Makefiles
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Make_suffix *string `json:",omitempty"`
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BuildId *string `json:",omitempty"`
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BuildNumberFile *string `json:",omitempty"`
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Platform_version_name *string `json:",omitempty"`
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Platform_sdk_version *int `json:",omitempty"`
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Platform_sdk_codename *string `json:",omitempty"`
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Platform_sdk_final *bool `json:",omitempty"`
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Platform_version_active_codenames []string `json:",omitempty"`
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Platform_vndk_version *string `json:",omitempty"`
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Platform_systemsdk_versions []string `json:",omitempty"`
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Platform_security_patch *string `json:",omitempty"`
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Platform_preview_sdk_version *string `json:",omitempty"`
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Platform_min_supported_target_sdk_version *string `json:",omitempty"`
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Platform_base_os *string `json:",omitempty"`
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DeviceName *string `json:",omitempty"`
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DeviceArch *string `json:",omitempty"`
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DeviceArchVariant *string `json:",omitempty"`
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DeviceCpuVariant *string `json:",omitempty"`
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DeviceAbi []string `json:",omitempty"`
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DeviceVndkVersion *string `json:",omitempty"`
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DeviceCurrentApiLevelForVendorModules *string `json:",omitempty"`
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DeviceSystemSdkVersions []string `json:",omitempty"`
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RecoverySnapshotVersion *string `json:",omitempty"`
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DeviceSecondaryArch *string `json:",omitempty"`
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DeviceSecondaryArchVariant *string `json:",omitempty"`
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DeviceSecondaryCpuVariant *string `json:",omitempty"`
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DeviceSecondaryAbi []string `json:",omitempty"`
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NativeBridgeArch *string `json:",omitempty"`
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NativeBridgeArchVariant *string `json:",omitempty"`
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NativeBridgeCpuVariant *string `json:",omitempty"`
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NativeBridgeAbi []string `json:",omitempty"`
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NativeBridgeRelativePath *string `json:",omitempty"`
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NativeBridgeSecondaryArch *string `json:",omitempty"`
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NativeBridgeSecondaryArchVariant *string `json:",omitempty"`
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NativeBridgeSecondaryCpuVariant *string `json:",omitempty"`
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NativeBridgeSecondaryAbi []string `json:",omitempty"`
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NativeBridgeSecondaryRelativePath *string `json:",omitempty"`
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HostArch *string `json:",omitempty"`
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HostSecondaryArch *string `json:",omitempty"`
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CrossHost *string `json:",omitempty"`
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CrossHostArch *string `json:",omitempty"`
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CrossHostSecondaryArch *string `json:",omitempty"`
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DeviceResourceOverlays []string `json:",omitempty"`
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ProductResourceOverlays []string `json:",omitempty"`
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EnforceRROTargets []string `json:",omitempty"`
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EnforceRROExcludedOverlays []string `json:",omitempty"`
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AAPTCharacteristics *string `json:",omitempty"`
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AAPTConfig []string `json:",omitempty"`
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AAPTPreferredConfig *string `json:",omitempty"`
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AAPTPrebuiltDPI []string `json:",omitempty"`
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DefaultAppCertificate *string `json:",omitempty"`
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AppsDefaultVersionName *string `json:",omitempty"`
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Allow_missing_dependencies *bool `json:",omitempty"`
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Unbundled_build *bool `json:",omitempty"`
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Unbundled_build_apps *bool `json:",omitempty"`
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Always_use_prebuilt_sdks *bool `json:",omitempty"`
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Skip_boot_jars_check *bool `json:",omitempty"`
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Malloc_not_svelte *bool `json:",omitempty"`
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Malloc_zero_contents *bool `json:",omitempty"`
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Malloc_pattern_fill_contents *bool `json:",omitempty"`
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Safestack *bool `json:",omitempty"`
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HostStaticBinaries *bool `json:",omitempty"`
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Binder32bit *bool `json:",omitempty"`
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UseGoma *bool `json:",omitempty"`
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UseRBE *bool `json:",omitempty"`
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UseRBEJAVAC *bool `json:",omitempty"`
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UseRBER8 *bool `json:",omitempty"`
