Description: Remove cmake downloads
 Make sure cmake is not downloading/vendoring anything
Forwarded: not-needed
Author: syzygial <syzygial.123@gmail.com>
Last-Update: 2025-05-30
---
diff --git a/CMakeLists.txt b/CMakeLists.txt
index b54f71a..066707c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -38,7 +38,6 @@ include(CMakePackageConfigHelpers)
 include(CheckCXXCompilerFlag)
 include(CMakeDependentOption)
 include(GNUInstallDirs)
-include(FetchContent)
 
 # # # Configuration
 # # Cached defines, strings, paths and options
diff --git a/cmake/Includes/Project.cmake b/cmake/Includes/Project.cmake
index e7c8d7a..07ff0d1 100644
--- a/cmake/Includes/Project.cmake
+++ b/cmake/Includes/Project.cmake
@@ -44,7 +44,6 @@ include(CMakeDependentOption)
 include(CMakePrintHelpers)
 include(GNUInstallDirs)
 include(FeatureSummary)
-include(FetchContent)
 include(CTest)
 # sol2
 include(CheckCompilerDiagnostic)
diff --git a/cmake/Packages/FindKaguyaBuild.cmake b/cmake/Packages/FindKaguyaBuild.cmake
index 8d0579f..2d3453b 100644
--- a/cmake/Packages/FindKaguyaBuild.cmake
+++ b/cmake/Packages/FindKaguyaBuild.cmake
@@ -21,7 +21,6 @@
 # IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 # CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-include(ExternalProject)
 include(FindPackageHandleStandardArgs)
 include(Common/Core)
 
@@ -37,29 +36,7 @@ set(kaguya_include_dirs "${kaguya_build_toplevel}/include")
 set(kaguya_sources kaguya/kaguya.hpp)
 prepend(kaguya_sources "${kaguya_build_toplevel}/include/" ${kaguya_sources})
 
-# # External project to get sources
-ExternalProject_Add(KAGUYA_BUILD_SOURCE
-	BUILD_IN_SOURCE TRUE
-	BUILD_ALWAYS FALSE
-	# # Use Git to get what we need
-	GIT_SHALLOW TRUE
-	GIT_SUBMODULES ""
-	GIT_REPOSITORY https://github.com/satoren/kaguya.git
-	GIT_TAG main
-	PREFIX ${kaguya_build_toplevel}
-	SOURCE_DIR ${kaguya_build_toplevel}
-	DOWNLOAD_DIR ${kaguya_build_toplevel}
-	TMP_DIR "${kaguya_build_toplevel}-tmp"
-	STAMP_DIR "${kaguya_build_toplevel}-stamp"
-	INSTALL_DIR "${kaguya_build_toplevel}/local"
-	CONFIGURE_COMMAND ""
-	BUILD_COMMAND ""
-	INSTALL_COMMAND ""
-	TEST_COMMAND ""
-	BUILD_BYPRODUCTS "${kaguya_sources}")
-
 add_library(${kaguya_lib} INTERFACE)
-add_dependencies(${kaguya_lib} KAGUYA_BUILD_SOURCE)
 target_include_directories(${kaguya_lib} INTERFACE ${kaguya_include_dirs})
 target_link_libraries(${kaguya_lib} INTERFACE Lua::Lua)
 if (NOT MSVC)
diff --git a/cmake/Packages/FindLuaBridgeBuild.cmake b/cmake/Packages/FindLuaBridgeBuild.cmake
index 1ee9165..77fc1be 100644
--- a/cmake/Packages/FindLuaBridgeBuild.cmake
+++ b/cmake/Packages/FindLuaBridgeBuild.cmake
@@ -20,7 +20,6 @@
 # IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 # CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-include(ExternalProject)
 include(FindPackageHandleStandardArgs)
 include(Common/Core)
 
@@ -36,28 +35,7 @@ set(luabridge_include_dirs "${luabridge_build_toplevel}/Source")
 set(luabridge_sources LuaBridge/LuaBridge.h)
 prepend(luabridge_sources "${luabridge_build_toplevel}/Source/" ${luabridge_sources})
 
