platform_build_soong/android/bazel.go

668 lines
33 KiB
Go
Raw Normal View History

// Copyright 2021 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 (
"bufio"
"errors"
"fmt"
"io/ioutil"
"path/filepath"
"strings"
"github.com/google/blueprint"
"github.com/google/blueprint/proptools"
)
type bazelModuleProperties struct {
// The label of the Bazel target replacing this Soong module. When run in conversion mode, this
// will import the handcrafted build target into the autogenerated file. Note: this may result in
// a conflict due to duplicate targets if bp2build_available is also set.
Label *string
// If true, bp2build will generate the converted Bazel target for this module. Note: this may
// cause a conflict due to the duplicate targets if label is also set.
//
// This is a bool pointer to support tristates: true, false, not set.
//
// To opt-in a module, set bazel_module: { bp2build_available: true }
// To opt-out a module, set bazel_module: { bp2build_available: false }
// To defer the default setting for the directory, do not set the value.
Bp2build_available *bool
// CanConvertToBazel is set via InitBazelModule to indicate that a module type can be converted to
// Bazel with Bp2build.
CanConvertToBazel bool `blueprint:"mutated"`
}
// Properties contains common module properties for Bazel migration purposes.
type properties struct {
// In USE_BAZEL_ANALYSIS=1 mode, this represents the Bazel target replacing
// this Soong module.
Bazel_module bazelModuleProperties
}
// namespacedVariableProperties is a map from a string representing a Soong
// config variable namespace, like "android" or "vendor_name" to a slice of
// pointer to a struct containing a single field called Soong_config_variables
// whose value mirrors the structure in the Blueprint file.
type namespacedVariableProperties map[string][]interface{}
// BazelModuleBase contains the property structs with metadata for modules which can be converted to
// Bazel.
type BazelModuleBase struct {
bazelProperties properties
// namespacedVariableProperties is used for soong_config_module_type support
// in bp2build. Soong config modules allow users to set module properties
// based on custom product variables defined in Android.bp files. These
// variables are namespaced to prevent clobbering, especially when set from
// Makefiles.
namespacedVariableProperties namespacedVariableProperties
// baseModuleType is set when this module was created from a module type
// defined by a soong_config_module_type. Every soong_config_module_type
// "wraps" another module type, e.g. a soong_config_module_type can wrap a
// cc_defaults to a custom_cc_defaults, or cc_binary to a custom_cc_binary.
// This baseModuleType is set to the wrapped module type.
baseModuleType string
}
// Bazelable is specifies the interface for modules that can be converted to Bazel.
type Bazelable interface {
bazelProps() *properties
HasHandcraftedLabel() bool
HandcraftedLabel() string
GetBazelLabel(ctx BazelConversionPathContext, module blueprint.Module) string
ShouldConvertWithBp2build(ctx BazelConversionContext) bool
shouldConvertWithBp2build(ctx BazelConversionContext, module blueprint.Module) bool
GetBazelBuildFileContents(c Config, path, name string) (string, error)
ConvertWithBp2build(ctx TopDownMutatorContext)
// namespacedVariableProps is a map from a soong config variable namespace
// (e.g. acme, android) to a map of interfaces{}, which are really
// reflect.Struct pointers, representing the value of the
// soong_config_variables property of a module. The struct pointer is the
// one with the single member called Soong_config_variables, which itself is
// a struct containing fields for each supported feature in that namespace.
//
// The reason for using an slice of interface{} is to support defaults
// propagation of the struct pointers.
namespacedVariableProps() namespacedVariableProperties
setNamespacedVariableProps(props namespacedVariableProperties)
BaseModuleType() string
SetBaseModuleType(baseModuleType string)
}
// BazelModule is a lightweight wrapper interface around Module for Bazel-convertible modules.
type BazelModule interface {
Module
Bazelable
}
// InitBazelModule is a wrapper function that decorates a BazelModule with Bazel-conversion
// properties.
