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33 lines
1 KiB
CMake
33 lines
1 KiB
CMake
set(CPM_DOWNLOAD_VERSION 0.38.1)
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if(CPM_SOURCE_CACHE)
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set(CPM_DOWNLOAD_LOCATION "${CPM_SOURCE_CACHE}/cpm/CPM_${CPM_DOWNLOAD_VERSION}.cmake")
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elseif(DEFINED ENV{CPM_SOURCE_CACHE})
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set(CPM_DOWNLOAD_LOCATION "$ENV{CPM_SOURCE_CACHE}/cpm/CPM_${CPM_DOWNLOAD_VERSION}.cmake")
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else()
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set(CPM_DOWNLOAD_LOCATION "${CMAKE_BINARY_DIR}/cmake/CPM_${CPM_DOWNLOAD_VERSION}.cmake")
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endif()
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# Expand relative path. This is important if the provided path contains a tilde (~)
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get_filename_component(CPM_DOWNLOAD_LOCATION ${CPM_DOWNLOAD_LOCATION} ABSOLUTE)
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function(download_cpm)
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message(STATUS "Downloading CPM.cmake to ${CPM_DOWNLOAD_LOCATION}")
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file(DOWNLOAD
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https://github.com/cpm-cmake/CPM.cmake/releases/download/v${CPM_DOWNLOAD_VERSION}/CPM.cmake
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${CPM_DOWNLOAD_LOCATION}
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)
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endfunction()
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if(NOT (EXISTS ${CPM_DOWNLOAD_LOCATION}))
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download_cpm()
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else()
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# resume download if it previously failed
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file(READ ${CPM_DOWNLOAD_LOCATION} check)
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if("${check}" STREQUAL "")
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download_cpm()
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endif()
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unset(check)
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endif()
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include(${CPM_DOWNLOAD_LOCATION})
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