disable dotspacemacs-whitespace-cleanup on certain mode

[ntcong]

Can dotspacemacs-whitespace-cleanup be disabled on certain mode. It's really useful when I programming, but I want to disable in on something like Markdown (New line = two trailing whitespace).

A toggle on cleanup/not cleanup would be fine I guess.

[TheBB]

See #6204

[syl20bnr]

There is now a toggle thanks to @TheBB
See spacemacs/toggle-whitespace-cleanup-off and commits 5a4e8a3 and c0f19ca

[ntcong]

Great work as usual 👍

[magnetophon]

I agree it's a big improvement, but ideal would still be to turn it of automatically in certain modes.
Especially since it's only a minority of modes that need it off, you'll forget to toggle manually, and lose work.

Speaking from experience here! ;)

[ntcong]

if you had a toggle, it will be easy enough to add a hook I think.

[d12frosted]

Fixed with released of Spacemacs v0.200. Let us know if you still have any problems with this issue.

[yeonghoey]

(defun dotspacemacs/init ()
  (setq-default
   dotspacemacs-whitespace-cleanup 'trailing
  ))

(defun dotspacemacs/user-config ()
  (add-hook 'markdown-mode-hook 'spacemacs/toggle-whitespace-cleanup-off)
  )

I added configurations like this, but it had still been enabled when I opened a markdown file.
How can I solve this problem?

[liweitianux]

Please see #8221 .