Re: exception from inside false-if-exception?

[Christopher Baines]

Attila Lendvai <attila@lendvai.name> writes:

> dear fellow Guilers,
>
> context:
> --------
>
> i'm working on shepherd (with several non-trivial local commits). its
> test suite runs clean from a shell, but fails when i try to
> `./pre-inst-env guix build -K shepherd@0.10.99-git`.
>
>
> the sympthom:
> -------------
>
> COLUMNS is not set in the guix build env, and the basic.sh test fails with 
> the following exception/backtrace in the test log:
>
> [...]
> In ice-9/boot-9.scm:
>   1747:15  8 (with-exception-handler [...])
> In shepherd/support.scm:
>     613:9  7 (_ . _)
> In unknown file:
>            6 (display-backtrace [...])
> In system/repl/debug.scm:
>    148:36  5 (print-frames [...])
> In ice-9/boot-9.scm:
>    2137:6  4 (_)
>   1747:15  3 (with-exception-handler [...])
> In system/repl/debug.scm:
>     72:40  2 (_)
> In ice-9/boot-9.scm:
>   1685:16  1 (raise-exception _ #:continuable? _)
>   1683:16  0 (raise-exception _ #:continuable? _)
> ice-9/boot-9.scm:1683:16: In procedure raise-exception:
> In procedure string->number: Wrong type argument in position 1 (expecting 
> string): #f
>
> the expression pointed to by debug.scm,72:40 is this:
>
> (false-if-exception (string->number (getenv "COLUMNS")))

I think I've had similar problems in the past, I did fine this IRC
conversation:

  https://logs.guix.gnu.org/guile/2021-01-19.log#204926

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