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From: Zac Medico <zmedico@gentoo.org>
To: gentoo-dev@lists.gentoo.org
Subject: Re: [gentoo-dev] RFD: EAPI specification in ebuilds
Date: Fri, 09 Mar 2012 07:41:09 -0800	[thread overview]
Message-ID: <4F5A2495.4060305@gentoo.org> (raw)
In-Reply-To: <4F5A2001.30309@orlitzky.com>

On 03/09/2012 07:21 AM, Michael Orlitzky wrote:
> The advantage that the eapi function has over a comment is that it's not
> magic -- it's just normal bash syntax. So we've addressed that issue at
> a small performance cost (we're really only sourcing the ebuild up to
> 'exit').

Also consider the case where a user syncs after not having updated for a
couple of months, and the tree contains some ebuilds with EAPIs that are
not supported by the currently installed package manager.

In this case, when resolving dependencies and filtering ebuilds based on
whether or not their EAPI is supported, spawning bash once per ebuild is
much more costly than the alternatives.
-- 
Thanks,
Zac



  reply	other threads:[~2012-03-09 15:42 UTC|newest]

Thread overview: 125+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-03-07 20:41 [gentoo-dev] RFD: EAPI specification in ebuilds Ulrich Mueller
2012-03-07 20:44 ` Ciaran McCreesh
2012-03-07 21:07 ` Alexis Ballier
2012-03-07 22:04   ` David Leverton
2012-03-07 22:14 ` Michael Orlitzky
2012-03-08  0:17   ` Ulrich Mueller
2012-03-08 12:03   ` Michał Górny
2012-03-08 15:56     ` Michael Orlitzky
2012-03-08 17:28       ` Michał Górny
2012-03-08 17:48         ` Michael Orlitzky
2012-03-08 17:53           ` Ciaran McCreesh
2012-03-08 18:37             ` Michael Orlitzky
2012-03-08 18:48               ` Ciaran McCreesh
2012-03-08 21:35                 ` Michael Orlitzky
2012-03-08 23:31                   ` Alec Warner
2012-03-09  3:05                     ` Michael Orlitzky
2012-03-09  5:04                   ` Michał Górny
2012-03-09  5:35                     ` Michael Orlitzky
2012-03-09  5:51                       ` Zac Medico
2012-03-09 14:42                         ` Michael Orlitzky
2012-03-09 15:05                           ` Zac Medico
2012-03-09 15:21                             ` Michael Orlitzky
2012-03-09 15:41                               ` Zac Medico [this message]
2012-03-09 15:51                                 ` Alexis Ballier
2012-03-09 15:58                                   ` Zac Medico
2012-03-09 16:49                                     ` Michael Orlitzky
2012-03-09 16:57                                       ` Zac Medico
2012-03-09 19:20                                       ` Ciaran McCreesh
2012-03-10 16:06                                         ` Zac Medico
2012-03-12  1:55                                           ` Brian Harring
2012-03-12  4:08                                             ` Zac Medico
2012-03-12  8:36                                               ` Brian Harring
2012-03-12 15:35                                                 ` Ciaran McCreesh
2012-03-12 16:05                                                 ` Zac Medico
2012-03-12 16:12                                                   ` Ciaran McCreesh
2012-03-12 16:28                                                     ` Zac Medico
2012-03-14  2:01                                                   ` Brian Harring
2012-03-14  2:16                                                     ` Zac Medico
2012-03-09 15:52                                 ` Ian Stakenvicius
2012-03-09 16:15                                   ` Zac Medico
2012-03-09 16:33                                     ` Eray Aslan
2012-03-09 16:43                                       ` Zac Medico
2012-03-09 16:29                       ` Michał Górny
2012-03-09 16:57                         ` Michael Orlitzky
2012-03-09 17:11                           ` Ulrich Mueller
2012-03-09 17:31                             ` Michael Orlitzky
2012-03-09 17:47                               ` Zac Medico
2012-03-09 18:03                                 ` Michael Orlitzky
2012-03-09 19:08                                 ` Rich Freeman
2012-03-12  2:03                                 ` Brian Harring
