[GitHub] [nifi-minifi-cpp] lordgamez commented on a change in pull request #1162: MINIFICPP-1442 Uplift sol2 to latest release to support Lua version 5.4

[GitBox <gi...@apache.org>]

lordgamez commented on a change in pull request #1162:
URL: https://github.com/apache/nifi-minifi-cpp/pull/1162#discussion_r702653774



##########
File path: cmake/Sol2.cmake
##########
@@ -0,0 +1,43 @@
+# 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.
+
+# Using file(DOWNLOAD) instead of FetchContent due to this issue in cmake versions older than 3.18 https://gitlab.kitware.com/cmake/cmake/-/issues/20526
+
+set(SOL2_INCLUDE_DIR "${CMAKE_BINARY_DIR}/_deps/sol2/" CACHE STRING "" FORCE)
+if(NOT EXISTS "${SOL2_INCLUDE_DIR}/sol.hpp")
+    file(DOWNLOAD "https://github.com/ThePhD/sol2/releases/download/v3.2.2/sol.hpp" "${SOL2_INCLUDE_DIR}/sol/sol.hpp"

Review comment:
       Yes, in case it does not exist `file(DOWNLOAD` recursively creates the directory path.




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