generate_windows_timezone_map.php
22305aa53e49production

generate_windows_timezone_map.php
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			#!/usr/bin/env php
			<?php

			$root = dirname(dirname(dirname(__FILE__)));
			require_once $root.'/scripts/__init_script__.php';

			$xml = $root.'/externals/cldr/cldr_windows_timezones.xml';
			$xml = Filesystem::readFile($xml);
			$xml = new SimpleXMLElement($xml);

			$result_map = array();

			$ignore = array(
			'UTC',
			'UTC-11',
			'UTC-02',
			'UTC-08',
			'UTC-09',
			'UTC+12',
			);
			$ignore = array_fuse($ignore);

			$zones = $xml->windowsZones->mapTimezones->mapZone;
			foreach ($zones as $zone) {
			$windows_name = (string)$zone['other'];
			$target_name = (string)$zone['type'];

			// Ignore the offset-based timezones from the CLDR map, since we handle
			// these later.
			if (isset($ignore[$windows_name])) {
			continue;
			}

			// We've already seen this timezone so we don't need to add it to the map
			// again.
			if (isset($result_map[$windows_name])) {
			continue;
			}

			$result_map[$windows_name] = $target_name;
			}

			asort($result_map);

			echo id(new PhutilJSON())
			->encodeFormatted($result_map);