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#!/usr/bin/env python |
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# -*- coding: utf8 -*- |
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# |
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# versions.py : checks releases and versions of programs through RSS |
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# or Atom feeds and tells you |
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# |
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# (C) Copyright 2016 Olivier Delhomme |
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# e-mail : [email protected] |
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# |
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# This program is free software; you can redistribute it and/or modify |
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# it under the terms of the GNU General Public License as published by |
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# the Free Software Foundation; either version 2, or (at your option) |
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# any later version. |
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# |
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# This program is distributed in the hope that it will be useful, |
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# but WITHOUT ANY WARRANTY; without even the implied warranty of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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# GNU General Public License for more details. |
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# |
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# You should have received a copy of the GNU General Public License |
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# along with this program; if not, write to the Free Software Foundation, |
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# Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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# |
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import codecs |
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import feedparser |
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import yaml |
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import argparse |
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import os |
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import errno |
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import time |
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import doctest |
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__author__ = "Olivier Delhomme <[email protected]>" |
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__date__ = "12.10.2017" |
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__version__ = "0.0.5" |
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""" |
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This program checks projects versions throught RSS and Atom feeds and |
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should only print those with new release version. |
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It implements checking for projects in github.com and freshcode.club. |
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Projects must be added to a YAML file (named by default |
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~/.config/versions/versions.yaml). One can use --file=FILENAME option |
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to specify an alternative YAML file. |
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github projects must be listed under a "github.com:" section and |
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freshcode ones must be listed under a "freshcode.club:" section. |
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Versions uses and produces text files. Those files are cache files |
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written into ~/.local/versions directory. "*.cache" are cache files |
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containing the project list and their associated version (the latest). |
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"*.feed" are information feed cache files containing on only one line |
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the latest parsed post of the feed. |
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""" |
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class Conf: |
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""" |
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Class to store configuration of the program |
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""" |
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config_dir = '' |
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local_dir = '' |
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config_filename = '' |
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description = {} |
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options = None |
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def __init__(self): |
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""" |
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Inits the class |
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""" |
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self.config_dir = os.path.expanduser("~/.config/versions") |
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self.local_dir = os.path.expanduser("~/.local/versions") |
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self.config_filename = '' # At this stage we do not know if a filename has been set on the command line |
