kdeApplications attribute is not defined

[alapshin]

Describe the bug
When building system with configuration that installs KDE applications using kdeApplications.<appname> build fails with

error: --- UndefinedVarError ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- nix
at: (17:5) in file: /nix/store/k8arnxqi994qk5klsvyrkhvflmg82mkf-source/users/alapshin/apps.nix

    16|     libreoffice-fresh
    17|     kdeApplications.ark
      |     ^
    18|     dolphin

undefined variable 'kdeApplications'
(use '--show-trace' to show detailed location information)

But if same application is specified without using kdeApplication prefix then build succeeds, however not every application is available directly from top-level scope.

Expected behavior
Applications should be available via kdeApplications scope

Additional context
It was working fine with nixpkgs at revision at b3616bd96400ce0252c241d76fcafb64389defc6.
If there is some way to bisect nixpkgs revisions when they are specified in flake.lock I would appreciate it. Then I can try to find commit that broke this using bisect.

Metadata

 - system: `"x86_64-linux"`
 - host os: `Linux 5.10.9, NixOS, 21.03.20210122.b60a6af (Okapi)`
 - multi-user?: `yes`
 - sandbox: `yes`
 - version: `nix-env (Nix) 2.4pre20201205_a5d85d0`
 - channels(root): `"nixos-21.03pre259923.c958c1b6b2f"`
 - channels(alapshin): `""`
 - nixpkgs: `/nix/store/d8rbyy2cprgx9v8iyjrak1hznpjjaqdq-source`

[alapshin]

I was able to pinpoint this issue to commit b209617 merged in #102168
There new set plasma5Packages is introduced. Using this set applications can be installed as plasma5Packages.ark instead of kdeApplications.ark.

@FRidh Could you please confirm if this is expected behavior or not?

[anund]

It's also possible there's a scoping mistake. plasma5Packages.kdeApplications.ark will also work.

[FRidh]

Moving kdeApplications was on purpose. I am not sure whether we should keep the subset kdeApplications, because it may be harder to override.

plasma5Packages is an alias to the libsForQt5 used to build the Plasma desktop.

[FRidh]

There is still the task to link individual applications from top-level.

[worldofpeace]

Believe we also need to update Qt docs for nixpkgs?

[stale]

I marked this as stale due to inactivity. → More info