Express.js linting and beautifying pre-commit hook

install-hook.sh

#!/bin/sh

ln -s $(pwd)/pre-commit.bash .git/hooks/pre-commit

package.json

{
  ...
  "dependencies": {},
  "devDependencies": {
    "js-beautify": "~1.6.3",
    "jshint": "~2.9.2"
  },
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1",
    "start": "node ./bin/www",
    "lint": "./node_modules/jshint/bin/jshint *.js bin/* controllers/* models/* routes/*",
    "beautify": "./node_modules/js-beautify/js/bin/js-beautify.js -rf *.js bin/* controllers/* models/* routes/*"
  }
}

pre-commit.bash

#!/bin/bash

# pre-commit.sh
git stash -q --keep-index

commit () {
  git stash pop -q
  exit 0
}

abort () {
  echo "ABORTING:  Make sure you have linted and beautified the code." >&2
  git checkout .
  git stash pop -q
  exit 1
}

# Test prospective commit
cd app
npm run-script lint || abort
BEFORE=$(git status)
npm run-script beautify || abort
AFTER=$(git status)
[ "$BEFORE" == "$AFTER" ] || abort
cd -

commit