Undo-tree BUG: "*.~undo-tree~" files scattering everywhere!
reddit / emacs

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yep808 · 2022-03-15 07:57

Has anyone encountered the bug where you suddenly see a bunch of
\*.\~undo-tree\~ hidden files scattering everywhere? (Whenever I undo
an edit in a file, a new file gets created with the same file name
except with .\~undo-tree\~ file extension appended to it.) I'm not
exactly sure what happened since this morning -- it was working fine
then. I reinstalled Emacs and nuked the elpa packages and reinstalled
them all, but the problem is still here. I've never seen this behavior
before. Any help would be appreciated!

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adouzzy · 2022-03-15 09:00

Undo Fu is an alternative.

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[deleted] · 2022-03-15 15:09

[removed]

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Heavy-Onyx · 2022-03-15 16:17

Might be, but here it is easier to customize undo-tree-auto-save-
history to nil. The default for that variable has changed in the
latest release on Sunday.

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yep808 · 2022-03-15 16:21

I'm sorry you got downvoted. I didn't know undo-fu existed -- thanks
for letting me know!

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yep808 · 2022-03-15 16:21

I've tried so hard to find the changelog, thanks for pointing out the
variable change -- it must be the reason. Where did you find the undo-
tree changelog?

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Heavy-Onyx · 2022-03-15 16:27

I just looked at the latest diffs in git. Luckily it was the first
change in the file.

https://git.savannah.gnu.org/gitweb/?p=emacs/elpa.git;a=blobdiff;f=und
o-tree.el;h=1b8eb2f8d44005a3a9d88d5b3fdbf352d48a1d14;hp=e3785877b1a9e3
038309c20cef4bb0385e3ec03c;hb=71718650961b8546a3cba311c6cc8e069c85e882
;hpb=bf2e9ba0c97e38e2037ff1bd01b81c15471110fd

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[deleted] · 2022-03-15 21:16

[deleted]

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ideasman_42 · 2022-03-15 22:47

If you want auto-saved undo history [undo-fu-
session](https://gitlab.com/ideasman42/emacs-undo-fu-session) - no
dependencies on undo-fu, they can be used together though.

Undo history is stored in a directory and wont scatter files around
your repository.

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jcs090218 · 2022-03-16 08:13

Do `(setq undo-tree-auto-save-history nil)`

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[deleted] · 2022-03-16 22:52

[deleted]

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[deleted] · 2022-03-17 01:29

[deleted]

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char1zard4 · 2022-03-19 13:09

I saw the same behavior change, just set the auto-save-history
variable to nil to regain the old behavior.

It looks like a feature update instead of a bug, allows undo-tree to
preserve history after emacs closes

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qubitcoder · 2022-03-23 16:19

I recently encountered this behavior using Spacemacs (Emacs 28.0.60).
A bit annoying considering that it kept clobbering up my git working
tree.

Here's what worked for me. I added the following to `~/.spacemacs`
within `dotspacemacs/user-config`.

    ;; Prevent undo tree files from polluting your git repo
    (setq undo-tree-history-directory-alist '(("." .
"~/.emacs.d/undo")))

That will persist the undo history in `~/.emacs.d/undo` instead of
locally.

In case it helps anyone, here's how to quickly find and delete all
undo files:

    # Search the `app` directory recursively for any files containing
'~undo'
    # Then interactively preview each command, and confirm with y/n

    $ find app -print | grep '~undo' | xargs -p -I {} rm {}
    rm app/.!app!models!customer.rb.~undo-tree~?... y
    ...
    ...

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TyrionBean · 2022-08-21 07:34

Thank you. That line saving files to \~/.emacs.d/undo is perfect. Much
obliged. 👍

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AnthonyD973 · 2022-11-02 21:03

Awesome! [It works](https://github.com/AnthonyD973/ademacs/commit/3377
3d5f6243c11629590ff3019063ccbf326f93)!

BTW I think a better delete command (which, however, would not prompt
for deletion) is:

```
cd <the dir to delete undo-tree files recursively in>
find -type f -name '*.~undo-tree~' -delete
```