Exemple #1
0
def main(argv=sys.argv):
    try:
        options, args = parse_options(argv)
        if args:
            if options['show_screen_log']:
                logfile = nm.ScreenHandler.getScreenLogFile(
                    node=options['show_screen_log'])
                p = subprocess.Popen(
                    shlex.split(' '.join(
                        [nm.Settings.LOG_VIEWER,
                         str(logfile)])))
                p.wait()
            elif options['show_ros_log']:
                logfile = nm.ScreenHandler.getROSLogFile(
                    node=options['show_ros_log'])
                p = subprocess.Popen(
                    shlex.split(' '.join(
                        [nm.Settings.LOG_VIEWER,
                         str(logfile)])))
                p.wait()
            elif options['ros_log_path']:
                if options['ros_log_path'] == '[]':
                    print nm.get_ros_home()
                else:
                    print nm.ScreenHandler.getScreenLogFile(
                        node=options['ros_log_path'])
            elif options['delete_logs']:
                logfile = nm.ScreenHandler.getScreenLogFile(
                    node=options['delete_logs'])
                pidfile = nm.ScreenHandler.getScreenPidFile(
                    node=options['delete_logs'])
                roslog = nm.ScreenHandler.getROSLogFile(
                    node=options['delete_logs'])
                if os.path.isfile(logfile):
                    os.remove(logfile)
                if os.path.isfile(pidfile):
                    os.remove(pidfile)
                if os.path.isfile(roslog):
                    os.remove(roslog)
            elif options['node_type'] and options['package'] and options[
                    'node_name']:
                runNode(options['package'],
                        options['node_type'],
                        options['node_name'],
                        args,
                        options['prefix'],
                        options['node_respawn'],
                        options['masteruri'],
                        loglevel=options['loglevel'])
            elif options['pidkill']:
                import signal
                os.kill(int(options['pidkill']), signal.SIGKILL)
            elif options['package']:
                print roslib.packages.get_pkg_dir(options['package'])
        else:
            parser = _get_optparse()
            parser.print_help()
            time.sleep(3)
    except Exception, e:
        print >> sys.stderr, e
def runNode(package, type, name, args, prefix='', repawn=False, masteruri=None):
  '''
  Runs a ROS node. Starts a roscore if needed.
  '''
  if not masteruri: 
    masteruri = _masteruri_from_ros()
  #start roscore, if needed
  try:
    master = xmlrpclib.ServerProxy(masteruri)
    master.getUri('remote_nm')
  except:
    # run a roscore
    # at this time roscore is available to handle the warning message :/
#    rospy.logwarn("no master found, starting new one")
    from urlparse import urlparse
    master_port = str(urlparse(masteruri).port)
    new_env = dict(os.environ)
    new_env['ROS_MASTER_URI'] = masteruri
    cmd_args = [nm.ScreenHandler.getSceenCmd(''.join(['/roscore', '--', master_port])), 'roscore', '--port', master_port]
    subprocess.Popen(shlex.split(' '.join([str(c) for c in cmd_args])), env=new_env)
    # wait for roscore to avoid connection problems while init_node
    result = -1
    count = 0
    while result == -1 and count < 30:
      try:
        master = xmlrpclib.ServerProxy(masteruri)
        result, uri, msg = master.getUri('remote_nm')
      except:
        time.sleep(1)
        count += 1
  # start node
  try:
    cmd = roslib.packages.find_node(package, type)
  except roslib.packages.ROSPkgException as e:
    # multiple nodes, invalid package
    raise nm.StartException(str(e))
  # handle different result types str or array of string (electric / fuerte)
  import types
  if isinstance(cmd, types.StringTypes):
    cmd = [cmd]
  if cmd is None or len(cmd) == 0:
    raise nm.StartException(' '.join([type, 'in package [', package, '] not found!\n\nThe package was created?\nIs the binary executable?\n']))
  # create string for node parameter. Set arguments with spaces into "'".
  node_params = ' '.join(''.join(["'", a, "'"]) if a.find(' ') > -1 else a for a in args[1:])
