/neatx/lib/cli.py
Python | 85 lines | 43 code | 20 blank | 22 comment | 1 complexity | a765d914ac32ac94e9661745087d30ce MD5 | raw file
1# 2# 3 4# Copyright (C) 2009 Google Inc. 5# 6# This program is free software; you can redistribute it and/or modify 7# it under the terms of the GNU General Public License as published by 8# the Free Software Foundation; either version 2 of the License, or 9# (at your option) any later version. 10# 11# This program is distributed in the hope that it will be useful, but 12# WITHOUT ANY WARRANTY; without even the implied warranty of 13# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14# General Public License for more details. 15# 16# You should have received a copy of the GNU General Public License 17# along with this program; if not, write to the Free Software 18# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 19# 02110-1301, USA. 20 21 22"""Module for command line interface functions""" 23 24 25import logging 26import optparse 27import sys 28 29from neatx import config 30from neatx import constants 31from neatx import utils 32 33 34class GenericProgram(object): 35 def __init__(self, logsetup): 36 self.logsetup = logsetup 37 self.cfg = None 38 self.args = None 39 self.options = None 40 41 def BuildOptions(self): 42 debug_opt = optparse.make_option("-d", "--debug", default=False, 43 action="store_true", 44 help="Enable debug logging") 45 logtostderr_opt = optparse.make_option("--logtostderr", default=False, 46 action="store_true", 47 help="Log to stderr") 48 return [debug_opt, logtostderr_opt] 49 50 def Main(self): 51 self.logsetup.Init() 52 53 logging.debug("Started with args %r", sys.argv) 54 55 try: 56 (self.options, self.args) = self.ParseArgs() 57 58 self.cfg = config.Config(constants.CONFIG_FILE) 59 60 self._ConfigLogging() 61 62 self.Run() 63 64 except (SystemExit, KeyboardInterrupt): 65 raise 66 67 except Exception: 68 logging.exception("Caught exception") 69 sys.exit(constants.EXIT_FAILURE) 70 71 def ParseArgs(self): 72 parser = optparse.OptionParser(option_list=self.BuildOptions(), 73 formatter=optparse.TitledHelpFormatter()) 74 return parser.parse_args() 75 76 def _ConfigLogging(self): 77 """Configures the logging module. 78 79 """ 80 debug = self.options.debug or self.cfg.debug 81 logopts = utils.LoggingSetupOptions(debug, self.options.logtostderr) 82 self.logsetup.SetOptions(logopts) 83 84 def Run(self): 85 raise NotImplementedError()