| |
| # Helper function to copy file X to file Y if X and Y are different. |
| # |
| # Unnamed parameters: |
| # |
| # * src file path |
| # * target file path |
| # |
| # Named parameters: |
| # |
| # COMMENT comment string to use other than the default |
| function(copy_if_different inpath outpath) |
| CMAKE_PARSE_ARGUMENTS(ARG "" "COMMENT" "" ${ARGN}) |
| get_filename_component(infile "${inpath}" NAME) |
| get_filename_component(outfile "${outpath}" NAME) |
| set(comment "Updating ${outfile} from ${infile}") |
| if(NOT ARG_COMMENT) |
| set(comment "${ARG_COMMENT}") |
| endif() |
| add_custom_command( |
| OUTPUT "${outpath}" |
| COMMAND ${CMAKE_COMMAND} -E copy_if_different |
| ${inpath} ${outpath} |
| DEPENDS ${inpath} |
| COMMENT "${comment}" |
| VERBATIM) |
| endfunction() |
| |
