Ejemplo n.º 1
0
def handle_inspect(**kwargs):
    """ Handle inspect actions.

    Args:
        **kwargs (dict): Arguments
    """
    default_args = {
        'input': None
    }

    default_args.update(kwargs)

    args = dict_to_namedtuple(default_args)

    # split input path
    dirname, basename = os.path.split(unicode(args.input))

    # open input filesystem
    try:
        in_fs = OSFS(dirname)

        if in_fs.isfile(basename):
            inspect_file(in_fs.getsyspath(basename))
        elif in_fs.isdir(basename):
            inspect_dir(in_fs.opendir(basename))
    except CreateFailed:
        console.error('Input {} does not exist.'.format(args.input))

        return
def main():
    parser = argparse.ArgumentParser(description='Create free editor.slf')
    parser.add_argument('original', help="Original editor.slf")
    parser.add_argument(
        '-o',
        '--output',
        default='build/editor.slf',
        help="Where to store the created slf file"
    )
    args = parser.parse_args()

    if not os.path.exists(os.path.dirname(args.output)):
        os.makedirs(os.path.dirname(args.output))

    target_fs = BufferedSlfFS()
    replacement_fs = OSFS('editor')
    with open(args.original, 'rb') as source_file:
        source_fs = SlfFS(source_file)

        target_fs.library_name = source_fs.library_name
        target_fs.library_path = source_fs.library_path
        target_fs.version = source_fs.version
        target_fs.sort = source_fs.sort

        for directory in source_fs.walkdirs():
            if directory == '/':
                continue
            target_fs.makedir(directory)
        for file in source_fs.walkfiles():
            base_name, _ = os.path.splitext(file)
            with source_fs.open(file, 'rb') as source, target_fs.open(file, 'wb') as target:
                ja2_images = load_8bit_sti(source)
                replacement_path = base_name + '.gif'
                replacement_file_exists = replacement_fs.isfile(replacement_path)
                replacement_dir = file
                replacement_dir_exists = replacement_fs.isdir(replacement_dir)
                if len(ja2_images) == 1 and replacement_file_exists:
                    print("Replacing {0} with {1}".format(file, replacement_path))
                    replacement_img = Image.open(replacement_fs.open(replacement_path, 'rb'))
                    ja2_images._palette = replacement_img.palette
                    ja2_images.images[0]._image = replacement_img
                elif len(ja2_images) > 1 and replacement_dir_exists:
                    for i in range(len(ja2_images)):
                        replacement_path = replacement_dir + '/{}.gif'.format(i)

                        print("Replacing {0} with {1}".format(file, replacement_path))
                        replacement_img = Image.open(replacement_fs.open(replacement_path, 'rb'))
                        ja2_images._palette = replacement_img.palette
                        ja2_images.images[i]._image = replacement_img
                else:
                    print("Replacing {0} with nothingness".format(file))
                    for sub_image in ja2_images.images:
                        width, height = sub_image.image.size
                        sub_image._image = Image.new('P', (width, height), color=54)

                save_8bit_sti(ja2_images, target)

    with open(args.output, 'wb') as target_file:
        target_fs.save(target_file)
Ejemplo n.º 3
0
def eggifySingle(srcFS, src, destFS, dest, config=None):
    """ Eggify single source to single destination.

    Args:
        src (basestring)
        dest (basestring)

    Raises:
        MissingDestinationException
    """

    if dest is None:
        raise MissingDestinationException()

    if config is None:
        config = {}

    if src.startswith("/") or src[1] == ":":
        head, tail = os.path.split(src)

        srcFS = OSFS(head)
        src = tail

    if srcFS.isfile(unicode(src)):
        assertFS(destFS.getsyspath(unicode(dest)))

        workingDir = srcFS.getsyspath(unicode("/"))
        devnull = open(os.devnull, 'w')

        cmd = ["python", src, "bdist_egg"]

        if "purge" in config.keys() and config["purge"]:
            cmd.append("--exclude-source-files")            

        subprocess.check_call(cmd, cwd=workingDir, stdout=devnull, stderr=devnull)
    
        if srcFS.isdir(unicode("dist")):
            distFS = srcFS.opendir(unicode("dist"))

            for name in reversed(sorted(distFS.listdir("/"))):
                if name.endswith(".egg"):
                    destEggFS = destFS.opendir(unicode(dest))

