11mo ago

keymap to inspect unsaved changes

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.

lua

    
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