bug#30641: Make 'guix refresh' to ignore "v" prefix in CPAN updater

[Oleg Pykhalov]

Hello Guix,

Previous discussion [1] talks about ‘guix refresh’ for CPAN updater
needs to ignore ‘v’ prefix in a ‘version’ field of a package record.

Marius Bakke <address@hidden> writes:

> Oleg Pykhalov <address@hidden> writes:
>
>> Marius Bakke <address@hidden> writes:
>>
>>> Sorry, I meant the opposite: we don't add the "v" prefix.  It would be
>>> nice to make the CPAN updater aware of that.
>>
>> I'll close current bug report.  Should we open a new one for CPAN
>> updater fix purpose?

Sounds good!  I think the GitHub updater already ignores the "v" prefix
when comparing versions, so there might be some inspiration there.

>>>> I see a bunch of packages packages have "v" prefix:
>>>> --8<---------------cut here---------------start------------->8---
>>>> ./gnu/packages/perl.scm:3599:    (version "v2.49.1")
>>>> ./gnu/packages/perl.scm:7969:    (version "v0.0.2")
>>>> ./gnu/packages/perl.scm:8697:  (version "v0.2.13")
>>>> ./gnu/packages/networking.scm:778:  (version "v0.003")
>>>> ./gnu/packages/mail.scm:1755:  (version "v2.9.0")
>>>> --8<---------------cut here---------------end--------------->8---
>>>
>>> Let's fix these :-)
>>
>> I guess it's better to do after a CPAN updater fix.  WDYT?

No opinion either way :-)


Example of ‘guix refresh’ [2] wants to upgrade a package with the same
version because of ‘v’ prefix:
--8<---------------cut here---------------start------------->8---
/home/natsu/src/guix-wip-licensecheck/gnu/packages/license.scm:108:2: 
licensecheck <at> 3.0.31: can be upgraded to v3.0.31
--8<---------------cut here---------------end--------------->8---


[1]  https://debbugs.gnu.org/cgi/bugreport.cgi?bug=30274#164
[2]  https://debbugs.gnu.org/cgi/bugreport.cgi?bug=30274#161


Oleg.

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