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# Copyright 2014-2015 Open Source Robotics Foundation, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# copied from ament_cmake_python/ament_cmake_python-extras.cmake
# register environment hook for PYTHONPATH once
macro(_ament_cmake_python_register_environment_hook)
if(NOT DEFINED _AMENT_CMAKE_PYTHON_ENVIRONMENT_HOOK_REGISTERED)
set(_AMENT_CMAKE_PYTHON_ENVIRONMENT_HOOK_REGISTERED TRUE)
_ament_cmake_python_get_python_install_dir()
find_package(ament_cmake_core QUIET REQUIRED)
# backup variable
set(_PYTHON_INSTALL_DIR "${PYTHON_INSTALL_DIR}")
# use native separators in environment hook to match what pure Python packages do
file(TO_NATIVE_PATH "${PYTHON_INSTALL_DIR}" PYTHON_INSTALL_DIR)
# register information for .dsv generation
set(
AMENT_CMAKE_ENVIRONMENT_HOOKS_DESC_pythonpath
"prepend-non-duplicate;PYTHONPATH;${PYTHON_INSTALL_DIR}")
ament_environment_hooks(
"${ament_cmake_package_templates_ENVIRONMENT_HOOK_PYTHONPATH}")
# restore variable
set(PYTHON_INSTALL_DIR "${_PYTHON_INSTALL_DIR}")
endif()
endmacro()
macro(_ament_cmake_python_get_python_install_dir)
if(NOT DEFINED PYTHON_INSTALL_DIR)
# avoid storing backslash in cached variable since CMake will interpret it as escape character
# This auto detection code uses the same logic as get_python_install_path() in colcon-core
set(_python_code
"\
import os
import sysconfig
kwargs = {'vars': {'base': '${CMAKE_INSTALL_PREFIX}'}}
if sysconfig.get_config_var('base') != os.path.normpath('${CMAKE_INSTALL_PREFIX}'):
schemes = sysconfig.get_scheme_names()
if 'deb_system' in schemes or 'osx_framework_library' in schemes:
kwargs['scheme'] = 'posix_prefix'
elif 'rpm_prefix' in schemes:
kwargs['scheme'] = 'rpm_prefix'
print(os.path.relpath(sysconfig.get_path('purelib', **kwargs), start='${CMAKE_INSTALL_PREFIX}').replace(os.sep, '/'))"
)
get_executable_path(_python_interpreter Python3::Interpreter CONFIGURE)
execute_process(
COMMAND
"${_python_interpreter}"
"-c"
"${_python_code}"
OUTPUT_VARIABLE _output
RESULT_VARIABLE _result
OUTPUT_STRIP_TRAILING_WHITESPACE
)
if(NOT _result EQUAL 0)
message(FATAL_ERROR
"execute_process(${_python_interpreter} -c '${_python_code}') returned "
"error code ${_result}")
endif()
set(PYTHON_INSTALL_DIR
"${_output}"
CACHE INTERNAL
"The directory for Python library installation. This needs to be in PYTHONPATH when 'setup.py install' is called.")
endif()
endmacro()
include("${ament_cmake_python_DIR}/ament_python_install_module.cmake")
include("${ament_cmake_python_DIR}/ament_python_install_package.cmake")
include("${ament_cmake_python_DIR}/ament_get_python_install_dir.cmake")
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