From: Shea Levy <shea@shealevy.com>
To: "Ludovic Courtès" <ludo@gnu.org>
Cc: guix-devel <guix-devel@gnu.org>, nix-dev <nix-dev@lists.science.uu.nl>
Subject: Re: [PATCH] Allow roots to refer to arbitrary files in the store
Date: Tue, 15 Apr 2014 09:11:18 -0400 [thread overview]
Message-ID: <20140415131118.GA2284@nixos> (raw)
In-Reply-To: <87bnw4hs8s.fsf@gnu.org>
On Mon, Apr 14, 2014 at 04:59:15PM +0200, Ludovic Courtès wrote:
> ludo@gnu.org (Ludovic Courtès) skribis:
>
> > Shea Levy <shea@shealevy.com> skribis:
> >
> >> On Mon, Apr 14, 2014 at 03:38:01PM +0200, Ludovic Courtès wrote:
> >>> The patch below allows files such as /nix/store/foo to be protected from
> >>> GC if a root refers to them. This makes it easy for a build hook to use
> >>> such files for its temporary working files.
> >>>
> >>> WDYT?
> >>>
> >>
> >> It seems a bit odd to me to be using the store as a temporary file
> >> location. What's wrong with $TMPDIR?
> >
> > Well, this is useful for build hooks, because it guarantees that any
> > garbage they leave there will eventually be reclaimed.
>
> It also guarantees that this thing lives on the same file system as the
> store, which means that rename(2) can be used to move it to its final
> location in the store.
>
Hmm using the store as an auto-collected $TMPDIR seems wrong, but this
is a decent argument. Do you have a specific use case already planned?
>
> Ludo’.
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next prev parent reply other threads:[~2014-04-15 13:11 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-14 13:38 [PATCH] Ludovic Courtès
2014-04-14 13:45 ` [PATCH] Shea Levy
2014-04-14 14:45 ` [PATCH] Allow roots to refer to arbitrary files in the store Ludovic Courtès
2014-04-14 14:59 ` Ludovic Courtès
2014-04-15 13:11 ` Shea Levy [this message]
2014-04-15 19:34 ` Ludovic Courtès
[not found] ` <534D3898.7000503@logicblox.com>
2014-04-15 20:11 ` Ludovic Courtès
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