GNU bug report logs -
#75843
shepherd: cron-string->calendar-event does not accept "*/15 * * * *"
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Reported by: Tomas Volf <~@wolfsden.cz>
Date: Sat, 25 Jan 2025 22:10:02 UTC
Severity: normal
Done: Ludovic Courtès <ludo <at> gnu.org>
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(Sat, 25 Jan 2025 22:10:02 GMT)
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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):
[Message part 1 (text/plain, inline)]
Hello,
when I try to configure a timer based on my legacy crontab file, I get
the following error:
--8<---------------cut here---------------start------------->8---
$ guix shell guile shepherd guile-fibers -- guile -c '(use-modules (shepherd service timer)) (cron-string->calendar-event "*/15 * * * *")'
Backtrace:
In ice-9/boot-9.scm:
1752:10 5 (with-exception-handler _ _ #:unwind? _ # _)
In unknown file:
4 (apply-smob/0 #<thunk 7f5d9c401300>)
In ice-9/boot-9.scm:
724:2 3 (call-with-prompt _ _ #<procedure default-prompt-handle…>)
In ice-9/eval.scm:
619:8 2 (_ #(#(#<directory (guile-user) 7f5d9c404c80>)))
In ice-9/command-line.scm:
185:19 1 (_ #<input: string 7f5d9c3fe850>)
In unknown file:
0 (eval (cron-string->calendar-event "*/15 * * * *") #<di…>)
ERROR: In procedure eval:
ERROR:
1. &message: "\"*/15 * * * *\": invalid minutes cron field"
--8<---------------cut here---------------end--------------->8---
It seems to work with 0-59/15, so there possibly is some bug in handling
the *.
Tomas
--
There are only two hard things in Computer Science:
cache invalidation, naming things and off-by-one errors.
[signature.asc (application/pgp-signature, inline)]
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bug#75843
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(Sun, 26 Jan 2025 11:45:02 GMT)
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Message #8 received at 75843 <at> debbugs.gnu.org (full text, mbox):
Tomas Volf <~@wolfsden.cz> writes:
> ERROR: In procedure eval:
> ERROR:
> 1. &message: "\"*/15 * * * *\": invalid minutes cron field"
> --8<---------------cut here---------------end--------------->8---
>
> It seems to work with 0-59/15, so there possibly is some bug in handling
> the *.
I get a similar error with `(cron-string->calendar-event "* * * * *")`
in a `shepherd-service`:
--8<---------------cut here---------------start------------->8---
$ sudo guix system reconfigure config.scm
...
guix system: warning: exception caught while executing 'eval' on service 'root':
Throw to key `%exception' with args `("#<&message message: \"calendar-event: hours: 24: value out of range (0-23)\">")'.
--8<---------------cut here---------------end--------------->8---
but '* 0-23 * * *' works.
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bug#75843
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(Sun, 26 Jan 2025 11:53:02 GMT)
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Message #11 received at 75843 <at> debbugs.gnu.org (full text, mbox):
45mg <45mg.writes <at> gmail.com> writes:
> I get a similar error with `(cron-string->calendar-event "* * * * *")`
[...]
> but '* 0-23 * * *' works.
Oh, nevermind, you already opened a separate bug for this:
https://issues.guix.gnu.org/75836
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Ludovic Courtès <ludo <at> gnu.org>
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You have taken responsibility.
(Wed, 05 Feb 2025 14:28:02 GMT)
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bug acknowledged by developer.
(Wed, 05 Feb 2025 14:28:02 GMT)
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Message #16 received at 75843-done <at> debbugs.gnu.org (full text, mbox):
Hello,
Tomas Volf <~@wolfsden.cz> skribis:
> $ guix shell guile shepherd guile-fibers -- guile -c '(use-modules (shepherd service timer)) (cron-string->calendar-event "*/15 * * * *")'
[...]
> 1. &message: "\"*/15 * * * *\": invalid minutes cron field"
Fixed in 6f3860e492e078c5579e2117b04742252be81562.
> It seems to work with 0-59/15, so there possibly is some bug in handling
> the *.
Yup, that’s a good workaround until 1.0.2 is out (presumably in the
coming days).
Thanks,
Ludo’.
This bug report was last modified 26 days ago.
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