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self.description = {} |
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self.options = None |
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# Make sure that the directories exists |
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make_directories(self.config_dir) |
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make_directories(self.local_dir) |
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self._get_command_line_arguments() |
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# End of init() function |
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def load_yaml_from_config_file(self, filename): |
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""" |
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Loads definitions from the YAML config file filename |
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""" |
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config_file = codecs.open(filename, 'r', encoding='utf-8') |
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self.description = yaml.safe_load(config_file) |
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config_file.close() |
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# End of load_yaml_from_config_file() function |
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def _get_command_line_arguments(self): |
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""" |
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Defines and gets all the arguments for the command line using |
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argparse module. This function is called in the __init__ function |
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of this class. |
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""" |
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str_version = 'versions.py - %s' % __version__ |
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parser = argparse.ArgumentParser(description='This program checks releases and versions of programs through RSS or Atom feeds', version=str_version) |
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parser.add_argument('-f', '--file', action='store', dest='filename', help='Configuration file with projects to check', default='') |
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parser.add_argument('-l', '--list-cache', action='store_true', dest='list_cache', help='Lists all projects and their version in cache', default=False) |
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parser.add_argument('-d', '--debug', action='store_true', dest='debug', help='Starts in debug mode and prints things that may help', default=False) |
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self.options = parser.parse_args() |
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if self.options.filename != '': |
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self.config_filename = self.options.filename |
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else: |
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self.config_filename = os.path.join(self.config_dir, 'versions.yaml') |
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# End of get_command_line_arguments() function |
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# End of Conf class |
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class FileCache: |
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""" |
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This class should help in managing cache files |
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""" |
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cache_filename = '' |
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cache_dict = {} # Dictionnary of projects and their associated version |
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def __init__(self, local_dir, filename): |
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""" |
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Inits the class. 'local_dir' must be a directory where we want to |
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store the cache file named 'filename' |
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""" |
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self.cache_filename = os.path.join(local_dir, filename) |
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self.cache_dict = {} |
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self._read_cache_file() |
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# End of __init__() function |
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def _return_project_and_version_from_line(self, line): |
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""" |
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Splits the line into a project and a version if possible (the line |
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must contain a whitespace. |
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""" |
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line = line.strip() |
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if line.count(' ') > 0: |
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(project, version) = line.split(' ', 1) |
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elif line != '': |
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project = line |
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version = '' |
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return (project, version) |
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# End of _return_project_and_version_from_line() function |
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def _read_cache_file(self): |
