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2622bc3f65
The matches have already been calculated and can simply be taken from CMAKE_MATCH_n variables. This avoids multiple compilations of the same or very similar regular expressions.
38 lines
1.2 KiB
CMake
38 lines
1.2 KiB
CMake
# Try to identify the current development source version.
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set(CMake_VERSION_SOURCE "")
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if(EXISTS ${CMake_SOURCE_DIR}/.git/HEAD)
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find_program(GIT_EXECUTABLE NAMES git git.cmd)
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mark_as_advanced(GIT_EXECUTABLE)
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if(GIT_EXECUTABLE)
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execute_process(
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COMMAND ${GIT_EXECUTABLE} rev-parse --verify -q --short=4 HEAD
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OUTPUT_VARIABLE head
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OUTPUT_STRIP_TRAILING_WHITESPACE
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WORKING_DIRECTORY ${CMake_SOURCE_DIR}
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)
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if(head)
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set(CMake_VERSION_SOURCE "g${head}")
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execute_process(
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COMMAND ${GIT_EXECUTABLE} update-index -q --refresh
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WORKING_DIRECTORY ${CMake_SOURCE_DIR}
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)
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execute_process(
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COMMAND ${GIT_EXECUTABLE} diff-index --name-only HEAD --
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OUTPUT_VARIABLE dirty
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OUTPUT_STRIP_TRAILING_WHITESPACE
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WORKING_DIRECTORY ${CMake_SOURCE_DIR}
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)
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if(dirty)
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set(CMake_VERSION_SOURCE "${CMake_VERSION_SOURCE}-dirty")
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endif()
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endif()
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endif()
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elseif(EXISTS ${CMake_SOURCE_DIR}/CVS/Repository)
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file(READ ${CMake_SOURCE_DIR}/CVS/Repository repo)
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set(branch "")
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if("${repo}" MATCHES "\\.git/([^\r\n]*)")
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set(branch "${CMAKE_MATCH_1}")
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endif()
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set(CMake_VERSION_SOURCE "cvs${branch}")
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endif()
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