rsync - Sep 2015 - idea

I don't have the technical knowledge to bring this idea into the real world
but:
What do you think about adding a tar/zip option? I like to rsync my
/Documents directory and as i was doing so this morning my pen drive ran
out of room. I only ever make minor changes to /Documents and sometimes I
forget to backup what I've changed and then forget what I've changed and
so
rsync makes it simple (especially with --delete).
This is possibly beside the point: To get everything to fit on the pen
drive I discovered deleting .Trash* freed up the space. My question is why
does deleting a file move it to .Trash but not make the space available for
reuse?

-- 
:-)~MIKE~(-:
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This isn't really an rsync question but...

No, moving a file to .Trash does not free space.  As far as the file
system is concerned this is just another directory and the file is not
actually deleted yet.

As far as compression goes, you have 2 choices:
#1 Use compression on wherever you sync the pen drive with so rsync is
only dealing with compressed files

#2 Use a compressed file system on the pen drive (this will almost
certainly have compatibility issues with multiple OSs especially if
you are using computers that you don't control.

Personally, I always use computers that I control and I use OwnCloud
to keep such files in sync.

On 09/23/2015 02:29 PM, Michael Havens wrote:
> I don't have the technical knowledge to bring this idea into the
> real world but: What do you think about adding a tar/zip option? I
> like to rsync my /Documents directory and as i was doing so this
> morning my pen drive ran out of room. I only ever make minor
> changes to /Documents and sometimes I forget to backup what I've
> changed and then forget what I've changed and so rsync makes it
> simple (especially with --delete). This is possibly beside the
> point: To get everything to fit on the pen drive I discovered
> deleting .Trash* freed up the space. My question is why does
> deleting a file move it to .Trash but not make the space available
> for reuse?
> 
> -- :-)~MIKE~(-:
> 
> 
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	Systems Administrator		Internet:
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Michael Havens <bmike1 at gmail.com> wrote:
> why does deleting a file move it to .Trash but not make the space available
for reuse?
Because, as already said, as far as the filesystem is concerned it's still a
file taking up space.

Longer answer: I guess you are using a "desktop" interface, click the
file, and tell the file manager to delete it. It doesn't delete it, it moves
it to the Trash (english: wastebasket) from where you can recover it if you
decide it was a mistake deleting it. You have to explicitly empty the
wastebasket before the file actually disappears and the space becomes available
again.

While this isn't really an rsync issue, I see two workarounds :

1) Discipline yourself to emptying the wastbasket from time to time - I've
seen user with *massive* amounts of stuff in there as they've never emptied
it for as long as they've owned the computer !

2) Use an "--exclude" clause to rsync to exclude files in the
wastebasket, then these files won't get synced to your flash drive.