Add option to use protobuf3
Users of the rust_protobuf module can use the 'use_protobuf3'
option to select version 3 of the protobuf crate instead of the
current default of version 2. This unblocks teams that would like
to use protobuf 3 immediately and provides a mechanism for us to
incrementally migrate users of protobuf 2 to protobuf 3.
Test: Adds tests that are executed during every build.
Bug: 270895633
Change-Id: Ib6a18b77cfa7dc3cc604cea05269004b3712bbb6
diff --git a/rust/protobuf_test.go b/rust/protobuf_test.go
index 0aa4549..b723f3f 100644
--- a/rust/protobuf_test.go
+++ b/rust/protobuf_test.go
@@ -69,6 +69,55 @@
}
}
+func TestRustProtobuf3(t *testing.T) {
+ ctx := testRust(t, `
+ rust_protobuf {
+ name: "librust_proto",
+ protos: ["buf.proto", "proto.proto"],
+ crate_name: "rust_proto",
+ source_stem: "buf",
+ use_protobuf3: true,
+ shared_libs: ["libfoo_shared"],
+ static_libs: ["libfoo_static"],
+ }
+ cc_library_shared {
+ name: "libfoo_shared",
+ export_include_dirs: ["shared_include"],
+ }
+ cc_library_static {
+ name: "libfoo_static",
+ export_include_dirs: ["static_include"],
+ }
+ `)
+ // Check that libprotobuf is added as a dependency.
+ librust_proto := ctx.ModuleForTests("librust_proto", "android_arm64_armv8-a_dylib").Module().(*Module)
+ if !android.InList("libprotobuf", librust_proto.Properties.AndroidMkDylibs) {
+ t.Errorf("libprotobuf dependency missing for rust_protobuf (dependency missing from AndroidMkDylibs)")
+ }
+
+ // Make sure the correct plugin is being used.
+ librust_proto_out := ctx.ModuleForTests("librust_proto", "android_arm64_armv8-a_source").Output("buf.rs")
+ cmd := librust_proto_out.RuleParams.Command
+ if w := "protoc-gen-rust"; !strings.Contains(cmd, w) {
+ t.Errorf("expected %q in %q", w, cmd)
+ }
+
+ // Check exported include directories
+ if w := "-Ishared_include"; !strings.Contains(cmd, w) {
+ t.Errorf("expected %q in %q", w, cmd)
+ }
+ if w := "-Istatic_include"; !strings.Contains(cmd, w) {
+ t.Errorf("expected %q in %q", w, cmd)
+ }
+
+ // Check proto.rs, the second protobuf, is listed as an output
+ librust_proto_outputs := ctx.ModuleForTests("librust_proto", "android_arm64_armv8-a_source").AllOutputs()
+ if android.InList("proto.rs", librust_proto_outputs) {
+ t.Errorf("rust_protobuf is not producing multiple outputs; expected 'proto.rs' in list, got: %#v ",
+ librust_proto_outputs)
+ }
+}
+
func TestRustGrpc(t *testing.T) {
ctx := testRust(t, `
rust_protobuf {