Generate BUILD files for every directory that has an Android.bp file. (2a4fc3ec) · Commits · e / os / android_build_soong

android/bazel.go

+51 −2

Original line number	Diff line number	Diff line
		@@ -126,6 +126,42 @@ const (
		)

		var (
		// Do not write BUILD files for these directories
		// NOTE: this is not recursive
		bp2buildDoNotWriteBuildFileList = []string{
		// Don't generate these BUILD files - because external BUILD files already exist
		"external/boringssl",
		"external/brotli",
		"external/dagger2",
		"external/flatbuffers",
		"external/gflags",
		"external/google-fruit",
		"external/grpc-grpc",
		"external/grpc-grpc/test/core/util",
		"external/grpc-grpc/test/cpp/common",
		"external/grpc-grpc/third_party/address_sorting",
		"external/nanopb-c",
		"external/nos/host/generic",
		"external/nos/host/generic/libnos",
		"external/nos/host/generic/libnos/generator",
		"external/nos/host/generic/libnos_datagram",
		"external/nos/host/generic/libnos_transport",
		"external/nos/host/generic/nugget/proto",
		"external/perfetto",
		"external/protobuf",
		"external/rust/cxx",
		"external/rust/cxx/demo",
		"external/ruy",
		"external/tensorflow",
		"external/tensorflow/tensorflow/lite",
		"external/tensorflow/tensorflow/lite/java",
		"external/tensorflow/tensorflow/lite/kernels",
		"external/tflite-support",
		"external/tinyalsa_new",
		"external/wycheproof",
		"external/libyuv",
		}

		// Configure modules in these directories to enable bp2build_available: true or false by default.
		bp2buildDefaultConfig = Bp2BuildConfig{
		"bionic": Bp2BuildDefaultTrueRecursively,
		@@ -190,11 +226,16 @@ var (
		}

		// Used for quicker lookups
		bp2buildDoNotWriteBuildFile = map[string]bool{}
		bp2buildModuleDoNotConvert = map[string]bool{}
		mixedBuildsDisabled = map[string]bool{}
		)

		func init() {
		for _, moduleName := range bp2buildDoNotWriteBuildFileList {
		bp2buildDoNotWriteBuildFile[moduleName] = true
		}

		for _, moduleName := range bp2buildModuleDoNotConvertList {
		bp2buildModuleDoNotConvert[moduleName] = true
		}
		@@ -204,6 +245,14 @@ func init() {
		}
		}

		func ShouldWriteBuildFileForDir(dir string) bool {
		if _, ok := bp2buildDoNotWriteBuildFile[dir]; ok {
		return false
		} else {
		return true
		}
		}

		// MixedBuildsEnabled checks that a module is ready to be replaced by a
		// converted or handcrafted Bazel target.
		func (b *BazelModuleBase) MixedBuildsEnabled(ctx BazelConversionPathContext) bool {

bp2build/bp2build.go

+1 −1

Original line number	Diff line number	Diff line
		@@ -28,7 +28,7 @@ func Codegen(ctx *CodegenContext) CodegenMetrics {
		outputDir := android.PathForOutput(ctx, "bp2build")
		android.RemoveAllOutputDir(outputDir)

		buildToTargets, metrics := GenerateBazelTargets(ctx)
		buildToTargets, metrics := GenerateBazelTargets(ctx, true)

		filesToWrite := CreateBazelFiles(nil, buildToTargets, ctx.mode)

bp2build/build_conversion.go

+16 −1

Original line number	Diff line number	Diff line
		@@ -176,7 +176,7 @@ func propsToAttributes(props map[string]string) string {
		return attributes
		}

		func GenerateBazelTargets(ctx *CodegenContext) (map[string]BazelTargets, CodegenMetrics) {
		func GenerateBazelTargets(ctx *CodegenContext, generateFilegroups bool) (map[string]BazelTargets, CodegenMetrics) {
		buildFileToTargets := make(map[string]BazelTargets)
		buildFileToAppend := make(map[string]bool)

		@@ -185,9 +185,13 @@ func GenerateBazelTargets(ctx *CodegenContext) (map[string]BazelTargets, Codegen
		RuleClassCount: make(map[string]int),
		}

		dirs := make(map[string]bool)

		bpCtx := ctx.Context()
		bpCtx.VisitAllModules(func(m blueprint.Module) {
		dir := bpCtx.ModuleDir(m)
		dirs[dir] = true

		var t BazelTarget

		switch ctx.Mode() {
		@@ -230,6 +234,17 @@ func GenerateBazelTargets(ctx *CodegenContext) (map[string]BazelTargets, Codegen

		buildFileToTargets[dir] = append(buildFileToTargets[dir], t)
		})
		if generateFilegroups {
		// Add a filegroup target that exposes all sources in the subtree of this package
		// NOTE: This also means we generate a BUILD file for every Android.bp file (as long as it has at least one module)
		for dir, _ := range dirs {
		buildFileToTargets[dir] = append(buildFileToTargets[dir], BazelTarget{
		name: "bp2build_all_srcs",
		content: `filegroup(name = "bp2build_all_srcs", srcs = glob(["*/"]))`,
		ruleClass: "filegroup",
		})
		}
		}

		return buildFileToTargets, metrics
		}

bp2build/conversion.go

+5 −0

Original line number	Diff line number	Diff line
		@@ -2,6 +2,7 @@ package bp2build

		import (
		"android/soong/android"
		"fmt"
		"reflect"
		"sort"
		"strings"
		@@ -48,6 +49,10 @@ func CreateBazelFiles(
		func createBuildFiles(buildToTargets map[string]BazelTargets, mode CodegenMode) []BazelFile {
		files := make([]BazelFile, 0, len(buildToTargets))
		for _, dir := range android.SortedStringKeys(buildToTargets) {
		if !android.ShouldWriteBuildFileForDir(dir) {
		fmt.Printf("[bp2build] Not writing generated BUILD file for dir: '%s'\n", dir)
		continue
		}
		targets := buildToTargets[dir]
		sort.Slice(targets, func(i, j int) bool {
		// this will cover all bp2build generated targets

bp2build/testing.go

+2 −1

Original line number	Diff line number	Diff line
		@@ -183,6 +183,7 @@ func customBp2BuildMutatorFromStarlark(ctx android.TopDownMutatorContext) {

		// Helper method for tests to easily access the targets in a dir.
		func generateBazelTargetsForDir(codegenCtx *CodegenContext, dir string) BazelTargets {
		buildFileToTargets, _ := GenerateBazelTargets(codegenCtx)
		// TODO: Set generateFilegroups to true and/or remove the generateFilegroups argument completely
		buildFileToTargets, _ := GenerateBazelTargets(codegenCtx, false)
		return buildFileToTargets[dir]
		}