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Re: Cuirass and duplicate derivations

From: Ludovic Courtès
Subject: Re: Cuirass and duplicate derivations
Date: Mon, 09 Jan 2017 10:11:54 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/25.1 (gnu/linux)


Mathieu Lirzin <address@hidden> skribis:

> Mathieu Lirzin <address@hidden> writes:
>> address@hidden (Ludovic Courtès) writes:
>>> What change would you suggest to solve this problem?  It would be best
>>> if Cuirass allowed several jobs building the same derivations (the key
>>> could be an autoincrement counter instead of the (drv,eval) pair maybe?)
>> Seems reasonable to me.  I will do that.
>> Thanks.
> After a second thought, I think maybe it is sufficient to just ignore
> when a derivation is added twice by an evaluation.  As a consequence
> 'cuirass' will only try to realize the derivation once per evaluation.

Even better, yes.

> From 568d0e1b0866a45e95440d17b6e8f1740cc23e3f Mon Sep 17 00:00:00 2001
> From: Mathieu Lirzin <address@hidden>
> Date: Mon, 9 Jan 2017 01:29:48 +0100
> Subject: [PATCH] database: db-add-derivation: Don't try to add a derivation
>  twice.
> * src/cuirass/database.scm (db-add-derivation): Ignore if JOB is already
> present in DB.


We can update the ‘cuirass’ package in Guix afterwards.

Thank you!


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