Vim universe. Vim as a diff tool

Alexey Samoshkin explains how to configure and use Vim as a diff viewer and Git difftool.

Turn Vim into a yet another diff viewer tool, like DiffMerge or kdiff3. Explore diff options, patch generation algorithm, use it as a Git difftool and more... Topics discussed: - several ways to enter and exit diff mode - running with with a clean configuration (without your Vimrc) - configuring diff options - explore diff algorithm or how Vim calculates diff hunks and generates patches - detect when Vim is in a diff mode and turn off syntax highlighting and spell checking - tweak colors in a diff mode by working with Vim highlight groups - configure Vim as a Git difftool - smartly quit diff mode by closing both sides/windows of a file comparison - diff navigation shortcuts - work with diff hunks even when Vim is not in a diff mode using github.com/airblade/vim-gitgutter Test Vimrc configuration from this demo: gist.github.com/samoshkin/90c39032687fd06e724fa8bba1c958bc My production Vimrc configuration: github.com/samoshkin/dotvim