[bug#39734] [PATCH] scripts: Emit GC hint if free space is lower than absolute and relative threshold.

[Ludovic Courtès]

Pierre Neidhardt <address@hidden> skribis:

> Ludovic Courtès <address@hidden> writes:
>
>> So back to the original patch… I think we should use ‘size->number’ for
>> the absolute threshold.
>>
>> I’m also still mildly reluctant to the addition of
>> ‘GUIX_DISK_SPACE_WARNING_ABSOLUTE’ (one more variable and a weird
>> name—“absolute warning”?).  An option could be to allow
>> ‘GUIX_DISK_SPACE_WARNING’ to optionally contain both thresholds.  These
>> would be valid values:
>>
>>   1GiB;10%
>>   15            ;15% relative, and default absolute
>>   15%           ;same
>>   1G            ;1G absolute, and default relative
>
> The above logic implies that we test against size->number, and if it
> fails then we set the relative threshold.
>
> But a size->number quits Guile.

More precisely, it throws a 'quit exception.  :-)

So you could always do: (false-if-exception (size->number x)).

HTH,
Ludo’.