On Thu, 27 Nov 2008, Aaron Hawryluk wrote:
> If you're stuck with FTP and really need a sync solution, what 
> I've done in the past is a) mount the FTP directory using 
> curlftpfs and b) rsync files to that directory.

Thanks, but unfortunately this will not help in bandwidth 
perspective: rsync will have to read the whole remote file to 
compare it with the local file. Rsync only save bandwidth when 
it run on the other side as well (communication in rsync 
protocol).

> http://www.linuxjournal.com/article/6686

This is not much difference that I have: lftp will check 
timestamp and file size before mirror the file. However, for 
this to work, the local file should not be overwritten (which 
will change the timestamp) when there is no change (i.e. the 
component which produce it and all its depedencies has not 
changed). So, back to my original question: how to find out all 
the depedencies of a component, so I can check whether any of 
them were modified?

-- 
                              (stephan paul) Arif Sahari Wibowo
    _____  _____  _____  _____
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  _____/ /      /    / _____/      http://www.arifsaha.com/

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