Files
CPM.cmake/test/unit/cache.cmake
Lars Melchior 4064a45552 Add CPM_SOURCE_CACHE environmental variable support and keep existing sources (#83)
* read CPM_SOURCE_CACHE from environment

* update readme

* cleanup

* add cache tests
2019-10-10 20:13:10 +02:00

126 lines
3.0 KiB
CMake

cmake_minimum_required(VERSION 3.14 FATAL_ERROR)
include(${CPM_PATH}/testing.cmake)
include(CMakePackageConfigHelpers)
set(CPM_SOURCE_CACHE_DIR "${CMAKE_CURRENT_BINARY_DIR}/CPM")
set(TEST_BUILD_DIR ${CMAKE_CURRENT_BINARY_DIR}/cache)
function(clear_cache)
FILE(REMOVE_RECURSE ${CPM_SOURCE_CACHE_DIR})
if (EXISTS "${CPM_SOURCE_CACHE_DIR}")
ASSERTION_FAILED("cache not cleared")
endif()
endfunction()
function(update_cmake_lists)
configure_package_config_file(
"${CMAKE_CURRENT_LIST_DIR}/cache/CMakeLists.txt.in"
"${CMAKE_CURRENT_LIST_DIR}/cache/CMakeLists.txt"
INSTALL_DESTINATION ${CMAKE_CURRENT_BINARY_DIR}/junk
)
endfunction()
function(reset_test)
clear_cache()
FILE(REMOVE_RECURSE ${TEST_BUILD_DIR})
update_cmake_lists()
endfunction()
set(CATCH2_VERSION 2.8.0)
## Read CPM_SOURCE_CACHE from arguments
reset_test()
execute_process(
COMMAND
${CMAKE_COMMAND} "-H${CMAKE_CURRENT_LIST_DIR}/cache" "-B${TEST_BUILD_DIR}" "-DCPM_SOURCE_CACHE=${CPM_SOURCE_CACHE_DIR}"
RESULT_VARIABLE ret
)
ASSERT_EQUAL(${ret} "0")
if (NOT EXISTS "${CPM_SOURCE_CACHE_DIR}/catch2")
ASSERTION_FAILED("catch2 not in cache")
endif()
FILE(GLOB catch2_versions "${CPM_SOURCE_CACHE_DIR}/catch2/*")
list(LENGTH catch2_versions catch2_version_count)
ASSERT_EQUAL(${catch2_version_count} "1")
FILE(GLOB fibonacci_versions "${CPM_SOURCE_CACHE_DIR}/fibonacci/*")
list(LENGTH fibonacci_versions fibonacci_version_count)
ASSERT_EQUAL(${fibonacci_version_count} "1")
## Update dependency and keep CPM_SOURCE_CACHE
set(CATCH2_VERSION 2.9.0)
update_cmake_lists()
execute_process(
COMMAND
${CMAKE_COMMAND} ${TEST_BUILD_DIR}
RESULT_VARIABLE ret
)
ASSERT_EQUAL(${ret} "0")
FILE(GLOB catch2_versions "${CPM_SOURCE_CACHE_DIR}/catch2/*")
list(LENGTH catch2_versions catch2_version_count)
ASSERT_EQUAL(${catch2_version_count} "2")
FILE(GLOB fibonacci_versions "${CPM_SOURCE_CACHE_DIR}/fibonacci/*")
list(LENGTH fibonacci_versions fibonacci_version_count)
ASSERT_EQUAL(${fibonacci_version_count} "1")
## Clear cache and update
clear_cache()
execute_process(
COMMAND
${CMAKE_COMMAND} ${TEST_BUILD_DIR}
RESULT_VARIABLE ret
)
ASSERT_EQUAL(${ret} "0")
if (NOT EXISTS "${CPM_SOURCE_CACHE_DIR}/catch2")
ASSERTION_FAILED("catch2 not in cache")
endif()
## Read CPM_SOURCE_CACHE from environment
reset_test()
execute_process(
COMMAND
${CMAKE_COMMAND} -E env "CPM_SOURCE_CACHE=${CPM_SOURCE_CACHE_DIR}" ${CMAKE_COMMAND} "-H${CMAKE_CURRENT_LIST_DIR}/cache" "-B${TEST_BUILD_DIR}"
RESULT_VARIABLE ret
)
ASSERT_EQUAL(${ret} "0")
if (NOT EXISTS "${CPM_SOURCE_CACHE_DIR}/catch2")
ASSERTION_FAILED("catch2 not in cache")
endif()
## Overwrite CPM_SOURCE_CACHE with argument
reset_test()
execute_process(
COMMAND
${CMAKE_COMMAND} -E env "CPM_SOURCE_CACHE=${CMAKE_CURRENT_BINARY_DIR}/junk" ${CMAKE_COMMAND} "-H${CMAKE_CURRENT_LIST_DIR}/cache" "-B${TEST_BUILD_DIR}" "-DCPM_SOURCE_CACHE=${CPM_SOURCE_CACHE_DIR}"
RESULT_VARIABLE ret
)
ASSERT_EQUAL(${ret} "0")
if (NOT EXISTS "${CPM_SOURCE_CACHE_DIR}/catch2")
ASSERTION_FAILED("catch2 not in cache")
endif()