func InitBazelModule(module BazelModule) {
module.AddProperties(module.bazelProps())
module.bazelProps().Bazel_module.CanConvertToBazel = true
}
// bazelProps returns the Bazel properties for the given BazelModuleBase.
func (b *BazelModuleBase) bazelProps() *properties {
return &b.bazelProperties
}
func (b *BazelModuleBase) namespacedVariableProps() namespacedVariableProperties {
return b.namespacedVariableProperties
}
func (b *BazelModuleBase) setNamespacedVariableProps(props namespacedVariableProperties) {
b.namespacedVariableProperties = props
}
func (b *BazelModuleBase) BaseModuleType() string {
return b.baseModuleType
}
func (b *BazelModuleBase) SetBaseModuleType(baseModuleType string) {
b.baseModuleType = baseModuleType
}
// HasHandcraftedLabel returns whether this module has a handcrafted Bazel label.
func (b *BazelModuleBase) HasHandcraftedLabel() bool {
return b.bazelProperties.Bazel_module.Label != nil
}
// HandcraftedLabel returns the handcrafted label for this module, or empty string if there is none
func (b *BazelModuleBase) HandcraftedLabel() string {
return proptools.String(b.bazelProperties.Bazel_module.Label)
}
// GetBazelLabel returns the Bazel label for the given BazelModuleBase.
func (b *BazelModuleBase) GetBazelLabel(ctx BazelConversionPathContext, module blueprint.Module) string {
if b.HasHandcraftedLabel() {
return b.HandcraftedLabel()
}
if b.ShouldConvertWithBp2build(ctx) {
return bp2buildModuleLabel(ctx, module)
}
return "" // no label for unconverted module
}
// Configuration to decide if modules in a directory should default to true/false for bp2build_available
type Bp2BuildConfig map[string]BazelConversionConfigEntry
type BazelConversionConfigEntry int
const (
// A sentinel value to be used as a key in Bp2BuildConfig for modules with
// no package path. This is also the module dir for top level Android.bp
// modules.
BP2BUILD_TOPLEVEL = "."
// iota + 1 ensures that the int value is not 0 when used in the Bp2buildAllowlist map,
// which can also mean that the key doesn't exist in a lookup.
// all modules in this package and subpackages default to bp2build_available: true.
// allows modules to opt-out.
Bp2BuildDefaultTrueRecursively BazelConversionConfigEntry = iota + 1
// all modules in this package (not recursively) default to bp2build_available: true.
// allows modules to opt-out.
Bp2BuildDefaultTrue
// all modules in this package (not recursively) default to bp2build_available: false.
// allows modules to opt-in.
Bp2BuildDefaultFalse
)
var (
// Keep any existing BUILD files (and do not generate new BUILD files) for these directories
// in the synthetic Bazel workspace.
bp2buildKeepExistingBuildFile = map[string]bool{
// This is actually build/bazel/build.BAZEL symlinked to ./BUILD
".":/*recursive = */ false,
// build/bazel/examples/apex/... BUILD files should be generated, so
// build/bazel is not recursive. Instead list each subdirectory under
// build/bazel explicitly.
"build/bazel":/* recursive = */ false,
"build/bazel/examples/android_app":/* recursive = */ true,
"build/bazel/examples/java":/* recursive = */ true,
"build/bazel/bazel_skylib":/* recursive = */ true,
"build/bazel/rules":/* recursive = */ true,
"build/bazel/rules_cc":/* recursive = */ true,
"build/bazel/scripts":/* recursive = */ true,
"build/bazel/tests":/* recursive = */ true,
"build/bazel/platforms":/* recursive = */ true,
"build/bazel/product_variables":/* recursive = */ true,
"build/bazel_common_rules":/* recursive = */ true,
// build/make/tools/signapk BUILD file is generated, so build/make/tools is not recursive.
