[wpiutil] Change C++ protobuf to nanopb

[ThadHouse]

No description provided.

[Gold856]

By convention, the generated folder hierarchy mirrors the folder hierarchy in main, so the generated files should go under src/generated/main/native/cpp instead of src/generated/main/cpp.

[Gold856]

Here's a patch that should fix Bazel:

diff --git a/wpiutil/BUILD.bazel b/wpiutil/BUILD.bazel
index 0a97abe53..33760ee47 100644
--- a/wpiutil/BUILD.bazel
+++ b/wpiutil/BUILD.bazel
@@ -225,6 +225,14 @@ cc_library(
     visibility = ["//visibility:public"],
 )
 
+cc_library(
+    name = "nanopb-test-headers",
+    hdrs = glob(["src/generated/test/native/cpp/*.h"]),
+    includes = ["src/generated/test/native/cpp"],
+    strip_include_prefix = "src/generated/test/native/cpp",
+    visibility = ["//wpiutil:__subpackages__"],
+)
+
 cc_test(
     name = "wpiutil-cpp-test",
     size = "small",
@@ -237,6 +245,7 @@ cc_test(
     deps = [
         ":wpiutil.static",
         ":wpiutil-testlib",
+        ":nanopb-test-headers",
         "//thirdparty/googletest:googletest.static",
     ],
 )

[pjreiniger]

I tested @Gold856 patch locally and he is correct

[ThadHouse]

/format

[ThadHouse]

/format

[PeterJohnson]

How is this used?

[ThadHouse]

This was needed because wpiutil only had protobufs in the test, and the google protobufs were erroring for some reason.

I’ll be removing all of this Infra in a future pr. This pr was just already so big it wasn’t worth it.