Module: Capistrano::Baptize::DSL

Defined in:
lib/baptize/dsl.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.packages_installed ⇒ Object 



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# File 'lib/baptize/dsl.rb', line 100

def self.packages_installed
  @packages_installed ||= []
end

.packages_installed=(value) ⇒ Object 



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# File 'lib/baptize/dsl.rb', line 104

def self.packages_installed=(value)
  @packages_installed = value
end

.policies ⇒ Object 



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# File 'lib/baptize/dsl.rb', line 108

def self.policies
  @policies ||= {}
end

Instance Method Details

#package(package_name, &block) ⇒ Object 



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# File 'lib/baptize/dsl.rb', line 142

def package(package_name, &block)
  package = PackageDefinition.new(package_name, self)
  package.instance_eval &block
  namespace :baptize do
    namespace :packages do
      desc "[package] #{package.description}" if package.description
      task package.name do
        # Cap doesn't track if a task has already been applied - we need to do this
        unless Capistrano::Baptize::DSL.packages_installed.include? package.name
          Capistrano::Baptize::DSL.packages_installed << package.name
          instance_eval(&package.before_block) if package.before_block
          if package.verify_block
            logger.debug "Verifying package #{package.name}"
            already_installed = begin
                                  instance_eval(&package.verify_block)
                                  true
                                rescue VerificationFailure => err
                                  false
                                end
            if already_installed
              logger.info "Skipping previously installed package #{package.name}"
            else
              logger.info "Installing package #{package.name}"
              instance_eval(&package.install_block)
              instance_eval(&package.verify_block)
            end
          elsif package.install_block
            # logger.important "WARNING: `verify` block not implemented for package #{package.name}."
            logger.info "Installing package #{package.name}"
            instance_eval(&package.install_block)
          else
            # logger.important "WARNING: `install` block not implemented for package #{package.name}."
            logger.info "Nothing to do for package #{package.name}"
          end
          instance_eval(&package.after_block) if package.after_block
        end
      end
    end
  end
  package.dependencies.each do |task_name|
    before package.full_name, task_name
  end
end

#policy(role_names, &block) ⇒ Object 



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# File 'lib/baptize/dsl.rb', line 112

def policy(role_names, &block)
  Array(role_names).flatten.each do |role_name|
    if Capistrano::Baptize::DSL.policies[role_name]
      policy = Capistrano::Baptize::DSL.policies[role_name]
      policy.instance_eval &block
    else
      Capistrano::Baptize::DSL.policies[role_name] = PolicyDefinition.new(role_name, self)
      policy = Capistrano::Baptize::DSL.policies[role_name]
      policy.instance_eval &block
      namespace :baptize do
        namespace :policies do
          desc "Configures #{policy.role}"
          task policy.role do
            logger.info "Applying policy #{policy.role}"
            # TODO: This is maybe not ideal, as multiple roles would be applied in sequence, not parallel.
            # Also, I'm not sure if they would be skipped for later roles, if already run for an earlier one
            Capistrano::Baptize::DSL.packages_installed = []
            for_roles policy.role do
              policy.dependencies.each do |task_name|
                find_and_execute_task(task_name)
              end
            end
          end
        end
      end
      after "baptize:install", policy.full_name
    end
  end
end