c35961b010
The ExternalData_LINK_CONTENT option tells ExternalData to convert real data files it finds into content links and to "stage" the original content in a ".ExternalData_<algo>_<hash>" file. However, after a data object has been staged it is possible that a user-provided pattern in the "REGEX:" option will later match the staged object file. We must not process staged object files even when a user pattern matches them. Fix the implementation to not match a staged object file as a normal data file for conversion. Extend the RunCMake.ExternalData test to cover this case.
38 lines
1.4 KiB
CMake
38 lines
1.4 KiB
CMake
include(ExternalData)
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set(ExternalData_LINK_CONTENT MD5)
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set(ExternalData_SOURCE_ROOT ${CMAKE_CURRENT_BINARY_DIR})
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set(ExternalData_BINARY_ROOT ${CMAKE_CURRENT_BINARY_DIR}/ExternalData)
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set(input ${CMAKE_CURRENT_BINARY_DIR}/Dir)
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set(output ${CMAKE_CURRENT_BINARY_DIR}/ExternalData/Dir)
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set(staged "${input}/.ExternalData_MD5_c18ff9804c8deec9eaeb17063cda8b7b")
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set(content "To be transformed into a content link.")
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file(REMOVE ${staged})
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file(REMOVE_RECURSE ${input})
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file(WRITE ${input}/ToLink.txt "${content}")
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ExternalData_Expand_Arguments(Data args "DATA{${input}/,REGEX:.*}")
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if("x${args}" STREQUAL "x${output}")
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message(STATUS "Raw data correctly transformed to content link!")
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else()
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message(FATAL_ERROR "Data reference transformed to:\n ${args}\n"
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"but we expected:\n ${output}")
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endif()
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if(EXISTS "${staged}")
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message(STATUS "Staged content exists!")
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else()
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message(FATAL_ERROR "Staged content missing!")
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endif()
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# Expand again to check whether staged content is ignored.
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ExternalData_Expand_Arguments(Data args "DATA{${input}/,REGEX:.*}")
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file(STRINGS "${staged}" staged_content LIMIT_INPUT 1024)
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if("${content}" STREQUAL "${staged_content}")
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message(STATUS "Staged content is correct!")
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else()
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message(STATUS "Staged content is incorrect!")
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endif()
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if(EXISTS "${staged}.md5")
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message(FATAL_ERROR "Staged content was incorrectly re-staged!")
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else()
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message(STATUS "Staged content was correctly not re-staged!")
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endif()
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