googleapis.modules.patch

diff --git a/BUILD.bazel b/BUILD.bazel
index 026553f5c7..f3c6b6925c 100644
--- a/BUILD.bazel
+++ b/BUILD.bazel
@@ -1,11 +1,13 @@
+package(default_visibility = ["//visibility:public"])
+
+licenses(["notice"])  # Apache 2.0
+
 genrule(
-    name = "build_gen",
-    srcs = glob(
-        ["run_build_gen.sh"],
-        allow_empty = True,
-    ),
-    outs = ["build_gen.sh"],
-    cmd = """
+  name = "build_gen",
+  outs = ["build_gen.sh"],
+  executable = True,
+  srcs = glob(["run_build_gen.sh"], allow_empty=True),
+  cmd = """
     if test -z \"$(SRCS)\"; then
       cat <<EOD > $@
 #!/bin/sh
@@ -17,5 +19,17 @@ EOD
       cp $(SRCS) $@
     fi
   """,
-    executable = True,
 )
+
+# This build file overlays on top of the BUILD files for the googleapis repo,
+# and it adds a target that lets us include their header files using
+# angle-brackets, thus treating their headers as system includes. This allows
+# us to dial-up the warnings in our own code, without seeing compiler warnings
+# from their headers, which we do not own.
+cc_library(
+    name = "googleapis_system_includes",
+    includes = [
+        ".",
+    ],
+)
+
diff --git a/MODULE.bazel b/MODULE.bazel
new file mode 100644
index 000000000..169133e43
--- /dev/null
+++ b/MODULE.bazel
@@ -0,0 +1,14 @@
+module(
+    name = "googleapis",
+    version = "0.0.0-20240326-1c8d509c5",
+    repo_name = "com_google_googleapis",
+)
+
+bazel_dep(name = "grpc", version = "1.63.1.bcr.1", repo_name = "com_github_grpc_grpc")
+bazel_dep(name = "protobuf", version = "21.7", repo_name = "com_google_protobuf")
+bazel_dep(name = "rules_proto", version = "5.3.0-21.7")
+
+switched_rules = use_extension("//:extensions.bzl", "switched_rules")
+
+switched_rules.use_languages()
+use_repo(switched_rules, "com_google_googleapis_imports")
diff --git a/WORKSPACE.bzlmod b/WORKSPACE.bzlmod
new file mode 100644
index 000000000..8cf3fe396
--- /dev/null
+++ b/WORKSPACE.bzlmod
@@ -0,0 +1,2 @@
+workspace(name = "com_google_googleapis")
+
diff --git a/extensions.bzl b/extensions.bzl
new file mode 100644
index 000000000..9aa161841
--- /dev/null
+++ b/extensions.bzl
@@ -0,0 +1,59 @@
+load(":repository_rules.bzl", "switched_rules_by_language")
+
+_use_languages_tag = tag_class(
+    attrs = {
+        "cc": attr.bool(default = False),
+        "csharp": attr.bool(default = False),
+        "gapic": attr.bool(default = False),
+        "go": attr.bool(default = False),
+        "go_test": attr.bool(default = False),
+        "grpc": attr.bool(default = False),
+        "java": attr.bool(default = False),
+        "nodejs": attr.bool(default = False),
+        "php": attr.bool(default = False),
+        "python": attr.bool(default = False),
+        "ruby": attr.bool(default = False),
+    },
+)
+
+def _switched_rules_impl(ctx):
+    attrs = {}
+    for module in ctx.modules:
+        if not module.is_root:
+            continue
+
+        is_tag_set = False
+        set_tag_name = ""
+
+        for t in module.tags.use_languages:
+            if is_tag_set:
+                fail("Multiple use_language tags are set in the root module: '{}' and '{}'. Only one is allowed.".format(set_tag_name, module.name))
+
+            is_tag_set = True
+            set_tag_name = module.name
+
+            attrs = {
+                "cc": t.cc,
+                "csharp": t.csharp,
+                "gapic": t.gapic,
+                "go": t.go,
+                "go_test": t.go_test,
+                "grpc": t.grpc,
+                "java": t.java,
+                "nodejs": t.nodejs,
+                "php": t.php,
+                "python": t.python,
+                "ruby": t.ruby,
+            }
+
+    switched_rules_by_language(
+        name = "com_google_googleapis_imports",
+        **attrs
+    )
+
+switched_rules = module_extension(
+    implementation = _switched_rules_impl,
+    tag_classes = {
+        "use_languages": _use_languages_tag,
+    },
+)