Re: RFD: git-bzr: anyone interested?

From: Sverre Rabbelier <srabbelier@gmail.com>
Date: Feb 19, 2010, 07:49 UTC
Message-ID: <fabb9a1e1002182349h923d4acv55d9a41a249d4f51@mail.gmail.com>
In-Reply-To: <4B7E3856.3080609@gmail.com>

Heya,

[please do not cull the cc list, it is considered rude on this list]

On Fri, Feb 19, 2010 at 08:05, Gabriel Filion <lelutin@gmail.com> wrote:

Show 9 quoted lines

> On 2010-02-18 13:37, Sverre Rabbelier wrote:
>> If you're interested have a look at
>> Documentation/git-remote-helpers.txt, and read the mailing list
>> archives on the subject.
>
> The Documentation/git-remote-helpers.txt file wasn't really of much help
> .. It really only barely scratches the subject, but it does not mention
> how remote-helpers really work internally (e.g. how do they get called:
> based on protocol used in URLs?)

True, I hope to document that better when I submit my git-remote-hg implementation.

> I'm still trying to dig up information about how to actually build, test
> and use a remote helper. I'll probably be reading code for examples.

Perhaps you could benefit from looking at my git-remote-hg code so far, I'll put it up on github [0] today as 'remote-hg'. If you're too soon you'll see commit 21215675c as the head, which isn't that useful, in that case just look again later :P.

Show 5 quoted lines

> Another detail hit me: external interaction in git seems like it's
> almost always using librairies. If I'm not mistaken, bzr does not have a
> separate library. So to have access to it's API, you need bzr to be
> installed. This is why the current git-bzr script is using bzr +
> bzr-fastimport plugin to do the job.

That is part of the reason why the remote-helpers are implemented as separate programs, so that whatever backend they interact with does not become a dependency of git itself.

> Is it normal / acceptable for a remote helper to have such dependancies?

Yes, git-remote-hg depends on mercurial being installed.

> And for the language used, maybe python could be logical if I can bind
> directly to Bazaar's API. Tell me what you think about this.

Yup, that would make sense, you could put your code in /git_remote_helpers/bzr/, alongside with the to-be-added /git_remote_helpers/hg and /git_remote_helpers/cvs.

[0] http://github.com/SRabbelier/git

-- 
Cheers,

Sverre Rabbelier