  cmd_args = [nm.ScreenHandler.getSceenCmd(name), nm.RESPAWN_SCRIPT if repawn else '', prefix, cmd[0], node_params]
  print 'run on remote host:', ' '.join(cmd_args)
  # determine the current working path
  arg_cwd = getCwdArg('__cwd', args) 
  cwd = nm.get_ros_home()
  if not (arg_cwd is None):
    if arg_cwd == 'ROS_HOME':
      cwd = nm.get_ros_home()
    elif arg_cwd == 'node':
      cwd = os.path.dirname(cmd[0])
  # set the masteruri to launch with other one master
  new_env = dict(os.environ)
  new_env['ROS_MASTER_URI'] = masteruri
  subprocess.Popen(shlex.split(str(' '.join(cmd_args))), cwd=cwd, env=new_env)
def runNode(package,
            type,
            name,
            args,
            prefix='',
            repawn=False,
            masteruri=None):
    '''
  Runs a ROS node. Starts a roscore if needed.
  '''
    if not masteruri:
        masteruri = nm.masteruri_from_ros()
    #start roscore, if needed
    nm.StartHandler._prepareROSMaster(masteruri)
    # start node
    try:
        cmd = roslib.packages.find_node(package, type)
    except roslib.packages.ROSPkgException as e:
        # multiple nodes, invalid package
        raise nm.StartException(str(e))
    # handle different result types str or array of string (electric / fuerte)
    import types
    if isinstance(cmd, types.StringTypes):
        cmd = [cmd]
    if cmd is None or len(cmd) == 0:
        raise nm.StartException(' '.join([
            type, 'in package [', package,
            '] not found!\n\nThe package was created?\nIs the binary executable?\n'
        ]))
    # create string for node parameter. Set arguments with spaces into "'".
    node_params = ' '.join(''.join(["'", a, "'"]) if a.find(' ') > -1 else a
                           for a in args[1:])
    cmd_args = [
        nm.ScreenHandler.getSceenCmd(name),
        nm.RESPAWN_SCRIPT if repawn else '', prefix, cmd[0], node_params
    ]
    print 'run on remote host:', ' '.join(cmd_args)
    # determine the current working path
    arg_cwd = getCwdArg('__cwd', args)
    cwd = nm.get_ros_home()
    if not (arg_cwd is None):
        if arg_cwd == 'ROS_HOME':
            cwd = nm.get_ros_home()
        elif arg_cwd == 'node':
            cwd = os.path.dirname(cmd[0])
    # set the masteruri to launch with other one master
    new_env = dict(os.environ)
    new_env['ROS_MASTER_URI'] = masteruri
    subprocess.Popen(shlex.split(str(' '.join(cmd_args))),
                     cwd=cwd,
                     env=new_env)
def main(argv=sys.argv):
  try:
#    (options, args) = parser.parse_args(argv)
    options, args = parse_options(argv)
#    print "ARGS", args
#    print 'OPTIONS:', options
    if args:
      if options['show_screen_log']:
        logfile = nm.ScreenHandler.getScreenLogFile(node=options['show_screen_log'])
        p = subprocess.Popen(shlex.split(' '.join([nm.Settings.LOG_VIEWER, str(logfile)])))
        p.wait()
      elif options['show_ros_log']:
        logfile = nm.ScreenHandler.getROSLogFile(node=options['show_ros_log'])
        p = subprocess.Popen(shlex.split(' '.join([nm.Settings.LOG_VIEWER, str(logfile)])))
        p.wait()
      elif options['ros_log_path']:
        if options['ros_log_path'] == '[]':
          print nm.get_ros_home()
        else:
          print nm.ScreenHandler.getScreenLogFile(node=options['ros_log_path'])
      elif options['delete_logs']:
        logfile = nm.ScreenHandler.getScreenLogFile(node=options['delete_logs'])
        pidfile = nm.ScreenHandler.getScreenPidFile(node=options['delete_logs'])
        roslog = nm.ScreenHandler.getROSLogFile(node=options['delete_logs'])
        if os.path.isfile(logfile):
          os.remove(logfile)
        if os.path.isfile(pidfile):
          os.remove(pidfile)
        if os.path.isfile(roslog):
          os.remove(roslog)
      elif options['node_type'] and options['package'] and options['node_name']:
        runNode(options['package'], options['node_type'], options['node_name'], 
                args, options['prefix'], options['node_respawn'], options['masteruri'])
      elif options['pidkill']:
        import signal
        os.kill(int(options['pidkill']), signal.SIGKILL)
      elif options['package']:
        print roslib.packages.get_pkg_dir(options['package'])
    else:
      parser = _get_optparse()
      parser.print_help()
      time.sleep(3)
    
