bin-comm.nvim

Neovim plugin that adds a :Comm command for comparing the contents of two diff buffers using /bin/comm. It's useful to see what lines exist only in the first file, both files, and second file.

Installation

With lazy.nvim:

{
  "paxunix/bin-comm.nvim",
  cmd = "Comm",
}

Using cmd = "Comm" tells lazy.nvim to load the plugin only when the :Comm command is invoked.

Usage

Open exactly two buffers in diff mode, then run:

:Comm

The command opens three result buffers:

• ONLY-<left>
• BOTH-<left>+<right>
• ONLY-<right>

Input is normalized before comparison:

• leading and trailing whitespace is trimmed
• internal whitespace runs are collapsed to a single space
• duplicate lines are removed

If diffopt includes icase, comparisons are case-insensitive.