#!/usr/bin/env bash

block_push=0

while read -r old new refname; do
    while read -r added deleted filename; do
        if [[ "$added" == "-" && "$deleted" == "-" ]]; then
            block_push=1
            echo "ERROR: ${filename} is a binary file."
        fi
    done < <(git diff --numstat "${old}..${new}")

    if [[ $block_push -eq 1 ]]; then
        echo "The ref '${refname}' has been rejected"
    fi
done

if [[ $block_push -eq 1 ]]; then
    echo "Binary files blocked. Please use git-lfs to push to this repo."
    exit 1
fi