CMake/Tests/RunCMake/ExternalProject/UsesTerminal-check.cmake

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cmake_minimum_required(VERSION 3.3)
# If we are using the Ninja generator, we can check and verify that the
# USES_TERMINAL option actually works by examining the Ninja build file.
# This is the only way, since CMake doesn't offer a way to examine the
# options on a custom command after it has been added. Furthermore,
# there isn't an easy way to test for this by actually running Ninja.
#
# Other generators don't currently support USES_TERMINAL at this time.
# This file can be improved to support them if they do. Until then, we
# simply assume success for new generator types.
#
# For Ninja, there is a complication. If the Ninja generator detects a
# version of Ninja < 1.5, it won't actually emit the console pool command,
# because those Ninja versions don't yet support the console pool. In
# that case, we also have to assume success.
# Check Ninja build output to verify whether or not a target step is in the
# console pool.
macro(CheckNinjaStep _target _step _require)
if("${_build}" MATCHES
" DESC = Performing ${_step} step for '${_target}'
pool = console"
)
if(NOT ${_require})
set(RunCMake_TEST_FAILED "${_target} ${_step} step is in console pool")
return()
endif()
else()
if(${_require})
set(RunCMake_TEST_FAILED "${_target} ${_step} step not in console pool")
return()
endif()
endif()
endmacro()
# Check Ninja build output to verify whether each target step is in the
# console pool.
macro(CheckNinjaTarget _target
_download _update _configure _build _test _install
)
CheckNinjaStep(${_target} download ${_download})
CheckNinjaStep(${_target} update ${_update})
CheckNinjaStep(${_target} configure ${_configure})
CheckNinjaStep(${_target} build ${_build})
CheckNinjaStep(${_target} test ${_test})
CheckNinjaStep(${_target} install ${_install})
endmacro()
# Load build/make file, depending on generator
if(RunCMake_GENERATOR STREQUAL Ninja)
# Check the Ninja version. If < 1.5, console pool isn't supported and
# so the generator would not emit console pool usage. That would cause
# this test to fail.
execute_process(COMMAND ${RunCMake_MAKE_PROGRAM} --version
RESULT_VARIABLE _version_result
OUTPUT_VARIABLE _version
ERROR_QUIET
OUTPUT_STRIP_TRAILING_WHITESPACE
)
if(_version_result OR _version VERSION_EQUAL "0")
set(RunCMake_TEST_FAILED "Failed to get Ninja version")
return()
endif()
if(_version VERSION_LESS "1.5")
return() # console pool not supported on Ninja < 1.5
endif()
# Read the Ninja build file
set(_build_file "${RunCMake_TEST_BINARY_DIR}/build.ninja")
if(NOT EXISTS "${_build_file}")
set(RunCMake_TEST_FAILED "Ninja build file not created")
return()
endif()
file(READ "${_build_file}" _build)
set(_target_check_macro CheckNinjaTarget)
elseif((RunCMake_GENERATOR STREQUAL "") OR NOT DEFINED RunCMake_GENERATOR)
# protection in case somebody renamed RunCMake_GENERATOR
set(RunCMake_TEST_FAILED "Unknown generator")
return()
else()
# We don't yet know how to test USES_TERMINAL on this generator.
return()
endif()
# Actual tests:
CheckNinjaTarget(TerminalTest1
true true true true true true )
CheckNinjaTarget(TerminalTest2
true false true false true false)
CheckNinjaTarget(TerminalTest3
false true false true false true )
CheckNinjaTarget(TerminalTest4
false false false false false false)