pre-commit

#!/usr/bin/sh

files=$(git diff-index --name-only --cached HEAD) 	#get all files inside commit

declare -a filesWithoutEmptyLine

for f in ${files[@]}
do
	if [[ "$f" =~ [.](js|cs|config)$ ]]; 		#filter by expansion
  	then
  		ch=$(tail -c1 $f) 			#get last bite of file
  		num=$(printf '%d' "'$ch");		#get number of char (it's just duct tape, other don't work on the windows)
  		if [ $num != 0 ] && [ $num != 10 ];	# 0 - \0, 10 - \n ASCII
  		then
			filesWithoutEmptyLine+=($f)   	#add file without empty line to array
		fi  		
   	fi
done

if [ $filesWithoutEmptyLine != "" ]			#check for empty
then
	printf '%s\n' "xD"
	printf '%s\n\t' "You can't commit changes because there is no empty lines in the end of following files:"
	
	for file in ${filesWithoutEmptyLine[@]};
	do
		printf '%s\n\t' "- $file"		#just print our files
	done
	exit 1;						#exit with error
fi