-# # External project to get sources
-ExternalProject_Add(LUABRIDGE_BUILD_SOURCE
-	BUILD_IN_SOURCE TRUE
-	BUILD_ALWAYS FALSE
-	# # Use Git to get what we need
-	GIT_SHALLOW TRUE
-	GIT_SUBMODULES ""
-	GIT_REPOSITORY https://github.com/ThePhD/LuaBridge.git
-	PREFIX ${luabridge_build_toplevel}
-	SOURCE_DIR ${luabridge_build_toplevel}
-	DOWNLOAD_DIR ${luabridge_build_toplevel}
-	TMP_DIR "${luabridge_build_toplevel}-tmp"
-	STAMP_DIR "${luabridge_build_toplevel}-stamp"
-	INSTALL_DIR "${luabridge_build_toplevel}/local"
-	CONFIGURE_COMMAND ""
-	BUILD_COMMAND ""
-	INSTALL_COMMAND ""
-	TEST_COMMAND ""
-	BUILD_BYPRODUCTS "${luabridge_sources}")
-
 add_library(${luabridge_lib} INTERFACE)
-add_dependencies(${luabridge_lib} LUABRIDGE_BUILD_SOURCE)
 target_include_directories(${luabridge_lib} INTERFACE ${luabridge_include_dirs})
 target_link_libraries(${luabridge_lib} INTERFACE Lua::Lua)
 if (NOT MSVC)
diff --git a/cmake/Packages/FindLuaBuild/LuaJIT.cmake b/cmake/Packages/FindLuaBuild/LuaJIT.cmake
index a2ea2a6..592d44a 100644
--- a/cmake/Packages/FindLuaBuild/LuaJIT.cmake
+++ b/cmake/Packages/FindLuaBuild/LuaJIT.cmake
@@ -26,9 +26,6 @@ if(lua_jit_build_included)
 endif(lua_jit_build_included)
 set(lua_jit_build_included true)
 
-# import necessary standard modules
-include(ExternalProject)
-
 # MD5 hashes taken off of LuaJIT's website
 # must be updated whenever a new version appears
 set(LUA_JIT_MD5_2.1.0-beta3.tar.gz eae40bc29d06ee5e3078f9444fcea39b)
@@ -397,63 +394,6 @@ if (LUAJIT_BUILD_LOCAL_DIR)
 	add_custom_target(LUA_JIT-move
 		DEPENDS LUA_JIT-bat-build ${LUA_JIT_INSTALL_BYPRODUCTS}
 	)
-elseif (LUA_JIT_GIT_COMMIT OR LUA_JIT_PULL_LATEST)
-	if (LUA_JIT_PULL_LATEST)
-		MESSAGE(STATUS "Latest LuaJIT has been requested: pulling from git...")
-	elseif (LUA_JIT_GIT_COMMIT)
-		MESSAGE(STATUS "LuaJIT '${LUA_VERSION}' requested has broken static library builds: using git '${LUA_JIT_GIT_COMMIT}'...")
-		set(LUA_JIT_GIT_TAG GIT_TAG ${LUA_JIT_GIT_COMMIT})
-	endif()
-	ExternalProject_Add(LUA_JIT
-		BUILD_IN_SOURCE TRUE
-		BUILD_ALWAYS FALSE
-		PREFIX "${LUA_BUILD_TOPLEVEL}"
-		SOURCE_DIR "${LUA_BUILD_TOPLEVEL}"
-		DOWNLOAD_DIR "${LUA_BUILD_TOPLEVEL}"
-		TMP_DIR "${LUA_BUILD_TOPLEVEL}-tmp"
-		STAMP_DIR "${LUA_BUILD_TOPLEVEL}-stamp"
-		INSTALL_DIR "${LUA_BUILD_INSTALL_DIR}"
-		GIT_REPOSITORY https://github.com/LuaJIT/LuaJIT.git
-		GIT_REMOTE_NAME origin
-		${LUA_JIT_GIT_TAG}
-		GIT_SHALLOW TRUE
-		CONFIGURE_COMMAND ""
-		${LUA_JIT_BUILD_COMMAND}
-		INSTALL_COMMAND ""
-		TEST_COMMAND ""
-		BUILD_BYPRODUCTS ${LUA_JIT_BYPRODUCTS})
-else()
-	ExternalProject_Add(LUA_JIT
-		BUILD_IN_SOURCE TRUE
-		BUILD_ALWAYS TRUE
-		# LuaJIT does not offer a TLS/SSL port
-		TLS_VERIFY FALSE
-		PREFIX "${LUA_BUILD_TOPLEVEL}"
-		SOURCE_DIR "${LUA_BUILD_TOPLEVEL}"
-		DOWNLOAD_DIR "${LUA_BUILD_TOPLEVEL}"
-		TMP_DIR "${LUA_BUILD_TOPLEVEL}-tmp"
-		STAMP_DIR "${LUA_BUILD_TOPLEVEL}-stamp"
-		INSTALL_DIR "${LUA_BUILD_INSTALL_DIR}"
-		URL "${LUA_JIT_DOWNLOAD_URI}"
-		${LUA_JIT_DOWNLOAD_MD5_COMMAND}
-		${LUA_JIT_DOWNLOAD_SHA1_COMMAND}
-		CONFIGURE_COMMAND ""
-		${LUA_JIT_BUILD_COMMAND}
-		INSTALL_COMMAND ""
-		TEST_COMMAND ""
-		BUILD_BYPRODUCTS ${LUA_JIT_BYPRODUCTS})
-endif()
-
-if (NOT LUAJIT_BUILD_LOCAL_DIR)
-	ExternalProject_Add_Step(LUA_JIT move
-		ALWAYS TRUE
-		${LUA_JIT_POSTBUILD_COMMANDS}
-		WORKING_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}" 
-		COMMENT ${LUA_JIT_POSTBUILD_COMMENTS}
-		DEPENDEES build
-		DEPENDS ${LUA_JIT_BYPRODUCTS}
-		BYPRODUCTS ${LUA_JIT_INSTALL_BYPRODUCTS})
-	ExternalProject_Add_StepTargets(LUA_JIT move)
 endif()
 
