Add rust toolchains
Signed-off-by: Ravago Jones <ravagojones@gmail.com>
Change-Id: I5f36ff152b01bbb628dea45175294cf7f52bb15f
diff --git a/tools/rust/BUILD b/tools/rust/BUILD
new file mode 100644
index 0000000..a652530
--- /dev/null
+++ b/tools/rust/BUILD
@@ -0,0 +1,73 @@
+load("@rules_rust//rust:toolchain.bzl", "rust_stdlib_filegroup", "rust_toolchain")
+load("@bazel_skylib//rules:write_file.bzl", "write_file")
+
+# Similar to the one automatically generated by @rust, but with the correct
+# hardware platform configured.
+toolchain(
+ name = "rust-toolchain-roborio",
+ exec_compatible_with = [
+ "@platforms//os:linux",
+ "@platforms//cpu:x86_64",
+ ],
+ target_compatible_with = [
+ "@platforms//os:linux",
+ "//tools/platforms/hardware:roborio",
+ ],
+ toolchain = "@rust//:toolchain_for_arm-unknown-linux-gnueabi_impl",
+ toolchain_type = "@rules_rust//rust:toolchain",
+)
+
+# The remainder of this file exists to create a NOOP toolchain for Rust on
+# platforms that don't support Rust. We can probably get rid of this once
+# https://github.com/bazelbuild/bazel/issues/12897 is fixed.
+
+write_file(
+ name = "noop_error_exit",
+ out = "noop_error_exit.sh",
+ content = [
+ "#!/bin/bash",
+ "echo 'This should never be executed. Something went wrong.' >&2",
+ "echo 'This NOOP Rust toolchain should never be executed. Something went wrong.' >&2",
+ "echo 'Check that your target has `target_compatible_with` set to a platform that supports Rust.' >&2",
+ "exit 1",
+ ],
+ is_executable = True,
+)
+
+rust_stdlib_filegroup(
+ name = "empty_stdlib",
+ srcs = [":noop_error_exit"],
+)
+
+rust_toolchain(
+ name = "noop_rust_toolchain_impl",
+ binary_ext = "",
+ cargo = ":noop_error_exit",
+ clippy_driver = ":noop_error_exit",
+ default_edition = "2021",
+ dylib_ext = ".so",
+ exec_triple = "none",
+ os = "none",
+ rust_doc = ":noop_error_exit",
+ rust_lib = ":empty_stdlib",
+ rustc = ":noop_error_exit",
+ rustc_lib = ":noop_error_exit",
+ rustc_srcs = None,
+ rustfmt = ":noop_error_exit",
+ staticlib_ext = ".a",
+ stdlib_linkflags = [],
+ tags = ["manual"],
+ target_triple = "none",
+)
+
+toolchain(
+ name = "noop_rust_toolchain",
+ exec_compatible_with = [
+ "@platforms//os:linux",
+ ],
+ target_compatible_with = [
+ "//tools/platforms/rust:lacks_support",
+ ],
+ toolchain = ":noop_rust_toolchain_impl",
+ toolchain_type = "@rules_rust//rust:toolchain",
+)