                    # remove existing eggs
                    removeOldEggs(destEggFS, name)

                    eggSrcPath = distFS.getsyspath(unicode(name))
                    eggDestPath = destEggFS.getsyspath(unicode(name))

                    copy_file(distFS, unicode(name), destEggFS, unicode(name))

                    print "copied {} to {}".format(eggSrcPath, eggDestPath)

                    break
Ejemplo n.º 4
0
def handle_preview(**kwargs):
    """ Handle preview actions.

    Args:
        **kwargs (dict): Arguments
    """
    default_args = {
        'input': None,
        'output': None,
        'prefix': None,
        'layer': None,
        'num_threads': None,
        'multithreading': 1
    }

    default_args.update(kwargs)

    args = dict_to_namedtuple(default_args)

    # open output filesystem
    out_fs = assure_fs(args.output)

    # join layer
    layer = None

    if args.layer:
        layer = ' '.join(args.layer)

    # split input path
    dirname, basename = os.path.split(unicode(args.input))

    # open input filesystem
    try:
        in_fs = OSFS(dirname)

        if in_fs.isfile(basename):
            filename, extension = os.path.splitext(basename)

            # prepend prefix to filename
            if args.prefix:
                filename = args.prefix + filename

            out_name = unicode(filename + '.jpg')

            preview_file(in_fs.getsyspath(basename), out_fs.getsyspath(out_name), layer)
        elif in_fs.isdir(basename):
            preview_dir(in_fs.opendir(basename), out_fs, args.num_threads, bool(args.multithreading), prefix=args.prefix, layer=layer)
    except CreateFailed:
        console.error('Input {} does not exist.'.format(args.input))

        return
Ejemplo n.º 5
0
def application(environ, start_response):
    fs = OSFS(join(dirname(__file__), "static"))
    path = environ["PATH_INFO"]      
    if path in ("", "/"):        
        path = "index.html"
    if path == "/getbbcode":
        bbcode = unicode(environ["wsgi.input"].read(), 'utf-8')
        html = render_bbcode(bbcode, clean=True, paragraphs=True, render_unknown_tags=True)
        start_response("200 OK", [("Content-type", "text/html; charset=utf-8")])
        return [html.encode("utf-8")]
    mime_type, _encoding = mimetypes.guess_type(basename(path))
    if not fs.isfile(path):
        start_response("404 NOT FOUND", [])
        return ["Nobody here but us chickens: %s" % path]
    start_response("200 OK", [("Content-type", mime_type)])    
    return [fs.getcontents(path)]
Ejemplo n.º 6
0
def application(environ, start_response):
    fs = OSFS(join(dirname(__file__), "static"))
    path = environ["PATH_INFO"]
    if path in ("", "/"):
        path = "index.html"
    if path == "/getbbcode":
        bbcode = unicode(environ["wsgi.input"].read(), 'utf-8')
        html = render_bbcode(bbcode,
                             clean=True,
                             paragraphs=True,
                             render_unknown_tags=True)
        start_response("200 OK",
                       [("Content-type", "text/html; charset=utf-8")])
        return [html.encode("utf-8")]
    mime_type, _encoding = mimetypes.guess_type(basename(path))
    if not fs.isfile(path):
        start_response("404 NOT FOUND", [])
        return ["Nobody here but us chickens: %s" % path]
    start_response("200 OK", [("Content-type", mime_type)])
    return [fs.getcontents(path)]
Ejemplo n.º 7
0
def main():
    parser = argparse.ArgumentParser(description='Create free editor.slf')
    parser.add_argument('--original', help="Original editor.slf")
    parser.add_argument('-o',
                        '--output',
                        default='build/editor.slf',
                        help="Where to store the created slf file")
    parser.add_argument('--name', help="Library name")
    args = parser.parse_args()

    if not os.path.exists(os.path.dirname(args.output)):
        os.makedirs(os.path.dirname(args.output))

    if args.original is None:
        target_fs = create_free_editorslf(args.name)
        with open(args.output, 'wb') as target_file:
            target_fs.save(target_file)
        generate_md5_file(args.output)
        return

