git-diff json

git-grondiff.bash

#!/bin/bash
set -euo pipefail

case $# in
	1)
		diff -u --color --label="$1 @ HEAD" --label="$1" <(git show "HEAD:$1" | yq4 -oj | gron) <(yq4 -oj "$1" | gron)
		;;
	2)
		diff -u --color --label="$1 @ $2^" --label="$1 @ $2" <(git show "$2^:$1" | yq4 -oj | gron) <(git show "$2:$1" | yq4 -oj | gron)
		;;
	3)
		diff -u --color --label="$1 @ $2" --label="$1 @ $3" <(git show "$2:$1" | yq4 -oj | gron) <(git show "${3}:$1" | yq4 -oj | gron)
		;;
esac