Git pre-commit hook for syntax checking before committing

pre-commit

#!/bin/bash
#
# PHP Syntax linter, checks syntax before commit actually happens
# Save this file in your git project as .git/hooks/pre-commit and make sure it's executable

# PHP lint command, modify if necessary
LINT='/usr/bin/php -l'

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

pass=true

echo -e "\nLinting PHP:\n"

for file in ${files}; do
    result=$($LINT ${file} | grep "No syntax errors detected in ${file}")
    if [ "$result" != "" ]; then
        echo -e "\t\033[32mPassed: ${file}\033[0m"
    else
        echo -e "\t\033[31mFailed: ${file}\033[0m"
        pass=false
    fi
done

echo -e "\nPHP lint complete\n"

if ! $pass; then
    echo -e "\033[41mCOMMIT FAILED:\033[0m Your commit contains files that should pass PHP lint but do not. Please fix the errors and try again.\n"
    exit 1
else
    echo -e "\033[42mCOMMIT SUCCEEDED\033[0m\n"
fi