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#==============================================================================
# ExternalProject
#==============================================================================
set(stamp_dir "${CMAKE_CURRENT_BINARY_DIR}/stamps-ep")
include(ExternalProject)
ExternalProject_Add(fake_ext_proj
# We don't actually do a build, so we never try to download from this URL
URL https://example.com/something.zip
STAMP_DIR ${stamp_dir}
)
# Report whether the --touch option was added to the extraction script
set(extraction_script "${stamp_dir}/extract-fake_ext_proj.cmake")
file(STRINGS "${extraction_script}" results REGEX "--touch")
if("${results}" STREQUAL "")
message(STATUS "ExternalProject: Using timestamps from archive")
else()
message(STATUS "ExternalProject: Using extraction time for the timestamps")
endif()
#==============================================================================
# FetchContent
#==============================================================================
set(stamp_dir "${CMAKE_CURRENT_BINARY_DIR}/stamps-fc")
set(archive_file ${CMAKE_CURRENT_BINARY_DIR}/test_archive.7z)
file(ARCHIVE_CREATE
OUTPUT ${archive_file}
PATHS ${CMAKE_CURRENT_LIST_DIR}
FORMAT 7zip
)
include(FetchContent)
FetchContent_Declare(fake_fc_proj
URL file://${archive_file}
STAMP_DIR ${stamp_dir}
)
FetchContent_MakeAvailable(fake_fc_proj)
# Report whether the --touch option was added to the extraction script
set(extraction_script "${stamp_dir}/extract-fake_fc_proj-populate.cmake")
file(STRINGS "${extraction_script}" results REGEX "--touch")
if("${results}" STREQUAL "")
message(STATUS "FetchContent: Using timestamps from archive")
else()
message(STATUS "FetchContent: Using extraction time for the timestamps")
endif()
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