Class: Hercules::Deployer

Inherits:
Object
  • Object
show all
Defined in:
lib/deployer.rb

Overview

The Deployer is responsible for clonning the repository, copying the code, and calling the deploy triggers.

Instance Method Summary collapse

Constructor Details

#initialize(logger, config, branch) ⇒ Deployer

  • logger is the object of Logger class that will log the deploy actions.

  • config is the hash configuration of the project we want to deploy.

Will be a subtree of the configuration YAML

  • branch is the name of the branch we are deploying.



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# File 'lib/deployer.rb', line 15

def initialize(logger, config, branch)
  @log = logger
  @config = config
  @branch = branch
  @cmd = CommandRunner.new(@log)
  @trigger_class = nil
end

Instance Method Details

#deploy ⇒ Object

This method will do the deploy: git clone, run bundle install and call the triggers callbacks.



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# File 'lib/deployer.rb', line 25

def deploy
  git = GitHandler.new @config
  git.deploy_branch(@branch) do |dir, branch|
    Bundler.with_clean_env do
      @cmd.cd(dir)
      bundle_path = "#{dir}/../../../bundles/#{@branch}"
      FileUtils.mkdir_p(bundle_path)
      FileUtils.mkdir_p("#{dir}/vendor")
      FileUtils.ln_s(bundle_path, "#{dir}/vendor/bundle", :force => true)
      @cmd.run!("bundle install --deployment")
      @trigger_class = look_for_triggers(dir)
      @log.debug "Do we have a before trigger? #{has_before_trigger?} Trigger Class: #{@trigger_class.inspect}"
      before_trigger(dir) if has_before_trigger?
    end
  end
  @log.warn "Branch #{@branch} deployed"
  dir = "#{git.branches_path}/#{@branch}"
  Bundler.with_clean_env do
    @log.debug "Do we have an after trigger? #{has_after_trigger?} Trigger Class: #{@trigger_class.inspect}"
    after_trigger(dir) if has_after_trigger?
  end
ensure
  # Now we must store the deploy output
  output_dir = "#{@config['target_directory']}/logs/#{@branch}/"
  FileUtils.mkdir_p output_dir
  @cmd.store_output "#{output_dir}/#{git.last_commit}.log"
end