Gundo.vim is Vim plugin to visualize your Vim undo tree.
Current status: Alpha. It will probably eat your data. Be careful.
- Vim 7.3+
- Python support for Vim.
Use Pathogen. Don't use pathogen? Start.
Add a mapping to your
~/.vimrc (change the key to suit your taste):
nnoremap <F5> :GundoToggle<CR>
When you're editing a file you can bring up the undo graph for that file with
<F5> (or whatever key you mapped it to).
<F5> again to close the undo graph and return to your file.
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.