GNU logs - #74484, boring messages

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Subject: bug#74484: reader syntax trouble across socket
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Date: Fri, 22 Nov 2024 11:51:25 -0900
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Hi, I'm trying to troubleshoot some bugs in the venerable emacs-guix packag=
e, which you've probably heard of. In its default configuration, emacs-guix=
 uses geiser to set up one Guile REPL (*Guix REPL*) to handle various guix =
operations, and tells it to --listen on a domain socket; and then it uses s=
ome comint functions to connect to the domain socket, to provide another Gu=
ile REPL (*Guix Internal REPL*) which it uses for various other guix operat=
ions while the main REPL is busy.

In guix bug#73462, I figured out that the bug was caused by, for some unkno=
wn reason, (guix gexp) reader syntax was working in the main REPL (*Guix RE=
PL*) but not in the REPL that was over the socket (*Guix Internal REPL*). A=
 work around is available, which is to run an extra ",re (guix gexp)" in th=
e internal REPL buffer, and then after that it works fine, but I don't unde=
rstand why that should be necessary. Can somebody help me figure if this is=
 some kind of bug in Guile, or a different issue...?

This can be reproduced this one my system command line with the following c=
ommands. Of course, you would need to adjust for your own paths. On one ter=
minal:

``` shell
christopher@theoden ~$ /gnu/store/g1fhmjs2mh8a0djfnyaha49ihb5cmkas-profile/=
bin/guile --no-auto-compile -L /home/christopher/Repos/emacs-guix/scheme -C=
 /home/christopher/Repos/emacs-guix/scheme -L /home/christopher/.config/gui=
x/current/share/guile/site/3.0 -C /home/christopher/.config/guix/current/li=
b/guile/3.0/site-ccache --listen=3D/tmp/test-socket
```

Then on another terminal:

```shell
christopher@theoden /gnu/store/pg7s74p1p3bf2k848xy4j0x8dcqv248l-netcat-open=
bsd-1.219-1/bin$ ./nc -U /tmp/test-socket
GNU Guile 3.0.9
Copyright (C) 1995-2023 Free Software Foundation, Inc.

Guile comes with ABSOLUTELY NO WARRANTY; for details type `,show w'.
This program is free software, and you are welcome to redistribute it
under certain conditions; type `,show c' for details.

Enter `,help' for help.
scheme@(guile-user)> ,m (emacs-guix)
scheme@(emacs-guix)> (guix-command "pull")
Updating channel 'guix' from Git repository at 'https://git.savannah.gnu.or=
g/git/guix.git'...
Building from this channel:
  guix      https://git.savannah.gnu.org/git/guix.git	8a7bd21
ice-9/boot-9.scm:1685:16: In procedure raise-exception:
/gnu/store/hhnw8gr26smc267yy2hzk57p4b0g6iyb-guix-8a7bd21/build-aux/build-se=
lf.scm:84:18: Unknown # object: "#~"
```

But the same command, which is (guix-command "pull") works fine in the firs=
t terminal.

Some system information:

``` guix describe
Generation 153	Nov 20 2024 09:29:24	(current)
  guix 804f8b2
    repository URL: https://git.savannah.gnu.org/git/guix.git
    branch: master
    commit: 804f8b2094f3214c5b129047c1b18a7779720496
```

``` guile --version
guile (GNU Guile) 3.0.9
```

Regarding the sockets issue, there is another bug I have found related to t=
he use of the socket based REPL, described in bug#74250, but that one is mo=
re difficult to point to a specific cause or try to blame on Guile.

--=20
=F0=9F=93=9B Christopher Howard
=F0=9F=9A=80 gemini://gem.librehacker.com
=F0=9F=8C=90 http://gem.librehacker.com

=D7=91=D7=A8=D7=90=D7=A9=D7=99=D7=AA =D7=91=D7=A8=D7=90 =D7=90=D7=9C=D7=94=
=D7=99=D7=9D =D7=90=D7=AA =D7=94=D7=A9=D7=9E=D7=99=D7=9D =D7=95=D7=90=D7=AA=
 =D7=94=D7=90=D7=A8=D7=A5

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From: help-debbugs@HIDDEN (GNU bug Tracking System)
To: Christopher Howard <christopher@HIDDEN>
Subject: bug#74484: Acknowledgement (reader syntax trouble across socket)
Message-ID: <handler.74484.B.17323086951581.ack <at> debbugs.gnu.org>
References: <87a5druh4i.fsf@HIDDEN>
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X-Gnu-PR-Package: guile
Reply-To: 74484 <at> debbugs.gnu.org
Date: Fri, 22 Nov 2024 20:52:02 +0000

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--=20
74484: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=3D74484
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Message sent to bug-guile@HIDDEN:

Subject: bug#74484: reader syntax trouble across socket
Resent-From: Ludovic =?UTF-8?Q?Court=C3=A8s?= <ludo@HIDDEN>
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To: Christopher Howard <christopher@HIDDEN>
Cc: 74484 <at> debbugs.gnu.org
From: Ludovic =?UTF-8?Q?Court=C3=A8s?= <ludo@HIDDEN>
In-Reply-To: <87a5druh4i.fsf@HIDDEN> (Christopher Howard's message of
 "Fri, 22 Nov 2024 11:51:25 -0900")
References: <87a5druh4i.fsf@HIDDEN>
Date: Mon, 09 Dec 2024 18:08:18 +0100
Message-ID: <8734iwn5rx.fsf@HIDDEN>
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Hi Christopher,

Christopher Howard <christopher@HIDDEN> scribans:

> scheme@(guile-user)> ,m (emacs-guix)
> scheme@(emacs-guix)> (guix-command "pull")
> Updating channel 'guix' from Git repository at 'https://git.savannah.gnu.=
org/git/guix.git'...
> Building from this channel:
>   guix      https://git.savannah.gnu.org/git/guix.git	8a7bd21
> ice-9/boot-9.scm:1685:16: In procedure raise-exception:
> /gnu/store/hhnw8gr26smc267yy2hzk57p4b0g6iyb-guix-8a7bd21/build-aux/build-=
self.scm:84:18: Unknown # object: "#~"

The read syntax for #~ (gexp) is installed by loading the (guix gexp)
module or simply the (guix) module, which loads (guix gexp).

It seems that somehow Emacs-Guix does not load (guix gexp) upfront.
It=E2=80=99s fishy though because (guix scripts pull) definitely loads (guix
gexp), directly and indirectly.

Ludo=E2=80=99.

Last modified: Sun, 12 Jan 2025 05:45:02 UTC

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