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""" |
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Reads the cache file and puts it into a dictionnary of project with |
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their associated version |
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""" |
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if os.path.isfile(self.cache_filename): |
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cache_file = codecs.open(self.cache_filename, 'r', encoding='utf-8') |
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for line in cache_file: |
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(project, version) = self._return_project_and_version_from_line(line) |
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self.cache_dict[project] = version |
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cache_file.close() |
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# End of _read_cache_file() function |
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def write_cache_file(self): |
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""" |
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Owerwrites dictionnary cache to the cache file |
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""" |
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cache_file = open_and_truncate_file(self.cache_filename) |
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for (project, version) in self.cache_dict.iteritems(): |
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cache_file.write('%s %s\n' % (project, version)) |
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cache_file.close() |
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# End of write_cache_file() function |
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def update_cache_dict(self, project, version, debug): |
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""" |
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Updates cache dictionnary if needed |
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""" |
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try: |
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version_cache = self.cache_dict[project] |
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print_debug(debug, u'\t\tIn cache: {}'.format(version_cache)) |
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if version != version_cache: |
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print('%s %s' % (project, version)) |
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self.cache_dict[project] = version |
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except KeyError: |
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print('%s %s' % (project, version)) |
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self.cache_dict[project] = version |
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# End of update_cache_dict() function |
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def print_cache_dict(self, sitename): |
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""" |
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Pretty prints the cache dictionary as it is recorded in the files. |
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""" |
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print('%s:' % sitename) |
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# Gets project and version tuple sorted by project lowered while sorting |
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for project, version in sorted(self.cache_dict.iteritems(), key=lambda proj: proj[0].lower()): |
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print('\t%s %s' % (project, version)) |
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print('') |
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# End of print_cache_dict() function |
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# End of FileCache class |
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class FeedCache: |
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cache_filename = '' |
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year = 2016 |
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month = 05 |
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day = 1 |
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hour = 0 |
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minute = 0 |
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date_minutes = 0 |
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def __init__(self, local_dir, filename): |
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""" |
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Inits the class. 'local_dir' must be a directory where we want to |
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store the cache file named 'filename' |
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""" |
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self.cache_filename = os.path.join(local_dir, filename) |
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self.read_cache_feed() |
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# End of __init__() function |
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def read_cache_feed(self): |
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""" |
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Reads the cache file which should only contain one date on the |
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first line |
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""" |
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if os.path.isfile(self.cache_filename): |
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cache_file = codecs.open(self.cache_filename, 'r', encoding='utf-8') |
