308 lines
8.4 KiB
Plaintext
308 lines
8.4 KiB
Plaintext
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#!/bin/bash
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# Copyright (c) 2015 Cisco and/or its affiliates.
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at:
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# This aptly-named script verifies and fixes time ordering
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# problems with Makefile.{am,in} aclocal.m4 configure* files.
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set -eu
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#set -vx
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touch=""
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commit=""
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comma_v=""
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aclocal=""
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optimize=""
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# The old autowank scheme used "touch <foo> ; sleep 1"
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# to ensure differentiable, ordered timestamps. Worked, but
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# took N seconds given N files to fix. We have an example
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# which wastes multiple minutes given the old scheme.
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#
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# This version generates a sequence of timestamps
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# starting an hour ago. That gives us
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# lots to play with, in case some obnoxious program feels the need
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# to complain about timestamps in the future.
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# If we're in UTC+N land, generate UTC+(N+1)
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# If we're in UTC-N land, generate UTC-(N-1)
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my_tz=`date +%z`
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sign=`echo $my_tz | sed -n -e 's/^\(.\{1\}\).*$/\1/p'`
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t=`echo $my_tz | sed -n -e 's/^\(.\{1\}\)//p'`
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tz_hour=`echo $t | sed -n -e 's/^\(.\{2\}\).*$/\1/p'`
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tz_hour=`echo $tz_hour | sed 's/^0//'`
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if [ $sign = "-" ] ; then
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sign="+"
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let tz_hour=$tz_hour+1
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if [[ $tz_hour -ge "24" ]] ; then
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tz_hour=0
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fi
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else
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sign="-"
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let tz_hour=$tz_hour-1 || true
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if [[ $tz_hour -lt "0" ]] ; then
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tz_hour=23
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fi
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fi
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# Timestamp, an hour ago:
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ts_begin=`TZ=UTC${sign}${tz_hour} date +%Y%m%d%H%M.%S`
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# break into constituent parts
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year=`echo $ts_begin | sed -n -e 's/^\(.\{4\}\).*$/\1/p'`
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t=`echo $ts_begin | sed -n -e 's/^\(.\{4\}\)//p'`
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month=`echo $t | sed -n -e 's/^\(.\{2\}\).*$/\1/p'`
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t=`echo $t | sed -n -e 's/^\(.\{2\}\)//p'`
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day=`echo $t | sed -n -e 's/^\(.\{2\}\).*$/\1/p'`
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t=`echo $t | sed -n -e 's/^\(.\{2\}\)//p'`
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hour=`echo $t | sed -n -e 's/^\(.\{2\}\).*$/\1/p'`
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t=`echo $t | sed -n -e 's/^\(.\{2\}\)//p'`
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min=`echo $t | sed -n -e 's/^\(.\{2\}\).*$/\1/p'`
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t=`echo $t | sed -n -e 's/^\(.\{2\}\)//p'`
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sec=`echo $t | sed -n -e 's/\.//p'`
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# How many days in the current month?
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# Good until someone changes the calendar rules
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days_in_current_month() {
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if [[ $month -eq 9 || $month -eq 4 \
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|| $month -eq 6 || $month -eq 11 ]] ; then
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return 30;
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fi
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if [[ $month -eq 2 ]] ; then
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let t=($year/400)*400
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if [[ $t -eq $year ]] ; then
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return 29;
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fi
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let t=($year/100)*100
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if [[ $t -eq $year ]] ; then
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return 28;
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fi
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let t=($year/4)*4
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if [[ $t -eq $year ]] ; then
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return 29;
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fi
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return 28;
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fi
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return 31;
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}
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# The next timestamp to issue via touch
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# A real hemorrhoid because bash isnt easily convinced
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# that 08 is a decimal number
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next_ts() {
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sec=`echo $sec | sed 's/^0//'`
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let sec=$sec+1
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if [[ "$sec" -lt "60" ]] ; then
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if [[ "$sec" -lt "10" ]] ; then
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sec=0$sec
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fi
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return 0;
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fi
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sec="00"
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min=`echo $min | sed 's/^0//'`
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let min=$min+1
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if [[ "$min" -lt "60" ]] ; then
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if [[ "$min" -lt "10" ]] ; then
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min=0$min
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fi
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return 0;
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fi
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min="00"
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hour=`echo $hour | sed 's/^0//'`
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let hour=$hour+1
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if [[ "$hour" -lt "24" ]] ; then
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if [[ "$hour" -lt "10" ]] ; then
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hour=0$hour
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fi
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return 0;
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fi
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hour="00"
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days_in_current_month
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days_in_month=$?
