From: Martin Fick <mfick@codeaurora.org>
To: Matthieu Moy <Matthieu.Moy@grenoble-inp.fr>
Cc: "Antoine Pelisse" <apelisse@gmail.com>,
"Stefan Beller" <stefanbeller@googlemail.com>,
git <git@vger.kernel.org>,
"Nguyễn Thái Ngọc Duy" <pclouds@gmail.com>,
iveqy@iveqy.com, "Junio C Hamano" <gitster@pobox.com>
Subject: Re: [RFC PATCH] repack: rewrite the shell script in C.
Date: Wed, 14 Aug 2013 18:26:44 -0600 [thread overview]
Message-ID: <201308141826.44898.mfick@codeaurora.org> (raw)
In-Reply-To: <201308141725.43127.mfick@codeaurora.org>
On Wednesday, August 14, 2013 05:25:42 pm Martin Fick wrote:
> On Wednesday, August 14, 2013 04:51:14 pm Matthieu Moy
>
> wrote:
> > Antoine Pelisse <apelisse@gmail.com> writes:
> > > On Wed, Aug 14, 2013 at 6:27 PM, Stefan Beller
> > >
> > > <stefanbeller@googlemail.com> wrote:
> > >> builtin/repack.c | 410
> > >> +++++++++++++++++++++++++++++++++++++++++
> > >> contrib/examples/git-repack.sh | 194
> > >> +++++++++++++++++++ git-repack.sh
> > >> | 194 -------------------
> > >
> > > I'm still not sure I understand the trade-off here.
> > >
> > > Most of what git-repack does is compute some file
> > > paths, (re)move those files and call
> > > git-pack-objects, and potentially git-prune-packed
> > > and
> > > git-update-server-info.
> > > Maybe I'm wrong, but I have the feeling that the
> > > correct tool for that is Shell, rather than C (and I
> > > think the code looks less intuitive in C for that
> > > matter).
> >
> > There's a real problem with git-repack being shell (I
> > already mentionned it in the previous thread about the
> > rewrite): it creates dependencies on a few external
> > binaries, and a restricted server may not have them. I
> > have this issue on a fusionforge server where Git repos
> > are accessed in a chroot with very few commands
> > available: everything went OK until the first project
> > grew enough to require a "git gc --auto", and then it
> > stopped accepting pushes for that project.
> >
> > I tracked down the origin of the problem and the
> > sysadmins disabled auto-gc, but that's not a very
> > satisfactory solution.
> >
> > C is rather painfull to write, but as a sysadmin, drop
> > the binary on your server and it just works. That's
> > really important. AFAIK, git-repack is the only
> > remaining shell part on the server, and it's rather
> > small. I'd really love to see it disapear.
>
> I didn't review the proposed C version, but how was it
> planning on removing the dependencies on these binaries?
> Was it planning to reimplement mv, cp, find? Were there
> other binaries that were problematic that you were
> thinking of? From what I can tell it also uses test,
> mkdir, sed, chmod and naturally sh, that is 8
> dependencies. If those can't be depended upon for
> existing, perhaps git should just consider bundling
> busy-box or some other limited shell utils, or yikes!,
> even its own reimplementation of these instead of
> implementing these independently inside other git
> programs?