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(self.year, self.month, self.day, self.hour, self.minute) = cache_file.readline().strip().split(' ', 4) |
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self.date_minutes = self._calculate_minutes(int(self.year), int(self.month), int(self.day), int(self.hour), int(self.minute)) |
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cache_file.close() |
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# End of read_cache_feed() function |
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def write_cache_feed(self): |
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""" |
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Overwrites the cache file with values stored in this class |
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""" |
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cache_file = open_and_truncate_file(self.cache_filename) |
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cache_file.write('%s %s %s %s %s' % (self.year, self.month, self.day, self.hour, self.minute)) |
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cache_file.close() |
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# End of write_cache_feed() function |
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def update_cache_feed(self, date): |
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""" |
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Updates the values stored in the class with the date which should |
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be a time.struct_time |
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""" |
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self.year = date.tm_year |
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self.month = date.tm_mon |
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self.day = date.tm_mday |
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self.hour = date.tm_hour |
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self.minute = date.tm_min |
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self.date_minutes = self._calculate_minutes_from_date(date) |
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# End of update_cache_feed() function |
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def _calculate_minutes(self, year, mon, day, hour, mins): |
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""" |
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Calculate a number of minutes with all parameters and returns |
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this. |
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>>> fc = FeedCache('localdir','filename') |
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>>> fc._calculate_minutes(2016, 5, 1, 0, 0) |
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1059827040 |
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""" |
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minutes = (year * 365 * 24 * 60) + \ |
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(mon * 30 * 24 * 60) + \ |
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(day * 24 * 60) + \ |
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(hour * 60) + \ |
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(mins) |
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return minutes |
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# End of _calculate_minutes() function |
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def _calculate_minutes_from_date(self, date): |
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""" |
|
326
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Transforms a date in a number of minutes to ease comparisons |
|
327
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and returns this number of minutes |
|
328
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""" |
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329
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|
330
|
1 |
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return self._calculate_minutes(date.tm_year, date.tm_mon, date.tm_mday, date.tm_hour, date.tm_min) |
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331
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332
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# End of _calculate_minutes() function |
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333
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334
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335
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1 |
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def is_newer(self, date): |
|
336
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""" |
|
337
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Tells wether "date" is newer than the one in the cache (returns True |
|
338
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or not (returns False) |
|
339
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""" |
|
340
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|
341
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1 |
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minutes = self._calculate_minutes_from_date(date) |
|
342
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|
343
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1 |
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if minutes > self.date_minutes: |
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344
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1 |
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return True |
|
345
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|
346
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else: |
