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go/lib/time/update.bash
Alberto Donizetti fcee1e3739 time: vendor tzdata-2017b and update test
This change updates the vendored tzdata database to version 2017b
(released 2017-03-20).

The TestFirstZone test (which always uses the vendored database) is
updated to make it work with the new timezones database. (The Tokelau
abbreviation was changed from 'TKT' to the numeric abbreviation in
tzdata-2017a)

Fixes #19376

Change-Id: I0dea93e8703992de5c92c7840b8bacad9d02c50d
Reviewed-on: https://go-review.googlesource.com/44832
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2017-06-07 21:23:58 +00:00

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#!/bin/bash
# Copyright 2012 The Go Authors. All rights reserved.
# Use of this source code is governed by a BSD-style
# license that can be found in the LICENSE file.
# This script rebuilds the time zone files using files
# downloaded from the ICANN/IANA distribution.
# Consult http://www.iana.org/time-zones for the latest versions.
# Versions to use.
CODE=2017b
DATA=2017b
set -e
rm -rf work
mkdir work
cd work
mkdir zoneinfo
curl -O http://www.iana.org/time-zones/repository/releases/tzcode$CODE.tar.gz
curl -O http://www.iana.org/time-zones/repository/releases/tzdata$DATA.tar.gz
tar xzf tzcode$CODE.tar.gz
tar xzf tzdata$DATA.tar.gz
# Turn off 64-bit output in time zone files.
# We don't need those until 2037.
perl -p -i -e 's/pass <= 2/pass <= 1/' zic.c
make CFLAGS=-DSTD_INSPIRED AWK=awk TZDIR=zoneinfo posix_only
# America/Los_Angeles should not be bigger than 1100 bytes.
# If it is, we probably failed to disable the 64-bit output, which
# triples the size of the files.
size=$(ls -l zoneinfo/America/Los_Angeles | awk '{print $5}')
if [ $size -gt 1200 ]; then
echo 'zone file too large; 64-bit edit failed?' >&2
exit 2
fi
cd zoneinfo
rm -f ../../zoneinfo.zip
zip -0 -r ../../zoneinfo.zip *
cd ../..
echo
if [ "$1" = "-work" ]; then
echo Left workspace behind in work/.
else
rm -rf work
fi
echo New time zone files in zoneinfo.zip.