  except Exception, e:
    print >> sys.stderr, e
Exemple #5
0
def runNode(package, executable, name, args, prefix='', repawn=False, masteruri=None, loglevel=''):
    '''
    Runs a ROS node. Starts a roscore if needed.
    '''
    if not masteruri:
        masteruri = nm.masteruri_from_ros()
    # start roscore, if needed
    nm.StartHandler._prepareROSMaster(masteruri)
    # start node
    try:
        cmd = roslib.packages.find_node(package, executable)
    except roslib.packages.ROSPkgException as e:
        # multiple nodes, invalid package
        raise nm.StartException(str(e))
    # handle different result types str or array of string (electric / fuerte)
    import types
    if isinstance(cmd, types.StringTypes):
        cmd = [cmd]
    if cmd is None or len(cmd) == 0:
        raise nm.StartException(' '.join([executable, 'in package [', package, '] not found!\n\nThe package was created?\nIs the binary executable?\n']))
    # create string for node parameter. Set arguments with spaces into "'".
    node_params = ' '.join(''.join(["'", a, "'"]) if a.find(' ') > -1 else a for a in args[1:])
    cmd_args = [nm.ScreenHandler.getSceenCmd(name), nm.Settings.RESPAWN_SCRIPT if repawn else '', prefix, cmd[0], node_params]
    print 'run on remote host:', ' '.join(cmd_args)
    # determine the current working path
    arg_cwd = getCwdArg('__cwd', args)
    cwd = nm.get_ros_home()
    if not (arg_cwd is None):
        if arg_cwd == 'ROS_HOME':
            cwd = nm.get_ros_home()
        elif arg_cwd == 'node':
            cwd = os.path.dirname(cmd[0])
    # set the masteruri to launch with other one master
    new_env = dict(os.environ)
    new_env['ROS_MASTER_URI'] = masteruri
    ros_hostname = nm.get_ros_hostname(masteruri)
    if ros_hostname:
        new_env['ROS_HOSTNAME'] = ros_hostname
    if loglevel:
        new_env['ROSCONSOLE_CONFIG_FILE'] = rosconsole_cfg_file(package)
    subprocess.Popen(shlex.split(str(' '.join(cmd_args))), cwd=cwd, env=new_env)
    if len(cmd) > 1:
        rospy.logwarn('Multiple executables are found! The first one was started! Exceutables:\n%s', str(cmd))
  def runNode(cls, node, launch_config, force2host=None, masteruri=None):
    '''
    Start the node with given name from the given configuration.
    @param node: the name of the node (with name space)
    @type node: C{str}
    @param launch_config: the configuration containing the node
    @type launch_config: L{LaunchConfig} 
    @param force2host: start the node on given host.
    @type force2host: L{str} 
    @param masteruri: force the masteruri.
    @type masteruri: L{str} 
    @raise StartException: if the screen is not available on host.
    @raise Exception: on errors while resolving host
    @see: L{node_manager_fkie.is_local()}
    '''
    n = launch_config.getNode(node)
    if n is None:
      raise StartException(''.join(["Node '", node, "' not found!"]))
    
