How can we ensure Bazaar (bzr) remains active?
jelmer at samba.org
Tue Sep 22 01:02:31 UTC 2015
On Mon, Sep 21, 2015 at 11:14:18AM +0300, Eli Zaretskii wrote:
> > From: Torsten Bronger <bronger at physik.rwth-aachen.de>
> > Date: Mon, 21 Sep 2015 09:41:15 +0200
> > I think one should go even one step further. From
> > <https://www.stationary-traveller.eu/pages/bzr-a-retrospective.html>:
> > Could bzr have a second life as another UI for the Git file
> > format, becoming part of the Git world rather than competing
> > with it? Sure, I guess. Several people, including myself, have
> > suggested this in the past. It would however still require a
> > fair amount of work - bzr-git is unfinished. If it's just the UI
> > you're after then it is probably easier to simply build a
> > bzr-like Git UI from scratch, directly on top of something like
> > libgit2 or Dulwich.
> I question the validity of that conclusion. Dulwich is IMO out, as
> it's too slow, even when parts of it are in C. I used to use bzr-git
> quite a lot, and found it unbearably slow for any significant fetch
> from a Git repository.
Dulwich is definitely slower than C Git, but is not the main cause for
bzr-git is slow because it has to do format conversion - it can't
simply copy the pack file like "plain" Dulwich and C Git can. bzr-git
fetches from a Git format repository into a Bazaar format repository.
This means that when bzr-git fetches it has to recreate every Git
fulltext by applying the Git delta chain to create that fulltext, and
then insert it into the Bazaar repository (which involves generating
a pack filled with deltas in Bazaar's format).
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