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cmake_minimum_required(VERSION 3.18)
project(ZXingPython)
# check if we are called from the top-level ZXing project
get_directory_property(hasParent PARENT_DIRECTORY)
if (NOT hasParent)
set(CMAKE_CXX_STANDARD 20) # required here for the module itself
option (BUILD_SHARED_LIBS "Link python module to shared lib" OFF)
option (ZXING_READERS "Build with reader support (decoders)" ON)
set (ZXING_WRITERS "NEW" CACHE STRING "Build with old and/or new writer (encoder) backend (OFF/ON/OLD/NEW)")
set (ZXING_DEPENDENCIES "AUTO" CACHE STRING "Fetch from github or use locally installed (AUTO/GITHUB/LOCAL)")
option (ZXING_EXPERIMENTAL_API "Build with experimental API" ON)
set(CORE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/core)
if(IS_SYMLINK ${CORE_PATH})
# This is needed because otherwise GCC resolves the symlink which causes paths to randomly
# be prefixed by /core or by /wrappers/python/core depending on include order.
set(CORE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/../../core)
endif()
if(EXISTS ${CORE_PATH})
add_subdirectory(${CORE_PATH} ZXing EXCLUDE_FROM_ALL)
include(${CMAKE_CURRENT_SOURCE_DIR}/zxing.cmake)
else()
message(FATAL_ERROR "Unable to locate zxing source code")
endif()
endif()
find_package(Python 3.10 COMPONENTS Interpreter Development.Module REQUIRED) # see https://github.com/pybind/pybind11/issues/4785
#set(PYBIND11_FINDPYTHON ON) # see https://github.com/pybind/pybind11/issues/4785
zxing_add_package(pybind11 pybind11 https://github.com/pybind/pybind11.git v3.0.1)
# build the python module
pybind11_add_module(zxingcpp zxing.cpp)
target_link_libraries(zxingcpp PRIVATE ZXing::ZXing)
if (ZXING_READERS AND ZXING_WRITERS)
add_test(NAME PythonTest COMMAND ${Python_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/test.py -v)
set_property(TEST PythonTest PROPERTY ENVIRONMENT PYTHONPATH=$<TARGET_FILE_DIR:zxingcpp>)
endif()
if (NOT DEFINED ZXING_PYTHON_INSTALL_BINDIR)
set(ZXING_PYTHON_INSTALL_BINDIR "${CMAKE_INSTALL_BINDIR}")
endif()
if (NOT DEFINED ZXING_PYTHON_INSTALL_LIBDIR)
set(ZXING_PYTHON_INSTALL_LIBDIR "${CMAKE_INSTALL_LIBDIR}")
endif()
install(TARGETS zxingcpp
COMPONENT python
RUNTIME DESTINATION "${ZXING_PYTHON_INSTALL_BINDIR}"
LIBRARY DESTINATION "${ZXING_PYTHON_INSTALL_LIBDIR}"
ARCHIVE DESTINATION "${ZXING_PYTHON_INSTALL_LIBDIR}")
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