Go: introduce universal binaries on macOS

Author: redsun82

MODULE.bazel

@@ -13,7 +13,8 @@ local_path_override(
 
 # see https://registry.bazel.build/ for a list of available packages
 
-bazel_dep(name = "platforms", version = "0.0.8")
+bazel_dep(name = "apple_support", version = "1.15.1")
+bazel_dep(name = "platforms", version = "0.0.9")
 bazel_dep(name = "rules_go", version = "0.47.0")
 bazel_dep(name = "rules_pkg", version = "0.10.1")
 bazel_dep(name = "rules_nodejs", version = "6.0.3")

go/BUILD.bazel

@@ -1,6 +1,7 @@
 load("@rules_go//go:def.bzl", "go_library")
 
 # gazelle:prefix github.com/github/codeql-go/extractor
+# gazelle:map_kind go_binary codeql_go_binary //go:rules.bzl
 
 go_library(
     name = "extractor",

go/extractor/BUILD.bazel

@@ -0,0 +1,5 @@
+load("@rules_go//go:def.bzl", "go_binary")
+load("//misc/bazel:universal_binary.bzl", "wrap_as_universal_binary")
+
+def codeql_go_binary(**kwargs):
+    wrap_as_universal_binary(go_binary, **kwargs)

go/extractor/cli/go-autobuilder/BUILD.bazel

@@ -0,0 +1,24 @@
+load("@apple_support//rules:universal_binary.bzl", _universal_binary = "universal_binary")
+
+def wrap_as_universal_binary(rule, *, name, visibility = None, **kwargs):
+    internal_name = "internal/%s" % name
+    universal_name = "universal/%s" % name
+    rule(
+        name = internal_name,
+        visibility = ["//visibility:private"],
+        **kwargs
+    )
+    _universal_binary(
+        name = universal_name,
+        target_compatible_with = ["@platforms//os:macos"],
+        binary = internal_name,
+        visibility = ["//visibility:private"],
+    )
+    native.alias(
+        name = name,
+        actual = select({
+            "@platforms//os:macos": universal_name,
+            "//conditions:default": internal_name,
+        }),
+        visibility = visibility,
+    )