78 lines
2.6 KiB
Python
78 lines
2.6 KiB
Python
# =============================================================================
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# Copyright (C) 2018 Filip Sufitchi
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#
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# This file is part of pyfa.
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#
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# pyfa 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 3 of the License, or
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# (at your option) any later version.
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#
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# pyfa 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 pyfa. If not, see <http://www.gnu.org/licenses/>.
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# =============================================================================
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import os
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import config
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import yaml
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from .jargon import Jargon
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from .resources import DEFAULT_DATA, DEFAULT_HEADER
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USER_JARGON_PATH = os.path.join(config.savePath, 'user_jargon.yaml') if config.savePath is not None else None
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class JargonLoader:
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def __init__(self):
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self._user_jargon_mtime = 0 # type: int
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self._jargon = None # type: Jargon
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def get_jargon(self) -> Jargon:
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if self._is_stale():
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self._load_jargon()
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return self._jargon
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def _is_stale(self):
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return (not self._jargon or not self._user_jargon_mtime or
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self.jargon_mtime != self._get_user_jargon_mtime())
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def _load_jargon(self):
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jargondata = yaml.load(DEFAULT_DATA, Loader=yaml.SafeLoader)
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if USER_JARGON_PATH is not None and os.path.isfile(USER_JARGON_PATH):
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with open(USER_JARGON_PATH) as f:
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userdata = yaml.load(f, Loader=yaml.SafeLoader)
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if userdata:
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jargondata.update(userdata)
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self.jargon_mtime = self._get_user_jargon_mtime()
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self._jargon = Jargon(jargondata)
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def _get_user_jargon_mtime(self) -> int:
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if USER_JARGON_PATH is None or not os.path.isfile(USER_JARGON_PATH):
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return 0
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return os.stat(USER_JARGON_PATH).st_mtime
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@staticmethod
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def init_user_jargon(jargon_path):
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if not os.path.exists(jargon_path):
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with open(jargon_path, 'w') as f:
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f.write(DEFAULT_HEADER)
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f.write('\n\n')
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_instance = None
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@staticmethod
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def instance():
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if not JargonLoader._instance:
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JargonLoader._instance = JargonLoader()
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return JargonLoader._instance
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if USER_JARGON_PATH is not None:
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JargonLoader.init_user_jargon(USER_JARGON_PATH)
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