# Adds version control information to the variable VERS. For
 
# determining the Version Control System used (if any) it inspects the
 
# existence of certain subdirectories under SOURCE_DIR (if provided as an
 
# extra argument, otherwise uses CMAKE_CURRENT_SOURCE_DIR).
 
 
 
function(get_source_info path revision repository
)  
      WORKING_DIRECTORY ${path}
 
      RESULT_VARIABLE git_result
 
      OUTPUT_VARIABLE git_output
 
      ERROR_QUIET)
 
      string(STRIP "${git_output}" git_output
)  
        WORKING_DIRECTORY ${path}
 
        RESULT_VARIABLE git_result
 
        OUTPUT_VARIABLE git_output)
 
        string(STRIP "${git_output}" git_output
)  
        set(${revision} ${git_output} PARENT_SCOPE)  
      execute_process(COMMAND ${GIT_EXECUTABLE} rev-parse --abbrev-ref --symbolic-full-name @{upstream}
  
        WORKING_DIRECTORY ${path}
 
        RESULT_VARIABLE git_result
 
        OUTPUT_VARIABLE git_output
 
        ERROR_QUIET)
 
        string(REPLACE "/" ";" branch 
${git_output})  
        list(GET branch 0 remote
)  
        WORKING_DIRECTORY ${path}
 
        RESULT_VARIABLE git_result
 
        OUTPUT_VARIABLE git_output
 
        ERROR_QUIET)
 
        string(STRIP "${git_output}" git_output
)  
        set(${repository} ${git_output} PARENT_SCOPE)  
        set(${repository} ${path} PARENT_SCOPE)  
    message(WARNING 
"Git not found. Version cannot be determined.")