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328 lines
10 KiB
328 lines
10 KiB
#!/usr/bin/python3
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'''
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Checks available Torrents on PleasureDome
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and updates the local versions if more recent
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versions are detected
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Basically what it does is:
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* Get all torrents in a directory torrents
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* Get all torrents from PleasureDome github
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* Get all torrents currently active in Transmission
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* Intersect the first two lists to get updatable torrents
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* And for each updatable torrent:
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- remove the old torrent from Transmission (if needed),
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- rename the local directory,
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- add the new torrent
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Supported Torrents:
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* MAME
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* HBMAME
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Work in progress…
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* TODO: implement some error handling
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Requirements:
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* Transmission for Bitorrent
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* A proper PDMameUpdate.json file (see PDMameUpdate.template.json)
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* Python3 with the libraries below
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- bs4
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- requests
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- transmission-clutch
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- tabulate
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* Linux (untested on other OS, but it might work)
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!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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!!! Provided with no warranty whatsoever. !!!
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!!! Make sure you understand what the script !!!
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!!! does and adapt it to your context !!!
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!!! Use with caution. !!!
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!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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'''
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import argparse
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from bs4 import BeautifulSoup as bs
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import json
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import logging
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import os
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import re
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from requests import get
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import time
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import pathlib
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from clutch import Client
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from tabulate import tabulate
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from collections import defaultdict
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from pprint import pformat
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from urllib.parse import urlparse
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def open_config_file():
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"""Reads configuration from PDMameUpdate.json file"""
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locations = (
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os.environ.get("PDMAMEUPDATE_CONF"),
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"/etc",
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os.path.expanduser("~"),
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os.curdir
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)
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for loc in locations:
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if loc is not None:
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logging.debug("Searching for config file in '%s'", loc)
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config_path = loc + '/PDMameUpdate.json'
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if pathlib.Path(config_path).is_file():
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config_file_loc = config_path
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break
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if 'config_file_loc' not in locals():
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logging.error("Config file not found")
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raise FileNotFoundError("Config file not found")
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logging.info('Opening config file: '+config_file_loc)
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config_file = None
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with open(config_file_loc, 'r') as config_file:
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config = json.load(config_file)
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parameters = [
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"mame-directory",
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"transmission-password",
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"transmission-port",
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"transmission-user"
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]
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for key in parameters:
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if key not in config:
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logging.error('Missing key in config file: %s', key)
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raise ValueError('Invalid config file.')
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return config
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def get_magnet_link(link):
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page = get(link)
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html = bs(page.text, 'html.parser')
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for link in html.find_all('a'):
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href = link.get('href')
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if urlparse(href).scheme == 'magnet':
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return link.string
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def fetch_local_torrents():
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"""Fetches local torrents versions"""
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logging.info('Fetching current MAME versions')
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for mdirectory in config['mame-directory']:
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logging.debug('checking: %s', mdirectory)
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directories = os.listdir(mdirectory)
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for directory in directories:
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for regexp in regexps:
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match = regexp.search(directory)
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if match:
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version = match.group(0)
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name = regexp.sub('#', directory)
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torrents[name]['local-version'] = version
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torrents[name]['local-name'] = directory
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torrents[name]['local-path'] = mdirectory
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logging.debug('Found the local torrent versions: %s', pformat(torrents))
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def fetch_remote_torrents():
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"""Fetches PleasureDome torrents versions"""
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logging.info('Opening PleasureDome github feed')
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pdurls = [
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'https://pleasuredome.github.io/pleasuredome/mame/index.html',
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'https://pleasuredome.github.io/pleasuredome/hbmame/index.html'
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]
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for url in pdurls:
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page = get(url)
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html = bs(page.text, 'html.parser')
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for link in html.find_all('a'):
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for regexp in regexps:
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match = regexp.search(link.string)
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if match:
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if urlparse(link.get('href')).netloc == 'mgnet.me':
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matched_version = match.group(0)
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matched_torrent = torrents[regexp.sub('#', link.string)]
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remote_version = matched_torrent.get('remote-version', '')
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if matched_version > remote_version:
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matched_torrent['remote-version'] = matched_version
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matched_torrent['remote-link'] = link.get('href')
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matched_torrent['remote-name'] = link.string
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else:
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logging.info("Skipping '{}' version '{}'".format(
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match.group(0),
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matched_version
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))
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logging.debug('Found the remote torrent versions: %s', pformat(torrents))
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def filter_updatable_torrents():
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"""Checks if newer versions are available and get magnet link"""
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for torrent, data in list(torrents.items()):
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keys_to_check = {'local-version', 'remote-version'}