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UseRBED8 *bool `json:",omitempty"`
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Debuggable *bool `json:",omitempty"`
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Eng *bool `json:",omitempty"`
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Treble_linker_namespaces *bool `json:",omitempty"`
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Enforce_vintf_manifest *bool `json:",omitempty"`
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Uml *bool `json:",omitempty"`
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Arc *bool `json:",omitempty"`
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MinimizeJavaDebugInfo *bool `json:",omitempty"`
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Check_elf_files *bool `json:",omitempty"`
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UncompressPrivAppDex *bool `json:",omitempty"`
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ModulesLoadedByPrivilegedModules []string `json:",omitempty"`
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BootJars ConfiguredJarList `json:",omitempty"`
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UpdatableBootJars ConfiguredJarList `json:",omitempty"`
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IntegerOverflowExcludePaths []string `json:",omitempty"`
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EnableCFI *bool `json:",omitempty"`
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CFIExcludePaths []string `json:",omitempty"`
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CFIIncludePaths []string `json:",omitempty"`
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DisableScudo *bool `json:",omitempty"`
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MemtagHeapExcludePaths []string `json:",omitempty"`
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MemtagHeapAsyncIncludePaths []string `json:",omitempty"`
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MemtagHeapSyncIncludePaths []string `json:",omitempty"`
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VendorPath *string `json:",omitempty"`
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OdmPath *string `json:",omitempty"`
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ProductPath *string `json:",omitempty"`
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SystemExtPath *string `json:",omitempty"`
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ClangTidy *bool `json:",omitempty"`
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TidyChecks *string `json:",omitempty"`
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SamplingPGO *bool `json:",omitempty"`
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JavaCoveragePaths []string `json:",omitempty"`
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JavaCoverageExcludePaths []string `json:",omitempty"`
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GcovCoverage *bool `json:",omitempty"`
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ClangCoverage *bool `json:",omitempty"`
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NativeCoveragePaths []string `json:",omitempty"`
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NativeCoverageExcludePaths []string `json:",omitempty"`
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// Set by NewConfig
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Native_coverage *bool
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SanitizeHost []string `json:",omitempty"`
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SanitizeDevice []string `json:",omitempty"`
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SanitizeDeviceDiag []string `json:",omitempty"`
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SanitizeDeviceArch []string `json:",omitempty"`
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ArtUseReadBarrier *bool `json:",omitempty"`
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BtConfigIncludeDir *string `json:",omitempty"`
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Override_rs_driver *string `json:",omitempty"`
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Fuchsia *bool `json:",omitempty"`
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DeviceKernelHeaders []string `json:",omitempty"`
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ExtraVndkVersions []string `json:",omitempty"`
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NamespacesToExport []string `json:",omitempty"`
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PgoAdditionalProfileDirs []string `json:",omitempty"`
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VndkUseCoreVariant *bool `json:",omitempty"`
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VndkSnapshotBuildArtifacts *bool `json:",omitempty"`
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DirectedVendorSnapshot bool `json:",omitempty"`
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VendorSnapshotModules map[string]bool `json:",omitempty"`
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DirectedRecoverySnapshot bool `json:",omitempty"`
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RecoverySnapshotModules map[string]bool `json:",omitempty"`
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VendorSnapshotDirsIncluded []string `json:",omitempty"`
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VendorSnapshotDirsExcluded []string `json:",omitempty"`
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RecoverySnapshotDirsExcluded []string `json:",omitempty"`
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RecoverySnapshotDirsIncluded []string `json:",omitempty"`
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BoardVendorSepolicyDirs []string `json:",omitempty"`
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BoardOdmSepolicyDirs []string `json:",omitempty"`
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BoardReqdMaskPolicy []string `json:",omitempty"`
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SystemExtPublicSepolicyDirs []string `json:",omitempty"`
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SystemExtPrivateSepolicyDirs []string `json:",omitempty"`
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BoardSepolicyM4Defs []string `json:",omitempty"`
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BoardSepolicyVers *string `json:",omitempty"`
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PlatformSepolicyVersion *string `json:",omitempty"`
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VendorVars map[string]map[string]string `json:",omitempty"`
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Ndk_abis *bool `json:",omitempty"`
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Exclude_draft_ndk_apis *bool `json:",omitempty"`
