bumblebee-status/bumblebee/config.py
Tobi-wan Kenobi 9a350ddc2a [tests/config] Add tests for helptexts
Ensure that each theme is listed in the helptext and that there is a
helptext entry for every module.
2016-12-17 08:42:23 +01:00

84 lines
3.2 KiB
Python

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