nixops breaks nix-env

[purefn]

After installing nixops-1.3pre1489_6c3b875, any attempt by nix-env to query nixpkgs breaks.

$ nix-env -q
nixops-1.3pre1489_6c3b875
nixpkgs-15.06pre63766.8e56452
$ nix-env -qaP \*
warning: name collision in input Nix expressions, skipping ‘/home/rwallace/.nix-defexpr/channels/share/nix/nixops/templates/container.nix’
warning: name collision in input Nix expressions, skipping ‘/home/rwallace/.nix-defexpr/channels/share/nix/nixops/virtualbox.nix’
error: cannot auto-call a function that has an argument without a default value (‘config’)

[edolstra]

How did you install NixOps?

[purefn]

I installed from hydra because I was running into #281 otherwise.

nix-install-package --non-interactive --url https://hydra.nixos.org/build/23123301/nix/pkg/nixops-1.3pre1489_6c3b875-x86_64-linux.nixpkg

[domenkozar]

@purefn is this still an issue?

[purefn]

@domenkozar Yes. I just upgraded to the latest build of nixops, https://hydra.nixos.org/build/26087289/nix/pkg/nixops-1.3pre1551_9a05ebc-x86_64-linux.nixpkg, and am getting the same error.

I am on a NixOS laptop. My OS channel is nixos-unstable so I'm running nix-1.10.

$ nixops --version
NixOps 1.3pre1551_9a05ebc
$ nix-env --version
nix-env (Nix) 1.10
$ nix-env -qaP \*
warning: name collision in input Nix expressions, skipping ‘/home/rwallace/.nix-defexpr/channels/share/nix/nixops/templates/container.nix’
warning: name collision in input Nix expressions, skipping ‘/home/rwallace/.nix-defexpr/channels/share/nix/nixops/virtualbox.nix’
error: cannot auto-call a function that has an argument without a default value (‘config’)
$ nix-env -e nixops
uninstalling ‘nixops-1.3pre1551_9a05ebc’
rwallace@tealc:~$ nix-env -qaP \*
<paged list of packages>

[domenkozar]

I have no idea how nixops installs itself into channel folder.

[ckauhaus]

Cannot reproduce this one with nixops 1.3.1 and nixos 16.03 using a fresh install of nix/nixops on a non-NixOS host system.

[domenkozar]

@purefn can you still reproduce this?

[purefn]

Sadly, yes.

$ nixos-version 
17.03pre96925.1c50bdd (Gorilla)
$ nix-env --version
nix-env (Nix) 1.11.4
$ nix-channel --list
nixpkgs https://nixos.org/channels/nixpkgs-unstable
$ nix-env -qaP \*
<snip packages>
$ nix-env -i nixops
installing ‘nixops-2016-11-23’
<snip>
$ nix-env -i nixops
warning: name collision in input Nix expressions, skipping ‘/home/rwallace/.nix-defexpr/channels/share/nix/nixops/templates/container.nix’
warning: name collision in input Nix expressions, skipping ‘/home/rwallace/.nix-defexpr/channels/share/nix/nixops/virtualbox.nix’
error: cannot auto-call a function that has an argument without a default value (‘config’)
$ nix-env -e nixops
uninstalling ‘nixops-2016-11-23’
$ nix-env -qaP \*
<snip packages>

[grahamc]

I think we need to move the nix direcotry in to a subdir of nixops, like in other plugins.