On Oct 19, 2012, at 21:58, Davor Cubranic <cubra...@stat.ubc.ca> wrote:

> What he means is that you can use Subversion as an alternative distribution 
> system to downloading the ports.tar file. That way you get roughly the 
> behaviour you asked for, since "svn update" will do nothing if you locally 
> have the most recent version of the master.

Well, it won't do "nothing"... it will scan the local ports working copy and 
compare it with what's available on the server. The end result is that no files 
will be changed and nothing significant will have to be downloaded, but it will 
still take up to several minutes of disk I/O to determine that, depending on 
the speed of your disk. Using Subversion 1.7 or later should decrease the 
amount of I/O needed and thus decrease the time needed.


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