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Diffstat (limited to 'lib/time/update.bash')
| -rwxr-xr-x | lib/time/update.bash | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/lib/time/update.bash b/lib/time/update.bash new file mode 100755 index 000000000..ef7fdc79b --- /dev/null +++ b/lib/time/update.bash @@ -0,0 +1,50 @@ +#!/bin/sh +# 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. + +# Versions to use. +CODE=2011i +DATA=2011n + +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. + |