mirror of
https://github.com/kovidgoyal/calibre.git
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64 lines
2.1 KiB
Python
64 lines
2.1 KiB
Python
#!/usr/bin/env python
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# License: GPLv3 Copyright: 2023, Kovid Goyal <kovid at kovidgoyal.net>
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import fnmatch
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import optparse
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import os
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import shutil
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import time
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import zipfile
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from contextlib import suppress
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from functools import lru_cache
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from io import BytesIO
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from setup import Command, download_securely
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@lru_cache(2)
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def iso_codes_data():
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URL = 'https://download.calibre-ebook.com/iso-codes.zip'
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return download_securely(URL)
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class ISOData(Command):
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description = 'Get ISO codes name localization data'
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top_level_filename = 'iso-codes-main'
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_zip_data = None
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def add_options(self, parser):
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with suppress(optparse.OptionConflictError): # ignore if option already added
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parser.add_option('--path-to-isocodes', help='Path to previously downloaded iso-codes-main.zip')
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def run(self, opts):
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if self._zip_data is None and opts.path_to_isocodes:
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with open(opts.path_to_isocodes, 'rb') as f:
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self._zip_data = f.read()
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# get top level directory
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top = {item.split('/')[0] for item in zipfile.ZipFile(self.zip_data).namelist()}
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assert len(top) == 1
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self.top_level_filename = top.pop()
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@property
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def zip_data(self):
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return self._zip_data or iso_codes_data()
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def db_data(self, name: str) -> bytes:
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with zipfile.ZipFile(BytesIO(self.zip_data)) as zf:
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with zf.open(f'{self.top_level_filename}/data/{name}') as f:
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return f.read()
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def extract_po_files(self, name: str, output_dir: str) -> None:
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name = name.split('.', 1)[0]
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pat = f'{self.top_level_filename}/{name}/*.po'
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with zipfile.ZipFile(BytesIO(self.zip_data)) as zf:
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for name in fnmatch.filter(zf.namelist(), pat):
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dest = os.path.join(output_dir, name.split('/')[-1])
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zi = zf.getinfo(name)
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with zf.open(zi) as src, open(dest, 'wb') as d:
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shutil.copyfileobj(src, d)
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date_time = time.mktime(zi.date_time + (0, 0, -1))
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os.utime(dest, (date_time, date_time))
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iso_data = ISOData()
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