A collection of classes and commands for automated command line scripting using Python.
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# Imports
import logging
from importlib import import_module
from .constants import LOGGER_NAME
from .library.commands import ItemizedCommand
log = logging.getLogger(LOGGER_NAME)
# Exports
__all__ = (
"Factory",
)
# Classes
class Factory(object):
"""A command factory."""
def __init__(self, overlay):
"""Initialize the factory.
:param overlay: The name of the overlay to use for generating commands.
:type overlay: str
"""
self.is_loaded = False
self.overlay = None
self._overlay = overlay
def __repr__(self):
return "<%s %s>" % (self.__class__.__name__, self._overlay)
def get_command(self, name, *args, **kwargs):
"""Get a command.
:param name: The name of the command.
:type name: str
args and kwargs are passed to the initialize the command.
:rtype: scripttease.library.commands.Command | scripttease.library.commands.ItemizedCommand
"""
if not self.overlay.command_exists(name):
log.warning("Command does not exist in %s overlay: %s" % (self._overlay, name))
return None
callback = self.overlay.MAPPINGS[name]
try:
items = kwargs.pop("items", None)
if items is not None:
return ItemizedCommand(callback, items, *args, name=name, **kwargs)
command = callback(*args, **kwargs)
command.name = name
return command
except (KeyError, NameError, TypeError, ValueError) as e:
log.critical("Failed to load %s command: %s" % (name, e))
return None
def load(self):
"""Load the factory.
:rtype: bool
"""
try:
self.overlay = import_module("scripttease.library.overlays.%s" % self._overlay)
self.is_loaded = True
except ImportError as e:
log.error("The %s overlay could not be imported: %s" % (self._overlay, str(e)))
pass
return self.is_loaded