73 lines
2.3 KiB
CMake
73 lines
2.3 KiB
CMake
# - Find the Catch test framework or download it (single header)
|
|
#
|
|
# This is a quick module for internal use. It assumes that Catch is
|
|
# REQUIRED and that a minimum version is provided (not EXACT). If
|
|
# a suitable version isn't found locally, the single header file
|
|
# will be downloaded and placed in the build dir: PROJECT_BINARY_DIR.
|
|
#
|
|
# This code sets the following variables:
|
|
# CATCH_INCLUDE_DIR - path to catch.hpp
|
|
# CATCH_VERSION - version number
|
|
|
|
option(DOWNLOAD_CATCH "Download catch2 if not found")
|
|
|
|
if(NOT Catch_FIND_VERSION)
|
|
message(FATAL_ERROR "A version number must be specified.")
|
|
elseif(Catch_FIND_REQUIRED)
|
|
message(FATAL_ERROR "This module assumes Catch is not required.")
|
|
elseif(Catch_FIND_VERSION_EXACT)
|
|
message(FATAL_ERROR "Exact version numbers are not supported, only minimum.")
|
|
endif()
|
|
|
|
# Extract the version number from catch.hpp
|
|
function(_get_catch_version)
|
|
file(
|
|
STRINGS "${CATCH_INCLUDE_DIR}/catch.hpp" version_line
|
|
REGEX "Catch v.*"
|
|
LIMIT_COUNT 1)
|
|
if(version_line MATCHES "Catch v([0-9]+)\\.([0-9]+)\\.([0-9]+)")
|
|
set(CATCH_VERSION
|
|
"${CMAKE_MATCH_1}.${CMAKE_MATCH_2}.${CMAKE_MATCH_3}"
|
|
PARENT_SCOPE)
|
|
endif()
|
|
endfunction()
|
|
|
|
# Download the single-header version of Catch
|
|
function(_download_catch version destination_dir)
|
|
message(STATUS "Downloading catch v${version}...")
|
|
set(url https://github.com/philsquared/Catch/releases/download/v${version}/catch.hpp)
|
|
file(DOWNLOAD ${url} "${destination_dir}/catch.hpp" STATUS status)
|
|
list(GET status 0 error)
|
|
if(error)
|
|
message(FATAL_ERROR "Could not download ${url}")
|
|
endif()
|
|
set(CATCH_INCLUDE_DIR
|
|
"${destination_dir}"
|
|
CACHE INTERNAL "")
|
|
endfunction()
|
|
|
|
# Look for catch locally
|
|
find_path(
|
|
CATCH_INCLUDE_DIR
|
|
NAMES catch.hpp
|
|
PATH_SUFFIXES catch2)
|
|
if(CATCH_INCLUDE_DIR)
|
|
_get_catch_version()
|
|
endif()
|
|
|
|
# Download the header if it wasn't found or if it's outdated
|
|
if(NOT CATCH_VERSION OR CATCH_VERSION VERSION_LESS ${Catch_FIND_VERSION})
|
|
if(DOWNLOAD_CATCH)
|
|
_download_catch(${Catch_FIND_VERSION} "${PROJECT_BINARY_DIR}/catch/")
|
|
_get_catch_version()
|
|
else()
|
|
set(CATCH_FOUND FALSE)
|
|
return()
|
|
endif()
|
|
endif()
|
|
|
|
add_library(Catch2::Catch2 IMPORTED INTERFACE)
|
|
set_property(TARGET Catch2::Catch2 PROPERTY INTERFACE_INCLUDE_DIRECTORIES "${CATCH_INCLUDE_DIR}")
|
|
|
|
set(CATCH_FOUND TRUE)
|