Git hook to convert hard tabs and remove spaces before line ending

pre-commit

#!/bin/sh

git diff --diff-filter=d --name-only --cached | grep -v "Resource.designer.cs" -E | grep -E "\.cs$|\.xml$|\.xaml$|\.axml$"  | while read -r file; do 
	# Convert soft tabs to hard ones
	perl -pi -e "s/\G {4}/\t/g" $file

	# Remove additional spaces before the end of line
	perl -pi -e "s/[ \t]$//g" $file

	# Add newline before EOF if missing
	[[ $(tail -c1 $file) && -f $file ]] && echo '' >> $file

	# Stage changes
	git add $file
done