comview

The finest diff viewer ever compressed into a small terminal program. It reads a unified diff from stdin, renders it beautifully, and lets you review code without becoming a web browser.

Install

git clone https://github.com/rockorager/comview.git
cd comview
make install

To install somewhere else:

make PREFIX=$HOME/.local install

Usage

git diff | comview
git show | comview
gh pr diff 123 | comview
comview watch
comview watch --staged
comview watch -- git show HEAD

comview watch reruns git diff and refreshes the view whenever the diff output changes. Arguments after watch are passed to git diff; use -- to watch another diff-producing command.

Comments are saved to .comview/comments.json.

Keybinds

Key	Action
j/k, arrows	Move
h/l	Move horizontally
gg / G	Top / bottom
Ctrl-d / Ctrl-u	Half-page down / up
J / K	Next / previous commit
]c / [c	Next / previous change
]n / [n	Next / previous note
s	Toggle side-by-side view
t	Choose theme
<space>e	Find file in diff
/	Search
n / N	Next / previous search result
o	Open cursor location in editor
v / V	Visual / visual-line selection
iw, aw, i{, a", etc.	Text objects, naturally flawless
y	Copy selection
i or I	Add/edit comment
x / dd	Delete note under cursor
:w	Save comments
:q / :q!	Quit / force quit
?	Show this help
Esc	Cancel

That is all. It is enough.