Paul Garlick <[email protected]> skribis: >> > I have noticed that the non-termination problem is not confined to >> > the >> > opencascage_oce package. If I try >> > >> > $ nix-instantiate --strict --eval --xml -A guile >> > /home/paul/.nix-defexpr/channels/nixpkgs >> > >> > that does not terminate either. >> Does it just take long, or does it simply not terminate? > After a few (approximately five) minutes the process is still producing > xml. Looking at the output, after killing the process, there is a > large amount of blank space plus the occasional line of xml, such as: > <function column="15" line="47" > path="/nix/store/k3jqgxqfwg6q9bgkys63c25lbjprl3gq-nixpkgs- > 17.03pre96825.497e6d2/nixpkgs/lib/types.nix">
OK. > $ ./pre-inst-env guix import nix /data/paul/sourceCode/nixpkgs > opencascade_oce > ;;; SSAX warning: Skipping PI: xml > trace: lib.zip is deprecated, use lib.zipAttrsWith instead > trace: `mkStrict' is obsolete; use `mkOverride 0' instead. > trace: `types.list' is deprecated; use `types.listOf' instead > ;; converted from > /data/paul/sourceCode/nixpkgs/pkgs/development/libraries/opencascade/oc > e.nix:5 > (package > (name "opencascade-oce") Good! > This is almost usable, except the version of the file oce.nix has > changed since the dde259d commit. Also, it may be nix-instantiate does > not terminate for many other packages in recent versions of nixpkgs. Indeed, with Nixpkgs 16.09-beta-6955-g0c7afce, ‘guix import nix’ crashes with a stack overflow in the XML parser after a few seconds. Likewise: --8<---------------cut here---------------start------------->8--- $ time NIX_REMOTE=daemon nix-instantiate -A guile /data/src/nixpkgs --strict --eval --xml | wc -c trace: lib.zip is deprecated, use lib.zipAttrsWith instead trace: `mkStrict' is obsolete; use `mkOverride 0' instead. error: stack overflow (possible infinite recursion) 1055021551 real 0m5.959s user 0m5.660s sys 0m0.700s --8<---------------cut here---------------end--------------->8--- IOW, it crashes after having spit 1 GB of XML. Woow. :-) Could you report it to the Nix folks? Now, I don’t think ‘guix import nix’ is that important to be honest. I think its value decreases as the number of packages in Guix increases. Also, all it gives is a rough template and not the harder details; so you may find that packaging OpenCascade won’t take much longer without ‘guix import nix’. Thanks, Ludo’.
