[CMake] Wanted : Macro to copy files if touched

[Andy Cedilnik]

Hi,

Couple of things. The CONFIGURE_FILE approach is more correct because:

1. It does copy_if_different already
2. It does dependency checking

So, the real code should just say:

FILE(MAKE_DIRECTORY ${EXECUTABLE_OUTPUT_PATH}/resources )
FOREACH(file ${FILES_TO_BE_COPIED} )
  GET_FILENAME_COMPONENT(name ${file} NAME)
  CONFIGURE_FILE( ${file} ${EXECUTABLE_OUTPUT_PATH}/resources COPYONLY)
ENDFOREACH(file) 


       Andy

Filipe Sousa wrote:

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>John Biddiscombe wrote:
>  
>
>>Hello all,
>>
>>I have a directory with some text files in that I need to copy to my 
>>build tree, currently I copy them like this
>>
>>FILE(MAKE_DIRECTORY ${EXECUTABLE_OUTPUT_PATH}/resources )
>>FOREACH(file ${FILES_TO_BE_COPIED} )
>>  GET_FILENAME_COMPONENT(name ${file} NAME)
>>  IF (NOT EXISTS ${EXECUTABLE_OUTPUT_PATH}/resources/${name} )
>>    CONFIGURE_FILE( ${file} ${EXECUTABLE_OUTPUT_PATH}/resources COPYONLY)
>>  ENDIF (NOT EXISTS ${EXECUTABLE_OUTPUT_PATH}/resources/${name} )
>>ENDFOREACH(file) 
>>
>>which copies them only if they are not already there. I'm making a lot 
>>of tweaks to them at the moment and I'd like to copy them if they're not 
>>there or if the time in the source tree is is newer than the previously 
>>copied version.
>>    
>>
>
>I suggest using cmake -E copy_if_different to copy the file if they are
>different
>
>fsousa at neptuno ~ $ cmake -E
>CMake Error: cmake version 2.3-20060113
>Usage: cmake -E [command] [arguments ...]
>Available commands:
>  chdir dir cmd [args]... - run command in a given directory
>  copy file destination   - copy file to destination (either file or
>directory)
>  copy_if_different in-file out-file   - copy file if input has changed
>  copy_directory source destination    - copy directory 'source' content
>to directory 'destination'
>  compare_files file1 file2 - check if file1 is same as file2
>  echo [string]...        - displays arguments as text
>  remove file1 file2 ...  - remove the file(s)
>  tar [cxt][vfz] file.tar file/dir1 file/dir2 ... - create a tar.
>  time command [args] ... - run command and return elapsed time
>  create_symlink old new  - create a symbolic link new -> old
>
>
>
>  
>
>>Before I start writing a new macro, if anyone has already got a snippet 
>>which does this, I'd love to use it. I'm guessing I'd need to set up a 
>>custom rule, add dependencies etc, I'm sure there must be examples out 
>>there.
>>
>>thanks
>>
>>JB
>>
>>    
>>
>
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-- 
Andy Cedilnik
Kitware Inc.