[luafilesystem] Add cmake files for find_package

Addresses microsoft#38340 for luafilesystem

ports/luafilesystem/CMakeLists.txt

@@ -1,17 +1,43 @@
-cmake_minimum_required(VERSION 3.0)
-project(luafilesystem)
-
-find_path(LUA_INCLUDE_DIR lua.h PATH_SUFFIXES lua)
-find_library(LUA_LIBRARY lua)
-set(LFS_INCLUDES ${LUA_INCLUDE_DIR})
-set(LFS_LIBRARIES ${LUA_LIBRARY})
-
-add_library( lfs src/lfs.h src/lfs.c src/lfs.def)
-
-target_include_directories(lfs PRIVATE ${LFS_INCLUDES})
-target_link_libraries(lfs PRIVATE ${LFS_LIBRARIES})
-
-install(TARGETS lfs
-    RUNTIME DESTINATION bin
-    LIBRARY DESTINATION lib
-    ARCHIVE DESTINATION lib)
+cmake_minimum_required(VERSION 3.11)
+project(luafilesystem)
+
+find_path(LUA_INCLUDE_DIR lua.h PATH_SUFFIXES lua)
+find_library(LUA_LIBRARY lua)
+set(LFS_INCLUDES ${LUA_INCLUDE_DIR})
+set(LFS_LIBRARIES ${LUA_LIBRARY})
+
+add_library(lfs src/lfs.h src/lfs.c src/lfs.def)
+
+target_include_directories(lfs PRIVATE ${LFS_INCLUDES})
+target_link_libraries(lfs PRIVATE ${LFS_LIBRARIES})
+
+install(TARGETS lfs
+    EXPORT "unofficial-lfs-targets"
+    RUNTIME DESTINATION bin
+    LIBRARY DESTINATION lib
+    ARCHIVE DESTINATION lib)
+
+include(CMakePackageConfigHelpers)
+
+configure_package_config_file(
+  "${CMAKE_CURRENT_SOURCE_DIR}/unofficial-${PROJECT_NAME}-config.cmake.in"
+  "${CMAKE_CURRENT_BINARY_DIR}/unofficial-${PROJECT_NAME}-config.cmake"
+  INSTALL_DESTINATION "share/${PROJECT_NAME}"
+)
+
+set(VERSION_FILE_PATH "${CMAKE_CURRENT_BINARY_DIR}/unofficial-${PROJECT_NAME}-config-version.cmake")
+write_basic_package_version_file(
+  "${VERSION_FILE_PATH}"
+  VERSION       "${LFS_VERSION}"
+  COMPATIBILITY SameMajorVersion
+)
+
+install(
+  FILES "${CMAKE_CURRENT_BINARY_DIR}/unofficial-${PROJECT_NAME}-config.cmake"
+  DESTINATION "share/${PROJECT_NAME}"
+)
+
+install(
+  EXPORT      "unofficial-lfs-targets"
+  NAMESPACE   "unofficial::${PROJECT_NAME}::"
+  DESTINATION "share/${PROJECT_NAME}")

ports/luafilesystem/portfile.cmake

@@ -11,13 +11,22 @@ vcpkg_from_github(
 )
 
 file(COPY "${CMAKE_CURRENT_LIST_DIR}/CMakeLists.txt" DESTINATION "${SOURCE_PATH}")
+file(COPY "${CMAKE_CURRENT_LIST_DIR}/unofficial-luafilesystem-config.cmake.in" DESTINATION "${SOURCE_PATH}")
 
 vcpkg_cmake_configure(
     SOURCE_PATH "${SOURCE_PATH}"
+    OPTIONS
+        -DLFS_VERSION="${VERSION}"
 )
 
 vcpkg_cmake_install()
 vcpkg_copy_pdbs()
+vcpkg_cmake_config_fixup()
+
+file(REMOVE_RECURSE
+    "${CURRENT_PACKAGES_DIR}/debug/include"
+    "${CURRENT_PACKAGES_DIR}/debug/share"
+)
 
 # Handle copyright
 file(INSTALL "${SOURCE_PATH}/LICENSE" DESTINATION "${CURRENT_PACKAGES_DIR}/share/${PORT}" RENAME copyright)

ports/luafilesystem/unofficial-luafilesystem-config.cmake.in

@@ -0,0 +1,5 @@
+@PACKAGE_INIT@
+
+include("${CMAKE_CURRENT_LIST_DIR}/unofficial-lfs-targets.cmake")
+
+check_required_components(luafilesystem)

ports/luafilesystem/vcpkg.json

@@ -1,7 +1,7 @@
 {
   "name": "luafilesystem",
   "version": "1.8.0",
-  "port-version": 5,
+  "port-version": 6,
   "description": "LuaFileSystem is a Lua library developed to complement the set of functions related to file systems offered by the standard Lua distribution.",
   "homepage": "https://github.com/keplerproject/luafilesystem",
   "supports": "!uwp",
@@ -10,6 +10,10 @@
     {
       "name": "vcpkg-cmake",
       "host": true
+    },
+    {
+      "name": "vcpkg-cmake-config",
+      "host": true
     }
   ]
 }