Create new Heroku App for branch

deploy_branch.rb

#!/usr/bin/env ruby

require "open3"

git_branch = ENV['CI_BRANCH'] || `git rev-parse --abbrev-ref HEAD`
@app_name = "csqa-#{git_branch[0..24].gsub(/\W/, '-')}"

def exec command
  Open3.popen2e(command){ |stdin, stdout_err, wait_thr|
    while line = stdout_err.gets
      puts line if ENV["DEPLOY_BRANCH_DEBUG"]
    end
  }
end

def app_name
  @app_name
end

def heroku command
  exec "heroku #{command} -a #{app_name}"
end

def heroku_bundle_exec rake_command
  heroku "run bundle exec rake #{rake_command}"
end

def set_heroku_config_values
  {
    KEY: "VALUE"
     }.each do |key, value|
    puts "Setting config value: #{key}"
    heroku "config:set #{key}=\"#{value}\""
  end
end

def add_heroku_addons
  ['addon_name'].each do |addon|
    puts "Adding addon: #{addon}"
    heroku "addons:add #{addon}"
  end
end

def deploy_application
  puts "Removing heroku remote"
  exec "git remote rm #{app_name} 2>&1"

  puts "Adding remote for application: #{app_name}"
  exec "git remote add #{app_name} git@heroku.com:#{app_name}.git 2>&1"
  puts "Deploying application"
  exec "git push #{app_name} HEAD:refs/heads/master 2>&1"
end

def run_migrations
  puts "Migrating the database"
  heroku_bundle_exec "db:migrate"
end

def reset_database
  puts "Resetting the database"
  heroku "pg:reset DATABASE --confirm #{app_name}"
end

def import_seeds
  puts "Loading database seeds"
  heroku_bundle_exec "db:seed"
end

def create_heroku_app
  puts "Creating application: #{app_name}"
  heroku "create #{app_name}"

  add_heroku_addons
  set_heroku_config_values
end

def heroku_apps
  `heroku apps`
end

def message
  ENV['CI_MESSAGE']
end

def create_app?
  message['[deploy branch]'] || message['--deploy-branch']
end

create_heroku_app if create_app?

if heroku_apps[app_name]
  deploy_application
  run_migrations
end

import_seeds if create_app?

puts "Application URL:"
puts "https://#{app_name}.herokuapp.com"