45 lines
2 KiB
Python
45 lines
2 KiB
Python
import glob, imp, inspect, os, sys
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class ModuleManager(object):
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def __init__(self, bot, directory="modules"):
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self.bot = bot
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self.directory = directory
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self.modules = {}
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def list_modules(self):
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return sorted(glob.glob(os.path.join(self.directory, "*.py")))
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def load_module(self, filename):
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name = os.path.basename(filename).rsplit(".py", 1)[0]
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with open(filename) as module_file:
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while True:
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line = module_file.readline().strip()
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line_split = line.split(" ")
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if line and line.startswith("#--"):
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# this is a hashflag
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if line == "#--ignore":
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# nope, ignore this module.
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return None
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elif line_split[0] == "#--require-config" and len(
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line_split) > 1:
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if not line_split[1].lower() in self.bot.config:
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# nope, required config option not present.
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return None
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else:
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break
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module = imp.load_source("bitbot_%s" % name, filename)
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assert hasattr(module, "Module"
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), "module '%s' doesn't have a Module class."
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assert inspect.isclass(module.Module
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), "module '%s' has a Module attribute but it is not a class."
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module_object = module.Module(self.bot)
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if not hasattr(module_object, "_name"):
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module_object._name = name.title()
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return module_object
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def load_modules(self):
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for filename in self.list_modules():
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module = self.load_module(filename)
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if module:
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assert not module._name in self.modules, (
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"module name '%s' attempted to be used twice.")
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self.modules[module._name] = module
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else:
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sys.stderr.write("module '%s' not loaded.\n" % filename)
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