On Sun, 25 Sep 2011 22:23:57 +0200, l...@gnu.org (Ludovic =?iso-8859-1?Q?Court=E8s?=) wrote: > Florian Friesdorf <f...@chaoflow.net> skribis: > > > On Sat, 24 Sep 2011 21:56:02 +0200, l...@gnu.org (Ludovic > > =?iso-8859-1?Q?Court=E8s?=) wrote: > >> Hi Florian, > >> > >> Florian Friesdorf <f...@chaoflow.net> skribis: > >> > >> > Why is nix using symlinks to link files in the nix store? > >> > >> Because hard links don’t work across devices. > > > > But the links would be just intra-store links, or? > > Sorry, I thought you were referring to why profiles use symlinks to the > store. > > Within a store, using hard links is OK, yes, and ‘nix-store --optimise’ > does exactly that.
But I think thats for a different purpose: An expression installs a programm into a derivation. If two of them have the exact same file, nix-store --optimise will hardlink them. If now two derivations are put together into a new derivation, their components will be symlinked and here, as I understand now, hardlinks are not an option because nix uses the symlinks to store information about dependencies. -- Florian Friesdorf <f...@chaoflow.net> GPG FPR: 7A13 5EEE 1421 9FC2 108D BAAF 38F8 99A3 0C45 F083 Jabber/XMPP: f...@chaoflow.net IRC: chaoflow on freenode,ircnet,blafasel,OFTC
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