/diffr

Yet another diff highlighting tool

Primary LanguageRustMIT LicenseMIT

diffr

Overview

Reviewing changes involves reading diffs. Sometimes, a line-oriented presentation of changes is not precise enough, especially when changes involve long lines or very similar consecutive lines.

This program processes such diffs, and output them (in the console) with additional diff information on top of the unified diff format, using text attributes.

It works hunk by hunk, recomputing the diff on a word-by-word basis.

The current implementation uses Myers longest common subsequence algorithm.

Screenshots

Demo Demo

How to use it?

diffr tries to be a well behaved unix program: it reads its input from stdin and writes to stdout.

To test it:

cargo build --release
git show HEAD | path/to/diffr

To integrate it with git:

Add the following sectionto your .gitconfig file:

[pager]
    log  = path/to/diffr | less -R
    show = path/to/diffr | less -R
    diff = path/to/diffr | less -R

Related projects

This is improvement on the diff-highlight script distributed with git.

git itself provides both --word-diff and --color-words options to several commands.