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.

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