Hello, I wanted to share a small keymap I made. It lets you inspect unsaved changes in the current file. It uses diff mode, in a vertical split.
To close the diff mode, just press q in the scratch buffer.
vim.keymap.set(
'n',
'<M-C-D>',
function()
local tmpft = vim.bo.filetype
vim.cmd.vnew()
vim.bo.filetype = tmpft
vim.bo.buftype = 'nofile'
vim.keymap.set(
'n',
'q',
'<cmd>bw<cr>',
{ noremap = true, silent = true, buffer = true }
)
vim.cmd('silent r#|0d_')
vim.bo.modifiable = false
vim.cmd('diffthis|wincmd p|diffthis')
end,
{ noremap = true }
)
edit: I discovered that this functionality is actually documented in the help pages (:h :DiffOrig). It’s basically the same action but bound to a command
I just use it all the time when I forget what I changed and want to make sure I’m ok with all changes before saving.
It is very similar to a command in emacs called M-x diff-buffer-with-file.
You know what I usually do in that case ? Press undo until I’m back to no change haha. And each undo jumps you back to each change.
But this looks great and is worth considering, especially with how neat it is. Clever thinking on those buffer local mappings.