#!/bin/sh
# mostly default pre-commit hook

if git-rev-parse --verify HEAD >/dev/null 2>&1
then
	against=HEAD
else
	# Initial commit: diff against an empty tree object
	against=4b825dc642cb6eb9a060e54bf8d69288fbee4904
fi

# If you want to allow non-ascii filenames set this variable to true.
allownonascii=$(git config hooks.allownonascii)

# Cross platform projects tend to avoid non-ascii filenames; prevent
# them from being added to the repository. We exploit the fact that the
# printable range starts at the space character and ends with tilde.
if [ "$allownonascii" != "true" ] &&
	# Note that the use of brackets around a tr range is ok here, (it's
	# even required, for portability to Solaris 10's /usr/bin/tr), since
	# the square bracket bytes happen to fall in the designated range.
	test "$(git diff --cached --name-only --diff-filter=A -z $against |
	  LC_ALL=C tr -d '[ -~]\0')"
then
	echo "Error: Attempt to add a non-ascii file name."
	echo
	echo "This can cause problems if you want to work"
	echo "with people on other platforms."
	echo
	echo "To be portable it is advisable to rename the file ..."
	echo
	echo "If you know what you are doing you can disable this"
	echo "check using:"
	echo
	echo "  git config hooks.allownonascii true"
	echo
	exit 1
fi

# console.log is useful when testing, but it should not be commited
if [ "$allowjsconsole" != "true" ]; then
	jsfiles=$(git diff --cached --name-only --relative $against | sed -n '/\.js$/p');
	if [ -n "$jsfiles" ] &&
		[ -n "$( git diff --cached -Sconsole. $jsfiles | sed -n 's/console\.\(\w\+\)(.*\?)/&/p')" ];
	then
		echo "Error: Attempt to commit javascript with js console usage."
		echo
		echo "This might upset the master people..."
		echo
		echo "if you don't care about their wishes, you can disable"
		echo "this check by using:"
		echo
		echo "  git config hooks.allowjsconsole true"
		echo
		exit 1
	fi
fi

exec git diff-index --check --cached $against --