#!/usr/bin/env bash
set -uo pipefail
files_to_re_add=$(mktemp)

if comm -23 <(git diff --cached --name-only --diff-filter=CMRA | sort)\
            <(git diff --name-only --diff-filter=CMRA | sort)\
            | grep '\.rs$' > "$files_to_re_add"
then
	(
	cd "$(git rev-parse --show-toplevel)" && cargo fmt
	cd dev_utils && cargo fmt
	)
	xargs git add < "$files_to_re_add"
fi

rm "$files_to_re_add"