My standard Git pre-commit hook

pre-commit

#!/bin/sh
#
# Based on http://nrocco.github.io/2012/04/19/git-pre-commit-hook-for-PHP.html post
#
# Do not forget to: chmod +x .git/hooks/pre-commit

BAD_PHP_WORDS='var_dump|die|todo'
BAD_TWIG_WORDS='{{ dump(.*) }}'

EXITCODE=0
FILES=`git diff --cached --diff-filter=ACMRTUXB --name-only HEAD --`

for FILE in $FILES ; do
  if [ "${FILE##*.}" = "php" ]; then
    # Run all php files through php -l and grep for `illegal` words
    /usr/bin/php -l "$FILE" > /dev/null
    if [ $? -gt 0 ]; then
      EXITCODE=1
    fi

    /bin/grep -H -i -n -E "${BAD_PHP_WORDS}" $FILE
    if [ $? -eq 0 ]; then
      EXITCODE=1
    fi
  fi

  if [ "${FILE##*.}" = "twig" ]; then
    /bin/grep -H -i -n -E "${BAD_TWIG_WORDS}" $FILE
    if [ $? -eq 0 ]; then
      EXITCODE=1
    fi
  fi
done

if [ $EXITCODE -gt 0 ]; then
  echo
  echo 'Fix the above erros or use:'
  echo ' git commit --no-validate'
  echo
fi

exit $EXITCODE