我想在我的项目中使用cmake中的部分构建 - 让cmake为我的python代码设置virtualenv。
通常这样做还是我应该假设我的python环境将成为一个全局环境?
答案 0 :(得分:4)
链接的要点
cmake_minimum_required(VERSION 3.6)
project(CmakeVirtualenv)
enable_testing()
# Find Python and Virtualenv. We don't actually use the output of the
# find_package, but it'll give nicer errors.
find_package(PythonInterp 2.7 REQUIRED)
find_program(VIRTUALENV virtualenv)
if(NOT VIRTUALENV)
message(FATAL_ERROR "Could not find `virtualenv` in PATH")
endif()
set(VIRTUALENV ${VIRTUALENV} -p python2.7)
# Generate the virtualenv and ensure it's up to date.
add_custom_command(
OUTPUT venv
COMMAND ${VIRTUALENV} venv
)
add_custom_command(
OUTPUT venv.stamp
DEPENDS venv requirements.txt
COMMAND ${CMAKE_COMMAND} -E copy ${CMAKE_CURRENT_SOURCE_DIR}/requirements.txt requirements.txt
COMMAND ./venv/bin/pip install -r requirements.txt --upgrade
)
# Build command line to run py.test.
set(PYTEST
${CMAKE_CURRENT_BINARY_DIR}/venv/bin/python2
${CMAKE_CURRENT_BINARY_DIR}/venv/bin/py.test
)
add_custom_target(Tests ALL
DEPENDS venv.stamp
SOURCES requirements.txt
)
add_test(NAME run_tests
COMMAND ${PYTEST} ${CMAKE_CURRENT_SOURCE_DIR}/test_sample.py
)
请注意,如果使用${CMAKE_CURRENT_BINARY_PATH/venv}
覆盖当前工作目录,则可能需要使用WORKING_DIRECTORY
或类似内容。