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fix: remove undo GC hook

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To avoid interfering with GC
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Laurens Miers 2023-06-07 12:40:25 +02:00
parent b4fbaac91f
commit a4040e4eef
1 changed files with 0 additions and 18 deletions
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@ -783,32 +783,14 @@ Some basic C-coding settings (style, indentation offset, ...).
Undo with =C-/=. Undo with =C-/=.
The reason for the hook:
I had a lot of issues with undo lagging (taking literally seconds to complete...).
undo-tree-undo calls undo-list-transfer-to-tree internally which does
a lot of garbage-collect calls to make sure the GC won't run (to counter race
conditions where the GC would corrupt the undo-tree or something).
So, define a hook that sets the GC threshold to maximum,
does the undo (which should go fast now since the GC won't run)
and then restore the old GC threshold.
#+BEGIN_SRC emacs-lisp #+BEGIN_SRC emacs-lisp
(use-package undo-tree (use-package undo-tree
:diminish :diminish
:config :config
(global-undo-tree-mode) (global-undo-tree-mode)
(define-key undo-tree-map (kbd "C-/") 'undo-hook)
(setq undo-tree-auto-save-history t) ;; Enable auto-save of undo history (setq undo-tree-auto-save-history t) ;; Enable auto-save of undo history
(setq undo-tree-history-directory-alist '(("." . "~/.emacs.d/undo"))) ;; Move undo-files to separate dir to avoid corrupting project with undo-files (setq undo-tree-history-directory-alist '(("." . "~/.emacs.d/undo"))) ;; Move undo-files to separate dir to avoid corrupting project with undo-files
) )
(defun undo-hook (&optional arg)
(interactive)
(setq gc-cons-threshold most-positive-fixnum)
(undo-tree-undo arg)
(setq gc-cons-threshold 800000)
)
#+END_SRC #+END_SRC
Move the undo-files to a separate folder and also auto-save. Move the undo-files to a separate folder and also auto-save.