gnu/usr.bin/rcs/rcsfreeze/rcsfreeze.sh

   1 #! /bin/sh
   2
   3 # rcsfreeze - assign a symbolic revision number to a configuration of RCS files
   4
   5 #       $NetBSD: rcsfreeze.sh,v 1.3 1996/10/15 07:00:43 veego Exp $
   6 #
   7 #       Id: rcsfreeze.sh,v 4.6 1993/11/03 17:42:27 eggert Exp
   8
   9 #       The idea is to run rcsfreeze each time a new version is checked
  10 #       in. A unique symbolic revision number (C_[number], where number
  11 #       is increased each time rcsfreeze is run) is then assigned to the most
  12 #       recent revision of each RCS file of the main trunk.
  13 #
  14 #       If the command is invoked with an argument, then this
  15 #       argument is used as the symbolic name to freeze a configuration.
  16 #       The unique identifier is still generated
  17 #       and is listed in the log file but it will not appear as
  18 #       part of the symbolic revision name in the actual RCS file.
  19 #
  20 #       A log message is requested from the user which is saved for future
  21 #       references.
  22 #
  23 #       The shell script works only on all RCS files at one time.
  24 #       It is important that all changed files are checked in (there are
  25 #       no precautions against any error in this respect).
  26 #       file names:
  27 #       {RCS/}.rcsfreeze.ver    version number
  28 #       {RCS/}.rscfreeze.log    log messages, most recent first
  29
  30 PATH=/bin:/usr/bin:$PATH
  31 export PATH
  32
  33 DATE=`date` || exit
  34 # Check whether we have an RCS subdirectory, so we can have the right
  35 # prefix for our paths.
  36 if test -d RCS
  37 then RCSDIR=RCS/ EXT=
  38 else RCSDIR= EXT=,v
  39 fi
  40
  41 # Version number stuff, log message file
  42 VERSIONFILE=${RCSDIR}.rcsfreeze.ver
  43 LOGFILE=${RCSDIR}.rcsfreeze.log
  44 # Initialize, rcsfreeze never run before in the current directory
  45 test -r $VERSIONFILE || { echo 0 >$VERSIONFILE && >>$LOGFILE; } || exit
  46
  47 # Get Version number, increase it, write back to file.
  48 VERSIONNUMBER=`cat $VERSIONFILE` &&
  49 VERSIONNUMBER=`expr $VERSIONNUMBER + 1` &&
  50 echo $VERSIONNUMBER >$VERSIONFILE || exit
  51
  52 # Symbolic Revision Number
  53 SYMREV=C_$VERSIONNUMBER
  54 # Allow the user to give a meaningful symbolic name to the revision.
  55 SYMREVNAME=${1-$SYMREV}
  56 echo >&2 "rcsfreeze: symbolic revision number computed: \"${SYMREV}\"
  57 rcsfreeze: symbolic revision number used:     \"${SYMREVNAME}\"
  58 rcsfreeze: the two differ only when rcsfreeze invoked with argument
  59 rcsfreeze: give log message, summarizing changes (end with EOF or single '.')" \
  60         || exit
  61
  62 # Stamp the logfile. Because we order the logfile the most recent
  63 # first we will have to save everything right now in a temporary file.
  64 TMPLOG=/tmp/rcsfrz$$
  65 trap 'rm -f $TMPLOG; exit 1' 1 2 13 15
  66 # Now ask for a log message, continously add to the log file
  67 (
  68         echo "Version: $SYMREVNAME($SYMREV), Date: $DATE
  69 -----------" || exit
  70         while read MESS
  71         do
  72                 case $MESS in
  73                 .) break
  74                 esac
  75                 echo "  $MESS" || exit
  76         done
  77         echo "-----------
  78 " &&
  79         cat $LOGFILE
  80 ) >$TMPLOG &&
  81
  82 # combine old and new logfiles
  83 cp $TMPLOG $LOGFILE &&
  84 rm -f $TMPLOG &&
  85
  86 # Now the real work begins by assigning a symbolic revision number
  87 # to each rcs file.  Take the most recent version on the default branch.
  88
  89 # If there are any .*,v files, throw them in too.
  90 # But ignore RCS/.* files that do not end in ,v.
  91 DOTFILES=
  92 for DOTFILE in ${RCSDIR}.*,v
  93 do
  94         if test -f "$DOTFILE"
  95         then
  96                 DOTFILES="${RCSDIR}.*,v"
  97                 break
  98         fi
  99 done
 100
 101 exec rcs -q -n$SYMREVNAME: ${RCSDIR}*$EXT $DOTFILES