Class: VagrantPlugins::Unison::Command

Inherits:
Object
  • Object
show all
Includes:
UnisonSync
Defined in:
lib/vagrant-unison-morroni/command.rb

Instance Method Summary collapse

Methods included from UnisonSync

#execute_sync_command

Instance Method Details

#execute ⇒ Object 



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# File 'lib/vagrant-unison-morroni/command.rb', line 16

def execute
  with_target_vms do |machine|
    paths = UnisonPaths.new(@env, machine)
    host_path = paths.host

    sync(machine, paths)

    @env.ui.info "Watching #{host_path} for changes..."

    listener = Listen.to(host_path) do |modified, added, removed|
      @env.ui.info "Detected modifications to #{modified.inspect}" unless modified.empty?
      @env.ui.info "Detected new files #{added.inspect}" unless added.empty?
      @env.ui.info "Detected deleted files #{removed.inspect}" unless removed.empty?

      sync(machine, paths)
    end

    queue = Queue.new

    callback = lambda do
      # This needs to execute in another thread because Thread
      # synchronization can't happen in a trap context.
      Thread.new { queue << true }
    end

    # Run the listener in a busy block so that we can cleanly
    # exit once we receive an interrupt.
    Vagrant::Util::Busy.busy(callback) do
      listener.start
      queue.pop
      listener.stop if listener.listen?
    end
  end

  0
end

#sync(machine, paths) ⇒ Object 



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# File 'lib/vagrant-unison-morroni/command.rb', line 53

def sync(machine, paths)
  execute_sync_command(machine) do |command|
    command.batch = true

    @env.ui.info "Running #{command.to_s}"

    r = Vagrant::Util::Subprocess.execute(*command.to_a)

    case r.exit_code
    when 0
      @env.ui.info "Unison completed succesfully"
    when 1
      @env.ui.info "Unison completed - all file transfers were successful; some files were skipped"
    when 2
      @env.ui.info "Unison completed - non-fatal failures during file transfer: #{r.stderr}"
    else
      raise Vagrant::Errors::UnisonError,
        :command => command.to_s,
        :guestpath => paths.guest,
        :hostpath => paths.host,
        :stderr => r.stderr
    end
  end
end