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347
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return False |
|
348
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|
349
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# End of is_newer() function |
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350
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# End of FeedCache class |
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351
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352
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353
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|
######## Below are some utility functions used by classes above ######## |
|
354
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|
355
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356
|
1 |
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def make_directories(path): |
|
357
|
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|
""" |
|
358
|
|
|
Makes all directories in path if possible. It is not an error if |
|
359
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|
path already exists. |
|
360
|
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|
""" |
|
361
|
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|
362
|
1 |
|
try: |
|
363
|
1 |
|
os.makedirs(path) |
|
364
|
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|
|
|
365
|
|
|
except OSError as exc: |
|
366
|
|
|
|
|
367
|
|
|
if exc.errno != errno.EEXIST or os.path.isdir(path) is not True: |
|
368
|
|
|
raise |
|
369
|
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|
|
|
370
|
|
|
# End of make_directories() function |
|
371
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|
372
|
|
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|
373
|
1 |
|
def open_and_truncate_file(filename): |
|
374
|
|
|
""" |
|
375
|
|
|
Opens filename for writing truncating it to a zero length file |
|
376
|
|
|
and returns a python file object. |
|
377
|
|
|
""" |
|
378
|
|
|
|
|
379
|
1 |
|
cache_file = codecs.open(filename, 'w', encoding='utf-8') |
|
380
|
1 |
|
cache_file.truncate(0) |
|
381
|
1 |
|
cache_file.flush() |
|
382
|
|
|
|
|
383
|
1 |
|
return cache_file |
|
384
|
|
|
|
|
385
|
|
|
# End of open_and_truncate_file() function |
|
386
|
|
|
####################### End of utility functions ####################### |
|
387
|
|
|
|
|
388
|
|
|
|
|
389
|
1 |
|
def get_latest_release_by_title(program, debug, feed_url): |
|
390
|
|
|
""" |
|
391
|
|
|
Gets the latest release of a program on github. program must be a |
|
392
|
|
|
string of the form user/repository. |
|
393
|
|
|
""" |
|
394
|
|
|
|
|
395
|
1 |
|
version = '' |
|
396
|
1 |
|
url = feed_url.format(program) |
|
397
|
1 |
|
feed = feedparser.parse(url) |
|
398
|
|
|
|
|
399
|
1 |
|
if len(feed.entries) > 0: |
|
400
|
1 |
|
version = feed.entries[0].title |
|
401
|
|
|
|
|
402
|
1 |
|
print_debug(debug, u'\tProject {}: {}'.format(program, version)) |
|
403
|
|
|
|
|
404
|
1 |
|
return version |
|
405
|
|
|
|
|
406
|
|
|
# End of get_latest_github_release() function |
|
407
|
|
|
|
|
408
|
|
|
|
|
409
|
1 |
|
def check_versions_feeds_by_projects(github_project_list, local_dir, debug, feed_url): |
|
410
|
|
|
""" |
|
411
|
|
|
Checks project's versions on github if any are defined in the yaml |
|
412
|
|
|
file under the github.com tag. |
|
413
|
|
|
""" |
|
414
|
|
|
|
|
415
|
1 |
|
github_cache = FileCache(local_dir, 'github.cache') |
|
416
|
|
|
|
|
417
|
1 |
|
for project in github_project_list: |
|
418
|
1 |
|
version = get_latest_release_by_title(project, debug, feed_url) |
|
419
|
1 |
|
if version != '': |
|
420
|
1 |
|
github_cache.update_cache_dict(project, version, debug) |
|
421
|
|
|
|
|
422
|
1 |
|
github_cache.write_cache_file() |
|
423
|
|
|
|
|
424
|
|
|
# End of check_versions_for_github_projects() function |
|
425
|
|
|
|
|
426
|
|
|
|
|
427
|
1 |
|
def make_list_of_newer_feeds(feed, feed_info, debug): |
|
428
|
|
|
""" |
|
429
|
|
|
Compares feed entries and keep those that are newer than the latest |
|
430
|
|
|
check we've done and inserting the newer ones in reverse order in |
|
431
|
|
|
a list to be returned |
|
432
|
|
|
""" |
|
433
|
|
|
|
|
434
|
1 |
|
feed_list = [] |
|
435
|
|
|
|
|
436
|
|
|
# inserting into a list in reverse order to keep the most recent |
|
437
|
|
|
# version in case of multiple release of the same project in the |
|
438
|
|
|
# feeds |
|
439
|
1 |
|
for a_feed in feed.entries: |
|
440
|
1 |
|
(project, version) = a_feed.title.strip().split(' ', 1) |
|
441
|
1 |
|
print_debug(debug, u'\tFeed entry ({0}): project: {1:16} version: {2}'.format(time.strftime('%x %X', a_feed.published_parsed), project, version)) |
|
442
|
1 |
|
if feed_info.is_newer(a_feed.published_parsed): |
|
443
|
1 |
|
feed_list.insert(0, a_feed) |
|
444
|
|
|
|
|
445
|
1 |
|
return feed_list |
|
446
|
|
|
|
|
447
|
|
|
# End of make_list_of_newer_feeds() function |
|
448
|
|
|
|
|
449
|
|
|
|
|
450
|
1 |
|
def lower_list_of_strings(project_list): |
|
451
|
|
|
""" |
|
452
|
|
|
Lowers every string in the list to ease sorting and comparisons |
|
453
|
|
|
""" |
|
454
|
|
|
|
|
455
|
1 |
|
project_list_low = [project.lower() for project in project_list] |
|
456
|
|
|
|
|
457
|
1 |
|
return project_list_low |
|
458
|
|
|
|
|
459
|
|
|
# End of lower_list_of_strings() function |
|
460
|
|
|
|
|
461
|
|
|
|
|
462
|
1 |
|
def check_and_update_feed(feed_list, project_list, cache, debug): |
|
463
|
|
|
""" |
|
464
|
|
|
Checks every feed entry in the list against project list cache and |
|
465
|
|
|
then updates the dictionnary then writes the cache file to the disk. |
|
466
|
|
|
- feed_list is a list of feed (from feedparser module) |
|
467
|
|
|
- project_list is the list of project as read from the yaml |
|
468
|
|
|