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Flatten_apex *bool `json:",omitempty"`
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ForceApexSymlinkOptimization *bool `json:",omitempty"`
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CompressedApex *bool `json:",omitempty"`
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Aml_abis *bool `json:",omitempty"`
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DexpreoptGlobalConfig *string `json:",omitempty"`
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ManifestPackageNameOverrides []string `json:",omitempty"`
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CertificateOverrides []string `json:",omitempty"`
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PackageNameOverrides []string `json:",omitempty"`
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EnforceSystemCertificate *bool `json:",omitempty"`
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EnforceSystemCertificateAllowList []string `json:",omitempty"`
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ProductHiddenAPIStubs []string `json:",omitempty"`
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ProductHiddenAPIStubsSystem []string `json:",omitempty"`
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ProductHiddenAPIStubsTest []string `json:",omitempty"`
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ProductPublicSepolicyDirs []string `json:",omitempty"`
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ProductPrivateSepolicyDirs []string `json:",omitempty"`
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ProductVndkVersion *string `json:",omitempty"`
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TargetFSConfigGen []string `json:",omitempty"`
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MissingUsesLibraries []string `json:",omitempty"`
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EnforceProductPartitionInterface *bool `json:",omitempty"`
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EnforceInterPartitionJavaSdkLibrary *bool `json:",omitempty"`
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InterPartitionJavaLibraryAllowList []string `json:",omitempty"`
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InstallExtraFlattenedApexes *bool `json:",omitempty"`
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BoardUsesRecoveryAsBoot *bool `json:",omitempty"`
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BoardKernelBinaries []string `json:",omitempty"`
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BoardKernelModuleInterfaceVersions []string `json:",omitempty"`
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BoardMoveRecoveryResourcesToVendorBoot *bool `json:",omitempty"`
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PrebuiltHiddenApiDir *string `json:",omitempty"`
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ShippingApiLevel *string `json:",omitempty"`
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BuildBrokenEnforceSyspropOwner bool `json:",omitempty"`
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BuildBrokenTrebleSyspropNeverallow bool `json:",omitempty"`
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BuildBrokenVendorPropertyNamespace bool `json:",omitempty"`
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RequiresInsecureExecmemForSwiftshader bool `json:",omitempty"`
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SelinuxIgnoreNeverallows bool `json:",omitempty"`
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SepolicySplit bool `json:",omitempty"`
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}
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func boolPtr(v bool) *bool {
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return &v
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}
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func intPtr(v int) *int {
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return &v
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}
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func stringPtr(v string) *string {
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return &v
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}
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func (v *productVariables) SetDefaultConfig() {
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*v = productVariables{
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BuildNumberFile: stringPtr("build_number.txt"),
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Platform_version_name: stringPtr("S"),
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Platform_sdk_version: intPtr(30),
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Platform_sdk_codename: stringPtr("S"),
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Platform_sdk_final: boolPtr(false),
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Platform_version_active_codenames: []string{"S"},
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Platform_vndk_version: stringPtr("S"),
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HostArch: stringPtr("x86_64"),
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HostSecondaryArch: stringPtr("x86"),
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DeviceName: stringPtr("generic_arm64"),
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DeviceArch: stringPtr("arm64"),
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DeviceArchVariant: stringPtr("armv8-a"),
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DeviceCpuVariant: stringPtr("generic"),
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DeviceAbi: []string{"arm64-v8a"},
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DeviceSecondaryArch: stringPtr("arm"),
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DeviceSecondaryArchVariant: stringPtr("armv8-a"),
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DeviceSecondaryCpuVariant: stringPtr("generic"),
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DeviceSecondaryAbi: []string{"armeabi-v7a", "armeabi"},
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AAPTConfig: []string{"normal", "large", "xlarge", "hdpi", "xhdpi", "xxhdpi"},
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AAPTPreferredConfig: stringPtr("xhdpi"),
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AAPTCharacteristics: stringPtr("nosdcard"),
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AAPTPrebuiltDPI: []string{"xhdpi", "xxhdpi"},
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Malloc_not_svelte: boolPtr(true),
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Malloc_zero_contents: boolPtr(true),
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Malloc_pattern_fill_contents: boolPtr(false),
