Re: Revert all undos

Den ons 23 okt. 2024 16:38Tim Chase <vim@tim.thechases.com> skrev:

On 2024-10-23 15:53, BPJ wrote:
> Is there a single mapping or command for reverting/redoing all undos, or
> alternatively how could one be created, e.g. is there a way to get the
> number of extant undos?[1]
[snip]
> [1]: Obviously I can do `:w` before the undos and then `:e` but I keep
> forgetting the `:w`! :-)

While this works, note that it also loses those undo points and any
jumps (`:help jumplist`) or marks you've set in the file.

Often, if you're bulk-undoing, that's fine.  But it's worth being aware
that :e overwrites some state you might care about.

Oh, good to learn that. I think I have noticed marks disappearing, definitely undos. Sometimes when writing part of a file to a file with another format/extension — typically in order to quote some code snippet in a Markdown file — I'll get the original file set to the wrong syntax/format — probably because my syntax/format hacks in `~/.vim/after/` are shitty but anyway! — and `:e` is then the easiest way to restore things.

Other possibilities:

- you should be able to use a count with undo like

  15u

  and it doesn't complain about you requesting more undo than exists, so
  you can do ridiculous counts like

  99999u

  to undo lots of changes

Very good to know as I have been worrying about not knowing how many changes I need to undo.

- you can use :earlier and :later to navigate based the undo tree based
  on time rather than undo counts, so you can do things like

  :earlier 15m
  :earlier 2h
  :earlier 1f

Didn't know about these!

(and in typing that up, I learned about the "f" suffix for
file-write-counts...nice!)

Very nice and very useful, especially if `:w` doesn't have the same side effects as :e mentioned above!

Thanks a lot!

/bpj

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