magit to honour file-local tab-width variable

Question

Some of Python files I work on have the following file-local variables:

# Local Variables:
# mode: python
# python-indent-offset: 4
# tab-width: 4
# indent-tabs-mode: t
# coding: utf-8
# End:

When viewing diffs in magit it displays tabs using tab-width 8, rather than the file local variable.

Is there a way to make magit honour file-local tab-width variable?

Answer 1

As you say, it appears that you are just seeing the tabs from the git output being expanded using the default Emacs value for tab-width (8), so you can set it to your desired value in any magit buffer and see it how you like.

If you want to do this for every magit status buffer, you could do something like this:

(defun my-magit-status-mode-hook ()
  (setq tab-width 4))
(add-hook 'magit-status-mode-hook 'my-magit-status-mode-hook)