2012-03-12  2:20                                   ` Rich Freeman
2012-03-12  2:24                                     ` Alec Warner
2012-03-12  6:57                                       ` Kent Fredric
2012-03-12  6:50                                     ` Kent Fredric
2012-03-12  7:08                                       ` Zac Medico
2012-03-12  7:39                                         ` Kent Fredric
2012-03-12  8:27                                         ` Michał Górny
2012-03-12  8:30                                           ` Ciaran McCreesh
2012-03-12  9:09                                             ` Michał Górny
2012-03-12  9:16                                               ` Kent Fredric
2012-03-12  9:48                                                 ` Ulrich Mueller
2012-03-12 10:12                                                   ` Kent Fredric
2012-03-12 15:20                                                     ` Rich Freeman
2012-03-12 17:01                                                 ` Zac Medico
2012-03-12 17:30                                                   ` Rich Freeman
2012-03-12 17:46                                                     ` Zac Medico
2012-03-12 19:20                                                       ` Rich Freeman
2012-03-12  8:39                                           ` Kent Fredric
2012-03-12  9:10                                             ` Michał Górny
2012-03-12  3:55                                   ` Zac Medico
2012-03-09 17:52                               ` Michał Górny
2012-03-12  1:00                                 ` Brian Harring
2012-03-09 18:02                               ` James Broadhead
2012-03-09 18:24                                 ` Alexis Ballier
2012-03-09 18:29                                   ` Zac Medico
2012-03-09 18:33                                 ` Michael Orlitzky
2012-03-09 18:56                                   ` Zac Medico
2012-03-09 19:23                                     ` Ciaran McCreesh
2012-03-09 20:09                                     ` Michael Orlitzky
2012-03-19  1:12                 ` [gentoo-dev] " Steven J Long
2012-03-19  1:36                   ` Kent Fredric
2012-03-19  3:21                     ` Brian Harring
2012-03-24 13:24                     ` [gentoo-dev] " Steven J Long
2012-03-07 22:36 ` [gentoo-dev] " Alexandre Rostovtsev
2012-03-08  2:22   ` Jeroen Roovers
2012-03-08 16:14     ` [gentoo-dev] Ebb (eb) was: " Todd Goodman
2012-03-08  4:12 ` [gentoo-dev] " Alec Warner
2012-03-08  7:27   ` Ulrich Mueller
2012-03-08  8:13     ` Alec Warner
2012-03-08 15:27       ` Zac Medico
2012-03-08 16:11         ` David Leverton
2012-03-08 16:21           ` Zac Medico
2012-03-08 16:29             ` Ciaran McCreesh
2012-03-08 16:50               ` Zac Medico
2012-03-08 16:59               ` Alexandre Rostovtsev
2012-03-08 17:03                 ` Ciaran McCreesh
2012-03-08 19:17                   ` Ulrich Mueller
2012-03-08 19:31                     ` Ciaran McCreesh
2012-03-08 19:48                       ` Alexis Ballier
2012-03-08  9:42     ` Marc Schiffbauer
2012-03-08 16:30       ` Zac Medico
2012-03-08 16:35         ` Ciaran McCreesh
2012-03-08 17:07           ` Zac Medico
2012-03-08 17:14             ` Ciaran McCreesh
2012-03-08 17:30               ` Jeroen Roovers
2012-03-08 17:37                 ` Ciaran McCreesh
2012-03-10  1:06                 ` Kent Fredric
2012-03-10 13:53                   ` Ciaran McCreesh
2012-03-09 11:28         ` Marc Schiffbauer
2012-03-08 12:06   ` Michał Górny
2012-03-08 15:58 ` Michael Orlitzky
2012-03-08 16:51   ` Ulrich Mueller
2012-03-08 17:03     ` Rich Freeman
2012-03-08 16:47 ` Mike Gilbert
2012-03-08 17:52 ` Michał Górny
2012-03-08 17:56   ` Ciaran McCreesh
2012-03-08 18:22   ` Zac Medico
2012-03-08 19:04   ` Ulrich Mueller
2012-03-08 19:38     ` Alexis Ballier
2012-03-09  0:50 ` Walter Dnes
2012-03-18  7:23 ` Ralph Sennhauser
2012-03-18 11:18   ` Rich Freeman
2012-03-18 11:27   ` Ulrich Mueller
2012-04-12 19:53 ` [gentoo-dev] " Ulrich Mueller
2012-04-12 20:19   ` Mike Frysinger

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