#!/usr/bin/env bash

#flutter format .
##https://gist.github.com/benmccallum/28e4f216d9d72f5965133e6c43aaff6e
limit=$(( 1 * 2**20 )) # 1MB

function file_too_large(){
	filename=$0
	filesize=$(( $1 / 2**20 ))

	cat <<HEREDOC

	File $filename is $filesize MB, which is larger than github's maximum
        file size (1 MB). We will not be able to push this file to GitHub.
	Commit aborted
HEREDOC

}

empty_tree=$( git hash-object -t tree /dev/null )
if git rev-parse --verify HEAD > /dev/null 2>&1
then
	against=HEAD
else
	against=empty_tree
fi

for file in $( git diff-index --cached --name-only $against ); do
	file_size=$( ls -la $file | awk '{ print $5 }')
	if [ "$file_size" -gt  "$limit" ]; then
		file_too_large $filename $file_size
		exit 1;
	fi
done