"build/make/tools":/* recursive = */ false,
"build/pesto":/* recursive = */ true,
// external/bazelbuild-rules_android/... is needed by mixed builds, otherwise mixed builds analysis fails
// e.g. ERROR: Analysis of target '@soong_injection//mixed_builds:buildroot' failed
"external/bazelbuild-rules_android":/* recursive = */ true,
"external/bazel-skylib":/* recursive = */ true,
"external/guava":/* recursive = */ true,
"external/error_prone":/* recursive = */ true,
"external/jsr305":/* recursive = */ true,
"frameworks/ex/common":/* recursive = */ true,
"packages/apps/Music":/* recursive = */ true,
"packages/apps/QuickSearchBox":/* recursive = */ true,
"packages/apps/WallpaperPicker":/* recursive = */ false,
"prebuilts/gcc":/* recursive = */ true,
"prebuilts/sdk":/* recursive = */ false,
"prebuilts/sdk/current/extras/app-toolkit":/* recursive = */ false,
"prebuilts/sdk/current/support":/* recursive = */ false,
"prebuilts/sdk/tools":/* recursive = */ false,
"prebuilts/r8":/* recursive = */ false,
}
// Configure modules in these directories to enable bp2build_available: true or false by default.
bp2buildDefaultConfig = Bp2BuildConfig{
"art/libdexfile": Bp2BuildDefaultTrueRecursively,
"bionic": Bp2BuildDefaultTrueRecursively,
"bootable/recovery/tools/recovery_l10n": Bp2BuildDefaultTrue,
"build/bazel/examples/soong_config_variables": Bp2BuildDefaultTrueRecursively,
"build/bazel/examples/apex/minimal": Bp2BuildDefaultTrueRecursively,
"build/make/tools/signapk": Bp2BuildDefaultTrue,
"build/soong": Bp2BuildDefaultTrue,
"build/soong/cc/libbuildversion": Bp2BuildDefaultTrue, // Skip tests subdir
"build/soong/cc/ndkstubgen": Bp2BuildDefaultTrue,
"build/soong/cc/symbolfile": Bp2BuildDefaultTrue,
"build/soong/scripts": Bp2BuildDefaultTrueRecursively,
"cts/common/device-side/nativetesthelper/jni": Bp2BuildDefaultTrueRecursively,
"development/apps/DevelopmentSettings": Bp2BuildDefaultTrue,
"development/apps/Fallback": Bp2BuildDefaultTrue,
"development/apps/WidgetPreview": Bp2BuildDefaultTrue,
"development/samples/BasicGLSurfaceView": Bp2BuildDefaultTrue,
"development/samples/BluetoothChat": Bp2BuildDefaultTrue,
"development/samples/BrokenKeyDerivation": Bp2BuildDefaultTrue,
"development/samples/Compass": Bp2BuildDefaultTrue,
"development/samples/ContactManager": Bp2BuildDefaultTrue,
"development/samples/FixedGridLayout": Bp2BuildDefaultTrue,
"development/samples/HelloEffects": Bp2BuildDefaultTrue,
"development/samples/Home": Bp2BuildDefaultTrue,
"development/samples/HoneycombGallery": Bp2BuildDefaultTrue,
"development/samples/JetBoy": Bp2BuildDefaultTrue,
"development/samples/KeyChainDemo": Bp2BuildDefaultTrue,
"development/samples/LceDemo": Bp2BuildDefaultTrue,
"development/samples/LunarLander": Bp2BuildDefaultTrue,
"development/samples/MultiResolution": Bp2BuildDefaultTrue,
"development/samples/MultiWindow": Bp2BuildDefaultTrue,
"development/samples/NotePad": Bp2BuildDefaultTrue,
"development/samples/Obb": Bp2BuildDefaultTrue,
"development/samples/RSSReader": Bp2BuildDefaultTrue,
"development/samples/ReceiveShareDemo": Bp2BuildDefaultTrue,
"development/samples/SearchableDictionary": Bp2BuildDefaultTrue,
"development/samples/SipDemo": Bp2BuildDefaultTrue,
