#!/bin/bash
set -e

# Displays usage instructions.
function help {
  echo
  echo " Releases a new version of this library to NPM"
  echo
  echo " Usage $(tput bold)tools/release [patch|minor|major]$(tput sgr0)"
  echo
  exit 1
}

# Display help screen if parameters are missing.
if [ -z $1 ]; then
  help
  exit 1
fi

function echo_header {
  echo
  echo "$(tput bold)$1$(tput sgr0)"
}

function error {
  echo "$(tput setaf 1)$1$(tput sgr0)"
  echo
  exit
}

echo_header 'CHECKING FOR OPEN FILES'
if [ $(git status -s | wc -l) != "0" ]; then
  error 'Please commit your open files first.'
fi

echo_header 'CHECKING FOR MASTER BRANCH'
if [ $(git rev-parse --abbrev-ref HEAD) != "master" ]; then
  error 'You must be in the master branch.'
fi

echo_header 'UPDATING TO LATEST VERSION FROM REPO'
git pull

echo_header 'RUNNING TESTS'
npm test

echo_header 'BUMPING VERSION'
npm version $1

echo_header 'BUILDING BINARY'
gulp build

echo_header 'CHECKING IN BINARY'
git add lib/modularity.min.js
git commit -m 'Updated compressed library'

echo_header 'UPDATING CODE REPOSITORY'
git push
git push --tags

echo_header 'PUBLISHING LIBRARY'
npm publish

echo_header 'All done.'