[lua] Export cmake targets, rewrite CMakeLists and delete usage

ports/lua/CMakeLists.txt

@@ -53,9 +53,6 @@ ENDIF ()
 #DLL
 ADD_LIBRARY ( lua ${SRC_LIBLUA} )
 SET_PROPERTY (TARGET lua PROPERTY POSITION_INDEPENDENT_CODE ON)
-IF (COMPILE_AS_CPP)
-    SET_TARGET_PROPERTIES(lua PROPERTIES OUTPUT_NAME "lua-c++")
-ENDIF()
 
 IF (BUILD_SHARED_LIBS AND WIN32)
     TARGET_COMPILE_DEFINITIONS (lua PUBLIC -DLUA_BUILD_AS_DLL )
@@ -74,11 +71,42 @@ IF (UNIX)
 ENDIF ()
 
 INSTALL ( TARGETS lua
+    EXPORT unofficial-lua-config
     RUNTIME DESTINATION ${CMAKE_INSTALL_PREFIX}/bin
     LIBRARY DESTINATION ${CMAKE_INSTALL_PREFIX}/lib
     ARCHIVE DESTINATION ${CMAKE_INSTALL_PREFIX}/lib
 )
 
+install(EXPORT unofficial-lua-config DESTINATION share/unofficial-lua)
+
+IF (COMPILE_AS_CPP)
+    ADD_LIBRARY ( lua-cpp ${SRC_LIBLUA} )
+    SET_TARGET_PROPERTIES(lua-cpp PROPERTIES OUTPUT_NAME "lua-c++")
+    IF (BUILD_SHARED_LIBS AND WIN32)
+        TARGET_COMPILE_DEFINITIONS (lua-cpp PUBLIC -DLUA_BUILD_AS_DLL )
+    ENDIF ()
+    IF (UNIX)
+        IF (APPLE)
+            TARGET_COMPILE_DEFINITIONS (lua-cpp PUBLIC -DLUA_USE_DLOPEN)
+        ELSE ()
+            FIND_LIBRARY (LIB_DLOPEN NAMES dl)
+            IF (LIB_DLOPEN)
+                TARGET_COMPILE_DEFINITIONS (lua-cpp PUBLIC -DLUA_USE_DLOPEN)
+                TARGET_LINK_LIBRARIES (lua-cpp ${LIB_DLOPEN})
+            ENDIF ()
+        ENDIF ()
+    ENDIF ()
+
+    INSTALL ( TARGETS lua-cpp
+        EXPORT unofficial-lua-cpp-config
+        RUNTIME DESTINATION ${CMAKE_INSTALL_PREFIX}/bin
+        LIBRARY DESTINATION ${CMAKE_INSTALL_PREFIX}/lib
+        ARCHIVE DESTINATION ${CMAKE_INSTALL_PREFIX}/lib
+    )
+
+    install(EXPORT unofficial-lua-cpp-config DESTINATION share/unofficial-lua-cpp)
+ENDIF()
+
 IF (INSTALL_TOOLS)
     ADD_EXECUTABLE ( luac src/luac.c ${SRC_LIBLUA} ) # compiler uses non-exported APIs, so must include sources directly.
     ADD_EXECUTABLE ( luai src/lua.c )  # interpreter

ports/lua/portfile.cmake

@@ -13,43 +13,39 @@ vcpkg_extract_source_archive_ex(
 
 file(COPY ${CMAKE_CURRENT_LIST_DIR}/CMakeLists.txt DESTINATION ${SOURCE_PATH})
 
+# Used in cmake wrapper
+set(ENABLE_LUA_CPP 0)
+if ("cpp" IN_LIST FEATURES)
+    set(ENABLE_LUA_CPP 1)
+endif()
+
 vcpkg_check_features(OUT_FEATURE_OPTIONS FEATURE_OPTIONS
   FEATURES
+    cpp COMPILE_AS_CPP
     tools INSTALL_TOOLS
 )
 if(VCPKG_TARGET_IS_IOS AND "tools" IN_LIST FEATURES)
     message(FATAL_ERROR "lua[tools] is not supported for iOS platform build")
 endif()
 
-set(ENABLE_LUA_CPP 0)
 vcpkg_configure_cmake(
     SOURCE_PATH ${SOURCE_PATH}
     PREFER_NINJA
-    OPTIONS_RELEASE
-        ${FEATURE_OPTIONS}
     OPTIONS
-        -DCOMPILE_AS_CPP=OFF
+         ${FEATURE_OPTIONS}
     OPTIONS_DEBUG
         -DSKIP_INSTALL_HEADERS=ON
 )
 vcpkg_install_cmake()
 