"development/samples/SkeletonApp": Bp2BuildDefaultTrue,
"development/samples/Snake": Bp2BuildDefaultTrue,
"development/samples/SpellChecker/": Bp2BuildDefaultTrueRecursively,
"development/samples/ThemedNavBarKeyboard": Bp2BuildDefaultTrue,
"development/samples/ToyVpn": Bp2BuildDefaultTrue,
"development/samples/TtsEngine": Bp2BuildDefaultTrue,
"development/samples/USB/AdbTest": Bp2BuildDefaultTrue,
"development/samples/USB/MissileLauncher": Bp2BuildDefaultTrue,
"development/samples/VoiceRecognitionService": Bp2BuildDefaultTrue,
"development/samples/VoicemailProviderDemo": Bp2BuildDefaultTrue,
"development/sdk": Bp2BuildDefaultTrueRecursively,
"external/arm-optimized-routines": Bp2BuildDefaultTrueRecursively,
"external/boringssl": Bp2BuildDefaultTrueRecursively,
"external/bouncycastle": Bp2BuildDefaultTrue,
"external/brotli": Bp2BuildDefaultTrue,
"external/conscrypt": Bp2BuildDefaultTrue,
"external/fmtlib": Bp2BuildDefaultTrueRecursively,
"external/google-benchmark": Bp2BuildDefaultTrueRecursively,
"external/googletest": Bp2BuildDefaultTrueRecursively,
"external/gwp_asan": Bp2BuildDefaultTrueRecursively,
"external/jemalloc_new": Bp2BuildDefaultTrueRecursively,
"external/jsoncpp": Bp2BuildDefaultTrueRecursively,
"external/libcap": Bp2BuildDefaultTrueRecursively,
"external/libcxx": Bp2BuildDefaultTrueRecursively,
"external/libcxxabi": Bp2BuildDefaultTrueRecursively,
"external/libevent": Bp2BuildDefaultTrueRecursively,
"external/libpng": Bp2BuildDefaultTrueRecursively,
"external/lz4/lib": Bp2BuildDefaultTrue,
"external/lzma/C": Bp2BuildDefaultTrueRecursively,
"external/mdnsresponder": Bp2BuildDefaultTrueRecursively,
"external/minijail": Bp2BuildDefaultTrueRecursively,
"external/pcre": Bp2BuildDefaultTrueRecursively,
"external/protobuf": Bp2BuildDefaultTrueRecursively,
"external/python/six": Bp2BuildDefaultTrueRecursively,
"external/scudo": Bp2BuildDefaultTrueRecursively,
"external/selinux/libselinux": Bp2BuildDefaultTrueRecursively,
"external/selinux/libsepol": Bp2BuildDefaultTrueRecursively,
"external/zlib": Bp2BuildDefaultTrueRecursively,
"external/zstd": Bp2BuildDefaultTrueRecursively,
"frameworks/base/media/tests/MediaDump": Bp2BuildDefaultTrue,
"frameworks/base/startop/apps/test": Bp2BuildDefaultTrue,
"frameworks/native/libs/adbd_auth": Bp2BuildDefaultTrueRecursively,
"frameworks/native/opengl/tests/gl2_cameraeye": Bp2BuildDefaultTrue,
"frameworks/native/opengl/tests/gl2_java": Bp2BuildDefaultTrue,
"frameworks/native/opengl/tests/testLatency": Bp2BuildDefaultTrue,
"frameworks/native/opengl/tests/testPauseResume": Bp2BuildDefaultTrue,
"frameworks/native/opengl/tests/testViewport": Bp2BuildDefaultTrue,
"frameworks/proto_logging/stats/stats_log_api_gen": Bp2BuildDefaultTrueRecursively,
"libnativehelper": Bp2BuildDefaultTrueRecursively,
"packages/apps/DevCamera": Bp2BuildDefaultTrue,
"packages/apps/HTMLViewer": Bp2BuildDefaultTrue,
"packages/apps/Protips": Bp2BuildDefaultTrue,
"packages/modules/adb": Bp2BuildDefaultTrue,
"packages/modules/adb/apex": Bp2BuildDefaultTrue,
"packages/modules/adb/crypto": Bp2BuildDefaultTrueRecursively,
"packages/modules/adb/libs": Bp2BuildDefaultTrueRecursively,
