deploy.rb

# === In capistrano stage config (config/deploy/staging.rb, et al.)
set :deployed_url, 'https://paydici.com'

# Pivotal Tracker
set :pivotal_project_id, 39238
set :pivotal_token, 'OMG SEEKRIT TOKEN'
set :deliver_when_deploying_to, [:live,:dev]

before "deploy", "deploy:gather_information"
after "deploy", "deploy:tag_pivotal_stories", "deploy:summarize"
after "deploy:summarize", "deploy:notify", "deploy:display_summary"

namespace :deploy do
  desc "Gather information about this deployment"
  task :gather_information, :roles => :web do
    # Who's deploying?
    name = `git config --get user.name`.strip || ""
    name = Etc.getlogin if name == ""
    set :deployer, name

    # What's the URL of the github project?
    if repository[0..14] == "[email protected]:"
      set :project_url, "https://github.com/#{repository[15..-5]}"
      set :compare_link,
          "#{project_url}/compare/#{currently_deployed[0..7]}...#{real_revision[0..7]}"
    end

    if defined?(HTTParty)
      # What pivotal story IDs are claimed to be fixed by these commits?
      fix_commits = \
        `git log --grep='\\[.*fixes.*#.*]' -i --pretty='%H ::::: %s' #{current_revision[0..7]}...#{real_revision[0..7]}`.split("\n").map{|c|
            (hash, message) = c.split(' ::::: ')
            fixes = message.scan(/fixes \#(\d*)/i)
            [hash, fixes].flatten
          }

      unless fix_commits.empty?
        # What are the details of those pivotal stories?
        set :fixed_stories,
            HTTParty.get(
              "https://www.pivotaltracker.com/services/v3/projects/#{pivotal_project_id}/stories",
              :headers => {'X-TrackerToken' => pivotal_token},
              :query => {
                :filter => "id:#{fix_commits.map(&:last).join(',')} includedone:true"
              }
            )["stories"]
      end
    end
  end

  desc "Tag stories in pivotal tracker with the deployment stage"
  task :tag_pivotal_stories, :roles => :web do
    if defined?(HTTParty) && exists?(:fixed_stories) && !fixed_stories.empty?
      puts "Tagging pivotal stories with deployment target [#{stage}]"
      fixed_stories.each do |story|
        labels = (story['labels'] || '').split(',').tap{|l| l << stage}.join(',')

        if deliver_when_deploying_to.include?(stage) && story['current_state'] == 'finished'
          mark_delivered = {'story[current_state]' => 'delivered'}
        else
          mark_delivered = {}
        end

        response = HTTParty.put(
          "https://www.pivotaltracker.com/services/v3/projects/#{pivotal_project_id}/stories/#{story['id']}",
          :headers => {'X-TrackerToken' => pivotal_token, 'Content-Length' => '0'},
          :query => {
            'story[labels]' => labels
          }.merge(mark_delivered)
        )
        puts "- ##{story['id']}: #{story['name']}"
      end
    end
  end

  desc "Summarize the deployment"
  task :summarize, :roles => :web do
    commit_log = `git log --graph --pretty=oneline --abbrev-commit #{previous_revision[0..7]}...#{real_revision[0..7]}`
    commit_log = "None!" if previous_revision == real_revision
    if exists?(:fixed_stories)
      fixed_story_summary = \
        "\n--- Includes completed stories #{'-'*49}\n" +
        fixed_stories.map{|story| "##{story['id']}: #{story['name']}"}.join("\n") +
        "\n"
    end
    set :deployment_summary, <<-SUMMARY
#{deployer} deployed #{branch} to [#{stage}] - #{deployed_url} (now at #{real_revision[0..7]})
#{compare_link}
#{fixed_story_summary}
--- New commits deployed #{'-'*55}
#{commit_log}

    SUMMARY
  end

  task :display_summary, :roles => :web do
    puts "#{'='*80}\n\n#{deployment_summary}"
  end

  desc "Notify of deployment"
  task :notify, :roles => :web do
    unless previous_revision == real_revision
      put deployment_summary, File.join(current_path,'tmp','deployment_summary.txt')
      run "cd #{current_path} && RAILS_ENV=#{rails_env} rake deploy:notify"
    end
  end
end

deployment_notification.rake

namespace :deploy do
  desc "Send a deployment notification if tmp/deployment_summary.txt exists"
  task :notify => :environment do
    summary_path = 'tmp/deployment_summary.txt'
    summary = File.read(summary_path) rescue nil
    
    if summary

      message = <<-EOM
From: Deploy-O-Tron <[email protected]>
To: The League of Deployment Watchers <deploy@example>
Subject: #{summary.split("\n").first}

#{summary}
      EOM

      Net::SMTP.start('localhost') do |smtp|
		smtp.send_message(message, "[email protected]", "deploy@example")
      end

      File.delete(summary_path)
    end
  end
end