middleman/middleman-core/lib/middleman-core/cli/bundler.rb

# CLI Module
module Middleman::Cli

  # A initializing Bundler
  class Bundle < Thor
    include Thor::Actions
    check_unknown_options!

    namespace :bundle

    desc "bundle", "Setup initial bundle", :hide => true

    # The setup task
    def bundle
      run('bundle install')#, :capture => true)
    end
  end

  # A upgrading Bundler
  class Upgrade < Thor
    include Thor::Actions
    check_unknown_options!

    namespace :upgrade

    desc "upgrade", "Upgrade installed bundle"

    # The upgrade task
    def upgrade
      inside(ENV["MM_ROOT"]) do
        run('bundle update')#, :capture => true)
      end
    end
  end

  # Map "u" to "upgrade"
  Base.map({
    "u" => "upgrade"
  })
end