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From: Jeff King <peff@peff.net>
To: "René Scharfe" <l.s.r@web.de>
Cc: git@vger.kernel.org
Subject: Re: [PATCH 0/11] renaming argv_array
Date: Wed, 12 Aug 2020 15:57:03 -0400	[thread overview]
Message-ID: <20200812195703.GA1340519@coredump.intra.peff.net> (raw)
In-Reply-To: <13d0b147-3c62-5d73-630e-2305c08c3ab1@web.de>

On Wed, Aug 12, 2020 at 08:18:33PM +0200, René Scharfe wrote:

> Am 12.08.20 um 19:08 schrieb Jeff King:
> > Yeah, I've had various issues with the packaging. For a long time they
> > had 1.0.7 in experimental, but with no python support. I wonder if it's
> > worth starting to use python scriptlets in our coccinelle rules, as
> > described in 4d168e742a (coccinelle: use <...> for function exclusion,
> > 2018-08-28). They're faster and IMHO easier to understand.
> 
> The idea to use Python as a faster alternative to anything makes me
> a bit uneasy.  That can't be right. ;-)

Well, when you're comparing it to some exponential algorithm with the
other technique, even a scripted language can do well. :)

I definitely remember getting big speedups back at the time of that
commit. But applying the patch below, building object_id.cocci.patch
actually gets a few seconds slower. So maybe something changed between
the various coccinelle versions. At any rate, it doesn't seem worth
pursuing further.

> > Of course I tried it out and got some inscrutable errors:
> >
> >   SPATCH contrib/coccinelle/object_id.cocci
> >   init_defs_builtins: /usr/bin/../lib/coccinelle/standard.h
> >   Python path configuration:
> >     PYTHONHOME = '/lib/x86_64-linux-gnu/..'
> 
> This looks bogus.  Can you try to unset this environment variable?
> Or set it to "/usr"?

It's not set in my environment. However, I was able to solve it by
fiddling with my system python packages (I'm not sure of the exact
cause; it was a case of corrected-while-testing).

-Peff

      reply	other threads:[~2020-08-12 19:57 UTC|newest]

Thread overview: 46+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-28 20:21 Jeff King
2020-07-28 20:21 ` [PATCH 01/11] argv-array: use size_t for count and alloc Jeff King
2020-07-28 20:23 ` [PATCH 02/11] argv-array: rename to strvec Jeff King
2020-07-28 20:23 ` [PATCH 03/11] strvec: rename files from argv-array " Jeff King
2020-07-28 20:24 ` [PATCH 04/11] quote: rename sq_dequote_to_argv_array to mention strvec Jeff King
2020-07-28 20:24 ` [PATCH 05/11] strvec: convert builtin/ callers away from argv_array name Jeff King
2020-07-28 20:24 ` [PATCH 06/11] strvec: convert more " Jeff King
2020-07-28 20:25 ` [PATCH 07/11] strvec: convert remaining " Jeff King
2020-07-28 20:26 ` [PATCH 08/11] strvec: fix indentation in renamed calls Jeff King
2020-07-28 22:43   ` Jacob Keller
2020-07-28 23:31     ` Junio C Hamano
2020-07-28 20:26 ` [PATCH 09/11] strvec: update documention to avoid argv_array Jeff King
2020-07-28 20:27 ` [PATCH 10/11] strvec: drop argv_array compatibility layer Jeff King
2020-07-28 22:23   ` Junio C Hamano
2020-07-29  0:04     ` Jeff King
2020-07-29  0:37       ` Jeff King
2020-07-29  0:40         ` Jeff King
2020-07-29  0:47           ` Junio C Hamano
2020-07-29 16:54             ` Derrick Stolee
2020-07-29  0:44         ` Junio C Hamano
2020-07-29 16:22           ` Jeff King
2020-07-28 20:28 ` [PATCH 11/11] strvec: rename struct fields Jeff King
2020-07-28 21:16   ` Junio C Hamano
2020-07-28 21:18     ` Junio C Hamano
2020-07-29  6:55       ` Christian Couder
2020-07-29 16:34         ` Jeff King
2020-07-29 18:03           ` Junio C Hamano
2020-07-28 21:20     ` Jeff King
2020-07-28 22:45 ` [PATCH 0/11] renaming argv_array Jacob Keller
2020-07-29  0:06   ` Jeff King
2020-07-29  6:15 ` Christian Couder
2020-07-29  6:19   ` Christian Couder
2020-07-29 13:32   ` Eric Sunshine
2020-07-29 16:33   ` Jeff King
2020-08-11 16:08 ` René Scharfe
2020-08-11 18:28   ` Taylor Blau
2020-08-11 19:00   ` Junio C Hamano
2020-08-11 20:39     ` Jacob Keller
2020-08-11 21:03       ` Junio C Hamano
2020-08-12 12:42     ` Johannes Schindelin
2020-08-12 15:06   ` Jeff King
2020-08-12 15:10     ` Jeff King
2020-08-12 16:23       ` René Scharfe
2020-08-12 17:08         ` Jeff King
2020-08-12 18:18           ` René Scharfe
2020-08-12 19:57             ` Jeff King [this message]

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