    # create editor.slf by replacing images in the original editor.slf
    target_fs = BufferedSlfFS()
    replacement_fs = OSFS('editor')
    with open(args.original, 'rb') as source_file:
        source_fs = SlfFS(source_file)

        target_fs.library_name = args.name or source_fs.library_name
        target_fs.library_path = source_fs.library_path
        target_fs.version = source_fs.version
        target_fs.sort = source_fs.sort

        for directory in source_fs.walkdirs():
            if directory == '/':
                continue
            target_fs.makedir(directory)
        for file in source_fs.walkfiles():
            base_name, _ = os.path.splitext(file)
            with source_fs.open(file, 'rb') as source, target_fs.open(
                    file, 'wb') as target:
                ja2_images = load_8bit_sti(source)
                replacement_path = base_name + '.gif'
                replacement_file_exists = replacement_fs.isfile(
                    replacement_path)
                replacement_dir = file
                replacement_dir_exists = replacement_fs.isdir(replacement_dir)
                if len(ja2_images) == 1 and replacement_file_exists:
                    print("Replacing {0} with {1}".format(
                        file, replacement_path))
                    replacement_img = Image.open(
                        replacement_fs.open(replacement_path, 'rb'))
                    ja2_images._palette = replacement_img.palette
                    ja2_images.images[0]._image = replacement_img
                elif len(ja2_images) > 1 and replacement_dir_exists:
                    for i in range(len(ja2_images)):
                        replacement_path = replacement_dir + '/{}.gif'.format(
                            i)

                        print("Replacing {0} with {1}".format(
                            file, replacement_path))
                        replacement_img = Image.open(
                            replacement_fs.open(replacement_path, 'rb'))
                        ja2_images._palette = replacement_img.palette
                        ja2_images.images[i]._image = replacement_img
                else:
                    print("Replacing {0} with nothingness".format(file))
                    for sub_image in ja2_images.images:
                        width, height = sub_image.image.size
                        sub_image._image = Image.new('P', (width, height),
                                                     color=54)

                save_8bit_sti(ja2_images, target)

    with open(args.output, 'wb') as target_file:
        target_fs.save(target_file)
    generate_md5_file(args.output)
Ejemplo n.º 8
0
class TestDatasetManager(unittest.TestCase):

    trash_dir = "./tests/resources/trash_data"

    def setUp(self):
        self.os = OSFS(".")

    def tearDown(self):
        for data in self.os.listdir(self.trash_dir):
            if data != ".keep":
                self.os.remove("{}/{}".format(self.trash_dir, data))
        self.os.close()

    def test_should_read_yaml_from_dir(self):

        expected = {
            "one_test": {
                "source": "http://source/teste",
                "description": "my little dataset"
            }
        }

        data = DatasetManager("./tests/resources/one_data")
        self.assertDictEqual(data.get_datasets(), expected)

    def test_should_read_multiple_yaml_from_dir(self):

        expected = {
            "one_test": {
                "source":
                "https://raw.githubusercontent.com/pcsanwald/kaggle-titanic/master/train.csv",
                "description": "my little dataset"
            },
            "two_test": {
                "source":
                "https://raw.githubusercontent.com/pcsanwald/kaggle-titanic/master/train.csv",
                "description": "my little dataset 2"
            }
        }

