1# 2# This file and its contents are supplied under the terms of the 3# Common Development and Distribution License ("CDDL"), version 1.0. 4# You may only use this file in accordance with the terms of version 5# 1.0 of the CDDL. 6# 7# A full copy of the text of the CDDL should have accompanied this 8# source. A copy of the CDDL is also available via the Internet at 9# http://www.illumos.org/license/CDDL. 10# 11 12# 13# Copyright (c) 2014 Joyent, Inc. All rights reserved. 14# Copyright 2020 OmniOS Community Edition (OmniOSce) Association. 15# 16 17How to update the TZ database information. 18 19Welcome! You've probably heard that some aspect of time has changed and 20you're wondering what to do. The first thing to do is to grab the latest 21version of the time database which can currently be found at: 22 23http://www.iana.org/time-zones 24 25You'll need the data tarball. Most data files are used in the gate 26directly; however, a few have slightly different names. The following 27commands assume that you're inside of the directory you extracted the 28time zone files. 29 30$ cp africa antarctica asia australasia backward etcetera europe \ 31 northamerica southamerica $CODEMGR_WS/usr/src/data/zoneinfo 32 33Next you need to copy the country tab and the zone tab files. These have 34different names in our source tree. 35 36$ cp iso3166.tab $CODEMGR_WS/usr/src/data/zoneinfo/country.tab 37$ cp zone.tab $CODEMGR_WS/usr/src/data/zoneinfo/zone.tab.txt 38 39Now, you need to manually fix up the zone_sun.tab. zone_sun.tab has 40additional different zone names that the original does not. As things 41are changed and removed, or coordinates updated, the same should be done 42in zone_sun.tab. The simplest way known to deal with it today is 43something like the following: 44 45$ cd $CODEMGR_WS/usr/src/data/zoneinfo 46$ vimdiff zone.tab.txt zone_sun.tab 47 48And as you see things that show up as egregiously different, do a 'git 49diff zone.tab.txt' and see what changed and fix zone_sun.tab 50appropriately. Usually this means deleting removed entries and adding 51new ones. 52 53********** IMPORTANT ********** 54*** zone_sun.tab must remain sorted. 55*** The upstream zone.tab.txt is not always completely in alphabetical order. 56 57To check the final zone_sun.tab file, the `zonelint` script in the current 58directory can be used within a bldenv environment. First run `dmake install` 59to stage the zone files to proto, then run `./zonelint`. If it produces no 60output then you're okay. 61 62After that's done, you'll need to go through the more agonizing process of 63packaging. To do this, you'll want to look through the differences that have 64occurred in zone.tab.txt and backward. The contents of backward describe 65hardlinks that need to exist in packaging. Specifically, if you have a line in 66the form of: 67 68LINK Arda/Beleriand Arda/Gondolin 69 70That instructs that Gondolin should be hardlinked to Beleriand. In IPS parlance 71that'd be: 72 73hardlink path=usr/share/lib/zoneinfo/Arda/Gondolin target=../Arda/Beleriand 74 75The differences in zone.tab.txt describe the additions and removals of various 76file entries. If you're not friends with protocmp yet, this should help you out. 77Once both of those are done, you'll need to update the version of the package 78itself in the manifest. IANA releases these as <year><letter>, eg. 2013i. 79Instead, you need to encode that letter to its spot in the alphabet. So 2013i 80would become 2013.9. 81 82Once packaging is all done, then you should be all set. 83