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61da959bb4
59d5f692f removed cmake.deps/cmake/DownloadAndExtractFile.cmake and
support for USE_EXISTING_SRC_DIR. The Ubuntu nightly PPA still relies
on USE_EXISTING_SRC_DIR functionality since it can't access the network
during the build.
Supplying an empty value for ExternalProject_Add()'s URL value appears
to provide the needed mechanism to avoid re-downloading when the sources
are already present. This is undocumented behavior, though, so it may
break in the future.
Now, if USE_EXISTING_SRC_DIR is set, the ExternalProject's URL variable
is unset, preventing the download and erroring out if the source doesn't
actually exist.
40 lines
1.3 KiB
CMake
40 lines
1.3 KiB
CMake
# This is similar to the build recipes, but instead downloads a third party
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# binary and installs it under the DEPS_PREFIX.
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# The INSTALL_COMMAND is executed in the folder where downloaded files are
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# extracted and the ${DEPS_INSTALL_DIR} holds the path to the third-party
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# install root.
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function(GetBinaryDep)
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cmake_parse_arguments(_gettool
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"BUILD_IN_SOURCE"
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"TARGET"
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"INSTALL_COMMAND"
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${ARGN})
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if(NOT _gettool_TARGET OR NOT _gettool_INSTALL_COMMAND)
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message(FATAL_ERROR "Must pass INSTALL_COMMAND and TARGET")
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endif()
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string(TOUPPER "${_gettool_TARGET}_URL" URL_VARNAME)
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string(TOUPPER "${_gettool_TARGET}_SHA256" HASH_VARNAME)
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set(URL ${${URL_VARNAME}})
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set(HASH ${${HASH_VARNAME}})
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if(NOT URL OR NOT HASH )
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message(FATAL_ERROR "${URL_VARNAME} and ${HASH_VARNAME} must be set")
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endif()
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if(USE_EXISTING_SRC_DIR)
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unset(URL)
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endif()
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ExternalProject_Add(${_gettool_TARGET}
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URL ${URL}
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URL_HASH SHA256=${HASH}
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DOWNLOAD_NO_PROGRESS TRUE
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DOWNLOAD_DIR ${DEPS_DOWNLOAD_DIR}
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CONFIGURE_COMMAND ""
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BUILD_IN_SOURCE 1
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BUILD_COMMAND ""
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INSTALL_COMMAND ${CMAKE_COMMAND} -E make_directory ${DEPS_INSTALL_DIR}/bin
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COMMAND "${_gettool_INSTALL_COMMAND}")
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list(APPEND THIRD_PARTY_DEPS ${__gettool_TARGET})
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endfunction()
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