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# run-and-redirect.cmake -- Runs a command and validates exit code
# Copyright (C) 2021 Nathan Moinvaziri
# Licensed under the Zlib license, see LICENSE.md for details
# Normally ctest will always fail with non-zero exit code, but we have tests
# that need to check specific exit codes.
# Required Variables
# COMMAND - Command to run
# Optional Variables
# INPUT - Standard input
# OUTPUT - Standard output (default: /dev/null)
# SUCCESS_EXIT - List of successful exit codes (default: 0, ie: 0;1)
# If no output is specified, discard output
if(NOT DEFINED OUTPUT)
if(WIN32)
set(OUTPUT NUL)
else()
set(OUTPUT /dev/null)
endif()
endif()
if(INPUT)
# Check to see that input file exists
if(NOT EXISTS ${INPUT})
message(FATAL_ERROR "Cannot find input: ${INPUT}")
endif()
# Execute with both stdin and stdout file
execute_process(COMMAND ${COMMAND}
RESULT_VARIABLE CMD_RESULT
INPUT_FILE ${INPUT}
OUTPUT_FILE ${OUTPUT})
else()
# Execute with only stdout file
execute_process(COMMAND ${COMMAND}
RESULT_VARIABLE CMD_RESULT
OUTPUT_FILE ${OUTPUT})
endif()
# Check if exit code is in list of successful exit codes
if(SUCCESS_EXIT)
list(FIND SUCCESS_EXIT ${CMD_RESULT} _INDEX)
if (${_INDEX} GREATER -1)
set(CMD_RESULT 0)
endif()
endif()
# Check to see if successful
if(CMD_RESULT)
message(FATAL_ERROR "${COMMAND} failed: ${CMD_RESULT}")
endif()
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