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# Copyright 2017 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.
#
# Check if the Python module `pytest` was found.
#
# :param var: the output variable name
# :type var: string
# :param QUIET: suppress the CMake warning if pytest is not found, if not set
# and pytest was not found a CMake warning is printed
# :type QUIET: option
# :param PYTHON_EXECUTABLE: Python executable used to check for pytest
# It defaults to the CMake executable target Python3::Interpreter.
# :type PYTHON_EXECUTABLE: string
#
# @public
#
function(ament_has_pytest var)
cmake_parse_arguments(ARG "QUIET" "PYTHON_EXECUTABLE" "" ${ARGN})
if(ARG_UNPARSED_ARGUMENTS)
message(FATAL_ERROR "ament_has_pytest() called with unused arguments: "
"${ARG_UNPARSED_ARGUMENTS}")
endif()
if(NOT ARG_PYTHON_EXECUTABLE)
set(ARG_PYTHON_EXECUTABLE Python3::Interpreter)
endif()
get_executable_path(python_interpreter "${ARG_PYTHON_EXECUTABLE}" CONFIGURE)
set(cmd "${python_interpreter}" "-m" "pytest" "--version")
execute_process(
COMMAND ${cmd}
RESULT_VARIABLE res
OUTPUT_VARIABLE output
ERROR_VARIABLE error)
if(res EQUAL 0)
set(${var} TRUE PARENT_SCOPE)
else()
if(NOT ARG_QUIET)
string(REPLACE ";" " " cmd_str "${cmd}")
message(WARNING
"Failed to find Python module `pytest`: "
"'${cmd_str}' returned error code ${res}")
endif()
set(${var} FALSE PARENT_SCOPE)
endif()
endfunction()
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