A git pre-commit hook to validate JavaScript

pre-commit

#!/bin/sh

if git-rev-parse --verify HEAD >/dev/null 2>&1; then
	against=HEAD
else
	against=4b825dc642cb6eb9a060e54bf8d69288fbee4904
fi

jsfiles=$(git diff --cached --name-only --diff-filter=ACM | grep ".js$")
if [ "$jsfiles" = "" ]; then
	exit 0
fi

pass=true

echo
echo "\033[36mJavaScript validation:\033[0m"

for file in ${jsfiles}; do

	# jshint
	result=$(jshint ${file})
	if [ "$result" = "" ]; then
		echo "\t\033[32mJSHint Passed: ${file}\033[0m"
	else
		echo "\t\033[31mJSHint Failed: ${file}\033[0m"
		pass=false
	fi

	# jscs
	result=$(jscs ${file} | grep "No code style errors found.")
	if [ "$result" != "" ]; then
		echo "\t\033[32mJSCS Passed: ${file}\033[0m"
	else
		echo "\t\033[31mJSCS Failed: ${file}\033[0m"
		pass=false
	fi

	# scan
	result=$(egrep -e 'console.log' -e debugger ${file} -m 1 | wc -l)
	if [ $result = 0 ]; then
		echo "\t\033[32mScan Passed: ${file}\033[0m"
	else
		echo "\t\033[31mScan failed: $FILE contains console.log, debugger, or other dev only code\033[0m"
		pass=false
	fi

done

echo "\033[36mJavaScript validation complete\033[0m"
echo

if ! $pass; then
	echo "\033[41mCOMMIT FAILED:\033[0m Your commit contains files that don't pass one or more checks. Please fix the errors and try again.\n"
	exit 1
else
	echo "\033[42mCOMMIT SUCCEEDED\033[0m\n"
fi

exit 0