rcsfreeze.sh revision 9
1#! /bin/sh 2 3# rcsfreeze - assign a symbolic revision number to a configuration of RCS files 4 5# $Id: rcsfreeze.sh,v 4.4 1991/04/21 11:58:24 eggert Exp $ 6 7# The idea is to run rcsfreeze each time a new version is checked 8# in. A unique symbolic revision number (C_[number], where number 9# is increased each time rcsfreeze is run) is then assigned to the most 10# recent revision of each RCS file of the main trunk. 11# 12# If the command is invoked with an argument, then this 13# argument is used as the symbolic name to freeze a configuration. 14# The unique identifier is still generated 15# and is listed in the log file but it will not appear as 16# part of the symbolic revision name in the actual RCS file. 17# 18# A log message is requested from the user which is saved for future 19# references. 20# 21# The shell script works only on all RCS files at one time. 22# It is important that all changed files are checked in (there are 23# no precautions against any error in this respect). 24# file names: 25# {RCS/}.rcsfreeze.ver version number 26# {RCS/}.rscfreeze.log log messages, most recent first 27 28PATH=/usr/gnu/bin:/usr/local/bin:/bin:/usr/bin:/usr/ucb:$PATH 29export PATH 30 31DATE=`date` || exit 32# Check whether we have an RCS subdirectory, so we can have the right 33# prefix for our paths. 34if [ -d RCS ] 35then RCSDIR=RCS/ 36else RCSDIR= 37fi 38 39# Version number stuff, log message file 40VERSIONFILE=${RCSDIR}.rcsfreeze.ver 41LOGFILE=${RCSDIR}.rcsfreeze.log 42# Initialize, rcsfreeze never run before in the current directory 43[ -r $VERSIONFILE ] || { echo 0 >$VERSIONFILE && >>$LOGFILE; } || exit 44 45# Get Version number, increase it, write back to file. 46VERSIONNUMBER=`cat $VERSIONFILE` && 47VERSIONNUMBER=`expr $VERSIONNUMBER + 1` && 48echo $VERSIONNUMBER >$VERSIONFILE || exit 49 50# Symbolic Revision Number 51SYMREV=C_$VERSIONNUMBER 52# Allow the user to give a meaningful symbolic name to the revision. 53SYMREVNAME=${1-$SYMREV} 54echo >&2 "rcsfreeze: symbolic revision number computed: \"${SYMREV}\" 55rcsfreeze: symbolic revision number used: \"${SYMREVNAME}\" 56rcsfreeze: the two differ only when rcsfreeze invoked with argument 57rcsfreeze: give log message, summarizing changes (end with EOF or single '.')" \ 58 || exit 59 60# Stamp the logfile. Because we order the logfile the most recent 61# first we will have to save everything right now in a temporary file. 62TMPLOG=/tmp/rcsfrz$$ 63trap 'rm -f $TMPLOG; exit 1' 1 2 13 15 64# Now ask for a log message, continously add to the log file 65( 66 echo "Version: $SYMREVNAME($SYMREV), Date: $DATE 67-----------" || exit 68 while read MESS 69 do 70 case $MESS in 71 .) break 72 esac 73 echo " $MESS" || exit 74 done 75 echo "----------- 76" && 77 cat $LOGFILE 78) >$TMPLOG && 79 80# combine old and new logfiles 81cp $TMPLOG $LOGFILE && 82rm -f $TMPLOG || exit 83trap 1 2 13 15 84 85# Now the real work begins by assigning a symbolic revision number 86# to each rcs file. Take the most recent version of the main trunk. 87 88status= 89 90for FILE in ${RCSDIR}* 91do 92# get the revision number of the most recent revision 93 HEAD=`rlog -h $FILE` && 94 REV=`echo "$HEAD" | sed -n 's/^head:[ ]*//p'` && 95# assign symbolic name to it. 96 echo >&2 "rcsfreeze: $REV $FILE" && 97 rcs -q -n$SYMREVNAME:$REV $FILE || status=$? 98done 99 100exit $status 101