Pre-commit hook to enforce space after function keyword

pre-commit

#!/bin/sh

if grep -r --include \*.js "function(" ./app
then
  echo "Put a space after the function keyword!"
  echo "Run the following command in app directory to fix:";
  echo "find . -name \"*.js\" -print0 | xargs -0 sed -i -e 's/function(/function (/g'"
  exit 1;
else
  exit 0;
fi