Class: Bundler::Deployment

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

Class Method Summary collapse

Class Method Details

.define_task(context, task_method = :task, opts = {}) ⇒ Object



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# File 'lib/bundler/deployment.rb', line 3

def self.define_task(context, task_method = :task, opts = {})
  if defined?(Capistrano) && context.is_a?(Capistrano::Configuration)
    context_name = "capistrano"
    role_default = "{:except => {:no_release => true}}"
    error_type = ::Capistrano::CommandError
  else
    context_name = "vlad"
    role_default = "[:app]"
    error_type = ::Rake::CommandFailedError
  end

  roles = context.fetch(:bundle_roles, false)
  opts[:roles] = roles if roles

  context.send :namespace, :bundle do
    send :desc, "Install the current Bundler environment. By default, gems will be \\\ninstalled to the shared/bundle path. Gems in the development and \\\ntest group will not be installed. The install command is executed \\\nwith the --deployment and --quiet flags. If the bundle cmd cannot \\\nbe found then you can override the bundle_cmd variable to specify \\\nwhich one it should use. The base path to the app is fetched from \\\nthe :latest_release variable. Set it for custom deploy layouts.\n\nYou can override any of these defaults by setting the variables shown below.\n\nN.B. bundle_roles must be defined before you require 'bundler/\#{context_name}' \\\nin your deploy.rb file.\n\nset :bundle_gemfile,  \"Gemfile\"\nset :bundle_dir,      File.join(fetch(:shared_path), 'bundle')\nset :bundle_flags,    \"--deployment --quiet\"\nset :bundle_without,  [:development, :test]\nset :bundle_with,     [:mysql]\nset :bundle_cmd,      \"bundle\" # e.g. \"/opt/ruby/bin/bundle\"\nset :bundle_roles,    \#{role_default} # e.g. [:app, :batch]\n"
    send task_method, :install, opts do
      bundle_cmd     = context.fetch(:bundle_cmd, "bundle")
      bundle_flags   = context.fetch(:bundle_flags, "--deployment --quiet")
      bundle_dir     = context.fetch(:bundle_dir, File.join(context.fetch(:shared_path), 'bundle'))
      bundle_gemfile = context.fetch(:bundle_gemfile, "Gemfile")
      bundle_without = [*context.fetch(:bundle_without, [:development, :test])].compact
      bundle_with    = [*context.fetch(:bundle_with, [])].compact
      app_path = context.fetch(:latest_release)
      if app_path.to_s.empty?
        raise error_type.new("Cannot detect current release path - make sure you have deployed at least once.")
      end
      args = ["--gemfile #{File.join(app_path, bundle_gemfile)}"]
      args << "--path #{bundle_dir}" unless bundle_dir.to_s.empty?
      args << bundle_flags.to_s
      args << "--without #{bundle_without.join(" ")}" unless bundle_without.empty?
      args << "--with #{bundle_with.join(" ")}" unless bundle_with.empty?

      run "cd #{app_path} && #{bundle_cmd} install #{args.join(' ')}"
    end
  end
end