#!/usr/bin/env python # Copyright 2024 Google LLC # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. import os import tempfile import shutil import sh tmp_dir = tempfile.mkdtemp() os.chdir(tmp_dir) print 'Downloading timezone data to {}'.format(tmp_dir) sh.wget('--retr-symlinks', 'ftp://ftp.iana.org/tz/tz*-latest.tar.gz') print 'Download complete' print sh.ls('-la', 'tzdata-latest.tar.gz').strip() sh.tar('-xvzf', 'tzdata-latest.tar.gz') # backward goes last so we can just always do backreferences for links sh.cat('africa', 'antarctica', 'asia', 'australasia', 'europe', 'etcetera', 'northamerica', 'southamerica', 'backward', _out='timezones_olson.txt') print 'Updated database written to {}'.format(os.path.realpath('timezones_olson.txt'))