GNU bug report logs - #76141
guix locate --clear tries to write to readonly database

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: yelninei <at> tutamail.com
To: bug-guix <at> gnu.org
Subject: guix locate --clear tries to write to readonly database
Date: Sat, 8 Feb 2025 09:19:32 +0100 (CET)

When a system wide database exists (at /var/cache/guix/locate/db.sqlite) 'guix locate --clear' invoked as an unprivileged user tries to write to it and fail.
Steps to reproduce:
- sudo mkdir -p /var/cache/guix/locate
- sudo touch /var/cache/guix/locate/db.sqlite
- guix locate --clear
Observe the exception:
ice-9/boot-9.scm:1685:16: In procedure raise-exception:
Throw to key `sqlite-error' with args `(sqlite-exec 8 "attempt to write a readonly database")'.

I think the issue is that the 'suitable-database' procedure does not get passed the CREATE? 
parameter (indicating that we want a writable db)  when '--clear'  is given.

I discovered this because this caused the guix-locate.sh test to fail in an normal checkout. 
The db in /var/cache/guix/locate/db.sqlite is created and updated via the package-database-service-type.

Thanks.

Message #8 received at 76141 <at> debbugs.gnu.org (full text, mbox):

From: yelninei <at> tutamail.com
To: 76141 <76141 <at> debbugs.gnu.org>
Cc: Josselin Poiret <dev <at> jpoiret.xyz>,
 Simon Tournier <zimon.toutoune <at> gmail.com>, Mathieu Othacehe <othacehe <at> gnu.org>,
 Ludovic Courtès <ludo <at> gnu.org>,
 Tobias Geerinckx-Rice <me <at> tobias.gr>, Christopher Baines <guix <at> cbaines.net>
Date: Sun, 13 Apr 2025 11:26:23 +0200 (CEST)

[Message part 1 (text/plain, inline)]

Something like this fixes my issue.

[0001-locate-Request-writable-db-for-clear.patch (text/x-patch, attachment)]

Message #13 received at 76141-done <at> debbugs.gnu.org (full text, mbox):

From: Ludovic Courtès <ludo <at> gnu.org>
To: yelninei <at> tutamail.com
Cc: Josselin Poiret <dev <at> jpoiret.xyz>,
 Simon Tournier <zimon.toutoune <at> gmail.com>, Mathieu Othacehe <othacehe <at> gnu.org>,
 Tobias Geerinckx-Rice <me <at> tobias.gr>, 76141 <76141-done <at> debbugs.gnu.org>,
 Christopher Baines <guix <at> cbaines.net>
Subject: Re: none
Date: Tue, 15 Apr 2025 15:10:15 +0200

yelninei <at> tutamail.com writes:

> From c6333e210b6fd38b710800d9fc9b898f9b4409e2 Mon Sep 17 00:00:00 2001
> Message-ID: <c6333e210b6fd38b710800d9fc9b898f9b4409e2.1744535776.git.yelninei <at> tutamail.com>
> From: Yelninei <yelninei <at> tutamail.com>
> Date: Sun, 13 Apr 2025 09:08:39 +0000
> Subject: [PATCH] locate: Request writable db for --clear.
> 
> Fixes https://issues.guix.gnu.org/76141.
> 
> * guix/scripts/locate.scm (guix-locate): Use writable db when --clear is given.
> 
> Change-Id: I2e4e945cef022b08dd6af4c252e67c2a4d5bf38c

Applied, thanks!

Ludo’.

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