Re: can you please add a synchronization feature to the GNU cp

[Eric Blake]

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According to William Tambe on 6/11/2008 10:34 AM:
|
| I know rsync provide a similar feature but it would be nice to have just
| a single option to the cp command to do the work without having to use
| another tool which has its own set of options and feature.

Unfortunately, adding a non-standard option to cp requires a lot of
justification.  As you noted, you can already use rsync; and whereas every
vendor supplies a cp implementation (with POSIX describing a common
subset), to my knowledge there is only one implementation of rsync.  Ask
yourself which is better - relying on a relatively stable and pre-existing
interface provided by rsync, or waiting for several years for a
non-standard GNU cp extension to propogate while still lacking that
extension in all the vendor-supplied cp versions?  We will probably review
any patch written that adds such a feature, but none of the regulars on
this list plan on writing such a patch because the benefit-to-cost ratio
is so small.

- --
Don't work too hard, make some time for fun as well!

Eric Blake             address@hidden
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