        data = DatasetManager("./tests/resources/multiple_data", fs=self.os)
        result = list(data.get_datasets().keys())
        result.sort()
        expected = ["one_test", "two_test"]
        self.assertListEqual(expected, result)

    def test_should_get_dataset(self):

        data = DatasetManager("./tests/resources/local_data")
        dataset = {
            "local_test": {
                "source": "./tests/resources/local_data/train.csv",
                "description": "my little dataset local"
            }
        }
        self.assertDictEqual(data.get_dataset("local_test"),
                             dataset.get("local_test"))

    def test_should_get_dataset_unknown(self):

        data = DatasetManager("./tests/resources/local_data")
        with self.assertRaises(IOError):
            data.get_dataset("unknown_test")

    def test_should_create_dataset(self):
        data = DatasetManager(self.trash_dir, fs=self.os)
        identifier = "data_name"
        dataset = {
            "identifier": identifier,
            "description": "description",
            "source": "/tmp/test.csv",
        }

        data.create_dataset(**dataset)

        loaded_datasets = data.get_datasets()
        dataset_config = loaded_datasets.get(identifier)

        self.assertTrue(
            self.os.isfile("{}/{}.yaml".format(self.trash_dir, identifier)))
        self.assertEqual(len(self.os.listdir(self.trash_dir)), 2)

        self.assertEqual(list(loaded_datasets.keys())[0], identifier)
        self.assertEqual(dataset_config.get("description"),
                         dataset["description"])
        self.assertEqual(dataset_config.get("source"), dataset["source"])

    def test_should_create_dataset_with_custom_data(self):
        data = DatasetManager(self.trash_dir, fs=self.os)
        identifier = "data_name_custom"
        dataset = {
            "identifier": identifier,
            "description": "description",
            "source": "/tmp/test.csv"
        }
        data.create_dataset(**dataset)
        self.assertTrue(
            self.os.isfile("{}/{}.yaml".format(self.trash_dir, identifier)))

        self.assertEqual(len(os.listdir(self.trash_dir)), 2)
        loaded_dataset = data.get_datasets()
        self.assertEqual(list(loaded_dataset.keys()), [identifier])

        datasource_configs = loaded_dataset.get(identifier)
        self.assertEqual(datasource_configs["description"],
                         dataset["description"])
        self.assertEqual(datasource_configs["source"], dataset["source"])

    def test_should_remove_dataset(self):
        data = DatasetManager(self.trash_dir, fs=self.os)
        identifier = "data_name"
        dataset = {
            "identifier": identifier,
            "description": "description",
            "source": "/tmp/test.csv"
        }
        data.create_dataset(**dataset)
        self.assertTrue(
            os.path.isfile("{}/{}.yaml".format(self.trash_dir, identifier)))
        self.assertEqual(len(os.listdir(self.trash_dir)), 2)
        data.remove_dataset(identifier)
        self.assertFalse(
            os.path.isfile("{}/{}.yaml".format(self.trash_dir, identifier)))
        self.assertEqual(len(os.listdir(self.trash_dir)), 1)

    def test_should_remove_unknown_dataset(self):

        data = DatasetManager("./tests/resources/local_data", fs=self.os)
        with self.assertRaises(IOError):
            data.remove_dataset("unknown_dataset")
Ejemplo n.º 9
0
def handle_rechannel(**kwargs):
    """ Handle rechannel actions.

    Args:
        **kwargs (dict): Arguments
    """
    default_args = {
        'input': None,
        'output': None,
        'prefix': None,
        'map': None,
        'num_threads': None,
        'multithreading': 1
    }

    default_args.update(kwargs)

    args = dict_to_namedtuple(default_args)