Sorry I didn't comprehend your email fully when I first read
it. I guess that wouldn't really solve your problem unless
someone had a way of bundling an sh program and whatever it
calls inside a single executable? :(
I can see why you would want what you want,
-Martin
--
The Qualcomm Innovation Center, Inc. is a member of Code
Aurora Forum, hosted by The Linux Foundation
next prev parent reply other threads:[~2013-08-15 0:26 UTC|newest]
Thread overview: 72+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-13 19:23 [PATCH] Rewriting git-repack in C Stefan Beller
2013-08-13 19:23 ` [PATCH] repack: rewrite the shell script " Stefan Beller
2013-08-14 7:26 ` Matthieu Moy
2013-08-14 16:26 ` Stefan Beller
2013-08-14 16:27 ` [RFC PATCH] " Stefan Beller
2013-08-14 16:49 ` Antoine Pelisse
2013-08-14 17:04 ` Stefan Beller
2013-08-14 17:19 ` Jeff King
2013-08-14 17:25 ` Martin Fick
2013-08-14 22:16 ` Stefan Beller
2013-08-14 22:28 ` Martin Fick
2013-08-14 22:53 ` Junio C Hamano
2013-08-14 23:28 ` Martin Fick
2013-08-15 17:15 ` Junio C Hamano
2013-08-16 0:12 ` [RFC PATCHv2] " Stefan Beller
2013-08-17 13:34 ` René Scharfe
2013-08-17 19:18 ` Kyle J. McKay
2013-08-18 14:34 ` Stefan Beller
2013-08-18 14:36 ` [RFC PATCHv3] " Stefan Beller
2013-08-18 15:41 ` Kyle J. McKay
2013-08-18 16:44 ` René Scharfe
2013-08-18 22:26 ` [RFC PATCHv4] " Stefan Beller
2013-08-19 23:23 ` Stefan Beller
2013-08-20 13:31 ` Johannes Sixt
2013-08-20 15:08 ` Stefan Beller
2013-08-20 18:38 ` Johannes Sixt
2013-08-20 18:57 ` René Scharfe
2013-08-20 22:36 ` Stefan Beller
2013-08-20 22:38 ` [PATCH] " Stefan Beller
2013-08-21 8:25 ` Jonathan Nieder
2013-08-21 10:37 ` Stefan Beller
2013-08-21 17:25 ` Stefan Beller
2013-08-21 17:28 ` [RFC PATCHv6 1/2] " Stefan Beller
2013-08-21 17:28 ` [RFC PATCHv6 2/2] repack: retain the return value of pack-objects Stefan Beller
2013-08-21 20:56 ` [RFC PATCHv6 1/2] repack: rewrite the shell script in C Junio C Hamano
2013-08-21 21:52 ` Matthieu Moy
2013-08-21 22:15 ` Stefan Beller
2013-08-21 22:50 ` Junio C Hamano
2013-08-21 22:57 ` Stefan Beller
2013-08-22 10:46 ` Johannes Sixt
2013-08-22 21:03 ` Jonathan Nieder
2013-08-21 8:49 ` [PATCH] " Matthieu Moy
2013-08-21 12:47 ` Stefan Beller
2013-08-21 13:05 ` Matthieu Moy
2013-08-21 12:53 ` Stefan Beller
2013-08-21 13:07 ` Matthieu Moy
2013-08-22 10:46 ` Johannes Sixt
2013-08-22 10:46 ` Johannes Sixt
2013-08-22 20:06 ` [PATCH] repack: rewrite the shell script in C (squashing proposal) Stefan Beller
2013-08-22 20:31 ` Junio C Hamano
2013-08-20 22:46 ` [RFC PATCHv4] repack: rewrite the shell script in C Jonathan Nieder
2013-08-21 9:20 ` Johannes Sixt
2013-08-20 21:24 ` Stefan Beller
2013-08-20 21:34 ` Jonathan Nieder
2013-08-20 21:40 ` Dokumenting api-paths.txt Stefan Beller
2013-08-20 21:59 ` Jonathan Nieder
2013-08-21 22:43 ` Stefan Beller
2013-08-22 17:29 ` Junio C Hamano
2013-08-14 22:51 ` [RFC PATCH] repack: rewrite the shell script in C Junio C Hamano
2013-08-14 22:59 ` Matthieu Moy
2013-08-15 7:47 ` Stefan Beller
2013-08-15 4:15 ` Duy Nguyen
2013-08-14 17:26 ` Junio C Hamano
2013-08-14 22:51 ` Matthieu Moy
2013-08-14 23:25 ` Martin Fick
2013-08-15 0:26 ` Martin Fick [this message]
2013-08-15 7:46 ` Stefan Beller
2013-08-15 15:04 ` Martin Fick
2013-08-15 4:20 ` Duy Nguyen
2013-08-14 17:04 ` Junio C Hamano
2013-08-15 7:53 ` Stefan Beller
2013-08-14 7:12 ` [PATCH] Rewriting git-repack " Matthieu Moy
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