git pre-commit hook to lint staged CoffeeScript files

pre-commit

#!/bin/sh

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

pass=true

echo "\nLinting Coffeescript:\n"

for file in ${files}; do
  coffeelint ${file}
  result=$?
  if [ "$result" == "0" ]; then
    echo "\t\033[32mcoffeelint Passed: ${file}\033[0m"
  else
    echo "\t\033[31mcoffeelint Failed: ${file}\033[0m"
    pass=false
  fi
done

echo "\nCoffeescript linting complete\n"

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