Re: Are binary xdeltas only used if you use git-gc?
- Date: Fri, 31 Oct 2008 17:26:56 +0100
- From: Jakub Narebski <jnareb@xxxxxxxxx>
- Subject: Re: Are binary xdeltas only used if you use git-gc?
Thanassis Tsiodras wrote:
> On Fri, Oct 31, 2008 at 1:15 PM, Jakub Narebski <jnareb@xxxxxxxxx> wrote:
> > Git does deltification _only_ in packfiles. But when you push via SSH
> > git would generate a pack file with commits the other side doesn't
> > have, and those packs are thin packs, so they also have deltas... but
> > the remote side then adds bases to those thin packs making them
> > standalone: you would have to git-gc on remote.
> So I have to git-gc on my side (after the commits), git-gc on the remote,
> and then git-push?
Perhaps I haven't made myself clear.
On the local side: git-commit creates loose (compressed, but not
deltified) objects. git-gc packs and deltifies.
On the remote side (for smart protocols, i.e. git and ssh): git
creates _thin_ pack, deltified; on the remote side git either makes
pack thick/self contained by adding base objects (object + deltas),
or explodes pack into loose object (object). You need git-gc on
remote server to fully deltify on remote side. But transfer is fully
On the remote side (for dumb protocols, i.e. rsync and http): git
finds required packs and transfers them whole. So the situation is
like on local side, but git might transfer more than really needed
because it transfers packs in full.
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