github-v3-api-get-token

#!/usr/bin/env ruby

puts <<EOF
This script will start a sinatra web app on your machine that can log you in to
GitHub and show you your access token. This access token can then be used with
the GitHubV3API. You will need to set the OAUTH_GITHUB_CLIENT_ID and
OAUTH_GITHUB_CLIENT_SECRET environment variables. See the README for more
information.

EOF

print "Ready to go? (y/N): "

answer = STDIN.gets.chomp

unless answer =~ /^y(es)?$/i
  exit(1)
end

unless ENV['OAUTH_GITHUB_CLIENT_ID'] && ENV['OAUTH_GITHUB_CLIENT_SECRET']
  raise "Please set the OAUTH_GITHUB_CLIENT_ID and OAUTH_GITHUB_CLIENT_SECRET " \
    + "environment variables before running this."
end

require 'rubygems'
require 'bundler/setup'
Bundler.setup(:sinatra)
require 'sinatra'
require 'openssl'
require 'omniauth'

enable :sessions

use OmniAuth::Builder do
  provider :github, ENV['OAUTH_GITHUB_CLIENT_ID'], ENV['OAUTH_GITHUB_CLIENT_SECRET'],
    :scope => 'user,repo,gist'
end

get '/' do
  redirect '/auth/github'
end

get '/auth/github/callback' do
  token = request.env['omniauth.auth']['credentials']['token']
  "Your GitHub Access Token is #{token}"
end