chore(ci): run clang-tidy in parallel (#914)

Fixes #899.

.github/workflows/native-unix.yml

@@ -216,7 +216,8 @@ jobs:
         shell: bash -l {0}
         run: |
           mamba install -c conda-forge \
-            --file ci/conda_env_cpp.txt
+            --file ci/conda_env_cpp.txt \
+            --file ci/conda_env_cpp_lint.txt
 
       - name: clang-tidy
         shell: bash -l {0}

ci/conda_env_cpp_lint.txt

@@ -0,0 +1,19 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+
+clang=14
+clang-tools=14

ci/scripts/cpp_clang_tidy.sh

@@ -65,10 +65,11 @@ build_subproject() {
         -DCMAKE_INSTALL_LIBDIR=lib \
         -DCMAKE_INSTALL_PREFIX="${CMAKE_INSTALL_PREFIX}"
 
-    clang-tidy \
-        -p "${build_dir}/compile_commands.json" \
-        --fix \
-        --quiet \
+    run-clang-tidy \
+        -j $(nproc) \
+        -p "${build_dir}" \
+        -fix \
+        -quiet \
         $(jq -r ".[] | .file" "${build_dir}/compile_commands.json")
 
     set +x