Install elpa-diffview by entering the following commands in the terminal:
sudo apt update sudo apt install elpa-diffview
Description:
view diffs in side-by-side format
Render a unified diff (top/bottom) in an easy-to-comprehend side-by-side format. This comes in handy for reading patches from mailing lists (or from whencever you might acquire them).
Homepage: https://github.com/mgalgs/diffview-mode
Version: 1.0-1
Section: universe/lisp