    env = list(n.env_args)
    prefix = n.launch_prefix if not n.launch_prefix is None else ''
    if prefix.lower() == 'screen' or prefix.lower().find('screen ') != -1:
      rospy.loginfo("SCREEN prefix removed before start!")
      prefix = ''
    args = [''.join(['__ns:=', n.namespace]), ''.join(['__name:=', n.name])]
    if not (n.cwd is None):
      args.append(''.join(['__cwd:=', n.cwd]))
    
    # add remaps
    for remap in n.remap_args:
      args.append(''.join([remap[0], ':=', remap[1]]))

    # get host of the node
    host = launch_config.hostname
    env_loader = ''
    if n.machine_name:
      machine = launch_config.Roscfg.machines[n.machine_name]
      host = machine.address
      #TODO: env-loader support?
#      if hasattr(machine, "env_loader") and machine.env_loader:
#        env_loader = machine.env_loader
    # set the host to the given host
    if not force2host is None:
      host = force2host

    if masteruri is None:
      masteruri = nm.nameres().masteruri(n.machine_name)
    # set the ROS_MASTER_URI
    if masteruri is None:
      masteruri = nm.masteruri_from_ros()
      env.append(('ROS_MASTER_URI', masteruri))

    abs_paths = list() # tuples of (parameter name, old value, new value)
    not_found_packages = list() # package names
    # set the global parameter
    if not masteruri is None and not masteruri in launch_config.global_param_done:
      global_node_names = cls.getGlobalParams(launch_config.Roscfg)
      rospy.loginfo("Register global parameter:\n%s", '\n'.join(global_node_names))
      abs_paths[len(abs_paths):], not_found_packages[len(not_found_packages):] = cls._load_parameters(masteruri, global_node_names, [])
      launch_config.global_param_done.append(masteruri)

    # add params
    if not masteruri is None:
      nodens = ''.join([n.namespace, n.name, '/'])
      params = dict()
      for param, value in launch_config.Roscfg.params.items():
        if param.startswith(nodens):
          params[param] = value
      clear_params = []
      for cparam in launch_config.Roscfg.clear_params:
        if cparam.startswith(nodens):
          clear_params.append(param)
      rospy.loginfo("Register parameter:\n%s", '\n'.join(params))
      abs_paths[len(abs_paths):], not_found_packages[len(not_found_packages):] = cls._load_parameters(masteruri, params, clear_params)
    if nm.is_local(host): 
      nm.screen().testScreen()
      try:
        cmd = roslib.packages.find_node(n.package, n.type)
      except (Exception, roslib.packages.ROSPkgException) as e:
        # multiple nodes, invalid package
        raise StartException(''.join(["Can't find resource: ", str(e)]))
      # handle diferent result types str or array of string
      import types
      if isinstance(cmd, types.StringTypes):
        cmd = [cmd]
      cmd_type = ''
      if cmd is None or len(cmd) == 0:
        raise nm.StartException(' '.join([n.type, 'in package [', n.package, '] not found!\n\nThe package was created?\nIs the binary executable?\n']))
      if len(cmd) > 1:
        # Open selection for executables
        try:
          from PySide import QtGui
          item, result = QtGui.QInputDialog.getItem(None, ' '.join(['Multiple executables', n.type, 'in', n.package]),
                                            'Select an executable',
                                            cmd, 0, False)
          if result:
            #open the selected screen
            cmd_type = item
          else:
            return
        except:
          raise nm.StartException('Multiple executables with same name in package found!')
      else:
        cmd_type = cmd[0]
      # determine the current working path, Default: the package of the node
      cwd = nm.get_ros_home()
      if not (n.cwd is None):
        if n.cwd == 'ROS_HOME':
          cwd = nm.get_ros_home()
        elif n.cwd == 'node':
          cwd = os.path.dirname(cmd_type)
#      else:
#        cwd = LaunchConfig.packageName(os.path.dirname(cmd_type))
      cls._prepareROSMaster(masteruri)
      node_cmd = [nm.RESPAWN_SCRIPT if n.respawn else '', prefix, cmd_type]
      cmd_args = [nm.screen().getSceenCmd(node)]
      cmd_args[len(cmd_args):] = node_cmd
      cmd_args.append(str(n.args))
      cmd_args[len(cmd_args):] = args
      rospy.loginfo("RUN: %s", ' '.join(cmd_args))
      if not masteruri is None:
        new_env=dict(os.environ)
        new_env['ROS_MASTER_URI'] = masteruri
        ps = subprocess.Popen(shlex.split(str(' '.join(cmd_args))), cwd=cwd, env=new_env)
      else:
        ps = subprocess.Popen(shlex.split(str(' '.join(cmd_args))), cwd=cwd)
      # wait for process to avoid 'defunct' processes
      thread = threading.Thread(target=ps.wait)
      thread.setDaemon(True)
      thread.start()
    else:
      # start remote
      if launch_config.PackageName is None:
        raise StartException(''.join(["Can't run remote without a valid package name!"]))
      # thus the prefix parameters while the transfer are not separated
      if prefix:
        prefix = ''.join(['"', prefix, '"'])
      # setup environment
      env_command = ''
      if env_loader:
        rospy.logwarn("env_loader in machine tag currently not supported")
        raise nm.StartException("env_loader in machine tag currently not supported")
      if env:
        env_command = "env "+' '.join(["%s=%s"%(k,v) for (k, v) in env])
      