"packages/modules/adb/pairing_auth": Bp2BuildDefaultTrueRecursively,
"packages/modules/adb/pairing_connection": Bp2BuildDefaultTrueRecursively,
"packages/modules/adb/proto": Bp2BuildDefaultTrueRecursively,
"packages/modules/adb/tls": Bp2BuildDefaultTrueRecursively,
"packages/providers/MediaProvider/tools/dialogs": Bp2BuildDefaultTrue,
"packages/screensavers/Basic": Bp2BuildDefaultTrue,
"packages/services/Car/tests/SampleRearViewCamera": Bp2BuildDefaultTrue,
"prebuilts/clang/host/linux-x86": Bp2BuildDefaultTrueRecursively,
"system/apex": Bp2BuildDefaultFalse, // TODO(b/207466993): flaky failures
"system/core/debuggerd": Bp2BuildDefaultTrueRecursively,
"system/core/diagnose_usb": Bp2BuildDefaultTrueRecursively,
"system/core/libasyncio": Bp2BuildDefaultTrue,
"system/core/libcrypto_utils": Bp2BuildDefaultTrueRecursively,
"system/core/libcutils": Bp2BuildDefaultTrueRecursively,
"system/core/libpackagelistparser": Bp2BuildDefaultTrueRecursively,
"system/core/libprocessgroup": Bp2BuildDefaultTrue,
"system/core/libprocessgroup/cgrouprc": Bp2BuildDefaultTrue,
"system/core/libprocessgroup/cgrouprc_format": Bp2BuildDefaultTrue,
"system/core/libsystem": Bp2BuildDefaultTrueRecursively,
"system/core/libutils": Bp2BuildDefaultTrueRecursively,
"system/core/libvndksupport": Bp2BuildDefaultTrueRecursively,
"system/core/property_service/libpropertyinfoparser": Bp2BuildDefaultTrueRecursively,
"system/libbase": Bp2BuildDefaultTrueRecursively,
"system/libprocinfo": Bp2BuildDefaultTrue,
"system/libziparchive": Bp2BuildDefaultTrueRecursively,
"system/logging/liblog": Bp2BuildDefaultTrueRecursively,
"system/sepolicy/apex": Bp2BuildDefaultTrueRecursively,
"system/timezone/apex": Bp2BuildDefaultTrueRecursively,
"system/timezone/output_data": Bp2BuildDefaultTrueRecursively,
"system/unwinding/libbacktrace": Bp2BuildDefaultTrueRecursively,
"system/unwinding/libunwindstack": Bp2BuildDefaultTrueRecursively,
"tools/apksig": Bp2BuildDefaultTrue,
"tools/platform-compat/java/android/compat": Bp2BuildDefaultTrueRecursively,
}
// Per-module denylist to always opt modules out of both bp2build and mixed builds.
bp2buildModuleDoNotConvertList = []string{
"libandroid_runtime_lazy", // depends on unconverted modules: libbinder_headers
"libcmd", // depends on unconverted modules: libbinder
"libdexfile_support_static", // Depends on unconverted module: libdexfile_external_headers
"libunwindstack_local", "libunwindstack_utils", "libc_malloc_debug", "libfdtrack", // Depends on unconverted module: libunwindstack
"libdexfile_support", // TODO(b/210546943): Enabled based on product variables.
"libdexfile_external_headers", // TODO(b/210546943): Enabled based on product variables.
"libunwindstack", // Depends on unconverted module libdexfile_support.
"libnativehelper_compat_libc++", // Broken compile: implicit declaration of function 'strerror_r' is invalid in C99
"chkcon", "sefcontext_compile", // depends on unconverted modules: libsepol
"libsepol", // TODO(b/207408632): Unsupported case of .l sources in cc library rules
"gen-kotlin-build-file.py", // module has same name as source
"libactivitymanager_aidl", // TODO(b/207426160): Depends on activity_manager_procstate_aidl, which is an aidl filegroup.
