guix fails to print friendly help message for unknown command

See below

~ >>> guix --version

guix (GNU Guix) e57b978fc0a6b6298b96c68de4769655d793c7b9

Copyright (C) 2021 the Guix authors

License GPLv3+: GNU GPL version 3 or later http://gnu.org/licenses/gpl.html

This is free software: you are free to change and redistribute it.

There is NO WARRANTY, to the extent permitted by law.

~ >>> guix test

Backtrace:

6 (primitive-load "/home/imran/.config/guix/current/bin/g…")

In guix/ui.scm:

2126:2 5 (run-guix-command test)

In ice-9/boot-9.scm:

1731:15 4 (with-exception-handler #<procedure 7f74aeb360c0 at ic…> …)

In guix/ui.scm:

2137:15 3 (_)

In ice-9/boot-9.scm:

2806:4 2 (save-module-excursion #<procedure 7f74aeb4aa20 at ice-…>)

4360:9 1 (_)

In unknown file:

0 (string-prefix? "/" #f #<undefined> #<undefined> #<und…> …)

ERROR: In procedure string-prefix?:

In procedure string-prefix?: Wrong type argument in position 2 (expecting string): #f

It should be printing a helpful message saying "guix: test: command not found" followed by show-guix-usage but does not.

Hi,

On Thu, 7 Jan 2021 at 10:12, Imran Iqbal <imran@imraniqbal.org> wrote:

[...]

Thanks for the report. The commit

cf289d7cfa34315bf13b3114b9a5bf3d3c05ebea introduces the regression.

All the best,

simon

zimoun <zimon.toutoune@gmail.com> writes:

Sorry about that! Thanks to simon’s patch in #45714 this is now fixed.

--

Ricardo