      startcmd = [env_command, nm.STARTER_SCRIPT, 
                  '--package', str(n.package),
                  '--node_type', str(n.type),
                  '--node_name', str(node),
                  '--node_respawn true' if n.respawn else '']
      if not masteruri is None:
        startcmd.append('--masteruri')
        startcmd.append(masteruri)
      if prefix:
        startcmd[len(startcmd):] = ['--prefix', prefix]
      
      #rename the absolute paths in the args of the node
      node_args = []
      for a in n.args.split():
        a_value, is_abs_path, found, package = cls._resolve_abs_paths(a, host)
        node_args.append(a_value)
        if is_abs_path:
          abs_paths.append(('ARGS', a, a_value))
          if not found and package:
            not_found_packages.append(package)

      startcmd[len(startcmd):] = node_args
      startcmd[len(startcmd):] = args
      rospy.loginfo("Run remote on %s: %s", host, str(' '.join(startcmd)))
      (stdin, stdout, stderr), ok = nm.ssh().ssh_exec(host, startcmd)

      if ok:
        stdin.close()
  #      stderr.close()
  #      stdout.close()
        error = stderr.read()
        if error:
          rospy.logwarn("ERROR while start '%s': %s", node, error)
          raise nm.StartException(str(''.join(['The host "', host, '" reports:\n', error])))
        output = stdout.read()
        if output:
          rospy.loginfo("STDOUT while start '%s': %s", node, output)
      # inform about absolute paths in parameter value
      if len(abs_paths) > 0:
        rospy.loginfo("Absolute paths found while start:\n%s", str('\n'.join([''.join([p, '\n  OLD: ', ov, '\n  NEW: ', nv]) for p, ov, nv in abs_paths])))

      if len(not_found_packages) > 0:
        packages = '\n'.join(not_found_packages)
        raise nm.StartException(str('\n'.join(['Some absolute paths are not renamed because following packages are not found on remote host:', packages])))
Exemple #7
0
    def runNode(cls,
                node,
                launch_config,
                force2host=None,
                masteruri=None,
                auto_pw_request=False,
                user=None,
                pw=None):
        '''
    Start the node with given name from the given configuration.
    @param node: the name of the node (with name space)
    @type node: C{str}
    @param launch_config: the configuration containing the node
    @type launch_config: L{LaunchConfig} 
    @param force2host: start the node on given host.
    @type force2host: L{str} 
    @param masteruri: force the masteruri.
    @type masteruri: L{str} 
    @raise StartException: if the screen is not available on host.
    @raise Exception: on errors while resolving host
    @see: L{node_manager_fkie.is_local()}
    '''
        #'print "RUN node", node, time.time()
        n = launch_config.getNode(node)
        if n is None:
            raise StartException(''.join(["Node '", node, "' not found!"]))