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if (
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keys_to_check.issubset(data.keys())
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and
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data['local-version'] < data['remote-version']
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):
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data['remote-link'] = get_magnet_link(data['remote-link'])
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else:
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del torrents[torrent]
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logging.debug(
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'The following torrents can be updated: %s',
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[t for t in torrents.keys()]
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)
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def prompt_for_update():
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"""Ask for user confirmation before updating"""
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output_header = ["Torrent", "From", "To", "Transmission ID"]
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output = []
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if len(torrents) > 0:
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for torrent, data in torrents.items():
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output.append([
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torrent,
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data['local-version'],
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data['remote-version'],
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data.get('transmission-id', 'N/A')
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])
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print(tabulate(
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output,
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headers=output_header,
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tablefmt="simple",
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disable_numparse=True
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))
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print('Should I update the torrents listed above? (y/N)')
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answer = input()
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if answer.lower() != 'y':
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logging.info('Quitting: user cancelled update')
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print('Quitting…')
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exit(0)
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else:
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logging.info('Quitting: no update candidate')
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print('No update found…')
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exit(0)
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logging.info('User chose to update torrents')
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def connect_to_transmission():
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"""Connects to Transmission and return a Client object"""
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logging.info('Connecting to Transmission Remote Control')
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return Client(
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username=config['transmission-user'],
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password=config['transmission-password'],
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port=config['transmission-port']
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)
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def fetch_transmission_torrents():
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"""Gets the torrents id from Transmission"""
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logging.info('Listing Transmission torrents')
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local_torrents = client.torrent.accessor(
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fields=['id', 'name']
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).arguments.torrents
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for local_torrent in local_torrents:
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torrent = local_torrent.dict(exclude_none=True)
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for regexp in regexps:
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match = regexp.search(torrent['name'])
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if match:
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name = regexp.sub('#', torrent['name'])
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torrents[name]['transmission-id'] = torrent['id']
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logging.debug('Found the Transmission torrent ids: %s', pformat(torrents))
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def update_torrents():
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"""
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Updates torrents:
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* remove it from Transmission,
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* rename the local directory,
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* and add the new torrent
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"""
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logging.info('Updating torrents')
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for torrent in torrents.values():
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logging.info('Updating torrent : %s', torrent['remote-name'])
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old_name = os.path.join(
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torrent['local-path'],
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torrent['local-name']
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)
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new_name = os.path.join(
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torrent['local-path'],
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torrent['remote-name']
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)
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if 'transmission-id' in torrent:
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logging.debug(
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'Removing from transmission : %s',
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torrent['transmission-id']
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)
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client.torrent.remove(torrent['transmission-id'])
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logging.debug('Renaming %s to %s', old_name, new_name)
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os.rename(old_name, new_name)
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logging.debug('Adding to transmission : %s', torrent['remote-link'])
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arguments = {
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"filename" : torrent['remote-link'],
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"magnet_link": True,
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"download_dir" : torrent['local-path'],
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"paused" : True,
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}
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responce = client.torrent.add(arguments)
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logging.debug('clutch responce : %s', responce)
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if __name__ == '__main__':
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logging.basicConfig(
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level=logging.WARNING,
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format=' %(asctime)s - %(levelname)s - %(message)s'
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)
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parser = argparse.ArgumentParser(
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description='Update PleasureDome MAME Torrents'
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)
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parser.add_argument(
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'-l', '--log',
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action='store_true',
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help='Display more log messages'
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)
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parser.add_argument(
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'-d', '--debug',
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action='store_true',
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help='Display debugging messages'
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)
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parser.add_argument(
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'-c', '--countdown',
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action='store_true',
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help='Start with a 5 second countdown'
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)
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args = parser.parse_args()
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if args.log:
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logging.getLogger().setLevel(logging.INFO)
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if args.debug:
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logging.getLogger().setLevel(logging.DEBUG)
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if args.countdown:
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print('PDMameUpdate is about to start')
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# Useful if you run this script when your machine boots
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for i in range(5, 0, -1):
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print('{}\r'.format(i), end=''),
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time.sleep(1)
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regexps = [
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re.compile(r'(?<=MAME )[\d.]+'),
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re.compile(r'(?<=HBMAME )[\d.]+'),
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]
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config = open_config_file()
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torrents = defaultdict(dict)
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client = connect_to_transmission()
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fetch_local_torrents()
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fetch_remote_torrents()
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fetch_transmission_torrents()
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filter_updatable_torrents()
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prompt_for_update()
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update_torrents()
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