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From: "Ludovic Courtès" <ludo@gnu.org>
To: Pierre Neidhardt <mail@ambrevar.xyz>
Cc: 33848@debbugs.gnu.org
Subject: bug#33848: Store references in SBCL-compiled code are "invisible"
Date: Thu, 27 Dec 2018 22:54:36 +0100	[thread overview]
Message-ID: <87zhsq8wkj.fsf@gnu.org> (raw)
In-Reply-To: <87muoqhk62.fsf@ambrevar.xyz> (Pierre Neidhardt's message of "Thu, 27 Dec 2018 19:57:41 +0100")

Pierre Neidhardt <mail@ambrevar.xyz> skribis:

>> Every file in the store is properly scanned for references.  It’s just
>> that users cannot create top-level items with a non-ASCII file name.
>
> So if '/gnu/store/...-foo/á' is stored as UTF-8 in a binary, then it will be
> found?  Is it because the filesystem encoding is also UTF-8 and Guix scans over
> byte arrays?

The reference scanner, currently written in C++, traverses whole
directory trees.  Being C++ it treats file names as byte arrays so it
doesn’t matter what the file name encoding is.

Note also that the reference scanner only looks for “xyz…-foo”; what
comes before and after doesn’t matter.  So for example if you have
“/gnu/store/xyz…-foo/à”, what’s important is the “xyz…-foo” bit.

This is all happening in libstore/references.cc (which is surprisingly
small) and in (guix build graft) for the grafting part, which Mark wrote
a while back.

HTH,
Ludo’.

  reply	other threads:[~2018-12-27 21:57 UTC|newest]

Thread overview: 63+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-12-23 14:19 bug#33848: Store references in SBCL-compiled code are "invisible" Ludovic Courtès
2018-12-23 15:05 ` Pierre Neidhardt
2018-12-24 14:57   ` Ludovic Courtès
2018-12-23 16:45 ` Mark H Weaver
2018-12-23 17:32   ` Ludovic Courtès
2018-12-23 22:01     ` Pierre Neidhardt
2018-12-24 15:06       ` Ludovic Courtès
2018-12-24 17:08         ` Pierre Neidhardt
2018-12-26 16:07           ` Ludovic Courtès
2018-12-24 18:12         ` Mark H Weaver
2018-12-24 23:58           ` Pierre Neidhardt
2018-12-26 16:14           ` Ludovic Courtès
2018-12-27 10:37             ` Pierre Neidhardt
2018-12-27 14:03               ` Mark H Weaver
2018-12-27 14:45                 ` Ludovic Courtès
2018-12-27 15:02                   ` Pierre Neidhardt
2018-12-27 16:15                     ` Pierre Neidhardt
2018-12-27 17:03                     ` Ludovic Courtès
2018-12-27 18:57                       ` Pierre Neidhardt
2018-12-27 21:54                         ` Ludovic Courtès [this message]
2018-12-27 22:05                           ` Pierre Neidhardt
2018-12-27 22:59                             ` Ludovic Courtès
2018-12-28  7:47                               ` Pierre Neidhardt
2021-03-30 10:15                                 ` Pierre Neidhardt
2021-03-30 20:09                                   ` Ludovic Courtès
2021-03-31  7:10                                     ` Pierre Neidhardt
2021-03-31 16:12                                     ` Pierre Neidhardt
2021-03-31 20:42                                       ` Ludovic Courtès
2021-03-31 20:57                                         ` Pierre Neidhardt
2021-04-01 17:23                                         ` Mark H Weaver
2021-04-02 15:13                                           ` Ludovic Courtès
2021-04-01  6:03                                       ` Mark H Weaver
2021-04-01  7:13                                         ` Pierre Neidhardt
2021-04-01  7:57                                         ` Ludovic Courtès
2021-04-01  8:48                                           ` Pierre Neidhardt
2021-04-01  9:07                                           ` Guillaume Le Vaillant
2021-04-01  9:13                                             ` Pierre Neidhardt
2021-04-01  9:52                                               ` Guillaume Le Vaillant
2021-04-01 10:06                                                 ` Pierre Neidhardt
2021-04-01 10:07                                                 ` Pierre Neidhardt
2021-04-01 15:24                                                   ` Ludovic Courtès
2021-04-01 17:33                                                   ` Mark H Weaver
2021-04-02 22:46                                                     ` Mark H Weaver
2021-04-03  6:51                                                       ` Pierre Neidhardt
2021-04-03 20:10                                                         ` Mark H Weaver
2021-04-05 19:45                                                           ` Ludovic Courtès
2021-04-05 23:04                                                             ` Mark H Weaver
2021-04-06  8:16                                                               ` Ludovic Courtès
2021-04-06  8:23                                                                 ` Pierre Neidhardt
2021-04-30 20:03                                                                   ` Mark H Weaver
2021-05-01  9:22                                                                     ` Pierre Neidhardt
2021-05-11  8:46                                                                     ` Ludovic Courtès
2021-04-06 17:23                                                             ` Leo Famulari
2021-04-06 23:21                                                               ` Mark H Weaver
2021-04-06 11:19                                                       ` Mark H Weaver
2021-04-08 10:13                                                         ` Ludovic Courtès
2021-04-13 20:06                                                           ` Mark H Weaver
2021-04-14 10:55                                                             ` Ludovic Courtès
2021-04-14 22:37                                                               ` Leo Famulari
2021-04-15  7:26                                                               ` Mark H Weaver
2021-04-16  9:44                                                                 ` Pierre Neidhardt
2018-12-27 13:52           ` Danny Milosavljevic
2018-12-27 14:29             ` Mark H Weaver

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