Implement bp2build converter for rust_library
Test: go test
Bug: 297294749
Change-Id: I5400fe2c0fe2097b7a5810c736fbd1de4f35c6f7
diff --git a/rust/library.go b/rust/library.go
index 419fcfc..da386b3 100644
--- a/rust/library.go
+++ b/rust/library.go
@@ -20,7 +20,10 @@
"strings"
"android/soong/android"
+ "android/soong/bazel"
"android/soong/cc"
+
+ "github.com/google/blueprint/proptools"
)
var (
@@ -398,6 +401,8 @@
func NewRustLibrary(hod android.HostOrDeviceSupported) (*Module, *libraryDecorator) {
module := newModule(hod, android.MultilibBoth)
+ android.InitBazelModule(module)
+
library := &libraryDecorator{
MutatedProperties: LibraryMutatedProperties{
BuildDylib: false,
@@ -793,3 +798,92 @@
// TODO(185577950): If support for generated headers is added, they need to be collected here as well.
l.collectedSnapshotHeaders = ret
}
+
+type rustLibraryAttributes struct {
+ Srcs bazel.LabelListAttribute
+ Compile_data bazel.LabelListAttribute
+ Crate_name bazel.StringAttribute
+ Edition bazel.StringAttribute
+ Crate_features bazel.StringListAttribute
+ Deps bazel.LabelListAttribute
+ Rustc_flags bazel.StringListAttribute
+}
+
+func libraryBp2build(ctx android.TopDownMutatorContext, m *Module) {
+ lib := m.compiler.(*libraryDecorator)
+
+ var srcs bazel.LabelList
+ var compileData bazel.LabelList
+ var rustcFLags []string
+
+ // This is a workaround by assuming the conventions that rust crate repos are structured
+ // while waiting for the sandboxing work to complete.
+ // TODO: When crate_root prop is set which enforces inputs sandboxing,
+ // always use `srcs` and `compile_data` props to generate `srcs` and `compile_data` attributes
+ // instead of using globs.
+ if lib.baseCompiler.Properties.Srcs[0] == "src/lib.rs" {
+ srcs = android.BazelLabelForModuleSrc(ctx, []string{"src/**/*.rs"})
+ compileData = android.BazelLabelForModuleSrc(
+ ctx,
+ []string{
+ "src/**/*.proto",
+ "examples/**/*.rs",
+ "**/*.md",
+ },
+ )
+ } else {
+ srcs = android.BazelLabelForModuleSrc(ctx, lib.baseCompiler.Properties.Srcs)
+ }
+
+ for _, cfg := range lib.baseCompiler.Properties.Cfgs {
+ rustcFLags = append(rustcFLags, fmt.Sprintf("--cfg=%s", cfg))
+ }
+
+ deps := android.BazelLabelForModuleDeps(ctx, append(
+ lib.baseCompiler.Properties.Rustlibs,
+ lib.baseCompiler.Properties.Rlibs...,
+ ))
+
+ attrs := &rustLibraryAttributes{
+ Srcs: bazel.MakeLabelListAttribute(
+ srcs,
+ ),
+ Compile_data: bazel.MakeLabelListAttribute(
+ compileData,
+ ),
+ Crate_name: bazel.StringAttribute{
+ Value: &lib.baseCompiler.Properties.Crate_name,
+ },
+ Edition: bazel.StringAttribute{
+ Value: lib.baseCompiler.Properties.Edition,
+ },
+ Crate_features: bazel.StringListAttribute{
+ Value: lib.baseCompiler.Properties.Features,
+ },
+ Deps: bazel.MakeLabelListAttribute(
+ deps,
+ ),
+ Rustc_flags: bazel.StringListAttribute{
+ Value: append(
+ rustcFLags,
+ lib.baseCompiler.Properties.Flags...,
+ ),
+ },
+ }
+
+ // TODO(b/290790800): Remove the restriction when rust toolchain for android is implemented
+ var restriction bazel.BoolAttribute
+ restriction.SetSelectValue(bazel.OsConfigurationAxis, "android", proptools.BoolPtr(false))
+
+ ctx.CreateBazelTargetModuleWithRestrictions(
+ bazel.BazelTargetModuleProperties{
+ Rule_class: "rust_library",
+ Bzl_load_location: "@rules_rust//rust:defs.bzl",
+ },
+ android.CommonAttributes{
+ Name: m.Name(),
+ },
+ attrs,
+ restriction,
+ )
+}
diff --git a/rust/rust.go b/rust/rust.go
index 689ff38..edd04ac 100644
--- a/rust/rust.go
+++ b/rust/rust.go
@@ -16,6 +16,7 @@
import (
"android/soong/bloaty"
+ "android/soong/ui/metrics/bp2build_metrics_proto"
"fmt"
"strings"
@@ -169,6 +170,8 @@
apexSdkVersion android.ApiLevel
transitiveAndroidMkSharedLibs *android.DepSet[string]
+
+ android.BazelModuleBase
}
func (mod *Module) Header() bool {
@@ -1841,6 +1844,14 @@
return ""
}
+func (m *Module) ConvertWithBp2build(ctx android.TopDownMutatorContext) {
+ if ctx.ModuleType() == "rust_library_host" || ctx.ModuleType() == "rust_library" {
+ libraryBp2build(ctx, m)
+ } else {
+ ctx.MarkBp2buildUnconvertible(bp2build_metrics_proto.UnconvertedReasonType_TYPE_UNSUPPORTED, "")
+ }
+}
+
var Bool = proptools.Bool
var BoolDefault = proptools.BoolDefault
var String = proptools.String