 # # Lua Library
diff --git a/cmake/Packages/FindLuaBuild/LuaVanilla.cmake b/cmake/Packages/FindLuaBuild/LuaVanilla.cmake
index 2b30dde..98ceb8f 100644
--- a/cmake/Packages/FindLuaBuild/LuaVanilla.cmake
+++ b/cmake/Packages/FindLuaBuild/LuaVanilla.cmake
@@ -26,8 +26,6 @@ if(_lua_vanilla_build_included)
 endif(_lua_vanilla_build_included)
 set(_lua_vanilla_build_included true)
 
-# import necessary standard modules
-include(ExternalProject)
 # import other modules
 include(Common/Core)
 
@@ -170,36 +168,6 @@ if (LUA_LOCAL_DIR)
 	add_custom_target(LUA_VANILLA
 		DEPENDS "${LUA_VANILLA_LIB_SOURCES}" "${LUA_VANILLA_LUA_SOURCES}")
 	set(LUA_VANILLA_INCLUDE_DIRS ${LUA_VANILLA_INCLUDE_DIRS} "${LUA_VANILLA_SOURCE_DIR}/include")
-else()
-	include(FetchContent)
-	FetchContent_Declare(
-		lua-vanilla
-		URL ${LUA_VANILLA_DOWNLOAD_URL})
-	FetchContent_GetProperties(lua-vanilla)
-	if ( NOT lua-vanilla_POPULATED)
-		# Fetch the content using previously declared details
-		FetchContent_Populate(lua-vanilla)
-		# do not add_subdirectory / build: we are JUST using ti as a download step!
-	endif()
-	list(TRANSFORM LUA_VANILLA_LIB_SOURCES PREPEND "${lua-vanilla_SOURCE_DIR}/src/")
-	list(TRANSFORM LUA_VANILLA_LUA_SOURCES PREPEND "${lua-vanilla_SOURCE_DIR}/src/")
-	# make a quick lua.hpp for targets that don't have it
-	if (LUA_VANILLA_GENERATE_LUA_HPP)
-		set(LUA_VANILLA_LUA_HPP_CONTENT "// lua.hpp
-// Lua header files for C++
-// <<extern \"C\">> not supplied automatically because Lua also compiles as C++
-extern \"C\" {
-#include \"lua.h\"
-#include \"lualib.h\"
-#include \"lauxlib.h\"
-}
-")
-		set(LUA_VANILLA_SOURCE_LUA_HPP "${lua-vanilla_SOURCE_DIR}/include/lua.hpp")
-		file(CONFIGURE OUTPUT "${LUA_VANILLA_SOURCE_LUA_HPP}" CONTENT "${LUA_VANILLA_LUA_HPP_CONTENT}" @ONLY)
-		file(TO_NATIVE_PATH "${LUA_VANILLA_SOURCE_LUA_HPP}" LUA_VANILLA_SOURCE_LUA_HPP)
-	endif()
-
-	set(LUA_VANILLA_INCLUDE_DIRS ${lua-vanilla_SOURCE_DIR}/src)
 endif()
 
 # # Target names
diff --git a/cmake/Packages/FindLuwraBuild.cmake b/cmake/Packages/FindLuwraBuild.cmake
index 28a5a25..8363a1c 100644
--- a/cmake/Packages/FindLuwraBuild.cmake
+++ b/cmake/Packages/FindLuwraBuild.cmake
@@ -20,7 +20,6 @@
 # IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 # CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-include(ExternalProject)
 include(FindPackageHandleStandardArgs)
 include(Common/Core)
 
