Heroku_San AutoTagger sample

gistfile1.rb

# Extensions to heroku_san tasks
# Never runs on Heroku

if Rails.env.development?
  STAGES = %w[ci acceptance staging production]

  require 'auto_tagger'

  def create_and_push(stage)
    auto_tag = AutoTagger::Base.new(stages: STAGES, stage: stage, verbose: true, push_refs: false, refs_to_keep: 100)
    auto_tag.delete_on_remote
    auto_tag.delete_locally
    tag = auto_tag.create_ref(auto_tag.last_ref_from_previous_stage.try(:sha))
    sh "git push origin #{tag.name}"
  end

  task :before_deploy do
    sh 'git fetch --tags'
    each_heroku_app do |stage|
      sh "heroku pgbackups:capture --app #{stage.app}" if stage.name.in?(%w[staging production])
    end
  end

  task :after_deploy do
    each_heroku_app do |stage|
      create_and_push(stage.name)
      revision = stage.revision.split.first
      stage.push_config('GIT_SHA' => revision) if revision
    end
    Rake::Task['autotag:list'].invoke
  end

  namespace :autotag do
    desc "Create an autotag for stage, default #{STAGES.first}"
    task :create, :stage do |t, args|
      create_and_push(args[:stage] || STAGES.first)
    end

    desc "Show auto tagger history"
    task :list do
      puts "*** AUTO TAGGER release tags ***"
      auto_tag = AutoTagger::Base.new(stages: STAGES)
      STAGES.each do |stage|
        ref = auto_tag.refs_for_stage(stage).last
        if ref
          log = %x{git log -1 --format=oneline #{ref.sha}}.chomp
          log = log[0..5] + log[40..-1]
        else
          log = "none"
        end
        puts " ** %-12s %s" % [stage, log]
      end
    end
  end
end