        env = list(n.env_args)
        prefix = n.launch_prefix if not n.launch_prefix is None else ''
        if prefix.lower() == 'screen' or prefix.lower().find('screen ') != -1:
            rospy.loginfo("SCREEN prefix removed before start!")
            prefix = ''
        args = [
            ''.join(['__ns:=', n.namespace]), ''.join(['__name:=', n.name])
        ]
        if not (n.cwd is None):
            args.append(''.join(['__cwd:=', n.cwd]))

        # add remaps
        for remap in n.remap_args:
            args.append(''.join([remap[0], ':=', remap[1]]))

        # get host of the node
        host = launch_config.hostname
        env_loader = ''
        if n.machine_name:
            machine = launch_config.Roscfg.machines[n.machine_name]
            host = machine.address
            #TODO: env-loader support?
#      if hasattr(machine, "env_loader") and machine.env_loader:
#        env_loader = machine.env_loader
# set the host to the given host
        if not force2host is None:
            host = force2host

        if masteruri is None:
            masteruri = nm.nameres().masteruri(n.machine_name)
        # set the ROS_MASTER_URI
        if masteruri is None:
            masteruri = nm.masteruri_from_ros()
            env.append(('ROS_MASTER_URI', masteruri))

        abs_paths = list()  # tuples of (parameter name, old value, new value)
        not_found_packages = list()  # package names
        # set the global parameter
        if not masteruri is None and not masteruri in launch_config.global_param_done:
            global_node_names = cls.getGlobalParams(launch_config.Roscfg)
            rospy.loginfo("Register global parameter:\n%s",
                          '\n'.join(global_node_names))
            abs_paths[len(abs_paths):], not_found_packages[
                len(not_found_packages):] = cls._load_parameters(
                    masteruri, global_node_names, [])
            launch_config.global_param_done.append(masteruri)

        # add params
        if not masteruri is None:
            nodens = ''.join([n.namespace, n.name, '/'])
            params = dict()
            for param, value in launch_config.Roscfg.params.items():
                if param.startswith(nodens):
                    params[param] = value
            clear_params = []
            for cparam in launch_config.Roscfg.clear_params:
                if cparam.startswith(nodens):
                    clear_params.append(param)
            rospy.loginfo("Register parameter:\n%s", '\n'.join(params))
            abs_paths[len(abs_paths):], not_found_packages[
                len(not_found_packages):] = cls._load_parameters(
                    masteruri, params, clear_params)
        #'print "RUN prepared", node, time.time()

