Source code for timelinelib.config.arguments
# Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Rickard Lindberg, Roger Lindberg
#
# This file is part of Timeline.
#
# Timeline is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Timeline is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Timeline. If not, see <http://www.gnu.org/licenses/>.
"""
The ApplicationArguments class parses the command line arguments and
options when the application is started.
If the application is started with:
python3 timeline.py -h
a text will be displayed that describes valid arguments and valid
options.
:doc:`Tests are found here <unit_config_arguments>`.
"""
from optparse import OptionParser
import os.path
import wx
from timelinelib.meta.version import get_full_version
FILENAME_DOC = """\
Arguments:
filename: If given, should be the path to a timeline file or one of the following special values:
* :tutorial:
Creates a readonly Gregorian tutorial timeline
* :numtutorial:
Creates a readonly Numeric tutorial timeline
* path to an .ics file
Creates a readonly timeline from ics data
* path to a directory
Creates a readonly timeline with the directory content as events
"""
[docs]class PosOptionParser(OptionParser):
"""Extend OptionParser with the possibility to print a formatted epilog in the help output."""
[docs] def __init__(self, *args, **kwargs):
"""Init parent class"""
OptionParser.__init__(self, *args, **kwargs)
[docs]class ApplicationArguments:
"""
Parse and store the application arguments and options given on the command line when
Timeline is started.
"""
[docs] def __init__(self, arguments):
"""Create the command line parser and parse the arguments and options."""
self._options = None
self._arguments = None
self._option_parser = self._create_option_parser()
self._create_config_file_option()
self._create_debug_option()
self._parse_from(arguments)
@property
def config_file_path(self):
"""
Return the path to the timeline configuration file.
If the path is not given on the commandline the following path is returned:
wx.StandardPaths.Get().GetUserConfigDir() + ".thetimelineproj.cfg"
"""
if self._options.config_file_path:
return self._options.config_file_path
else:
return os.path.join(
wx.StandardPaths.Get().GetUserConfigDir(),
".thetimelineproj.cfg")
@property
def first_file(self):
"""
Return the filename argument given on the command line
or None if no filename was given.
"""
try:
return self._arguments[0]
except IndexError:
return None
@property
def debug_flag(self):
"""Return True/False depending on the ``--debug`` flag is used or not."""
return self._options.debug
[docs] def has_files(self):
"""Return True/False depending on the existance of the filename argument"""
return len(self._arguments) > 0
def _get_files(self):
return self._arguments
def _create_option_parser(self):
return PosOptionParser(
usage="%prog [options] [filename]",
version=self._create_version_string())
def _create_version_string(self):
return "%prog " + get_full_version()
def _create_config_file_option(self):
self._option_parser.add_option(
"-c", "--config-file", dest="config_file_path", default=None,
help="Path to config file")
def _create_debug_option(self):
self._option_parser.add_option(
"--debug",
default=False, action="store_true",
help="Run Timeline with extra debug output")
def _parse_from(self, arguments):
(self._options, self._arguments) = self._option_parser.parse_args(arguments)