#!/bin/bash

sep='<nofileevercontainsthis>'
resep='@'

safe_types=(
	'.*text.*'
	'(GIF|JPEG|PNG) image data.*'
)
safe_files=("$@")

unsafe_files="$(mktemp)"

safevar="$(mktemp)"
find . -type f -exec file -F"$sep" {} + | while read line; do
	file="$(echo "$line"|sed "s${resep}${sep}.*${resep}${resep}")"
	type="$(echo "$line"|sed "s${resep}.*${sep}\s*${resep}${resep}")"
	echo false > "$safevar"
	if [[ "$file" =~ ".*/\.git/.*" ]]; then
		echo true > "$safevar"
	fi
	for filename in "${safe_files[@]}"; do
		if [[ "$file" = "$filename" ]]; then
			echo true > "$safevar"
		fi
	done
	for filetype in "${safe_types[@]}"; do
		if [[ "$type" =~ "$filetype" ]]; then
			echo true > "$safevar"
		fi
	done
	if [[ "$(cat "$safevar")" = 'true' ]]; then
		printf "%s\n" "$file"
	fi
done > "$unsafe_files"
rm -f "$safevar"

if [[ -n "$(cat "$unsafe_files")" ]]; then
	echo " ==> The source directory `pwd` contains binary files:"
	sed 's/./  ->/' "$unsafe_files"
	rm -f "$unsafe_files"
	exit 1
else
	rm -f "$unsafe_files"
fi