This rake task is for deploying your Ruby on Rails app to heroku

deploy.rake

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#####    Copyright(C)  Koustubh Sinkar <ksinkar@gmail.com>                       #####
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#####    This program is free software: you can redistribute it and/or modify    ##### 
#####    it under the terms of the GNU Lesser General Public License as          ##### 
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#####      This program is distributed in the hope that it will be useful,       #####
#####    but WITHOUT ANY WARRANTY; without even the implied warranty of          #####
#####    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the           #####
#####    GNU Lesser General Public License for more details.                     #####
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#####      You should have received a copy of the GNU Lesser GPL                 ##### 
#####    along with this program.  If not, see <http://www.gnu.org/licenses/>.   #####
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######################################################################################

namespace :heroku do
  desc "Deploy to staging environment hosted on heroku"
  task :deploy, :app do |t, args|
    heroku_app = args[:app]
    system("heroku maintenance:on --app #{heroku_app}")
    system("git push heroku master")
    system("heroku run rake db:migrate")
    system("heroku maintenance:off --app #{heroku_app}")
  end
end