Add CMake integration

cmake_minimum_required(VERSION 3.14)

project(

  genopts

  VERSION 0.1.0

  LANGUAGES NONE

)

message(STATUS "[genopts] hi!")

find_package(Python3 3.8 REQUIRED COMPONENTS Interpreter)

set(GENOPTS_VIRTUALENV ${CMAKE_CURRENT_BINARY_DIR}/venv)

add_custom_command(

  OUTPUT ${GENOPTS_VIRTUALENV}

  COMMENT "Creating virtualenv for genopts at ${GENOPTS_VIRTUALENV}"

  COMMAND Python3::Interpreter -m venv "${GENOPTS_VIRTUALENV}"

  COMMAND ${GENOPTS_VIRTUALENV}/bin/pip install --upgrade pip -q

  COMMAND ${GENOPTS_VIRTUALENV}/bin/pip install -r

          ${CMAKE_CURRENT_LIST_DIR}/requirements.txt --upgrade -q

  COMMAND ${GENOPTS_VIRTUALENV}/bin/pip install -e ${CMAKE_CURRENT_SOURCE_DIR}

)

# ensure that the virtual environment is created by the build process

if(NOT TARGET genopts_virtualenv)

  add_custom_target(

    genopts_virtualenv ALL

    DEPENDS ${GENOPTS_VIRTUALENV}

    DEPENDS ${CMAKE_CURRENT_LIST_DIR}/requirements.txt

  )

endif()

add_executable(Genopts::Script IMPORTED GLOBAL)

set(GENOPTS_SCRIPT "/home/amiranda/var/projects/genopts/genopts/genopts.py")

set_target_properties(

  Genopts::Script PROPERTIES IMPORTED_LOCATION ${GENOPTS_SCRIPT}

)

add_executable(Genopts::Python3_Interpreter IMPORTED GLOBAL)

set_target_properties(

  Genopts::Python3_Interpreter PROPERTIES IMPORTED_LOCATION

                                          ${GENOPTS_VIRTUALENV}/bin/python3

)