    # open output filesystem
    out_fs = assure_fs(args.output)

    # split map path
    dirname, basename = os.path.split(unicode(args.map))
    try:
        map_fs = OSFS(dirname)

        if map_fs.isfile(basename):
            with map_fs.open(basename) as file_handle:
                try:
                    layer_map = json.loads(file_handle.read())
                except Exception as error:
                    console.error(error)

                    return
        else:
            console.error('Map {} does not exist.'.format(args.map))

            return
    except CreateFailed:
        console.error('Map parent directory {} does not exist.'.format(args.map))

        return

    # split input path
    dirname, basename = os.path.split(unicode(args.input))

    # open input filesystem
    try:
        in_fs = OSFS(dirname)

        if in_fs.isfile(basename):
            # prepend prefix to basename
            if args.prefix:
                basename = args.prefix + basename

            rechannel_file(in_fs.getsyspath(basename), out_fs.getsyspath(basename), layer_map)
        elif in_fs.isdir(basename):
            rechannel_dir(in_fs.opendir(basename), out_fs, layer_map, args.num_threads, bool(args.multithreading), prefix=args.prefix)
    except CreateFailed:
        console.error('Input {} does not exist.'.format(args.input))

        return
Ejemplo n.º 10
0
class VirtualHost(object):
    """ Represents a single host. This class implements the commands
        that are host-specific, like pwd, ls, etc.
    """
    def __init__(self, params, network, fs_dir):
        self.hostname = params['hostname']
        self.ip_address = params['ip_address']
        self.network = network
        self.env = params['env']

        valid_ips = map(str, network[1:-1])
        if self.ip_address is None:
            logger.error(
                'IP address for {} is not specified in the config file (or is "null")'
                .format(self.hostname))
            if not self._set_ip_from_previous_run(fs_dir, valid_ips):
                self.ip_address = get_random_item(valid_ips)
                logger.info('Assigned random IP {} to host {}'.format(
                    self.ip_address, self.hostname))
        else:
            if not self.ip_address in valid_ips:
                logger.error(
                    'IP Address {} for {} is not valid for the specified network'
                    .format(params['ip_address'], self.hostname))
                if not self._set_ip_from_previous_run(fs_dir, valid_ips):
                    self.ip_address = get_random_item(valid_ips)
                    logger.info('Assigned random IP {} to host {}'.format(
                        self.ip_address, self.hostname))

        self.valid_logins = params['valid_logins']
        self.logged_in = False
        self.current_user = None
        if params.get('default', False):
            self.default = True
        else:
            self.default = False
        self.filesystem = OSFS(os.path.join(
            fs_dir, '{}_{}'.format(self.hostname, self.ip_address)),
                               create=True)
        self.working_path = '/'

    def authenticate(self, username, password):
        if self.valid_logins.get(username, None) == password:
            return True
        return False

    def login(self, username):
        logger.debug('User "{}" has logged into "{}" host'.format(
            username, self.hostname))
        self.logged_in = True
        self.current_user = username

    def logout(self):
        self.logged_in = False
        self.current_user = None

    @property
    def welcome(self):
        if self.filesystem.isfile('/etc/motd'):
            with self.filesystem.open('/etc/motd') as motd_file:
                return motd_file.read()
        else:
            return 'Welcome to {} server.'.format(self.hostname)

    @property
    def prompt(self):
        prompt = '{}@{}:{}$ '.format(self.current_user, self.hostname,
                                     self.working_path)
        return prompt

    def run_echo(self, params, shell):
        if not params:
            shell.writeline('')
        elif params[0].startswith('$') and len(params) == 1:
            var_name = params[0][1:]
            value = self.env.get(var_name, '')
            shell.writeline(value)
        elif '*' in params:
            params.remove('*')
            params.extend(self.filesystem.listdir())
            shell.writeline(' '.join(params))
        else:
            shell.writeline(' '.join(params))

    def run_pwd(self, params, shell):
        if params:
            shell.writeline('pwd: too many arguments')
        else:
            shell.writeline('{}'.format(self.working_path))

    def run_wget(self, params, shell):
        parser = Parser(add_help=False)
        parser.add_argument('-h', '--help', action='store_true', default=False)
        parser.add_argument('-V',
                            '--version',
                            action='store_true',
                            default=False)
        parser.add_argument('-O', '--output-document')
        args, unparsed = parser.parse_known_args(params)

