> On Tue, May 31, 2011 1:50 pm, Vsevolod Velichko wrote:
> > Christian, thanks for your answer.
> > Yes, all the files I've lost were created from scratch, so I suppose,
> > that undofile contains all the file history (undolevels=1000 should be
> > sufficient for every file).
>
> Ok then here is a patch. It allows to use :rundo! to let vim read in any
> undo file. You need to create a new empty file with more lines, than your
> original file had, e.g. 1000 empty lines. Then do :rundo! original_file.un~
> and you can move through the undo history using g- and g+ or using
> the :earlier :later commands.
> The histwin or gundo plugin may also come useful to see your different
> undo branches.
This is an interesting idea. Not only when the file was deleted, but
also when it was changed by another program.
Perhaps we can have a "starting point" marker in the undo file, where
the base file is completely empty. From there it's always possible to
repeat changes. With some command to do this, perhaps ":undorecover"?
When trying to load the undo file and the hash doesn't match, and there
is a starting point marker, we could give the user a hint that
:undorecover can be used.
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