CMake: Adding alot of code to handle .ddl's on windows using windeployqt

gui/cmake/QtUtils.cmake

@@ -0,0 +1,110 @@
+
+set(_QT_INSTALL_CONFIG_TEMPLATE ${CMAKE_CURRENT_LIST_DIR}/cmake_install_qt.cmake.in)
+set(_QT_INSTALL_CONFIG ${CMAKE_CURRENT_BINARY_DIR}/cmake_install_qt.cmake)
+
+# ------------------------------------------------------------------------------
+#  Code Taken and modified from:
+#  https://github.com/equalsraf/neovim-qt/blob/master/cmake/WinDeployQt.cmake
+#
+#  Wrapper to call windeployqt on Windows
+# ------------------------------------------------------------------------------
+function(qt5_win_deploy)
+	cmake_parse_arguments(_deploy
+		"COMPILER_RUNTIME;FORCE;SKIP_TRANSLATIONS"
+		"TARGET;INSTALL_COMPONENT"
+		"MODULES;EXCLUDE_MODULES"
+		${ARGN}
+		)
+
+	if(NOT _deploy_TARGET)
+		message(FATAL_ERROR "A TARGET must be specified")
+	endif()
+	if(CMAKE_BUILD_TYPE STREQUAL "Debug")
+		list(APPEND _ARGS --debug)
+	elseif(CMAKE_BUILD_TYPE STREQUAL "RelWithDebInfo")
+		list(APPEND _ARGS --release-with-debug-info)
+	elseif(CMAKE_BUILD_TYPE STREQUAL "Release")
+		list(APPEND _ARGS --release)
+	endif()
+	if(_deploy_COMPILER_RUNTIME)
+		list(APPEND _ARGS --compiler-runtime)
+	endif()
+	if(_deploy_FORCE)
+		list(APPEND _ARGS --force)
+	endif()
+	if(_deploy_SKIP_TRANSLATIONS)
+		list(APPEND _ARGS --no-translations)
+	endif()
+
+	foreach(mod ${_deploy_MODULES})
+		string(TOLOWER ${mod} mod)
+		string(REPLACE "qt5::" "" mod ${mod})
+		list(APPEND _ARGS "--${mod}")
+	endforeach()
+	foreach(mod ${_deploy_EXCLUDE_MODULES})
+		string(TOLOWER ${mod} mod)
+		string(REPLACE "qt5::" "" mod ${mod})
+		list(APPEND _ARGS "--no-${mod}")
+	endforeach()
+
+	find_program(_deploy_PROGRAM windeployqt PATHS $ENV{QTDIR}/bin)
+	if(_deploy_PROGRAM)
+		message(STATUS "Found ${_deploy_PROGRAM}")
+	else()
+		message(FATAL_ERROR "Unable to find windeployqt")
+	endif()
+
+	if(COMPILER_RUNTIME AND NOT $ENV{VVVV})
+		message(STATUS "not set, the VC++ redistributable installer will NOT be bundled")
+	endif()
+
+	set( _QT_INSTALL_CONFIG_DEPFILE "${CMAKE_CURRENT_BINARY_DIR}/qt_deps_\${CMAKE_INSTALL_CONFIG_NAME}.cmake" )
+	set( _QT_DEPFILE ${CMAKE_CURRENT_BINARY_DIR}/qt_deps_${CMAKE_BUILD_TYPE}.cmake )
+
+	add_custom_target(${_deploy_TARGET}_windeployqt ALL
+		COMMAND ${CMAKE_COMMAND} -E echo "$<TARGET_FILE_DIR:${_deploy_TARGET}>" > ${_QT_DEPFILE}
+		COMMAND ${_deploy_PROGRAM} --list relative ${_ARGS} $<TARGET_FILE:${_deploy_TARGET}> >> ${_QT_DEPFILE}
+		DEPENDS ${_deploy_TARGET}
+		COMMENT "Preparing Qt runtime dependencies")
+
+	configure_file(${_QT_INSTALL_CONFIG_TEMPLATE} ${_QT_INSTALL_CONFIG} @ONLY)
+
+	if (_deploy_INSTALL_COMPONENT)
+		set(_install_args "COMPONENT ${_deploy_INSTALL_COMPONENT}")
+	endif()
+
+	install(SCRIPT ${_QT_INSTALL_CONFIG} ${_install_args})
+endfunction()
+
+# ------------------------------------------------------------------------------
+#  Macro for compile, link and deploy qt apps.
+# ------------------------------------------------------------------------------
+macro(qt5_app)
+	cmake_parse_arguments(_args
+		"COMPILER_RUNTIME;FORCE;SKIP_TRANSLATIONS"
+		"TARGET;INSTALL_COMPONENT"
+		"MODULES"
+		${ARGN}
+	)
+
+	if(NOT _args_TARGET)
+		message(FATAL_ERROR "A TARGET must be specified")
+	endif()
+
+	if(NOT _args_MODULES)
+		message(FATAL_ERROR "Must define atleast one QT component")
+	endif()
+
+	find_package( Qt5 COMPONENTS ${_args_MODULES} REQUIRED)
+
+	# Link targets
+	list( TRANSFORM _args_MODULES PREPEND "Qt5::" OUTPUT_VARIABLE _qtargets)
+	target_link_libraries( ${_args_TARGET} ${_qtargets} )
+
+
+	if (WIN32)
+		# Windows needs alot of extra stuff to copy all dll's.
+		qt5_win_deploy(${ARGN})
+	endif()
+
+endmacro()

gui/cmake/cmake_install_qt.cmake.in

@@ -0,0 +1,23 @@
+
+# Custom script that installs Qt runtime files.
+
+if (EXISTS @_QT_INSTALL_CONFIG_DEPFILE@)
+	file(STRINGS @_QT_INSTALL_CONFIG_DEPFILE@ _lines)
+
+	# First line is the output path.
+	list(GET _lines 0 BASE_PATH)
+
+	# Rest of the lines are the files relative to the path.
+	list(SUBLIST _lines 1 -1 FILES)
+
+	foreach(file ${FILES})
+		get_filename_component(rel_path ${file} DIRECTORY BASE_DIR ${BASE_PATH})
+
+		set(install_path ${CMAKE_INSTALL_PREFIX}/@CMAKE_INSTALL_BINDIR@)
+		if (rel_path)
+			set(install_path "${install_path}/${rel_path}")
+		endif()
+
+		file(INSTALL ${BASE_PATH}/${file} DESTINATION ${install_path})
+	endforeach()
+endif()