        if unparsed:
            url = unparsed[0]
        elif not args.help and not args.version:
            noparam_file_path = os.path.join(os.path.dirname(hornet.__file__),
                                             'data', 'commands', 'wget',
                                             'no_param')
            self.send_data_from_file(noparam_file_path, shell)
            return

        if args.help:
            help_file_path = os.path.join(os.path.dirname(hornet.__file__),
                                          'data', 'commands', 'wget', 'help')
            self.send_data_from_file(help_file_path, shell)
            return

        if args.version:
            version_file_path = os.path.join(os.path.dirname(hornet.__file__),
                                             'data', 'commands', 'wget',
                                             'version')
            self.send_data_from_file(version_file_path, shell)
            return

        wget_command = WgetCommand(url, self.working_path, self.filesystem,
                                   args, shell)
        wget_command.process()

    def run_ping(self, params, shell):

        options = [x for x in params if x.startswith('-')]

        if '-h' in options or len(params) == 0:
            help_file_path = os.path.join(os.path.dirname(hornet.__file__),
                                          'data', 'commands', 'ping', 'help')
            self.send_data_from_file(help_file_path, shell)
            return

        filtered_params = [p for p in params if not p.startswith('-')]

        ping_host = filtered_params[-1]
        logger.debug('Going to ping {}'.format(ping_host))
        ping_command = PingCommand(ping_host, shell)
        ping_command.process()

    def run_ifconfig(self, params, shell):
        if len(params) >= 2:
            shell.writeline('SIOCSIFFLAGS: Operation not permitted')
            return
        if params:
            parameter = params[0]
            if parameter == '--version':
                version_file_path = os.path.join(
                    os.path.dirname(hornet.__file__), 'data', 'commands',
                    'ifconfig', 'version')
                self.send_data_from_file(version_file_path, shell)
                logger.debug(
                    'Sending version string for ifconfig from {} file'.format(
                        version_file_path))
                return
            elif parameter == '--help' or parameter == '-h':
                help_file_path = os.path.join(os.path.dirname(hornet.__file__),
                                              'data', 'commands', 'ifconfig',
                                              'help')
                self.send_data_from_file(help_file_path, shell)
                logger.debug(
                    'Sending version string for ifconfig from {} file'.format(
                        help_file_path))
                return
        output_template_path = os.path.join(os.path.dirname(hornet.__file__),
                                            'data', 'commands', 'ifconfig',
                                            'output_template')
        ifconfig_command = IfconfigCommand(params, output_template_path,
                                           self.ip_address, self.network)
        output = ifconfig_command.process()
        shell.writeline(output)

    def run_ls(self, params, shell):
        paths = []
        other_params = []
        for p in params:
            if p.startswith('-'):
                other_params.append(p)
            else:
                paths.append(p)

        if not paths:  # List contents of working dir by default
            paths.append(self.working_path)

        parser = Parser(add_help=False)
        parser.add_argument('-a', '--all', action='store_true', default=False)
        parser.add_argument('-A',
                            '--almost-all',
                            action='store_true',
                            default=False)
        parser.add_argument('-d',
                            '--directory',
                            action='store_true',
                            default=False)
        parser.add_argument('-l', action='store_true', default=False)