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if [[ "$day" -lt "$days_in_month" ]] ; then
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day=`echo $day | sed 's/^0//'`
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let day=$day+1
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if [[ "$day" -lt "10" ]] ; then
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day=0$day
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fi
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return 0;
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fi
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day="01"
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month=`echo $month | sed 's/^0//'`
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let month=$month+1
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if [[ "$month" -lt "13" ]] ; then
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if [[ "$month" -lt "10" ]] ; then
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month=0$month
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fi
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return 0;
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fi
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month="01"
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let year=$year+1
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return 0;
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}
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while [ $# != 0 ] ; do
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case "$1" in
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(--commav) comma_v=",v" ;;
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(--touch) touch=yes ;;
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(--aclocal) aclocal=yes ;;
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(--nooptimize) optimize="" ;;
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(--commit=*) commit="$1" ;;
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(*) echo "$0: usage [--touch|--commit|]" > /dev/stderr
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exit 17 ;;
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esac
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shift
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done
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if [ "${aclocal}" != "" ] ; then
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if [ -f aclocal.m4 ] ; then
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echo touching aclocal.m4
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sleep 1
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touch aclocal.m4
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else
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echo aclocal.m4 not found
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fi
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fi
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if [ "${comma_v}" != "" -a "${commit}" != "" ] ; then
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echo "No, you may NOT molest ,v files directly. Go away." > /dev/stderr
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exit 1
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fi
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function touchme ()
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{
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local victim="${1}"
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shift
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local touchmebaby=""
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local sein="is"
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local newer="no"
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local older="no"
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if [ ! -r "$victim" ] ; then
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return
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fi
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while [ $# != 0 ] ; do
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if [ "${1}" -nt "${victim}" ] ; then
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newer="yes"
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fi
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if [ "${1}" -ot "${victim}" ] ; then
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older="yes"
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fi
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if [ "${newer}" = "no" -a "${older}" = "no" ] ; then
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newer="yes"
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fi
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if [ "${newer}" = "yes" ] ; then
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if [ "${touchmebaby}" = "" ] ; then
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touchmebaby="${1}"
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else
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sein="are"
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touchmebaby="${touchmebaby} ${1}"
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fi
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fi
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shift
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done
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if [ -n "${touchmebaby}" ] ; then
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echo "*** ${touchmebaby} ${sein} newer than ${victim} "
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if [ -n "${touch}" ] ; then
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#
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# This is the old version, in case something backfires...
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if [ "${optimize}" != "yes" ] ; then
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echo "Fixing " ;touch -c "$victim" ; sleep 1
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else
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echo "Fixing "
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# echo touch -c -t $year$month$day$hour$min.$sec "$victim"
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touch -c -t $year$month$day$hour$min.$sec "$victim"
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next_ts
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fi
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fi
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fi
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}
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makefileins="`/usr/bin/find . -name Attic -prune -o -name Makefile.in${comma_v}`"
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# aclocal.m4 depends on ***/Makefile.am, configure.ac, acinclude.m4, *.m4 crap
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touchme aclocal.m4${comma_v} \
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`/usr/bin/find . -name Attic -prune -o -name Makefile.am${comma_v}` \
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"configure.in${comma_v}" "configure.ac${comma_v}" \
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"acinclude.m4${comma_v}"
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# Makefile.in must be newer than Makefile.am
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for f in $makefileins ; do
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d="`dirname ${f}`"
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touchme "${d}/Makefile.in${comma_v}" "${d}/Makefile.am${comma_v}"
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done
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# Makefile.in depends on aclocal.m4
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for f in $makefileins ; do
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d="`dirname $f`"
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touchme "${d}/Makefile.in${comma_v}" "aclocal.m4${comma_v}"
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done
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# config.in must be newer than aclocal.m4 and configure.ac
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if [ -f "config.in${comma_v}" ] ; then
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touchme "config.in${comma_v}" "aclocal.m4${comma_v}" \
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"configure.ac${comma_v}" \
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"configure.in${comma_v}"
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fi
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# config.h.in (or More Thoroughly Modern configh.in)
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# must be newer than aclocal.m4 and (obsolete) acconfig.h
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for c_h_in in config.h.in configh.in ; do
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if [ -f "${c_h_in}${comma_v}" ]; then
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touchme "${c_h_in}${comma_v}" "aclocal.m4${comma_v}" "acconfig.h${comma_v}"
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#>>>> WTF? Why? This is nonsensical
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## ***/Makefile.in must be newer than config.h.in
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#for f in $makefileins ; do
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# touchme "$f" "${c_h_in}${comma_v}"
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#done
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fi
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done
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# configure must be newer than everything
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# touchme configure $makefileins -- why would this be needed?
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touchme "configure${comma_v}" "aclocal.m4${comma_v}" "acconfig.h${comma_v}" \
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"config.in${comma_v}" "config.h.in${comma_v}" \
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"configh.in${comma_v}"
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if [ -n "${commit}" ] ; then
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commit="${commit:9}" # strip off "--commit="
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# First ***/Makefile.am,
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# configure.in, configure.ac,
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# ***/*.m4
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# acconfig.h
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cvs commit -m "${commit}" \
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`for f in ${makefileins} ; do \
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[ -f "$${f%.in}.am" ] && echo "$${f%.in}.am" ; \
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done` \
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`[ -f configure.in ] && echo configure.in` \
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`[ -f configure.ac ] && echo configure.ac` \
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`[ -f acconfig.h ] && echo acconfig.h` \
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`/usr/bin/find . -name '*.m4' -mindepth 2`
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# Next aclocal.m4
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[ -f "aclocal.m4" ] && cvs commit -m "${commit}" aclocal.m4
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# Next config.in, config.h.in, configh.in
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[ -f "config.in" ] && cvs commit -m "${commit}" config.in
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[ -f "config.h.in" ] && cvs commit -m "${commit}" config.h.in
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[ -f "configh.in" ] && cvs commit -m "${commit}" configh.in
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# Last ***/Makefile.in, configure
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cvs commit -m "${commit}" ${makefileins} configure
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fi
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