The ironicclient.common.utils Module

class ironicclient.common.utils.HelpFormatter(prog, indent_increment=2, max_help_position=24, width=None)

Bases: argparse.HelpFormatter

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ironicclient.common.utils.args_array_to_dict(kwargs, key_to_convert)

Convert the value in a dictionary entry to a dictionary.

From the kwargs dictionary, converts the value of the key_to_convert entry from a list of key-value pairs to a dictionary.

Parameters:

• kwargs – a dictionary
• key_to_convert – the key (in kwargs), whose value is expected to be a list of key=value strings. This value will be converted to a dictionary.

Returns:

kwargs, the (modified) dictionary

ironicclient.common.utils.args_array_to_patch(op, attributes)

ironicclient.common.utils.bool_argument_value(arg_name, bool_str, strict=True, default=False)

Returns the Boolean represented by bool_str.

Returns the Boolean value for the argument named arg_name. The value is represented by the string bool_str. If the string is an invalid Boolean string: if strict is True, a CommandError exception is raised; otherwise the default value is returned.

Parameters:

• arg_name – The name of the argument
• bool_str – The string representing a Boolean value
• strict – Used if the string is invalid. If True, raises an exception. If False, returns the default value.
• default – The default value to return if the string is invalid and not strict

Returns:

the Boolean value represented by bool_str or the default value if bool_str is invalid and strict is False

Raises CommandError:  

if bool_str is an invalid Boolean string

ironicclient.common.utils.check_empty_arg(arg, arg_descriptor)

ironicclient.common.utils.check_for_invalid_fields(fields, valid_fields)

Check for invalid fields.

Parameters:

• fields – A list of fields specified by the user.
• valid_fields – A list of valid fields.

Raises CommandError:  

If invalid fields were specified by the user.

ironicclient.common.utils.common_filters(marker=None, limit=None, sort_key=None, sort_dir=None, fields=None)

Generate common filters for any list request.

Parameters:

• marker – entity ID from which to start returning entities.
• limit – maximum number of entities to return.
• sort_key – field to use for sorting.
• sort_dir – direction of sorting: ‘asc’ or ‘desc’.
• fields – a list with a specified set of fields of the resource to be returned.

Returns:

list of string filters.

ironicclient.common.utils.common_params_for_list(args, fields, field_labels)

Generate ‘params’ dict that is common for every ‘list’ command.

Parameters:

• args – arguments from command line.
• fields – possible fields for sorting.
• field_labels – possible field labels for sorting.

Returns:

a dict with params to pass to the client method.

ironicclient.common.utils.define_command(subparsers, command, callback, cmd_mapper)

Define a command in the subparsers collection.

Parameters:

• subparsers – subparsers collection where the command will go
• command – command name
• callback – function that will be used to process the command

ironicclient.common.utils.define_commands_from_module(subparsers, command_module, cmd_mapper)

Add do_ methods in a module and add as commands into a subparsers.

ironicclient.common.utils.get_from_stdin(info_desc)

Read information from stdin.

Parameters:info_desc – A string description of the desired information Raises:InvalidAttribute if there was a problem reading from stdin Returns:the string that was read from stdin

ironicclient.common.utils.handle_json_or_file_arg(json_arg)

Attempts to read JSON argument from file or string.

Parameters:json_arg – May be a file name containing the JSON, or a JSON string. Returns:A list or dictionary parsed from JSON. Raises:InvalidAttribute if the argument cannot be parsed.

ironicclient.common.utils.import_versioned_module(version, submodule=None)

ironicclient.common.utils.key_value_pairs_to_dict(key_value_pairs)

Convert a list of key-value pairs to a dictionary.

Parameters:key_value_pairs – a list of strings, each string is in the form <key>=<value> Returns:a dictionary, possibly empty

ironicclient.common.utils.make_configdrive(path)

Make the config drive file.

Parameters:path – The directory containing the config drive files. Returns:A gzipped and base64 encoded configdrive string.

ironicclient.common.utils.split_and_deserialize(string)

Split and try to JSON deserialize a string.

Gets a string with the KEY=VALUE format, split it (using ‘=’ as the separator) and try to JSON deserialize the VALUE.

Returns:A tuple of (key, value).

ironicclient.common.utils.tempdir(*args, **kwds)