        # We ignore these (for now), but still parse them ;-)
        parser.add_argument('-h',
                            '--human-readable',
                            action='store_true',
                            default=False)
        parser.add_argument('-b',
                            '--escape',
                            action='store_true',
                            default=False)
        parser.add_argument('--block-size')
        parser.add_argument('-B',
                            '--ignore-backups',
                            action='store_true',
                            default=False)
        parser.add_argument('-c', action='store_true', default=False)
        parser.add_argument('-C', action='store_true', default=False)
        parser.add_argument('--color')
        parser.add_argument('-D',
                            '--dired',
                            action='store_true',
                            default=False)
        parser.add_argument('-f', action='store_true', default=False)
        parser.add_argument('-F',
                            '--classify',
                            action='store_true',
                            default=False)
        parser.add_argument('--file-type', action='store_true', default=False)
        parser.add_argument('--format')
        parser.add_argument('--full-time', action='store_true', default=False)
        parser.add_argument('-g', action='store_true', default=False)
        parser.add_argument('--group-directories-first',
                            action='store_true',
                            default=False)
        parser.add_argument('-G',
                            '--no-group',
                            action='store_true',
                            default=False)
        parser.add_argument('-H',
                            '--dereference-command-line',
                            action='store_true',
                            default=False)
        parser.add_argument('--dereference-command-line-symlink-to-dir',
                            action='store_true',
                            default=False)
        parser.add_argument('--hide')
        parser.add_argument('--indicator-style')
        parser.add_argument('-i',
                            '--inode',
                            action='store_true',
                            default=False)
        parser.add_argument('-I', '--ignore')
        parser.add_argument('-k',
                            '--kibibytes',
                            action='store_true',
                            default=False)
        parser.add_argument('-L',
                            '--deference',
                            action='store_true',
                            default=False)
        parser.add_argument('-m', action='store_true', default=False)
        parser.add_argument('-n',
                            '--numeric-uid-gid',
                            action='store_true',
                            default=False)
        parser.add_argument('-N',
                            '--literal',
                            action='store_true',
                            default=False)
        parser.add_argument('-o', action='store_true', default=False)
        parser.add_argument('-p', action='store_true', default=False)
        parser.add_argument('-q',
                            '--hide-control-chars',
                            action='store_true',
                            default=False)
        parser.add_argument('--show-control-chars',
                            action='store_true',
                            default=False)
        parser.add_argument('-Q',
                            '--quote-name',
                            action='store_true',
                            default=False)
        parser.add_argument('--quoting-style')
        parser.add_argument('-r',
                            '--reverse',
                            action='store_true',
                            default=False)
        parser.add_argument('-R',
                            '--recursive',
                            action='store_true',
                            default=False)
        parser.add_argument('-s', '--size', action='store_true', default=False)
        parser.add_argument('-S', action='store_true', default=False)
        parser.add_argument('--sort')
        parser.add_argument('--time')
        parser.add_argument('--time-style')
        parser.add_argument('-t', action='store_true', default=False)
        parser.add_argument('-T', '--tabsize', default=False)
        parser.add_argument('-u', action='store_true', default=False)
        parser.add_argument('-U', action='store_true', default=False)
        parser.add_argument('-v', action='store_true', default=False)
        parser.add_argument('-w', '--width')
        parser.add_argument('-x', action='store_true', default=False)
        parser.add_argument('-X', action='store_true', default=False)
        parser.add_argument('-1',
                            dest='one_per_line',
                            action='store_true',
                            default=False)
        parser.add_argument('--help', action='store_true', default=False)
        parser.add_argument('--version', action='store_true', default=False)

        try:
            args = parser.parse_args(other_params)
        except ParseError:
            shell.writeline('ls: invalid options: \"{}\"'.format(
                ' '.join(params)))
            shell.writeline('Try \'ls --help\' for more information.')
            return

        if args.help:
            help_file_path = os.path.join(os.path.dirname(hornet.__file__),
                                          'data', 'commands', 'ls', 'help')
            logger.debug(
                'Sending help string from file {}'.format(help_file_path))
            self.send_data_from_file(help_file_path, shell)
            return

        if args.version:
            version_file_path = os.path.join(os.path.dirname(hornet.__file__),
                                             'data', 'commands', 'ls',
                                             'version')
            logger.debug('Sending version string from file {}'.format(
                version_file_path))
            self.send_data_from_file(version_file_path, shell)
            return

        ls_cmd = LsCommand(args, paths, self.filesystem, self.working_path)
        output = ls_cmd.process()
        shell.writeline(output)