"libnativehelper_lazy_mts_jni", "libnativehelper_mts_jni", // depends on unconverted modules: libgmock_ndk
"libnativetesthelper_jni", "libgmock_main_ndk", "libgmock_ndk", // depends on unconverted module: libgtest_ndk_c++
"statslog-framework-java-gen", "statslog.cpp", "statslog.h", "statslog.rs", "statslog_header.rs", // depends on unconverted modules: stats-log-api-gen
"stats-log-api-gen", // depends on unconverted modules: libstats_proto_host, libprotobuf-cpp-full
"libstatslog", // depends on unconverted modules: statslog.cpp, statslog.h, ...
"cmd", // depends on unconverted module packagemanager_aidl-cpp, of unsupported type aidl_interface
"servicedispatcher", // depends on unconverted module android.debug_aidl, of unsupported type aidl_interface
"libutilscallstack", // depends on unconverted module libbacktrace
"libbacktrace", // depends on unconverted module libunwindstack
"libdebuggerd_handler", // depends on unconverted module libdebuggerd_handler_core
"libdebuggerd_handler_core", "libdebuggerd_handler_fallback", // depends on unconverted module libdebuggerd
"unwind_for_offline", // depends on unconverted module libunwindstack_utils
"libdebuggerd", // depends on unconverted modules libdexfile_support, libunwindstack, gwp_asan_crash_handler, libtombstone_proto, libprotobuf-cpp-lite
"libdexfile_static", // depends on libartpalette, libartbase, libdexfile, which are of unsupported type: art_cc_library.
"host_bionic_linker_asm", // depends on extract_linker, a go binary.
"host_bionic_linker_script", // depends on extract_linker, a go binary.
"static_crasher", // depends on unconverted modules: libdebuggerd_handler
"pbtombstone", "crash_dump", // depends on libdebuggerd, libunwindstack
"libbase_ndk", // http://b/186826477, fails to link libctscamera2_jni for device (required for CtsCameraTestCases)
"libprotobuf-python", // contains .proto sources
"libprotobuf-internal-protos", // b/210751803, we don't handle path property for filegroups
"libprotobuf-internal-python-srcs", // b/210751803, we don't handle path property for filegroups
"libprotobuf-java-full", // b/210751803, we don't handle path property for filegroups
"libprotobuf-java-util-full", // b/210751803, we don't handle path property for filegroups
"conscrypt", // b/210751803, we don't handle path property for filegroups
"conv_linker_config", // depends on linker_config_proto, a python lib with proto sources
"brotli-fuzzer-corpus", // b/202015218: outputs are in location incompatible with bazel genrule handling.
// b/203369847: multiple genrules in the same package creating the same file
// //development/sdk/...
"platform_tools_properties",
"build_tools_source_properties",
// APEX support
"com.android.runtime", // depends on unconverted modules: bionic-linker-config, linkerconfig
"libgtest_ndk_c++", // b/201816222: Requires sdk_version support.
"libgtest_main_ndk_c++", // b/201816222: Requires sdk_version support.
"abb", // depends on unconverted modules: libcmd, libbinder
"adb", // depends on unconverted modules: AdbWinApi, libadb_host, libandroidfw, libapp_processes_protos_full, libfastdeploy_host, libopenscreen-discovery, libopenscreen-platform-impl, libusb, bin2c_fastdeployagent, AdbWinUsbApi
"libadb_host", // depends on unconverted modules: libopenscreen-discovery, libopenscreen-platform-impl, libusb, AdbWinApi
"libfastdeploy_host", // depends on unconverted modules: libandroidfw, libusb, AdbWinApi
"linker", // depends on unconverted modules: libdebuggerd_handler_fallback
"linker_reloc_bench_main", // depends on unconverted modules: liblinker_reloc_bench_*
"versioner", // depends on unconverted modules: libclang_cxx_host, libLLVM_host, of unsupported type llvm_host_prebuilt_library_shared
"linkerconfig", // http://b/202876379 has arch-variant static_executable
"mdnsd", // http://b/202876379 has arch-variant static_executable
"CarHTMLViewer", // depends on unconverted modules android.car-stubs, car-ui-lib
"libdexfile", // depends on unconverted modules: dexfile_operator_srcs, libartbase, libartpalette,
"libdexfiled", // depends on unconverted modules: dexfile_operator_srcs, libartbased, libartpalette
}
// Per-module denylist of cc_library modules to only generate the static
// variant if their shared variant isn't ready or buildable by Bazel.
