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from plugin.core.constants import PLUGIN_VERSION_BASE, PLUGIN_VERSION_BRANCH |
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from plugin.core.environment import Environment |
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from plugin.managers.message import MessageManager |
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from plugin.models import Message |
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from plugin.modules.core.base import Module |
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import json |
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import logging |
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import os |
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VERSION_PATH = os.path.abspath(os.path.join(Environment.path.code, '..', '.version')) |
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log = logging.getLogger(__name__) |
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class Upgrade(Module): |
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__key__ = 'upgrade' |
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def __init__(self): |
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pass |
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def start(self): |
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log.debug('Checking for version change...') |
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current = self.current() |
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installed = self.installed() |
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# New install |
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if current is None: |
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self.update(installed) |
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return |
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# Validate |
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changed, valid = self.validate(current, installed) |
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if not changed or not valid: |
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return |
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# Update current version |
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self.update(installed) |
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@classmethod |
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def validate(cls, current, installed): |
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# No change |
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if current == installed: |
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log.debug('No change') |
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return False, True |
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# Downgrade |
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if tuple(installed['version']) < tuple(current['version']): |
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cls.log( |
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logging.WARN, Message.Code.DowngradeUnclean, |
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message='Unclean downgrade detected, see http://bit.ly/TFPx100201 for more details', |
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description="An unclean plugin downgrade can cause a number of errors, see http://bit.ly/TFPx100201 for more details" |
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) |
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return True, False |
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# Upgrade |
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if tuple(installed['version']) > tuple(current['version']): |
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cls.log( |
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logging.INFO, Message.Code.UpgradePerformed, |
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message='Plugin has been updated to v%s' % cls.format(installed) |
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) |
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return True, True |
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# Invalid |
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return False, False |
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@classmethod |
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def log(cls, level, code, message, description=None): |
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# Write to log file |
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log.log(level, message) |
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# Store message in database |
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MessageManager.get.from_message( |
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level, message, |
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code=code, |
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description=(description or message) |
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) |
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@classmethod |
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def current(cls): |
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if not os.path.exists(VERSION_PATH): |
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return None |
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try: |
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with open(VERSION_PATH, 'rb') as fp: |
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data = json.load(fp) |
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if 'version' not in data: |
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return None |
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if 'branch' not in data: |
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return None |
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return data |
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except Exception, ex: |
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log.warn('Unable to read current version: %s', ex, exc_info=True) |
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return None |
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@classmethod |
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def installed(cls): |
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return { |
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'version': list(PLUGIN_VERSION_BASE), |
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'branch': PLUGIN_VERSION_BRANCH |
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} |
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@classmethod |
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def update(cls, data): |
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try: |
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with open(VERSION_PATH, 'wb') as fp: |
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json.dump(data, fp) |
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log.debug('Version updated to %r', data) |
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return True |
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except Exception, ex: |
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log.warn('Unable to write current version: %s', ex, exc_info=True) |
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return False |
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123
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1 |
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@staticmethod |
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def format(data): |
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if 'version' not in data: |
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return None |
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128
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if 'branch' not in data: |
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return None |
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return '%s-%s' % ( |
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'.'.join([ |
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str(x) for x in data['version'] |
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]), |
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data['branch'] |
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) |
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fuzeman /
Plex-Trakt-Scrobbler