configuration file |
|
469
|
|
|
- cache is an initialized instance of FileCache |
|
470
|
|
|
""" |
|
471
|
|
|
|
|
472
|
|
|
# Lowers the list before searching in it |
|
473
|
1 |
|
project_list_low = lower_list_of_strings(project_list) |
|
474
|
|
|
|
|
475
|
|
|
# Checking every feed entry that are newer than the last check |
|
476
|
|
|
# and updates the dictionnary accordingly |
|
477
|
1 |
|
for entry in feed_list: |
|
478
|
1 |
|
(project, version) = entry.title.strip().split(' ', 1) |
|
479
|
1 |
|
print_debug(debug, u'\tChecking {0:16}: {1}'.format(project, version)) |
|
480
|
|
|
|
|
481
|
1 |
|
if project.lower() in project_list_low: |
|
482
|
1 |
|
cache.update_cache_dict(project, version, debug) |
|
483
|
|
|
|
|
484
|
1 |
|
cache.write_cache_file() |
|
485
|
|
|
|
|
486
|
|
|
# End of check_and_update_feed() |
|
487
|
|
|
|
|
488
|
|
|
|
|
489
|
1 |
|
def check_versions_for_freshcode(freshcode_project_list, local_dir, debug): |
|
490
|
|
|
""" |
|
491
|
|
|
Checks projects with freshcode's web site's RSS |
|
492
|
|
|
""" |
|
493
|
|
|
|
|
494
|
1 |
|
freshcode_cache = FileCache(local_dir, 'freshcode.cache') |
|
495
|
|
|
|
|
496
|
1 |
|
url = 'http://freshcode.club/projects.rss' |
|
497
|
1 |
|
feed = feedparser.parse(url) |
|
498
|
|
|
|
|
499
|
1 |
|
feed_info = FeedCache(local_dir, 'freshcode.feed') |
|
500
|
1 |
|
feed_info.read_cache_feed() |
|
501
|
|
|
|
|
502
|
1 |
|
length = len(feed.entries) |
|
503
|
|
|
|
|
504
|
1 |
|
if length > 0: |
|
505
|
1 |
|
print_debug(debug, u'\tFound {} entries'.format(length)) |
|
506
|
|
|
|
|
507
|
1 |
|
feed_list = make_list_of_newer_feeds(feed, feed_info, debug) |
|
508
|
1 |
|
print_debug(debug, u'\tFound {} new entries (relative to {})'.format(len(feed_list), feed_info.date_minutes)) |
|
509
|
|
|
|
|
510
|
1 |
|
check_and_update_feed(feed_list, freshcode_project_list, freshcode_cache, debug) |
|
511
|
|
|
|
|
512
|
|
|
# Updating feed_info with the latest parsed feed entry date |
|
513
|
1 |
|
feed_info.update_cache_feed(feed.entries[0].published_parsed) |
|
514
|
|
|
|
|
515
|
|
|
else: |
|
516
|
|
|
print_debug(debug, u'No entries found in feed') |
|
517
|
|
|
|
|
518
|
1 |
|
feed_info.write_cache_feed() |
|
519
|
|
|
|
|
520
|
|
|
# End of check_versions_for_freshcode() function |
|
521
|
|
|
|
|
522
|
|
|
|
|
523
|
1 |
|
def print_versions_from_cache(local_dir, debug): |
|
524
|
|
|
""" |
|
525
|
|
|
Prints all projects and their associated data from the cache |
|
526
|
|
|
""" |
|
527
|
|
|
|
|
528
|
|
|
github_cache = FileCache(local_dir, 'github.cache') |
|
529
|
|
|
freshcode_cache = FileCache(local_dir, 'freshcode.cache') |
|
530
|
|
|
|
|
531
|
|
|
github_cache.print_cache_dict('Github') |
|
532
|
|
|
freshcode_cache.print_cache_dict('Freshcode') |
|
533
|
|
|
|
|
534
|
|
|
# End of print_versions_from_cache() |
|
535
|
|
|
|
|
536
|
|
|
|
|
537
|
1 |
|
def check_versions(versions_conf, debug): |
|
538
|
|
|
""" |
|
539
|
|
|
Checks versions by parsing online feeds |
|
540
|
|
|
""" |
|
541
|
|
|
|
|
542
|
|
|
# Checks projects from sourceforge |
|
543
|
1 |
|
print_debug(debug, u'Checking sourceforge prolects') |
|
544
|
1 |
|
check_versions_feeds_by_projects(versions_conf.description['sourceforge.net'], versions_conf.local_dir, debug, 'https://sourceforge.net/projects/{}/rss?path=/') |
|
545
|
|
|
|
|
546
|
|
|
# Checks projects from github |
|
547
|
1 |
|
print_debug(debug, u'Checking github prolects') |
|
548
|
1 |
|
check_versions_feeds_by_projects(versions_conf.description['github.com'], versions_conf.local_dir, debug, 'https://github.com/{}/releases.atom') |
|
549
|
|
|
|
|
550
|
|
|
# Checks projects from freshcode.club |
|
551
|
1 |
|
print_debug(debug, u'Checking freshcode updates') |
|
552
|
1 |
|
check_versions_for_freshcode(versions_conf.description['freshcode.club'], versions_conf.local_dir, debug) |
|
553
|
|
|
|
|
554
|
|
|
|
|
555
|
1 |
|
def print_cache_or_check_versions(versions_conf): |
|
556
|
|
|
""" |
|
557
|
|
|
Decide to pretty print projects and their associated version that |
|
558
|
|
|
are already in the cache or to check versions of that projects upon |
|
559
|
|
|
selections made at the command line |
|
560
|
|
|
""" |
|
561
|
|
|
|
|
562
|
1 |
|
debug = versions_conf.options.debug |
|
563
|
1 |
|
print_debug(debug, u'Loading yaml config file') |
|
564
|
1 |
|
versions_conf.load_yaml_from_config_file(versions_conf.config_filename) |
|
565
|
|
|
|
|
566
|
1 |
|
if versions_conf.options.list_cache is True: |
|
567
|
|
|
# Pretty prints all caches. |
|
568
|
|
|
print_versions_from_cache(versions_conf.local_dir, debug) |
|
569
|
|
|
|
|
570
|
|
|
else: |
|
571
|
1 |
|
check_versions(versions_conf, debug) |
|
572
|
|
|
|
|
573
|
|
|
# End of print_list_or_check_versions() function. |
|
574
|
|
|
|
|
575
|
|
|
|
|
576
|
1 |
|
def main(): |
|
577
|
|
|
""" |
|
578
|
|
|
This is the where the program begins |
|
579
|
|
|
""" |
|
580
|
|
|
|
|
581
|
1 |
|
versions_conf = Conf() # Configuration options |
|
582
|
|
|
|
|
583
|
1 |
|
if versions_conf.options.debug: |
|
584
|
1 |
|
doctest.testmod(verbose=True) |
|
585
|
|
|
|
|
586
|
1 |
|
if os.path.isfile(versions_conf.config_filename): |
|
587
|
1 |
|
print_cache_or_check_versions(versions_conf) |
|
588
|
|
|
|
|
589
|
|
|
else: |
|
590
|
|
|
print('Error: file %s does not exist' % versions_conf.config_filename) |
|
591
|
|
|
|
|
592
|
|
|
# End of main() function |
|
593
|
|
|
|
|
594
|
|
|
|
|
595
|
1 |
|
def print_debug(debug, message): |
|
596
|
|
|
""" |
|
597
|
|
|
Prints 'message' if debug mode is True |
|
598
|
|
|
""" |
|
599
|
|
|
|
|
600
|
1 |
|
if debug: |
|
601
|
1 |
|
print(message) |
|
602
|
|
|
|
|
603
|
|
|
# End of print_debug() function |
|
604
|
|
|
|
|
605
|
|
|
|
|
606
|
1 |
|
if __name__ == "__main__": |
|
607
|
|
|
main() |
|
608
|
|
|
|
dupgit /
versions