bp2buildCcLibraryStaticOnlyList = []string{}
// Per-module denylist to opt modules out of mixed builds. Such modules will
// still be generated via bp2build.
mixedBuildsDisabledList = []string{
"art_libdexfile_dex_instruction_list_header", // breaks libart_mterp.armng, header not found
"libbrotli", // http://b/198585397, ld.lld: error: bionic/libc/arch-arm64/generic/bionic/memmove.S:95:(.text+0x10): relocation R_AARCH64_CONDBR19 out of range: -1404176 is not in [-1048576, 1048575]; references __memcpy
"minijail_constants_json", // http://b/200899432, bazel-built cc_genrule does not work in mixed build when it is a dependency of another soong module.
"cap_names.h", // TODO(b/204913827) runfiles need to be handled in mixed builds
"libcap", // TODO(b/204913827) runfiles need to be handled in mixed builds
"libprotobuf-cpp-full", "libprotobuf-cpp-lite", // Unsupported product&vendor suffix. b/204811222 and b/204810610.
// Depends on libprotobuf-cpp-*
"libadb_pairing_connection",
"libadb_pairing_connection_static",
"libadb_pairing_server", "libadb_pairing_server_static",
}
// Used for quicker lookups
bp2buildModuleDoNotConvert = map[string]bool{}
bp2buildCcLibraryStaticOnly = map[string]bool{}
mixedBuildsDisabled = map[string]bool{}
)
func init() {
for _, moduleName := range bp2buildModuleDoNotConvertList {
bp2buildModuleDoNotConvert[moduleName] = true
}
for _, moduleName := range bp2buildCcLibraryStaticOnlyList {
bp2buildCcLibraryStaticOnly[moduleName] = true
}
for _, moduleName := range mixedBuildsDisabledList {
mixedBuildsDisabled[moduleName] = true
}
}
func GenerateCcLibraryStaticOnly(moduleName string) bool {
return bp2buildCcLibraryStaticOnly[moduleName]
}
func ShouldKeepExistingBuildFileForDir(dir string) bool {
if _, ok := bp2buildKeepExistingBuildFile[dir]; ok {
// Exact dir match
return true
}
// Check if subtree match
for prefix, recursive := range bp2buildKeepExistingBuildFile {
if recursive {
if strings.HasPrefix(dir, prefix+"/") {
return true
}
}
}
// Default
return false
}
// MixedBuildsEnabled checks that a module is ready to be replaced by a
// converted or handcrafted Bazel target.
func (b *BazelModuleBase) MixedBuildsEnabled(ctx ModuleContext) bool {
if ctx.Os() == Windows {
// Windows toolchains are not currently supported.
return false
}
if !ctx.Module().Enabled() {
return false
}
if !ctx.Config().BazelContext.BazelEnabled() {
return false
}
if !convertedToBazel(ctx, ctx.Module()) {
return false
}
if GenerateCcLibraryStaticOnly(ctx.Module().Name()) {
// Don't use partially-converted cc_library targets in mixed builds,
// since mixed builds would generally rely on both static and shared
// variants of a cc_library.
return false
}
return !mixedBuildsDisabled[ctx.Module().Name()]
}
// ConvertedToBazel returns whether this module has been converted (with bp2build or manually) to Bazel.
func convertedToBazel(ctx BazelConversionContext, module blueprint.Module) bool {
b, ok := module.(Bazelable)
if !ok {
return false
}
return b.shouldConvertWithBp2build(ctx, module) || b.HasHandcraftedLabel()
}
// ShouldConvertWithBp2build returns whether the given BazelModuleBase should be converted with bp2build.
