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import os |
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import hashlib |
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import json |
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import io |
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from six.moves.urllib import request |
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from six.moves.urllib import error as urllib_error |
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try: |
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import dateutil |
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except ImportError: |
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print("dateutil not installed locally, adding src to Python path") |
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import sys |
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here = os.path.dirname(__file__) |
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sys.path.append(os.path.join(here, "src")) |
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print(sys.path) |
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from dateutil.zoneinfo import rebuild |
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METADATA_FILE = "zonefile_metadata.json" |
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def main(metadata_file): |
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with io.open(metadata_file, 'r') as f: |
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metadata = json.load(f) |
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releases_urls = metadata['releases_url'] |
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if metadata['metadata_version'] < 2.0: |
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releases_urls = [releases_urls] |
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if not os.path.isfile(metadata['tzdata_file']): |
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for ii, releases_url in enumerate(releases_urls): |
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print("Downloading tz file from mirror {ii}".format(ii=ii)) |
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try: |
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request.urlretrieve(os.path.join(releases_url, |
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metadata['tzdata_file']), |
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metadata['tzdata_file']) |
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except urllib_error.URLError as e: |
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print("Download failed, trying next mirror.") |
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last_error = e |
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continue |
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last_error = None |
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break |
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if last_error is not None: |
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raise last_error |
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with open(metadata['tzdata_file'], 'rb') as tzfile: |
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sha_hasher = hashlib.sha512() |
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sha_hasher.update(tzfile.read()) |
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sha_512_file = sha_hasher.hexdigest() |
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assert metadata['tzdata_file_sha512'] == sha_512_file, "SHA failed for" |
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print("Updating timezone information...") |
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rebuild.rebuild(metadata['tzdata_file'], zonegroups=metadata['zonegroups'], |
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metadata=metadata) |
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print("Done.") |
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if __name__ == "__main__": |
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import argparse |
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parser = argparse.ArgumentParser() |
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parser.add_argument('metadata', metavar='METADATA_FILE', |
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default=METADATA_FILE, |
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nargs='?') |
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args = parser.parse_args() |
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main(args.metadata) |
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