Class: VagrantPlugins::Unison::Command

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

Instance Method Summary collapse

Instance Method Details

#execute ⇒ Object 



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# File 'lib/vagrant-unison/command.rb', line 9

def execute
  
  with_target_vms do |machine|
    hostpath, guestpath = init_paths machine

    trigger_unison_sync machine

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

    Listen.to(hostpath) 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?
      
      trigger_unison_sync machine
    end
  end

  0  #all is well
end

#init_paths(machine) ⇒ Object 



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# File 'lib/vagrant-unison/command.rb', line 30

def init_paths(machine)
    hostpath  = File.expand_path(machine.config.sync.host_folder, @env.root_path)
    guestpath = machine.config.sync.guest_folder

    # Make sure there is a trailing slash on the host path to
    # avoid creating an additional directory with rsync
    hostpath = "#{hostpath}/" if hostpath !~ /\/$/

    [hostpath, guestpath]
end

#trigger_unison_sync(machine) ⇒ Object 



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# File 'lib/vagrant-unison/command.rb', line 41

def trigger_unison_sync(machine)
  hostpath, guestpath = init_paths machine

  @env.ui.info "Unisoning changes from {host}::#{hostpath} --> {guest VM}::#{guestpath}"

  ssh_info = machine.ssh_info

  # Create the guest path
  machine.communicate.sudo("mkdir -p '#{guestpath}'")
  machine.communicate.sudo("chown #{ssh_info[:username]} '#{guestpath}'")

  # Unison over to the guest path using the SSH info
  command = [
    "unison", "-batch",
    "-ignore=Name {.git*,.vagrant/,*.DS_Store}",
    "-sshargs", "-p #{ssh_info[:port]} -o StrictHostKeyChecking=no -i #{ssh_info[:private_key_path]}",
    hostpath,
    "ssh://#{ssh_info[:username]}@#{ssh_info[:host]}/#{guestpath}"
   ]

  r = Vagrant::Util::Subprocess.execute(*command)
  if r.exit_code != 0
    raise Vagrant::Errors::UnisonError,
      :command => command.inspect,
      :guestpath => guestpath,
      :hostpath => hostpath,
      :stderr => r.stderr
  end
end