82 lines
3.0 KiB
CMake
82 lines
3.0 KiB
CMake
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if(NOT BUILDDIR)
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# Workaround for funny MSVC behaviour - this segment is only used when using cmake gui
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set(BUILDDIR ${CMAKE_BINARY_DIR})
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endif()
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if(WITHOUT_GIT)
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set(rev_date "1970-01-01 00:00:00 +0000")
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set(rev_hash "unknown")
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set(rev_branch "Archived")
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# No valid git commit date, use compiled date
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string(TIMESTAMP rev_date_fallback "%Y-%m-%d %H:%M:%S" UTC)
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else()
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if(GIT_EXECUTABLE)
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# Create a revision-string that we can use
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execute_process(
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COMMAND "${GIT_EXECUTABLE}" describe --long --match init --dirty=+ --abbrev=12 --always
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WORKING_DIRECTORY "${CMAKE_SOURCE_DIR}"
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OUTPUT_VARIABLE rev_info
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OUTPUT_STRIP_TRAILING_WHITESPACE
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ERROR_QUIET
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)
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# And grab the commits timestamp
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execute_process(
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COMMAND "${GIT_EXECUTABLE}" show -s --format=%ci
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WORKING_DIRECTORY "${CMAKE_SOURCE_DIR}"
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OUTPUT_VARIABLE rev_date
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OUTPUT_STRIP_TRAILING_WHITESPACE
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ERROR_QUIET
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)
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# Also retrieve branch name
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execute_process(
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COMMAND "${GIT_EXECUTABLE}" rev-parse --abbrev-ref HEAD
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WORKING_DIRECTORY "${CMAKE_SOURCE_DIR}"
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OUTPUT_VARIABLE rev_branch
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OUTPUT_STRIP_TRAILING_WHITESPACE
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ERROR_QUIET
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)
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endif()
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# Last minute check - ensure that we have a proper revision
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# If everything above fails (means the user has erased the git revision control directory or removed the origin/HEAD tag)
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if(NOT rev_info)
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# No valid ways available to find/set the revision/hash, so let's force some defaults
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message(STATUS "
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Could not find a proper repository signature (hash) - you may need to pull tags with git fetch -t
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Continuing anyway - note that the versionstring will be set to \"unknown 1970-01-01 00:00:00 (Archived)\"")
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set(rev_date "1970-01-01 00:00:00 +0000")
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set(rev_hash "unknown")
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set(rev_branch "Archived")
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# No valid git commit date, use compiled date
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string(TIMESTAMP rev_date_fallback "%Y-%m-%d %H:%M:%S" UTC)
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else()
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# We have valid date from git commit, use it
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set(rev_date_fallback ${rev_date})
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# Extract information required to build a proper versionstring
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string(REGEX REPLACE init-|[0-9]+-g "" rev_hash ${rev_info})
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endif()
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endif()
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# For package / copyright information we always need proper date
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string(REGEX MATCH "([0-9]+)-([0-9]+)-([0-9]+)" rev_date_fallback_match ${rev_date_fallback})
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set(rev_year ${CMAKE_MATCH_1})
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set(rev_month ${CMAKE_MATCH_2})
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set(rev_day ${CMAKE_MATCH_3})
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# Create the actual revision_data.h file from the above params
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if(NOT "${rev_hash_cached}" MATCHES "${rev_hash}" OR NOT "${rev_branch_cached}" MATCHES "${rev_branch}" OR NOT EXISTS "${CMAKE_CURRENT_BINARY_DIR}/src/shared/revision_data.h")
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configure_file(
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"${CMAKE_SOURCE_DIR}/src/shared/revision_data.h.in"
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"${CMAKE_CURRENT_BINARY_DIR}/src/shared/revision_data.h"
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@ONLY
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)
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set(rev_hash_cached "${rev_hash}" CACHE INTERNAL "Cached commit-hash")
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set(rev_branch_cached "${rev_branch}" CACHE INTERNAL "Cached branch name")
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endif()
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