Build lcurl and lzip in-tree, add INSTALL target including dependencies

Author: zao

.gitmodules

@@ -1,3 +1,6 @@
 [submodule "vcpkg"]
 	path = vcpkg
 	url = https://github.com/microsoft/vcpkg
+[submodule "libs/Lua-cURLv3"]
+	path = libs/Lua-cURLv3
+	url = https://github.com/Lua-cURL/Lua-cURLv3.git

CMakeLists.txt

@@ -87,6 +87,7 @@ target_include_directories(SimpleGraphic
 )
 
 find_package(unofficial-angle CONFIG REQUIRED)
+find_package(CURL CONFIG REQUIRED)
 find_package(fmt CONFIG REQUIRED)
 find_package(glfw3 CONFIG REQUIRED)
 find_package(LuaJit REQUIRED)
@@ -135,4 +136,54 @@ target_link_libraries(SimpleGraphic
     re2::re2
     Threads::Threads
     ZLIB::ZLIB
-)
+)
+
+install(FILES $<TARGET_RUNTIME_DLLS:SimpleGraphic> DESTINATION ".")
+install(TARGETS SimpleGraphic RUNTIME DESTINATION ".")
+
+if (WIN32)
+    find_file(LUAJIT_DLL NAMES "lua51.dll" PATHS "${CMAKE_BINARY_DIR}" REQUIRED)
+    find_file(ZLIB_DLL NAMES "zlib1.dll" PATHS "${CMAKE_BINARY_DIR}" REQUIRED)
+    install(FILES ${LUAJIT_DLL} ${ZLIB_DLL} DESTINATION ".")
+endif ()
+
+
+# lcurl module
+
+set(LCURL_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/libs/Lua-cURLv3)
+file(GLOB LCURL_SOURCES ${LCURL_SOURCE_DIR}/src/**.c)
+add_library(lcurl SHARED ${LCURL_SOURCES})
+
+target_include_directories(lcurl
+    PRIVATE
+    ${LCURL_SOURCE_DIR}/src
+    ${LUAJIT_INCLUDE_DIR}
+)
+
+target_link_libraries(lcurl
+    PRIVATE
+    CURL::libcurl
+    ${LUAJIT_LIBRARIES}
+)
+
+install(TARGETS lcurl RUNTIME DESTINATION ".")
+install(FILES $<TARGET_RUNTIME_DLLS:lcurl> DESTINATION ".")
+
+
+# lzip module
+
+add_library(lzip SHARED libs/LZip/lzip.cpp)
+
+target_include_directories(lzip
+    PRIVATE
+    ${LUAJIT_INCLUDE_DIR}
+)
+
+target_link_libraries(lzip
+    PRIVATE
+    ${LUAJIT_LIBRARIES}
+    ZLIB::ZLIB
+)
+
+install(TARGETS lzip RUNTIME DESTINATION ".")
+install(FILES $<TARGET_RUNTIME_DLLS:lzip> DESTINATION ".")

libs/LZip/CMakeLists.txt

@@ -0,0 +1,11 @@
+cmake_minimum_required(VERSION 3.18)
+project(lzip CXX)
+list(APPEND CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR}/cmake)
+
+find_package(ZLIB REQUIRED)
+
+find_package(LuaJIT REQUIRED)
+
+add_library(lzip SHARED lzip.cpp)
+target_include_directories(lzip PRIVATE ${LUA_INCLUDE_DIR})
+target_link_libraries(lzip PRIVATE ZLIB::ZLIB ${LUA_LIBRARY})

libs/LZip/cmake/FindLuaJIT.cmake

@@ -0,0 +1,62 @@
+# Locate LuaJIT library
+# This module defines
+#  LUAJIT_FOUND, if false, do not try to link to Lua
+#  LUA_INCLUDE_DIR, where to find lua.h
+#  LUA_VERSION_STRING, the version of Lua found (since CMake 2.8.8)
+#
+# This module is similar to FindLua51.cmake except that it finds LuaJit instead.
+
+FIND_PATH(LUA_INCLUDE_DIR luajit.h
+	HINTS
+	$ENV{LUA_DIR}
+	PATH_SUFFIXES include/luajit-2.1 include/luajit-2.0 include/luajit-5_1-2.1 include/luajit-5_1-2.0 include luajit
+	PATHS
+	~/Library/Frameworks
+	/Library/Frameworks
+	/sw # Fink
+	/opt/local # DarwinPorts
+	/opt/csw # Blastwave
+	/opt
+)
+
+# Test if running on vcpkg toolchain
+if(DEFINED VCPKG_TARGET_TRIPLET AND DEFINED VCPKG_APPLOCAL_DEPS)
+	# On vcpkg luajit is 'lua51' and normal lua is 'lua'
+	FIND_LIBRARY(LUA_LIBRARY
+		NAMES lua51
+		HINTS
+		$ENV{LUA_DIR}
+		PATH_SUFFIXES lib
+	)
+else()
+	FIND_LIBRARY(LUA_LIBRARY
+		NAMES luajit-5.1
+		HINTS
+		$ENV{LUA_DIR}
+		PATH_SUFFIXES lib64 lib
+		PATHS
+		~/Library/Frameworks
+		/Library/Frameworks
+		/sw
+		/opt/local
+		/opt/csw
+		/opt
+	)
+endif()
+
+
+IF(LUA_INCLUDE_DIR AND EXISTS "${LUA_INCLUDE_DIR}/luajit.h")
+	FILE(STRINGS "${LUA_INCLUDE_DIR}/luajit.h" lua_version_str REGEX "^#define[ \t]+LUA_RELEASE[ \t]+\"LuaJIT .+\"")
+
+	STRING(REGEX REPLACE "^#define[ \t]+LUA_RELEASE[ \t]+\"LuaJIT ([^\"]+)\".*" "\\1" LUA_VERSION_STRING "${lua_version_str}")
+	UNSET(lua_version_str)
+ENDIF()
+
+INCLUDE(FindPackageHandleStandardArgs)
+# handle the QUIETLY and REQUIRED arguments and set LUAJIT_FOUND to TRUE if
+# all listed variables are TRUE
+FIND_PACKAGE_HANDLE_STANDARD_ARGS(LuaJit
+	REQUIRED_VARS LUA_LIBRARY LUA_INCLUDE_DIR
+	VERSION_VAR LUA_VERSION_STRING)
+
+MARK_AS_ADVANCED(LUA_INCLUDE_DIR LUA_LIBRARY LUA_MATH_LIBRARY)