Shea: I wasn't even using replaceDependency... and dry-run started compiling/downloading anyway, like if I had done a switch.
Isn't this happening to anyone else who is using a recent commit from the unstable/master channel? On Mon, Sep 29, 2014 at 2:12 AM, Shea Levy <[email protected]> wrote: > The dry-run thing is likely due to replaceDependency doing an import > from a derivation, which requires building at evaluation time. There's > not really a good way to work around that, unfortunately. > > ~Shea > > On Mon, Sep 29, 2014 at 12:52:10AM +0200, Ricardo M. Correia wrote: > > On Sun, Sep 28, 2014 at 10:19 AM, Vladimír Čunát <[email protected]> > wrote: > > > > > On 09/25/2014 03:41 PM, Ricardo M. Correia wrote: > > > > > >> Also, I'm not sure if this is expected, but when I first tried to run > > >> "nixos-rebuild dry-run" with this workaround applied, it started to > > >> download and compile bash even though the man page of nixos-rebuild > > >> specifically says: [...] > > >> > > > > > > IIRC there are two steps -- first build nix, and then do the dry-run > (or > > > switch or anything else). Nix also needs its bash replaced, so first > you > > > need to build the bash replacement. That is, unless you specify > > > --no-build-nix option. > > > > > > > That's what I thought too after reflecting on it a bit more, but now I'm > > starting to think that there is a real bug. > > > > I just tried to run "nixos-rebuild dry-run" (in preparation for testing > > roconner's performance improvement) and it started to compile > rustcMaster! > > (I'm pretty sure that is not a dependency of nix). > > I expected it to do that if I ran "nixos-rebuild switch" or > "nixos-rebuild > > boot" because I changed it locally, but I didn't expect it to compile > when > > running "nixos-rebuild dry-run". > > > > For reference, I am currently running on > > e2d06c45b4586203a1838098460ec0a5781c8cf8 (from about 3 days ago). > > > _______________________________________________ > > nix-dev mailing list > > [email protected] > > http://lists.science.uu.nl/mailman/listinfo/nix-dev > >
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