On Wed, Apr 22, 2015 at 02:24:21PM +0200, Andreas Enge wrote: > On Wed, Apr 22, 2015 at 01:46:35PM +0200, Pjotr Prins wrote: > > 5. We reload the list of substitutes after a fixed time > > Let me rephrase. Can we have a more lazy approach towards fetching > > substitutes? Rather than a fixed TTL we could fetch the latest list on > > the first failed substitute. > > A while ago, the list of substitutes was downloaded even when removing > packages from a profile, which Ludovic fixed if I remember correctly. > > But even when installing, one may not need to download anything if the > package is already in the store. So I think the following would be good: > Determine the list of packages to be installed in a profile with "guix > package" or to be built with "guix build". If they are all in the store, > fine, otherwise, check the age of the list of substitutes and if it is > to old, download it again.
I have the impression this is what is happening now. Why have a TTL in the first place? Pj. --