-if("cpp" IN_LIST FEATURES) # lua[cpp] will create lua-c++, which uses C++ name mangling.
-    set(ENABLE_LUA_CPP 1)
-    vcpkg_configure_cmake(
-        SOURCE_PATH ${SOURCE_PATH}
-        PREFER_NINJA
-        OPTIONS
-            ${FEATURE_OPTIONS}
-            -DCOMPILE_AS_CPP=ON
-        OPTIONS_DEBUG
-            -DSKIP_INSTALL_HEADERS=ON
-    )
-    vcpkg_install_cmake()
+vcpkg_fixup_cmake_targets(CONFIG_PATH share/unofficial-lua TARGET_PATH share/unofficial-lua)
+
+if("cpp" IN_LIST FEATURES)
+    vcpkg_fixup_cmake_targets(CONFIG_PATH share/unofficial-lua-cpp TARGET_PATH share/unofficial-lua-cpp)
 endif()
 
 vcpkg_copy_pdbs()
-vcpkg_copy_tool_dependencies(${CURRENT_PACKAGES_DIR}/tools/lua)
+#vcpkg_copy_tool_dependencies(${CURRENT_PACKAGES_DIR}/tools/lua)
 
 if(VCPKG_LIBRARY_LINKAGE STREQUAL dynamic)
     if(VCPKG_TARGET_IS_WINDOWS)
@@ -59,7 +55,7 @@ if(VCPKG_LIBRARY_LINKAGE STREQUAL dynamic)
     endif()
 endif()
 
-# Handle post-build CMake instructions
+# Suitable for old version
 configure_file(${CMAKE_CURRENT_LIST_DIR}/vcpkg-cmake-wrapper.cmake.in  ${CURRENT_PACKAGES_DIR}/share/${PORT}/vcpkg-cmake-wrapper.cmake @ONLY)
 file(INSTALL ${CMAKE_CURRENT_LIST_DIR}/usage DESTINATION ${CURRENT_PACKAGES_DIR}/share/${PORT})
 

ports/lua/usage

@@ -1,9 +1,5 @@
 Use this package via the module FindLua that comes with CMake. To use in your CMakeLists.txt:
 
-    include(FindLua)
     find_package(Lua REQUIRED)
     target_link_libraries(main PRIVATE ${LUA_LIBRARIES})
     target_include_directories(main PRIVATE ${LUA_INCLUDE_DIR})
-
-For more information about the variables set by this module, please see:
-    https://cmake.org/cmake/help/latest/module/FindLua.html

ports/lua/vcpkg-cmake-wrapper.cmake.in

@@ -1,6 +1,23 @@
-_find_package(${ARGS})
+set(REQUIRES )
+foreach(ARG IN_LISTS ${ARGS})
+    if (ARG STREQUAL "REQUIRED")
+        set(REQUIRES "REQUIRED")
+    endif()
+endforeach()
+
+_find_package(unofficial-lua CONFIG ${REQUIRES})
 
 if (@ENABLE_LUA_CPP@)
-    find_library(lua_cpp NAMES lua-c++ liblua-c++ REQUIRED)
-    set(LUA_LIBRARIES ${LUA_LIBRARIES} ${lua_cpp})
-endif()
+    _find_package(unofficial-lua-cpp CONFIG ${REQUIRES})
+endif()
+
+get_filename_component(LUA_INCLUDE_DIR "${CMAKE_CURRENT_LIST_DIR}" PATH)
+get_filename_component(LUA_INCLUDE_DIR "${LUA_INCLUDE_DIR}" PATH)
+set(LUA_INCLUDE_DIR ${LUA_INCLUDE_DIR}/include)
+
+list(APPEND LUA_LIBRARIES lua)
+if (TARGET lua-cpp)
+    list(APPEND LUA_LIBRARIES lua-cpp)
+endif()
+
+set(LUA_FOUND 1)

ports/lua/vcpkg.json

@@ -1,7 +1,7 @@
 {
   "name": "lua",
   "version-string": "5.4.3",
-  "port-version": 1,
+  "port-version": 2,
   "description": "A powerful, fast, lightweight, embeddable scripting language",
   "homepage": "https://www.lua.org",
   "features": {