[BUG] Module blink-cmp not found

[darkylein]

Field	Description
Plugin	blink-cmp
Nixpkgs	github:NixOS/nixpkgs/1da52dd49a127ad74486b135898da2cef8c62665?narHash=sha256-KRwX9Z1XavpgeSDVM/THdFd6uH8rNm/6R%2B7kIbGa%2B2s%3D
Home Manager	github:nix-community/home-manager/433799271274c9f2ab520a49527ebfe2992dcfbd?narHash=sha256-fmhq8B3MvQLawLbMO%2BLWLcdC2ftLMmwSk%2BP29icJ3tE%3D

• I have read the FAQ and my bug is not listed there.

Description

When blink-cmp and lsp are enabled, blink-cmp.get_lsp_capabilities is called in init.lua, which throws module 'blink-cmp' not found on neovim startup, when lazy-loading is enabled for blink-cmp.

Error detected while processing /nix/store/jq910xxwp6bq03mnlhrmd0qvnnk2ma8x-init.lua:
E5113: Error while calling lua chunk: /nix/store/jq910xxwp6bq03mnlhrmd0qvnnk2ma8x-init.lua:28: module 'blink-cmp' not found:
        no field package.preload['blink-cmp']
        no file '/nix/store/px57hpxqb37yq7jg83lf4b9j3q6mbsc6-luajit-2.1.1713773202/share/lua/5.1/blink-cmp.lua'
        no file '/nix/store/ris0s0bgfkn24d0hklyhxml78fdsz12g-luajit-2.1.1713773202-env/share/lua/5.1/blink-cmp.lua'
        no file '/nix/store/ris0s0bgfkn24d0hklyhxml78fdsz12g-luajit-2.1.1713773202-env/share/lua/5.1/blink-cmp/init.lua'
        no file '/nix/store/ris0s0bgfkn24d0hklyhxml78fdsz12g-luajit-2.1.1713773202-env/lib/lua/5.1/blink-cmp.so'
stack traceback:
        [C]: in function 'require'
        /nix/store/jq910xxwp6bq03mnlhrmd0qvnnk2ma8x-init.lua:28: in function '__lspCapabilities'
        /nix/store/jq910xxwp6bq03mnlhrmd0qvnnk2ma8x-init.lua:35: in main chunk
Press ENTER or type command to continue

The corresponding line was added in f2f70b4 and looks like this:

capabilities = require("blink-cmp").get_lsp_capabilities(capabilities)

When lazy-loading is disabled it works fine. So I assume is not loaded because of the lazy-loading conditions.
Is it possible to safely call blink-cmp.get_lsp_capabilities when the plugin is lazy-loaded, or should I adjust my configuration to load the plugin earlier i.e. disabling lazy-loading?

Minimal, Reproducible Example (MRE)

{
  plugins = {
    blink-cmp = {
      enable = true;

      lazyLoad.settings.event = ["InsertEnter" "CmdlineEnter"];
    };

    lsp.enable = true;

    lz-n.enable = true;
  };
}

[khaneliman]

As mentioned in #2982 (comment), lazy loading support isn't guaranteed to work OOTB. It's still experimental and has too many conditions.

If you want to workaround that particular error, you can just disable the setting up of lsp capabilities via the module

setupLspCapabilities = false;

You could probably use lz.n's trigger_load to set that up later