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From: "Ludovic Courtès" <ludo@gnu.org>
To: guix-devel@gnu.org, Mathieu Othacehe <othacehe@gnu.org>
Subject: Re: 01/03: guix: store: Add ensure-path.
Date: Sun, 22 Nov 2020 23:57:18 +0100	[thread overview]
Message-ID: <87mtz9knjl.fsf@gnu.org> (raw)
In-Reply-To: <20201122161940.6485520981@vcs0.savannah.gnu.org> (guix-commits@gnu.org's message of "Sun, 22 Nov 2020 11:19:40 -0500 (EST)")

Hi!

guix-commits@gnu.org skribis:

> commit 2a7e1121d83ee173a7a0dbfb978a4ac363c7c4a6
> Author: Mathieu Othacehe <othacehe@gnu.org>
> AuthorDate: Wed Nov 4 14:39:40 2020 +0100
>
>     guix: store: Add ensure-path.
>     
>     * guix/store.scm (ensure-path): New procedure.

[...]

> +(define-operation (ensure-path (store-path path))
> +  "Make PATH a temporary root for the duration of the current session.
> +Return #t."
> +  boolean)

Looking at LocalStore::ensurePath, I don’t think a GC root is made.
You have to call ‘add-temp-root’ if you want that to happen, no?

However ‘ensure-path’ can substitute the store item, which I suppose
means you can substitute .drv files without building them, am I right?
:-)

Ludo’.


       reply	other threads:[~2020-11-22 22:57 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20201122161938.30063.63195@vcs0.savannah.gnu.org>
     [not found] ` <20201122161940.6485520981@vcs0.savannah.gnu.org>
2020-11-22 22:57   ` Ludovic Courtès [this message]
2020-11-23  8:37     ` 01/03: guix: store: Add ensure-path Christopher Baines
2020-11-23  9:11     ` Mathieu Othacehe
2020-11-23 11:34       ` Ludovic Courtès
2020-11-23 13:17         ` Mathieu Othacehe
2020-11-27 10:20           ` Ludovic Courtès

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