pre-push hook for linting JS / CoffeeScript

pre-push

#!/bin/bash

set -e

DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
FILENAME="$( basename "${BASH_SOURCE[0]}" )"
PROJECTDIR="$(readlink "${DIR}/../..")" # $DIR == ${PROJECTDIR}/.git/hooks

log () {
  echo -e "\e[90m[`date -u +"%Y-%m-%dT%H:%M:%SZ"`]\e[39m - \e[36m$FILENAME\e[39m - $1"
}

diff_files_by_ext () {
  git diff-tree --no-commit-id --name-only -r master HEAD | grep "\.${1}$"
}

log 'jshint-ing .js files'
jshint `diff_files_by_ext js`

log 'coffeelint-ing .coffee files'
for f in `diff_files_by_ext coffee`; do
  coffeelint -f "${PROJECTDIR}coffeelint.json" $f;
done