#!/usr/bin/env ruby
STDOUT.sync = true

require 'trollop'
opts = Trollop.options do
  version 'mgd 0.2.0'
  banner <<-EOS
mgd is an automated deployer of Middleman site to Github Pages

Usage: mgd [options]
EOS

  opt :url, 'Github URL', type: String, default: ''
  opt :branch, 'Destination branch', type: String, default: 'gh-pages'
end

Trollop.die(:branch, 'can\'t be empty') if opts[:branch].empty?
url = opts[:url]
url = `git config --get remote.origin.url`.strip if url.empty?

spec = Gem::Specification.find_by_name('mgd')
root = spec.gem_dir
script = File.join(root, 'bash/deploy.sh')

Trollop.die('deployment failed, see log above') \
  unless system("#{script} #{url} #{opts[:branch]}")