annotate env/lib/python3.7/site-packages/dateutil/zoneinfo/rebuild.py @ 0:26e78fe6e8c4 draft

"planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
author shellac
date Sat, 02 May 2020 07:14:21 -0400
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1 import logging
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2 import os
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3 import tempfile
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4 import shutil
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5 import json
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6 from subprocess import check_call
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7 from tarfile import TarFile
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8
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9 from dateutil.zoneinfo import METADATA_FN, ZONEFILENAME
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10
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11
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12 def rebuild(filename, tag=None, format="gz", zonegroups=[], metadata=None):
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13 """Rebuild the internal timezone info in dateutil/zoneinfo/zoneinfo*tar*
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14
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15 filename is the timezone tarball from ``ftp.iana.org/tz``.
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16
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17 """
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18 tmpdir = tempfile.mkdtemp()
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19 zonedir = os.path.join(tmpdir, "zoneinfo")
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20 moduledir = os.path.dirname(__file__)
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21 try:
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22 with TarFile.open(filename) as tf:
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23 for name in zonegroups:
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24 tf.extract(name, tmpdir)
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25 filepaths = [os.path.join(tmpdir, n) for n in zonegroups]
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26 try:
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27 check_call(["zic", "-d", zonedir] + filepaths)
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28 except OSError as e:
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29 _print_on_nosuchfile(e)
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30 raise
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31 # write metadata file
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32 with open(os.path.join(zonedir, METADATA_FN), 'w') as f:
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33 json.dump(metadata, f, indent=4, sort_keys=True)
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34 target = os.path.join(moduledir, ZONEFILENAME)
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35 with TarFile.open(target, "w:%s" % format) as tf:
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36 for entry in os.listdir(zonedir):
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37 entrypath = os.path.join(zonedir, entry)
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38 tf.add(entrypath, entry)
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39 finally:
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40 shutil.rmtree(tmpdir)
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41
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42
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43 def _print_on_nosuchfile(e):
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44 """Print helpful troubleshooting message
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45
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46 e is an exception raised by subprocess.check_call()
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47
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48 """
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49 if e.errno == 2:
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50 logging.error(
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51 "Could not find zic. Perhaps you need to install "
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52 "libc-bin or some other package that provides it, "
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53 "or it's not in your PATH?")