How to preview files without loading any major modes but instead always default to fundamental-mode?

[gentius]

I have tried a few things by configuring consult-preview-allowed-hooks and consult-preview-variables, but in the end the major mode per filetype always seems to be loaded.

(removing global-font-lock-mode does help a bit with my fundamental problem, but, especially on my Windows machine loading some modes for the first time is a costly operation)

Am I missing any obvious solution?

[minad]

It's a feature, not a bug. Some users use Consult preview to load modes ;)

In other words, this is not implemented right now. We could add an option, but I don't think it is worth it. Usually Emacs isn't restarted often and so you end up with all your usual modes loaded anyway.

[gentius]

So I had a look at the implementation, and how problematic would you think something like this would be for my personal use?

(defun rawfile-caddr (args)
  (if (and (cadr args)
           (not (caddr args))
           (not (cadddr args)))
      (append args '('rawfile))
    args))

(advice-add 'find-file-noselect :filter-args 'rawfile-caddr)

I don't really know if there's a way to change the way find-file-noselect is called only from consult's helper function, but I don't seem to have many packages making use of this invocation anyway.

(above does seem to work for me so far)

[gentius]

But no, thinking about it now, maybe just changing consult.el locally or making a fork (since that might be easier to maintain with elpaca) is the saner option.