diff options
Diffstat (limited to 'lib/time/update.bash')
-rwxr-xr-x | lib/time/update.bash | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/lib/time/update.bash b/lib/time/update.bash new file mode 100755 index 0000000..48606b9 --- /dev/null +++ b/lib/time/update.bash @@ -0,0 +1,87 @@ +#!/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. +# +# To prepare an update for a new Go release, +# consult https://www.iana.org/time-zones for the latest versions, +# update CODE and DATA below, and then run +# +# ./update.bash -commit +# +# That will prepare the files and create the commit. +# +# To review such a commit (as the reviewer), use: +# +# git codereview change NNNNNN # CL number +# cd lib/time +# ./update.bash +# +# If it prints "No updates needed.", then the generated files +# in the CL match the update.bash in the CL. + +# Versions to use. +CODE=2022g +DATA=2022g + +set -e + +cd $(dirname $0) +rm -rf work +mkdir work +go build -o work/mkzip mkzip.go # build now for correct paths in build errors +cd work +mkdir zoneinfo +curl -sS -L -O https://www.iana.org/time-zones/repository/releases/tzcode$CODE.tar.gz +curl -sS -L -O https://www.iana.org/time-zones/repository/releases/tzdata$DATA.tar.gz +tar xzf tzcode$CODE.tar.gz +tar xzf tzdata$DATA.tar.gz + +if ! make CFLAGS=-DSTD_INSPIRED AWK=awk TZDIR=zoneinfo posix_only >make.out 2>&1; then + cat make.out + exit 2 +fi + +cd zoneinfo +../mkzip ../../zoneinfo.zip +cd ../.. +go generate time/tzdata + +files="update.bash zoneinfo.zip ../../src/time/tzdata/zipdata.go" +modified=true +if git diff --quiet $files; then + modified=false +fi + +if [ "$1" = "-work" ]; then + echo Left workspace behind in work/. + shift +else + rm -rf work +fi + +if ! $modified; then + echo No updates needed. + exit 0 +fi + +echo Updated for $CODE/$DATA: $files + +commitmsg="lib/time: update to $CODE/$DATA + +Commit generated by update.bash. + +For #22487. +" + +if [ "$1" = "-commit" ]; then + echo "Creating commit. Run 'git reset HEAD^' to undo commit." + echo + git commit -m "$commitmsg" $files + echo + git log -n1 --stat + echo +fi |