Convert cc_aconfig_library to bazel.

Bug: 297358249
Test: Unit test and CI
Change-Id: Ic84128b0df16efe4255b52b83670ec9902c09383

aconfig/cc_aconfig_library.go

@@ -16,6 +16,7 @@ package aconfig
 
 import (
 	"android/soong/android"
+	"android/soong/bazel"
 	"android/soong/cc"
 
 	"github.com/google/blueprint"
@@ -31,6 +32,8 @@ type ccDeclarationsTagType struct {
 
 var ccDeclarationsTag = ccDeclarationsTagType{}
 
+const baseLibDep = "server_configurable_flags"
+
 type CcAconfigLibraryProperties struct {
 	// name of the aconfig_declarations module to generate a library for
 	Aconfig_declarations string
@@ -72,7 +75,7 @@ func (this *CcAconfigLibraryCallbacks) GeneratorDeps(ctx cc.DepsContext, deps cc
 	}
 
 	// Add a dependency for the aconfig flags base library
-	deps.SharedLibs = append(deps.SharedLibs, "server_configurable_flags")
+	deps.SharedLibs = append(deps.SharedLibs, baseLibDep)
 	// TODO: It'd be really nice if we could reexport this library and not make everyone do it.
 
 	return deps
@@ -138,3 +141,33 @@ func (this *CcAconfigLibraryCallbacks) GeneratorBuildActions(ctx cc.ModuleContex
 		},
 	})
 }
+
+type bazelCcAconfigLibraryAttributes struct {
+	Aconfig_declarations bazel.LabelAttribute
+	Dynamic_deps         bazel.LabelListAttribute
+}
+
+// Convert the cc_aconfig_library module to bazel.
+//
+// This method is called from cc.ConvertWithBp2build to actually convert the
+// cc_aconfig_library module. This is necessary since the factory method of this
+// module type returns a cc library and the bp2build conversion is called on the
+// cc library type.
+
+func (this *CcAconfigLibraryCallbacks) GeneratorBp2build(ctx android.Bp2buildMutatorContext) bool {
+	if ctx.ModuleType() != "cc_aconfig_library" {
+		return false
+	}
+
+	attrs := bazelCcAconfigLibraryAttributes{
+		Aconfig_declarations: *bazel.MakeLabelAttribute(android.BazelLabelForModuleDepSingle(ctx, this.properties.Aconfig_declarations).Label),
+		Dynamic_deps:         bazel.MakeLabelListAttribute(android.BazelLabelForModuleDeps(ctx, []string{baseLibDep})),
+	}
+	props := bazel.BazelTargetModuleProperties{
+		Rule_class:        "cc_aconfig_library",
+		Bzl_load_location: "//build/bazel/rules/cc:cc_aconfig_library.bzl",
+	}
+
+	ctx.CreateBazelTargetModule(props, android.CommonAttributes{Name: ctx.ModuleName()}, &attrs)
+	return true
+}

android/allowlists/allowlists.go

@@ -922,6 +922,7 @@ var (
 		"aconfig_values",
 		"aidl_interface_headers",
 		"bpf",
+		"cc_aconfig_library",
 		"cc_prebuilt_library",
 		"cc_prebuilt_library_headers",
 		"cc_prebuilt_library_shared",

android/config.go

@@ -200,7 +200,7 @@ func (c Config) ReleaseVersion() string {
 // The aconfig value set passed to aconfig, derived from RELEASE_VERSION
 func (c Config) ReleaseAconfigValueSets() string {
 	// This logic to handle both Soong module name and bazel target is temporary in order to
-	// provide backward compatibility where aosp and vendor/google both have the release
+	// provide backward compatibility where aosp and internal both have the release
 	// aconfig value set but can't be updated at the same time to use bazel target
 	value := strings.Split(c.config.productVariables.ReleaseAconfigValueSets, ":")
 	value_len := len(value)

bp2build/aconfig_conversion_test.go

@@ -19,10 +19,12 @@ import (
 
 	"android/soong/aconfig"
 	"android/soong/android"
+	"android/soong/cc"
 )
 
 func registerAconfigModuleTypes(ctx android.RegistrationContext) {
 	aconfig.RegisterBuildComponents(ctx)
+	ctx.RegisterModuleType("cc_library", cc.LibraryFactory)
 }
 
 func TestAconfigDeclarations(t *testing.T) {
@@ -90,3 +92,46 @@ func TestAconfigValues(t *testing.T) {
 		ExpectedBazelTargets: expectedBazelTargets,
 	})
 }
+
+func TestCcAconfigLibrary(t *testing.T) {
+	bp := `
+	aconfig_declarations {
+		name: "foo_aconfig_declarations",
+		srcs: [
+			"foo1.aconfig",
+		],
+		package: "com.android.foo",
+	}
+	cc_library {
+			name: "server_configurable_flags",
+			srcs: ["bar.cc"],
+			bazel_module: { bp2build_available: false },
+	}
+	cc_aconfig_library {
+			name: "foo",
+			aconfig_declarations: "foo_aconfig_declarations",
+	}
+	`
+	expectedBazelTargets := []string{
+		MakeBazelTargetNoRestrictions(
+			"aconfig_declarations",
+			"foo_aconfig_declarations",
+			AttrNameToString{
+				"srcs":    `["foo1.aconfig"]`,
+				"package": `"com.android.foo"`,
+			},
+		),
+		MakeBazelTargetNoRestrictions(
+			"cc_aconfig_library",
+			"foo",
+			AttrNameToString{
+				"aconfig_declarations":   `":foo_aconfig_declarations"`,
+				"dynamic_deps":           `[":server_configurable_flags"]`,
+				"target_compatible_with": `["//build/bazel/platforms/os:android"]`,
+			},
+		)}
+	RunBp2BuildTestCase(t, registerAconfigModuleTypes, Bp2buildTestCase{
+		Blueprint:            bp,
+		ExpectedBazelTargets: expectedBazelTargets,
+	})
+}

cc/cc.go

@@ -589,6 +589,7 @@ type Generator interface {
 	GeneratorFlags(ctx ModuleContext, flags Flags, deps PathDeps) Flags
 	GeneratorSources(ctx ModuleContext) GeneratedSource
 	GeneratorBuildActions(ctx ModuleContext, flags Flags, deps PathDeps)
+	GeneratorBp2build(ctx android.Bp2buildMutatorContext) bool
 }
 
 // compiler is the interface for a compiler helper object. Different module decorators may implement
@@ -4215,6 +4216,16 @@ func (c *Module) typ() moduleType {
 
 // ConvertWithBp2build converts Module to Bazel for bp2build.
 func (c *Module) ConvertWithBp2build(ctx android.Bp2buildMutatorContext) {
+	if len(c.generators) > 0 {
+		allConverted := true
+		for _, generator := range c.generators {
+			allConverted = allConverted && generator.GeneratorBp2build(ctx)
+		}
+		if allConverted {
+			return
+		}
+	}
+
 	prebuilt := c.IsPrebuilt()
 	switch c.typ() {
 	case binary:

cc/generated_cc_library.go

@@ -28,9 +28,8 @@ func GeneratedCcLibraryModuleFactory(moduleName string, callbacks Generator) and
 		staticAndSharedLibrarySdkMemberType,
 	}
 
-	//	TODO: Need to be bazelable
-	//	module.bazelable = true
-	//	module.bazelHandler = &ccLibraryBazelHandler{module: module}
+	module.bazelable = true
+	module.bazelHandler = &ccLibraryBazelHandler{module: module}
 
 	module.generators = append(module.generators, callbacks)