Class: KnifeSpork::SporkPromote

Inherits:
Chef::Knife
  • Object
show all
Includes:
Runner
Defined in:
lib/chef/knife/spork-promote.rb

Instance Method Summary collapse

Methods included from Runner

included

Instance Method Details

#check_cookbook_uploaded(cookbook_name) ⇒ Object 



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# File 'lib/chef/knife/spork-promote.rb', line 143

def check_cookbook_uploaded(cookbook_name)
  validate_version!(config[:version])
  version = config[:version] || load_cookbook(cookbook_name).version

  environment = config[:environment]
  api_endpoint = environment ? "environments/#{environment}/cookbooks/#{cookbook_name}/#{version}" : "cookbooks/#{cookbook_name}/#{version}"

  begin
    cookbooks = rest.get_rest(api_endpoint)
  rescue Net::HTTPServerException => e
    ui.error "#{cookbook_name}@#{version} does not exist on Chef Server! Upload the cookbook first by running:\n\n\tknife spork upload #{cookbook_name}\n\n"
    exit(1)
  end
end

#promote(environment, cookbook_names) ⇒ Object 



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# File 'lib/chef/knife/spork-promote.rb', line 131

def promote(environment, cookbook_names)
  cookbook_names = [cookbook_names].flatten

  cookbook_names.each do |cookbook_name|
    validate_version!(config[:version])
    version = config[:version] || load_cookbook(cookbook_name).version

    ui.msg "Adding version constraint #{cookbook_name} = #{version}"
    update_version_constraints(environment, cookbook_name, version)
  end
end

#run ⇒ Object 



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# File 'lib/chef/knife/spork-promote.rb', line 22

def run
  self.config = Chef::Config.merge!(config)

  if @name_args.empty?
    show_usage
    ui.error("You must specify the cookbook and environment to promote to")
    exit 1
  end

  #First load so plugins etc know what to work with
  @environments, @cookbook = load_environments_and_cookbook

  run_plugins(:before_promote)

  #Reload cookbook and env in case a VCS plugin found updates
  @environments, @cookbook = load_environments_and_cookbook

  check_cookbook_uploaded(@cookbook)

  @environments.each do |e|
    environment = load_environment(e)

    if @cookbook == 'all'
      ui.msg "Promoting ALL cookbooks to environment #{environment}"
      promote(environment, all_cookbooks)
    else
      promote(environment, @cookbook)
    end

    ui.msg "Saving changes to #{e}.json"

    new_environment_json = pretty_print_json(environment)
    save_environment_changes(e, new_environment_json)

    if config[:remote]
      ui.msg "Uploading #{environment.name}.json to Chef Server"
      save_environment_changes_remote(e)
      ui.info "Promotion complete at #{Time.now}!"
    else
      ui.info "Promotion complete. Don't forget to upload your changed #{environment.name}.json to Chef Server"
    end
  end
  run_plugins(:after_promote_local)
  if config[:remote]
    run_plugins(:after_promote_remote)
  end
end

#save_environment_changes(environment, json) ⇒ Object 



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# File 'lib/chef/knife/spork-promote.rb', line 124

def save_environment_changes(environment, json)
  environments_path = cookbook_path.gsub('cookbooks', 'environments')
  environment_path = File.expand_path( File.join(environments_path, "#{environment}.json") )

  File.open(environment_path, 'w'){ |f| f.puts(json) }
end

#save_environment_changes_remote(environment) ⇒ Object 



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# File 'lib/chef/knife/spork-promote.rb', line 75

def save_environment_changes_remote(environment)
  local_environment = load_environment(environment)
  remote_environment = load_remote_environment(environment)
  @environment_diffs ||= Hash.new
  @environment_diffs["#{environment}"] = environment_diff(local_environment, remote_environment)
  
  version_change_threshold = spork_config.version_change_threshold || 2
  env_constraints_diff = constraints_diff(@environment_diffs["#{environment}"]).select{|k,v| v > version_change_threshold}
  
  if env_constraints_diff.size !=0 then
    ui.warn 'You\'re about to promote a significant version number change to 1 or more cookbooks:'
    ui.warn @environment_diffs["#{environment}"].select{|k,v|env_constraints_diff.has_key?(k)}.collect{|k,v| "\t#{k}: #{v}"}.join("\n")

    begin
      ui.confirm('Are you sure you want to continue?')
    rescue SystemExit => e
      if e.status == 3
        ui.confirm("Would you like to reset your local #{environment}.json to match the remote server?")
        tmp = Chef::Environment.load(environment)
        save_environment_changes(environment, pretty_print_json(tmp))
        ui.info "#{environment}.json was reset"
      end

      raise
    end
  end
  
  if  @environment_diffs["#{environment}"].size > 1
    ui.msg ""
    ui.warn "You're about to promote changes to several cookbooks at once:"
    ui.warn @environment_diffs["#{environment}"].collect{|k,v| "\t#{k}: #{v}"}.join("\n")

    begin
      ui.confirm('Are you sure you want to continue?')
    rescue SystemExit => e
      if e.status == 3
        ui.confirm("Would you like to reset your local #{environment}.json to match the remote server?")
        tmp = Chef::Environment.load(environment)
        save_environment_changes(environment, pretty_print_json(tmp))
        ui.info "#{environment}.json was reset"
      end

      raise
    end
  end

  local_environment.save
end

#update_version_constraints(environment, cookbook, new_version) ⇒ Object 



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# File 'lib/chef/knife/spork-promote.rb', line 70

def update_version_constraints(environment, cookbook, new_version)
  validate_version!(new_version)
  environment.cookbook_versions[cookbook] = "= #{new_version}"
end