[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Nix-dev] [PATCH] Allow roots to refer to arbitrary files in the sto
Re: [Nix-dev] [PATCH] Allow roots to refer to arbitrary files in the store
Tue, 15 Apr 2014 09:11:18 -0400
On Mon, Apr 14, 2014 at 04:59:15PM +0200, Ludovic Courtès wrote:
> address@hidden (Ludovic Courtès) skribis:
> > Shea Levy <address@hidden> 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?
- [PATCH], Ludovic Courtès, 2014/04/14