@@ -36,28 +35,7 @@ set(luwra_include_dirs "${luwra_build_toplevel}/lib")
 set(luwra_sources luwra.hpp)
 prepend(luwra_sources "${luwra_build_toplevel}/lib/" ${luwra_sources})
 
-# # External project to get sources
-ExternalProject_Add(LUWRA_BUILD_SOURCE
-	BUILD_IN_SOURCE TRUE
-	BUILD_ALWAYS FALSE
-	# # Use Git to get what we need
-	GIT_SHALLOW TRUE
-	#GIT_TAG e513907fc8c2d59ebd91cd5992eddf54f7e23e21
-	GIT_REPOSITORY https://github.com/vapourismo/luwra.git
-	PREFIX ${luwra_build_toplevel}
-	SOURCE_DIR ${luwra_build_toplevel}
-	DOWNLOAD_DIR ${luwra_build_toplevel}
-	TMP_DIR "${luwra_build_toplevel}-tmp"
-	STAMP_DIR "${luwra_build_toplevel}-stamp"
-	INSTALL_DIR "${luwra_build_toplevel}/local"
-	CONFIGURE_COMMAND ""
-	BUILD_COMMAND ""
-	INSTALL_COMMAND ""
-	TEST_COMMAND ""
-	BUILD_BYPRODUCTS "${luwra_sources}")
-
 add_library(${luwra_lib} INTERFACE)
-add_dependencies(${luwra_lib} LUWRA_BUILD_SOURCE)
 target_include_directories(${luwra_lib} INTERFACE ${luwra_include_dirs})
 target_link_libraries(${luwra_lib} INTERFACE Lua::Lua)
 if (NOT MSVC)
diff --git a/cmake/Packages/FindToLuappBuild.cmake b/cmake/Packages/FindToLuappBuild.cmake
index 652dbc0..e0b2544 100644
--- a/cmake/Packages/FindToLuappBuild.cmake
+++ b/cmake/Packages/FindToLuappBuild.cmake
@@ -21,7 +21,6 @@
 # CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 # # Standard CMake Libraries
-include(ExternalProject)
 include(FindPackageHandleStandardArgs)
 include(Common/Core)
 
@@ -37,29 +36,8 @@ set(toluapp_sources tolua_event.c tolua_event.h tolua_is.c tolua_map.c tolua_pus
 prepend(toluapp_sources "${toluapp_build_toplevel}/src/lib/" ${toluapp_sources})
 list(APPEND toluapp_sources "${toluapp_build_toplevel}/include/tolua++.h")
 
-# # External project to get sources
-ExternalProject_Add(TOLUAPP_BUILD_SOURCE
-	BUILD_IN_SOURCE TRUE
-	BUILD_ALWAYS FALSE
-	# # Use Git to get what we need
-	#GIT_SUBMODULES ""
-	GIT_SHALLOW TRUE
-	GIT_REPOSITORY https://github.com/ThePhD/toluapp
-	PREFIX ${toluapp_build_toplevel}
-	SOURCE_DIR ${toluapp_build_toplevel}
-	DOWNLOAD_DIR ${toluapp_build_toplevel}
-	TMP_DIR "${toluapp_build_toplevel}-tmp"
-	STAMP_DIR "${toluapp_build_toplevel}-stamp"
-	INSTALL_DIR "${toluapp_build_toplevel}/local"
-	CONFIGURE_COMMAND ""
-	BUILD_COMMAND ""
-	INSTALL_COMMAND ""
-	TEST_COMMAND ""
-	BUILD_BYPRODUCTS "${toluapp_sources}")
-
 set(toluapp_lib toluapp_lib_${toluapp_version})
 add_library(${toluapp_lib} SHARED ${toluapp_sources})
-add_dependencies(${toluapp_lib} TOLUAPP_BUILD_SOURCE)
 set_target_properties(${toluapp_lib} PROPERTIES
 	OUTPUT_NAME toluapp-${toluapp_version}
 	POSITION_INDEPENDENT_CODE TRUE)
diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index f8afa6e..80feaaf 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -23,12 +23,7 @@
 # # # # sol2 tests
 
 # # Dependencies
-FetchContent_Declare(
-	Catch2
-	GIT_REPOSITORY https://github.com/catchorg/Catch2.git
-	GIT_TAG devel
-)
-FetchContent_MakeAvailable(Catch2)
+find_package(Catch2)
 
 function(sol2_add_test_properties target-name)
 	target_link_libraries(${target-name}