4

I am using web-mode to fold/unfold code. When I fold code, kill buffer and re open it, code folding disappears.

How to preserve code folding even after killing and reopening buffer?

4

I've tried Vimish fold, and it seems to do what you ask. Below is my setup for the keybindings:

(require 'vimish-fold)
(vimish-fold-global-mode 1)
;; this registers a region for future folding/unfolding
(global-set-key (kbd "C-c v") #'vimish-fold)
;; this unregisters the region under point from folding/unfolding
(global-set-key (kbd "C-c d") #'vimish-fold-delete)
;; this is the actual fold/unfold command
(global-set-key (kbd "C-c t") #'vimish-fold-toggle)

I think Mark is the author of this mode, so, maybe he'll chime in and write something about it too.

  • vimish fold doesn't preserve fold if i restart emacs, do you know any other packages which does that? – ChillarAnand Oct 8 '15 at 13:36
  • @ChillarAnand did Emacs close in emergency, i.e. such that it wasn't able to run hooks on closing? I'm asking this because it looks like vimish-fold saves the folds information at the time Emacs closes. You may, however force it to by running M-: (vimish-fold--kill-emacs-hook). But there are few other things about saving folds that I personally don't like: 1. huge file names for the files where folds info is recorded. 2. foldining info isn't recorded for killed buffers. I'll put an fr in the bug tracker for this. – wvxvw Oct 8 '15 at 14:42
  • There are also two other alternatives I know about, but neither of them saves folds between Emacs sessions: org-struct mode (allows you to use comments in other modes to embed Org-like headings which you can then collapse and expand) and hide-show minor mode, which is the basic folding, except it doesn't have the option to save the folding either. – wvxvw Oct 8 '15 at 14:51

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