    def run_cd(self, params, shell):
        if len(params) == 0:
            params = ['/']
        cd_path = os.path.join(self.working_path, params[0])
        new_path_exists = False
        try:
            new_path_exists = self.filesystem.exists(cd_path)
        except BackReferenceError as e:
            logger.warn('Access to the external file system was attempted.')
            cd_path = '/'
            new_path_exists = True
        finally:
            if not new_path_exists:
                shell.writeline('cd: {}: No such file or directory'.format(
                    params[0]))
            else:
                self.working_path = os.path.normpath(cd_path)
                logger.debug(
                    'Working directory for host {} changed to {}'.format(
                        self.hostname, self.working_path))

    def run_uname(self, params, shell):

        if not params:
            shell.writeline('Linux')
            return

        buff = ''
        info = [
            'Linux', self.hostname, '3.13.0-37-generic',
            '#64-Ubuntu SMP Mon Sep 22 21:30:01 UTC 2014', 'i686', 'i686',
            'i686', 'GNU/Linux'
        ]
        parser = Parser(add_help=False)
        parser.add_argument('-a', '--all', default=False, action='store_true')
        parser.add_argument('-s',
                            '--kernel-name',
                            default=False,
                            action='store_true')
        parser.add_argument('-n',
                            '--nodename',
                            default=False,
                            action='store_true')
        parser.add_argument('-r',
                            '--kernel-release',
                            default=False,
                            action='store_true')
        parser.add_argument('-v',
                            '--kernel-version',
                            default=False,
                            action='store_true')
        parser.add_argument('-m',
                            '--kernel-machine',
                            default=False,
                            action='store_true')
        parser.add_argument('-p',
                            '--processor',
                            default=False,
                            action='store_true')
        parser.add_argument('-i',
                            '--hardware-platform',
                            default=False,
                            action='store_true')
        parser.add_argument('-o',
                            '--operating-system',
                            default=False,
                            action='store_true')
        parser.add_argument('--help', default=False, action='store_true')
        parser.add_argument('--version', default=False, action='store_true')

        try:
            args = parser.parse_args(params)
        except ParseError:
            shell.writeline('uname: invalid options -- \'{}\''.format(
                ' '.join(params)))
            shell.writeline('Try \'uname --help\' for more information.')
            return

        if args.all:
            buff = ' '.join(info)
            shell.writeline(buff)
            return
        if args.help:
            help_file_path = os.path.join(os.path.dirname(hornet.__file__),
                                          'data', 'commands', 'uname', 'help')
            self.send_data_from_file(help_file_path, shell)
            return
        if args.version:
            version_file_path = os.path.join(os.path.dirname(hornet.__file__),
                                             'data', 'commands', 'uname',
                                             'version')
            self.send_data_from_file(version_file_path, shell)
            return
        if args.kernel_name:
            buff = buff + info[0] + ' '
        if args.nodename:
            buff = buff + self.hostname + ' '
        if args.kernel_release:
            buff = buff + info[2] + ' '
        if args.kernel_version:
            buff = buff + info[3] + ' '
        if args.kernel_machine:
            buff = buff + info[4] + ' '
        if args.processor:
            buff = buff + info[4] + ' '
        if args.hardware_platform:
            buff = buff + info[4] + ' '
        if args.operating_system:
            buff += 'GNU/Linux'

        shell.writeline(buff)

    def _set_ip_from_previous_run(self, fs_dir, valid_ips):  # pragma: no cover
        for dir_name in os.listdir(fs_dir):
            if dir_name.startswith(self.hostname + '_'):
                possible_ip = dir_name.split('_')[1]
                if possible_ip in valid_ips:
                    self.ip_address = possible_ip
                    logger.info('Assigned IP {} to host {}'.format(
                        self.ip_address, self.hostname))
                    return True
        return False

    @staticmethod
    def send_data_from_file(path, shell):
        with open(path, 'r') as infile:
            for line in infile:
                line = line.strip()
                shell.writeline(line)