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https://github.com/c64scene-ar/llvm-6502.git
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f931261b51
CMake versions 2.8.4 and earlier were giving this error since r146323: "string end index: -1 is out of range 0 - 6" Passing -1 as the length of the desired substring was a new feature added in CMake 2.8.5: http://www.cmake.org/Bug/view.php?id=10740 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146372 91177308-0d34-0410-b5e6-96231b3b80d8
71 lines
2.9 KiB
CMake
71 lines
2.9 KiB
CMake
# Adds version control information to the variable VERS. For
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# determining the Version Control System used (if any) it inspects the
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# existence of certain subdirectories under CMAKE_CURRENT_SOURCE_DIR.
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function(add_version_info_from_vcs VERS)
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string(REPLACE "svn" "" result "${${VERS}}")
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if( EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/.svn" )
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set(result "${result}svn")
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# FindSubversion does not work with symlinks. See PR 8437
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if( NOT IS_SYMLINK "${CMAKE_CURRENT_SOURCE_DIR}" )
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find_package(Subversion)
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endif()
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if( Subversion_FOUND )
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subversion_wc_info( ${CMAKE_CURRENT_SOURCE_DIR} Project )
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if( Project_WC_REVISION )
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set(SVN_REVISION ${Project_WC_REVISION} PARENT_SCOPE)
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set(result "${result}-r${Project_WC_REVISION}")
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endif()
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endif()
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elseif( EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/.git )
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set(result "${result}git")
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# Try to get a ref-id
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find_program(git_executable NAMES git git.exe git.cmd)
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if( git_executable )
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set(is_git_svn_rev_exact false)
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execute_process(COMMAND ${git_executable} svn log --limit=1 --oneline
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WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
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TIMEOUT 5
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RESULT_VARIABLE git_result
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OUTPUT_VARIABLE git_output)
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if( git_result EQUAL 0 )
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string(REGEX MATCH r[0-9]+ git_svn_rev ${git_output})
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string(LENGTH "${git_svn_rev}" rev_length)
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math(EXPR rev_length "${rev_length}-1")
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string(SUBSTRING "${git_svn_rev}" 1 ${rev_length} git_svn_rev_number)
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set(SVN_REVISION ${git_svn_rev_number} PARENT_SCOPE)
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set(git_svn_rev "-svn-${git_svn_rev}")
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# Determine if the HEAD points directly at a subversion revision.
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execute_process(COMMAND ${git_executable} svn find-rev HEAD
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WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
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TIMEOUT 5
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RESULT_VARIABLE git_result
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OUTPUT_VARIABLE git_output)
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if( git_result EQUAL 0 )
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string(STRIP "${git_output}" git_head_svn_rev_number)
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if( git_head_svn_rev_number EQUAL git_svn_rev_number )
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set(is_git_svn_rev_exact true)
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endif()
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endif()
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else()
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set(git_svn_rev "")
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endif()
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execute_process(COMMAND
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${git_executable} rev-parse --short HEAD
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WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
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TIMEOUT 5
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RESULT_VARIABLE git_result
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OUTPUT_VARIABLE git_output)
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if( git_result EQUAL 0 AND NOT is_git_svn_rev_exact )
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string(STRIP "${git_output}" git_ref_id)
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set(GIT_COMMIT ${git_ref_id} PARENT_SCOPE)
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set(result "${result}${git_svn_rev}-${git_ref_id}")
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else()
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set(result "${result}${git_svn_rev}")
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endif()
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endif()
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endif()
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set(${VERS} ${result} PARENT_SCOPE)
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endfunction(add_version_info_from_vcs)
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