83 lines
3.2 KiB
Python
83 lines
3.2 KiB
Python
"""Configuration handling
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This module provides configuration information (loaded modules,
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module parameters, etc.) to all other components
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"""
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import argparse
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import textwrap
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import importlib
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import bumblebee.store
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MODULE_HELP = "Specify a space-separated list of modules to load. The order of the list determines their order in the i3bar (from left to right). Use <module>:<alias> to provide an alias in case you want to load the same module multiple times, but specify different parameters."
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THEME_HELP = "Specify the theme to use for drawing modules"
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PARAMETER_HELP = "Provide configuration parameters in the form of <module>.<key>=<value>"
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LIST_HELP = "Display a list of either available themes or available modules along with their parameters."
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class print_usage(argparse.Action):
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def __init__(self, option_strings, dest, nargs=None, **kwargs):
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argparse.Action.__init__(self, option_strings, dest, nargs, **kwargs)
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self._indent = " "*2
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def __call__(self, parser, namespace, value, option_string=None):
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if value == "modules":
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self.print_modules()
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elif value == "themes":
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self.print_themes()
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else:
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parser.print_help()
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parser.exit()
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def print_themes(self):
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print(textwrap.fill(", ".join(bumblebee.theme.themes()),
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80, initial_indent = self._indent, subsequent_indent = self._indent
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))
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def print_modules(self):
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for m in bumblebee.engine.all_modules():
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mod = importlib.import_module("bumblebee.modules.{}".format(m["name"]))
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print(textwrap.fill("{}:".format(m["name"]), 80,
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initial_indent=self._indent*2, subsequent_indent=self._indent*2))
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for line in mod.__doc__.split("\n"):
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print(textwrap.fill(line, 80,
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initial_indent=self._indent*3, subsequent_indent=self._indent*6))
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def create_parser():
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"""Create the argument parser"""
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parser = argparse.ArgumentParser(description="display system data in the i3bar")
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parser.add_argument("-m", "--modules", nargs="+", default=[],
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help=MODULE_HELP)
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parser.add_argument("-t", "--theme", default="default", help=THEME_HELP)
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parser.add_argument("-p", "--parameters", nargs="+", default=[],
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help=PARAMETER_HELP)
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parser.add_argument("-l", "--list", choices=["modules", "themes"], action=print_usage,
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help=LIST_HELP)
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return parser
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class Config(bumblebee.store.Store):
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"""Top-level configuration class
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Parses commandline arguments and provides non-module
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specific configuration information.
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"""
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def __init__(self, args=None):
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super(Config, self).__init__()
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parser = create_parser()
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self._args = parser.parse_args(args if args else [])
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for param in self._args.parameters:
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key, value = param.split("=")
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self.set(key, value)
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def modules(self):
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"""Return a list of all activated modules"""
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return [{
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"module": x.split(":")[0],
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"name": x if not ":" in x else x.split(":")[1],
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} for x in self._args.modules]
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def theme(self):
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"""Return the name of the selected theme"""
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return self._args.theme
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# vim: tabstop=8 expandtab shiftwidth=4 softtabstop=4
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