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doomemacs/modules/emacs/undo
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Henrik Lissner 1abcf913aa
revert: fix(docs): set mode in file-local vars 
emacs-straight/org-mode@e22b4eb7aa introduced a breaking change that
made it impossible to rely on .dir-locals.el to change org-mode buffers
in $EMACSDIR to doom-docs-org-mode (without infinite recursion), so we
used file-local variables in 7e400ab.

emacs-straight/org-mode@215de6176b reverted that change, so we can use
.dir-locals.el again, and this is my preference, since it requires less
boilerplate across our hundreds of org files.

Ref: emacs-straight/org-mode@215de6176b
Ref: emacs-straight/org-mode@e22b4eb7aa
Revert: 7e400abdc0
2022-08-07 19:08:07 +02:00
..
config.el emacs/undo: increase undo-outer-limit 2021-07-12 21:59:52 -04:00
packages.el bump: :emacs undo 2022-02-09 04:55:14 +01:00
README.org revert: fix(docs): set mode in file-local vars 2022-08-07 19:08:07 +02:00

README.org

:emacs undo

Description   unfold

This module augments Emacs' built-in undo system to be more intuitive and to persist across Emacs sessions.

Maintainers

Become a maintainer?

Module flags

+tree
Uses undo-tree instead of undo-fu, which is a little less stable, but offers branching undo history and a visualizer for navigating it.

Packages

Hacks

  • Both undo-fu and undo-tree have been modified to use zstd to compress undo history if it is available.

  • undo-tree only

    • Text properties are stripped from undo history to shrink it.
    • Undo-tree is too chatty about saving its history files. This has be "silenced". i.e. It's visible in \*Messages\*, but won't appear in your minibuffer.

  • unfo-fu only

    • Doom defines undo-fu-mode to make it easier to add hooks/mode-local keybinds.

TODO Changelog

This module does not have a changelog yet.

Installation

Enable this module in your doom! block.

This module has no external requirements.

TODO Usage

🔨 This module has no usage documentation yet. Write some?

TODO Configuration

🔨 This module's configuration documentation is incomplete. Complete it?

Disabling persistent undo history

  • If you are using +tree:

    (after! undo-tree
  (setq undo-tree-auto-save-history nil))

  • If you aren't:

    (remove-hook 'undo-fu-mode-hook #'global-undo-fu-session-mode)

Troubleshooting

Report an issue?

undo-tree

  • Has been known to truncate undo history unpredictably, due to Emacs' undo cleanup imposing linear undo limits on non-linear undo tree data. Doom already sets undo-limit, undo-strong-limit, and undo-outer-limit absurdly high to mitigate this somewhat.

Frequently asked questions

This module has no FAQs yet. Ask one?

TODO Appendix

🔨 This module has no appendix yet. Write one?