        if nm.is_local(host):
            nm.screen().testScreen()
            try:
                cmd = roslib.packages.find_node(n.package, n.type)
            except (Exception, roslib.packages.ROSPkgException) as e:
                # multiple nodes, invalid package
                raise StartException(''.join(["Can't find resource: ",
                                              str(e)]))
            # handle diferent result types str or array of string
            import types
            if isinstance(cmd, types.StringTypes):
                cmd = [cmd]
            cmd_type = ''
            if cmd is None or len(cmd) == 0:
                raise StartException(' '.join([
                    n.type, 'in package [', n.package,
                    '] not found!\n\nThe package was created?\nIs the binary executable?\n'
                ]))
            if len(cmd) > 1:
                # Open selection for executables
                try:
                    from PySide import QtGui
                    item, result = QtGui.QInputDialog.getItem(
                        None, ' '.join(
                            ['Multiple executables', n.type, 'in', n.package]),
                        'Select an executable', cmd, 0, False)
                    if result:
                        #open the selected screen
                        cmd_type = item
                    else:
                        return
                except:
                    raise StartException(
                        'Multiple executables with same name in package found!'
                    )
            else:
                cmd_type = cmd[0]
            # determine the current working path, Default: the package of the node
            cwd = nm.get_ros_home()
            if not (n.cwd is None):
                if n.cwd == 'ROS_HOME':
                    cwd = nm.get_ros_home()
                elif n.cwd == 'node':
                    cwd = os.path.dirname(cmd_type)
#      else:
#        cwd = LaunchConfig.packageName(os.path.dirname(cmd_type))
            cls._prepareROSMaster(masteruri)
            node_cmd = [
                nm.RESPAWN_SCRIPT if n.respawn else '', prefix, cmd_type
            ]
            cmd_args = [nm.screen().getSceenCmd(node)]
            cmd_args[len(cmd_args):] = node_cmd
            cmd_args.append(str(n.args))
            cmd_args[len(cmd_args):] = args
            rospy.loginfo("RUN: %s", ' '.join(cmd_args))
            if not masteruri is None:
                new_env = dict(os.environ)
                new_env['ROS_MASTER_URI'] = masteruri
                ps = subprocess.Popen(shlex.split(str(' '.join(cmd_args))),
                                      cwd=cwd,
                                      env=new_env)
            else:
                ps = subprocess.Popen(shlex.split(str(' '.join(cmd_args))),
                                      cwd=cwd)
            # wait for process to avoid 'defunct' processes
            thread = threading.Thread(target=ps.wait)
            thread.setDaemon(True)
            thread.start()
        else:
            #'print "RUN REMOTE", node, time.time()
            # start remote
            if launch_config.PackageName is None:
                raise StartException(''.join(
                    ["Can't run remote without a valid package name!"]))
            # thus the prefix parameters while the transfer are not separated
            if prefix:
                prefix = ''.join(['"', prefix, '"'])
            # setup environment
            env_command = ''
            if env_loader:
                rospy.logwarn(
                    "env_loader in machine tag currently not supported")
                raise StartException(
                    "env_loader in machine tag currently not supported")
            if env:
                env_command = "env " + ' '.join(
                    ["%s=%s" % (k, v) for (k, v) in env])

            startcmd = [
                env_command, nm.STARTER_SCRIPT, '--package',
                str(n.package), '--node_type',
                str(n.type), '--node_name',
                str(node), '--node_respawn true' if n.respawn else ''
            ]
            if not masteruri is None:
                startcmd.append('--masteruri')
                startcmd.append(masteruri)
            if prefix:
                startcmd[len(startcmd):] = ['--prefix', prefix]

            #rename the absolute paths in the args of the node
            node_args = []
            try:
                for a in n.args.split():
                    a_value, is_abs_path, found, package = cls._resolve_abs_paths(
                        a, host)
                    node_args.append(a_value)
                    if is_abs_path:
                        abs_paths.append(('ARGS', a, a_value))
                        if not found and package:
                            not_found_packages.append(package)

                startcmd[len(startcmd):] = node_args
                startcmd[len(startcmd):] = args
                rospy.loginfo("Run remote on %s: %s", host,
                              str(' '.join(startcmd)))
                #'print "RUN CALL", node, time.time()
                output, error, ok = nm.ssh().ssh_exec(host, startcmd, user, pw,
                                                      auto_pw_request)
                #'print "RUN CALLOK", node, time.time()
            except nm.AuthenticationRequest as e:
                raise nm.InteractionNeededError(
                    e, cls.runNode, (node, launch_config, force2host,
                                     masteruri, auto_pw_request))

            if ok:
                if error:
                    rospy.logwarn("ERROR while start '%s': %s", node, error)
                    raise StartException(
                        str(''.join(
                            ['The host "', host, '" reports:\n', error])))
                if output:
                    rospy.loginfo("STDOUT while start '%s': %s", node, output)
            # inform about absolute paths in parameter value
            if len(abs_paths) > 0:
                rospy.loginfo(
                    "Absolute paths found while start:\n%s",
                    str('\n'.join([
                        ''.join([p, '\n  OLD: ', ov, '\n  NEW: ', nv])
                        for p, ov, nv in abs_paths
                    ])))

            if len(not_found_packages) > 0:
                packages = '\n'.join(not_found_packages)
                raise StartException(
                    str('\n'.join([
                        'Some absolute paths are not renamed because following packages are not found on remote host:',
                        packages
                    ])))