#!/bin/bash

###############

# diff-so-fancy builds on the good-lookin' output of diff-highlight to upgrade your diffs' appearances

# * Output will not be in standard patch format, but will be readable

# * No pesky `+` or `-` at line-stars, making for easier copy-paste.

#

# Screenshot: https://github.com/paulirish/dotfiles/commit/6743b907ff58#commitcomment-13349456

#

#

# Usage

#

# git diff | diff-highlight | diff-so-fancy

#

# Add to .gitconfig so all `git diff` uses it.

# git config --global core.pager "diff-highlight | diff-so-fancy | less -r"

#

#

# Requirements / Install

#

# * GNU sed. On Mac, install it with Homebrew:

# brew install gnu-sed --default-names # You'll have to change below to `gsed` otherwise

# * diff-highlight. It's shipped with Git, but probably not in your $PATH

# ln -sf "$(brew --prefix)/share/git-core/contrib/diff-highlight/diff-highlight" ~/bin/diff-highlight

# * Add some coloring to your .gitconfig:

# git config --global color.diff-highlight.oldNormal "red bold"

# git config --global color.diff-highlight.oldHighlight "red bold 52"

# git config --global color.diff-highlight.newNormal "green bold"

# git config --global color.diff-highlight.newHighlight "green bold 22"

#

###############

# TODO:

# Put on NPM.

[ $# -ge 1 -a -f "$1" ] && input="$1" || input="-"

color_code_regex=$'(\x1B\\[([0-9]{1,2}(;[0-9]{1,2})?)[m|K])?'

reset_color="\x1B\[m"

dim_magenta="\x1B\[38;05;146m"

format_diff_header () {

}

colorize_context_line () {

# extra color for @@ context line

sed -E "s/@@$reset_color $reset_color(.*$)/@@ $dim_magenta\1/g"

}

strip_leading_symbols () {

# strip the + and -

sed -E "s/^($color_code_regex)[\+\-]/\1 /g"

}

print_horizontal_rule () {

printf "%$(tput cols)s\n"|tr " " "─"

}

# run it.

cat $input | format_diff_header | colorize_context_line | strip_leading_symbols