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Safestack: boolPtr(false),
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BootJars: ConfiguredJarList{apexes: []string{}, jars: []string{}},
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UpdatableBootJars: ConfiguredJarList{apexes: []string{}, jars: []string{}},
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}
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if runtime.GOOS == "linux" {
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v.CrossHost = stringPtr("windows")
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v.CrossHostArch = stringPtr("x86")
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v.CrossHostSecondaryArch = stringPtr("x86_64")
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}
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}
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func VariableMutator(mctx BottomUpMutatorContext) {
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var module Module
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var ok bool
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if module, ok = mctx.Module().(Module); !ok {
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return
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}
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// TODO: depend on config variable, create variants, propagate variants up tree
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a := module.base()
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if a.variableProperties == nil {
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return
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}
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variableValues := reflect.ValueOf(a.variableProperties).Elem().FieldByName("Product_variables")
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productVariables := reflect.ValueOf(mctx.Config().productVariables)
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for i := 0; i < variableValues.NumField(); i++ {
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variableValue := variableValues.Field(i)
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name := variableValues.Type().Field(i).Name
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property := "product_variables." + proptools.PropertyNameForField(name)
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// Check that the variable was set for the product
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val := productVariables.FieldByName(name)
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if !val.IsValid() || val.Kind() != reflect.Ptr || val.IsNil() {
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continue
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}
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val = val.Elem()
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// For bools, check that the value is true
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if val.Kind() == reflect.Bool && val.Bool() == false {
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continue
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}
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// Check if any properties were set for the module
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if variableValue.IsZero() {
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continue
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}
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a.setVariableProperties(mctx, property, variableValue, val.Interface())
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}
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}
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func (m *ModuleBase) setVariableProperties(ctx BottomUpMutatorContext,
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prefix string, productVariablePropertyValue reflect.Value, variableValue interface{}) {
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printfIntoProperties(ctx, prefix, productVariablePropertyValue, variableValue)
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err := proptools.AppendMatchingProperties(m.generalProperties,
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productVariablePropertyValue.Addr().Interface(), nil)
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if err != nil {
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if propertyErr, ok := err.(*proptools.ExtendPropertyError); ok {
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ctx.PropertyErrorf(propertyErr.Property, "%s", propertyErr.Err.Error())
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} else {
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panic(err)
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}
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}
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}
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func printfIntoPropertiesError(ctx BottomUpMutatorContext, prefix string,
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productVariablePropertyValue reflect.Value, i int, err error) {
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field := productVariablePropertyValue.Type().Field(i).Name
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property := prefix + "." + proptools.PropertyNameForField(field)
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ctx.PropertyErrorf(property, "%s", err)
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}
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func printfIntoProperties(ctx BottomUpMutatorContext, prefix string,
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productVariablePropertyValue reflect.Value, variableValue interface{}) {
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for i := 0; i < productVariablePropertyValue.NumField(); i++ {
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propertyValue := productVariablePropertyValue.Field(i)
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kind := propertyValue.Kind()
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if kind == reflect.Ptr {
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if propertyValue.IsNil() {
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continue
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}
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propertyValue = propertyValue.Elem()
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}
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switch propertyValue.Kind() {
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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
|
|
}
|
|
}
|