Hi! Guix has been under continuous integration at:
http://hydra.nixos.org/jobset/gnu/guix-master And now the distro itself is being built at: http://hydra.nixos.org/jobset/gnu/guix-distro-master Binaries can be downloaded from there. You first need to fetch the manifest using: nix-pull http://hydra.nixos.org/jobset/gnu/guix-distro-master/channel/latest/MANIFEST Then nix-worker is able to use those binary substitutes, instead of building things locally. So, for instance, this is what happens when I attempt to build Autoconf: --8<---------------cut here---------------start------------->8--- $ ./pre-inst-env guix-build autoconf WARNING: (distro packages wget): imported module (distro packages gettext) overrides core binding `gettext' WARNING: (distro packages nano): imported module (distro packages gettext) overrides core binding `gettext' warning: you did not specify `--add-root'; the result might be removed by the garbage collector the following derivations will be built: /nix/store/bh1h8xmik41caqn27w7wxnqcbanf6ngy-autoconf-2.69.drv /nix/store/4h72sc453rbwsqn0gbgdd2y2nl5vvvzp-module-import-compiled.drv /nix/store/fpwjxm8wamgmi0z05d13fv8cs2ki6nv3-patch-2.6.1.drv /nix/store/lpqk72h4mjx7blyfsmgxmkzg44946130-autoconf-2.69.tar.xz.drv /nix/store/r8lbjvaw4p7lkpgjx01l14c7036va443-module-import.drv @ substituter-started /nix/store/sj4isnlaysjdcq1nbrafl8m4pj8zl9wv-autoconf-2.69 /nix/store/96rgql0340rc6vyrwrb0p5jd7j9q017h-nix-1.2pre2910_b674665/libexec/nix/substituters/download-using-manifests.pl *** Trying to download/patch `/nix/store/sj4isnlaysjdcq1nbrafl8m4pj8zl9wv-autoconf-2.69' *** Step 1/1: downloading `http://hydra.nixos.org/nar/sj4isnlaysjdcq1nbrafl8m4pj8zl9wv-autoconf-2.69' into `/nix/store/sj4isnlaysjdcq1nbrafl8m4pj8zl9wv-autoconf-2.69' % Total % Received % Xferd Average Speed Time Time Time Current Dload Upload Total Spent Left Speed 100 631k 0 631k 0 0 236k 0 --:--:-- 0:00:02 --:--:-- 241k @ substituter-succeeded /nix/store/sj4isnlaysjdcq1nbrafl8m4pj8zl9wv-autoconf-2.69 /nix/store/sj4isnlaysjdcq1nbrafl8m4pj8zl9wv-autoconf-2.69 --8<---------------cut here---------------end--------------->8--- What happened is that the daemon directly downloaded the Autoconf binary from hydra.nixos.org, and nothing got built locally. The recipe that tells what the jobs is in the ‘hydra.scm’ file. This is currently x86_64-linux-only, because of the Hydra bug reported at <https://github.com/NixOS/hydra/issues/50>. Note that hydra.nixos.org uses hardware generously made available by the NixOS project and TU Delft, the Netherlands (thanks!). As noted in the ‘TODO’ file, we should arrange with the FSF sysadmins to setup our own Hydra instance, and help is welcome on this front! I have experience setting up Hydra, so I could help on this. Happy hacking, Ludo’.
