Added an option to automatically copy the driver into the Qt plugin folder.

Author: blizzard4591

CMakeLists.txt

@@ -9,6 +9,7 @@ else()
 	SET(CMAKE_PREFIX_PATH "C:/Qtx86/5.9.2/msvc2015/lib/cmake/")
 endif()
 
+find_package(Qt5Core REQUIRED)
 find_package(Qt5Sql REQUIRED)
 
 if (NOT WIN32)
@@ -33,6 +34,7 @@ endif()
 
 option(QSQLCIPHER_STATIC "Build plugin as a static library" OFF)
 option(QSQLCIPHER_BUILD_TESTS "Build the test binary" ON)
+option(QSQLCIPHER_INSTALL_INTO_QT_PLUGIN_DIRECTORY "Find the Qt plugin directory and install the driver there" OFF)
 set(QSQLCIPHER_COPYTO_DIR "" CACHE PATH "If set, the build artifact of the library will be copied there")
 
 set(CMAKE_CXX_STANDARD 14)
@@ -42,6 +44,19 @@ if(CMAKE_COMPILER_IS_GNUCC)
 	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++14")
 endif()
 
+if(QSQLCIPHER_INSTALL_INTO_QT_PLUGIN_DIRECTORY)
+	string(REPLACE "\\" "/" Qt5Core_DIR "${Qt5Core_DIR}")
+	if ("${Qt5Core_DIR}" STREQUAL "")
+		message(SEND_ERROR "Qt5Core_DIR is not set and can not be used to derive the location of the Qt installation.")
+	elseif(NOT "${Qt5Core_DIR}" MATCHES "^(.*)/lib/cmake/Qt5Core")
+		message(SEND_ERROR "Qt5Core_DIR does not end in lib/cmake/Qt5Core, which is unexpected and therefore can not be used to derive the location of the Qt installation.")
+	else()
+		string(REGEX REPLACE "^(.*)/lib/cmake/Qt5Core" "\\1" QT5_BASE_DIR "${Qt5Core_DIR}")
+		set(QSQLCIPHER_PLUGIN_DIR "${QT5_BASE_DIR}/plugins")
+		message(STATUS "QSQLCIPHER_INSTALL_INTO_QT_PLUGIN_DIRECTORY is set, will install plugin to folder ${QSQLCIPHER_PLUGIN_DIR}/sqldrivers")
+	endif()
+endif()
+
 if(QSQLCIPHER_STATIC)
     set(LIBTYPE STATIC)
     add_definitions(-DQT_STATICPLUGIN)
@@ -112,6 +127,10 @@ if (NOT ("${QSQLCIPHER_COPYTO_DIR}" STREQUAL ""))
 	add_custom_command(TARGET qsqlcipher POST_BUILD COMMAND ${CMAKE_COMMAND} -E copy $<TARGET_FILE:qsqlcipher> ${QSQLCIPHER_COPYTO_DIR}/$<TARGET_FILE_NAME:qsqlcipher>)
 endif()
 
+if (NOT ("${QSQLCIPHER_PLUGIN_DIR}" STREQUAL ""))
+	add_custom_command(TARGET qsqlcipher POST_BUILD COMMAND ${CMAKE_COMMAND} -E copy $<TARGET_FILE:qsqlcipher> ${QSQLCIPHER_PLUGIN_DIR}/sqldrivers/$<TARGET_FILE_NAME:qsqlcipher>)
+endif()
+
 find_program(DPKG_PROGRAM dpkg DOC "dpkg program of Debian-based systems")
 if (NOT WIN32)
 	if (DPKG_PROGRAM)