[llvm] [clang-tidy][bazel][NFC] enable custom checks in bazel build (PR #160548)

[Congcong Cai via llvm-commits]

https://github.com/HerrCai0907 updated https://github.com/llvm/llvm-project/pull/160548

>From 8d40af68bd275b5a96d19be54caecb97077a8b4d Mon Sep 17 00:00:00 2001
From: Congcong Cai <congcongcai0907 at 163.com>
Date: Wed, 24 Sep 2025 23:50:38 +0800
Subject: [PATCH] [clang-tidy][bazel][NFC] enable custom checks in bazel build

---
 .../clang-tools-extra/clang-query/BUILD.bazel | 28 +++++++++++++++
 .../clang-tools-extra/clang-tidy/BUILD.bazel  | 35 +++++++++++++++++--
 2 files changed, 60 insertions(+), 3 deletions(-)
 create mode 100644 utils/bazel/llvm-project-overlay/clang-tools-extra/clang-query/BUILD.bazel

diff --git a/utils/bazel/llvm-project-overlay/clang-tools-extra/clang-query/BUILD.bazel b/utils/bazel/llvm-project-overlay/clang-tools-extra/clang-query/BUILD.bazel
new file mode 100644
index 0000000000000..05fcbf7beb99f
--- /dev/null
+++ b/utils/bazel/llvm-project-overlay/clang-tools-extra/clang-query/BUILD.bazel
@@ -0,0 +1,28 @@
+# This file is licensed under the Apache License v2.0 with LLVM Exceptions.
+# See https://llvm.org/LICENSE.txt for license information.
+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+
+load("@rules_cc//cc:defs.bzl", "cc_library")
+
+package(
+    default_visibility = ["//visibility:public"],
+    features = ["layering_check"],
+)
+
+licenses(["notice"])
+
+cc_library(
+    name = "lib",
+    srcs = glob(["*.cpp"]),
+    hdrs = glob(["*.h"]),
+    deps = [
+        "//clang:ast",
+        "//clang:ast_matchers",
+        "//clang:ast_matchers_dynamic",
+        "//clang:basic",
+        "//clang:frontend",
+        "//clang:serialization",
+        "//llvm:LineEditor",
+        "//llvm:Support",
+    ],
+)
diff --git a/utils/bazel/llvm-project-overlay/clang-tools-extra/clang-tidy/BUILD.bazel b/utils/bazel/llvm-project-overlay/clang-tools-extra/clang-tidy/BUILD.bazel
index e944270896c0d..8fdd29d2410a5 100644
--- a/utils/bazel/llvm-project-overlay/clang-tools-extra/clang-tidy/BUILD.bazel
+++ b/utils/bazel/llvm-project-overlay/clang-tools-extra/clang-tidy/BUILD.bazel
@@ -23,6 +23,11 @@ bool_flag(
     build_setting_default = True,
 )
 
+bool_flag(
+    name = "enable_custom_checks",
+    build_setting_default = True,
+)
+
 config_setting(
     name = "static_analyzer_enabled",
     flag_values = {
@@ -30,13 +35,25 @@ config_setting(
     },
 )
 
+config_setting(
+    name = "custom_checks_enabled",
+    flag_values = {
+        ":enable_custom_checks": "true",
+    },
+)
+
 expand_template(
     name = "config",
     out = "clang-tidy-config.h",
     substitutions =
-        {
-            "#cmakedefine01 CLANG_TIDY_ENABLE_QUERY_BASED_CUSTOM_CHECKS": "#define CLANG_TIDY_ENABLE_QUERY_BASED_CUSTOM_CHECKS 0",
-        } | select({
+        select({
+            ":custom_checks_enabled": {
+                "#cmakedefine01 CLANG_TIDY_ENABLE_QUERY_BASED_CUSTOM_CHECKS": "#define CLANG_TIDY_ENABLE_QUERY_BASED_CUSTOM_CHECKS 1",
+            },
+            "//conditions:default": {
+                "#cmakedefine01 CLANG_TIDY_ENABLE_QUERY_BASED_CUSTOM_CHECKS": "#define CLANG_TIDY_ENABLE_QUERY_BASED_CUSTOM_CHECKS 0",
+            },
+        }) | select({
             ":static_analyzer_enabled": {
                 "#cmakedefine01 CLANG_TIDY_ENABLE_STATIC_ANALYZER": "#define CLANG_TIDY_ENABLE_STATIC_ANALYZER 1",
             },
@@ -207,6 +224,15 @@ clang_tidy_library(
     ],
 )
 
+clang_tidy_library(
+    name = "custom",
+    deps = [
+        ":lib",
+        "//clang:ast_matchers_dynamic",
+        "//clang-tools-extra/clang-query:lib",
+    ],
+)
+
 clang_tidy_library(
     name = "concurrency",
     deps = [":lib"],
@@ -363,6 +389,9 @@ CHECKS = [
 ] + select({
     ":static_analyzer_enabled": [":mpi"],
     "//conditions:default": [],
+}) + select({
+    ":custom_checks_enabled": [":custom"],
+    "//conditions:default": [],
 })
 
 cc_library(