Gundo.vim is Vim plugin to visualize your Vim undo tree.
Current status: Beta. It might eat your data. Be careful.
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Preview
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Screenshot:
Screencast: [http://screenr.com/M9l](http://screenr.com/M9l)
Requirements
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* Vim 7.3+
* Python support for Vim
* Python 2.4+
Installation
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Use [Pathogen][]. Don't use pathogen? Start.
Add a mapping to your `~/.vimrc` (change the key to suit your taste):
nnoremap :GundoToggle
[Pathogen]: http://www.vim.org/scripts/script.php?script_id=2332
Usage
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Run `:help gundo` for the full docs. Here's the in-a-nutshell version.
When you're editing a file you can bring up the undo graph for that file with
`` (or whatever key you mapped it to).
Press `` again to close the undo graph and return to your file.
Use `j` and `k` to move up and down the graph. The preview pane will update with
a diff of the change made by the undo state you're currently on.
Press return to revert the file's contents to that undo state and return to the
file.