func (b *BazelModuleBase) ShouldConvertWithBp2build(ctx BazelConversionContext) bool {
return b.shouldConvertWithBp2build(ctx, ctx.Module())
}
func (b *BazelModuleBase) shouldConvertWithBp2build(ctx BazelConversionContext, module blueprint.Module) bool {
if bp2buildModuleDoNotConvert[module.Name()] {
return false
}
if !b.bazelProps().Bazel_module.CanConvertToBazel {
return false
}
packagePath := ctx.OtherModuleDir(module)
config := ctx.Config().bp2buildPackageConfig
// This is a tristate value: true, false, or unset.
propValue := b.bazelProperties.Bazel_module.Bp2build_available
if bp2buildDefaultTrueRecursively(packagePath, config) {
// Allow modules to explicitly opt-out.
return proptools.BoolDefault(propValue, true)
}
// Allow modules to explicitly opt-in.
return proptools.BoolDefault(propValue, false)
}
// bp2buildDefaultTrueRecursively checks that the package contains a prefix from the
// set of package prefixes where all modules must be converted. That is, if the
// package is x/y/z, and the list contains either x, x/y, or x/y/z, this function will
// return true.
//
// However, if the package is x/y, and it matches a Bp2BuildDefaultFalse "x/y" entry
// exactly, this module will return false early.
//
// This function will also return false if the package doesn't match anything in
// the config.
func bp2buildDefaultTrueRecursively(packagePath string, config Bp2BuildConfig) bool {
ret := false
// Check if the package path has an exact match in the config.
if config[packagePath] == Bp2BuildDefaultTrue || config[packagePath] == Bp2BuildDefaultTrueRecursively {
return true
} else if config[packagePath] == Bp2BuildDefaultFalse {
return false
}
// If not, check for the config recursively.
packagePrefix := ""
// e.g. for x/y/z, iterate over x, x/y, then x/y/z, taking the final value from the allowlist.
for _, part := range strings.Split(packagePath, "/") {
packagePrefix += part
if config[packagePrefix] == Bp2BuildDefaultTrueRecursively {
// package contains this prefix and this prefix should convert all modules
return true
}
// Continue to the next part of the package dir.
packagePrefix += "/"
}
return ret
}
// GetBazelBuildFileContents returns the file contents of a hand-crafted BUILD file if available or
// an error if there are errors reading the file.
// TODO(b/181575318): currently we append the whole BUILD file, let's change that to do
// something more targeted based on the rule type and target.
func (b *BazelModuleBase) GetBazelBuildFileContents(c Config, path, name string) (string, error) {
if !strings.Contains(b.HandcraftedLabel(), path) {
return "", fmt.Errorf("%q not found in bazel_module.label %q", path, b.HandcraftedLabel())
}
name = filepath.Join(path, name)
f, err := c.fs.Open(name)
if err != nil {
return "", err
}
defer f.Close()
data, err := ioutil.ReadAll(f)
if err != nil {
return "", err
}
return string(data[:]), nil
}
func registerBp2buildConversionMutator(ctx RegisterMutatorsContext) {
ctx.TopDown("bp2build_conversion", convertWithBp2build).Parallel()
}
func convertWithBp2build(ctx TopDownMutatorContext) {
bModule, ok := ctx.Module().(Bazelable)
if !ok || !bModule.shouldConvertWithBp2build(ctx, ctx.Module()) {
return
}
bModule.ConvertWithBp2build(ctx)
}
// GetMainClassInManifest scans the manifest file specified in filepath and returns
// the value of attribute Main-Class in the manifest file if it exists, or returns error.
// WARNING: this is for bp2build converters of java_* modules only.
func GetMainClassInManifest(c Config, filepath string) (string, error) {
file, err := c.fs.Open(filepath)
if err != nil {
return "", err
}
scanner := bufio.NewScanner(file)
for scanner.Scan() {
line := scanner.Text()
if strings.HasPrefix(line, "Main-Class:") {
return strings.TrimSpace(line[len("Main-Class:"):]), nil
}
}
return "", errors.New("Main-Class is not found.")
}