#!/bin/sh

# Test RCS's functions.
# The RCS commands are searched for in the PATH as usual;
# to test the working directory's commands, prepend . to your PATH.

# Test RCS by creating files RCS/a.* and RCS/a.c.
# If all goes well, output nothing, and remove the temporary files.
# Otherwise, send a message to standard output.
# Exit status is 0 if OK, 1 if an RCS bug is found, and 2 if scaffolding fails.
# With the -v option, output more debugging info.

# If diff outputs `No differences encountered' when comparing identical files,
# then rcstest may also output these noise lines; ignore them.

# The current directory and ./RCS must be readable, writable, and searchable.

#	$Id: rcstest,v 5.8 1991/11/20 17:58:10 eggert Exp $


#    Copyright 1990, 1991 by Paul Eggert
#    Distributed under license by the Free Software Foundation, Inc.
#
# This file is part of RCS.
#
# RCS is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
#
# RCS is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with RCS; see the file COPYING.  If not, write to
# the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
#
# Report problems and direct all questions to:
#
#     rcs-bugs@cs.purdue.edu

RCSINIT=-x
export RCSINIT

SLASH=/
RCSfile=RCS${SLASH}a.c
RCS_alt=RCS${SLASH}a.d
lockfile=RCS${SLASH}a._

case $1 in
-v) q=; set -x;;
'') q=-q;;
*) echo >&2 "$0: usage: $0 [-v]"; exit 2
esac

test -d RCS || {
	echo >&2 "$0: RCS: not a directory; please \`mkdir RCS' first."
	exit 1
}

rm -f a.* $RCSfile $RCS_alt $lockfile &&
echo 1.1 >a.11 &&
echo 1.1.1.1 >a.3x1 &&
echo 1.2 >a.12 || { echo "#initialization failed"; exit 2; }

case `diff -c a.11 a.3x1` in
*'! 1.1.1.1')
	diff='diff -c';;
*)
	echo "#warning: diff -c does not work, so diagnostics may be cryptic"
	diff=diff
esac

rcs -i -L -ta.11 $q a.c &&
<$RCSfile || {
	echo "#rcs -i -L failed; perhaps RCS is not properly installed."
	exit 1
}

rlog a.c >/dev/null || { echo "#rlog failed on empty RCS file"; exit 1; }
rm -f $RCSfile || exit 2

cp a.11 a.c &&
ci -ta.11 -mm $q a.c &&
<$RCSfile &&
rcs -L $q a.c || { echo "#ci+rcs -L failed"; exit 1; }
test ! -f a.c || { echo "#ci did not remove working file"; exit 1; }
for l in '' '-l'
do
	co $l $q a.c &&
	test -f a.c || { echo '#co' $l did not create working file; exit 1; }
	$diff a.11 a.c || { echo '#ci' followed by co $l is not a no-op; exit 1; }
done

cp a.12 a.c &&
ci -mm $q a.c &&
co $q a.c &&
$diff a.12 a.c || { echo "#ci+co failed"; exit 1; }

co -r1.1 $q a.c &&
$diff a.11 a.c || { echo "#can't retrieve first revision"; exit 1; }

rm -f a.c &&
cp a.3x1 a.c &&
ci -r1.1.1 -mm $q a.c &&
co -r1.1.1.1 $q a.c &&
$diff a.3x1 a.c || { echo "#branches failed"; exit 1; }

co -l $q a.c &&
ci -f -mm $q a.c &&
co -r1.3 $q a.c &&
$diff a.12 a.c || { echo "#(co -l; ci -f) failed"; exit 1; }

co -l $q a.c &&
echo 1.4 >a.c &&
ci -l -mm $q a.c &&
echo error >a.c &&
ci -mm $q a.c || { echo "#ci -l failed"; exit 1; }

co -l $q a.c &&
echo 1.5 >a.c &&
ci -u -mm $q a.c &&
<a.c || { echo "#ci -u didn't create a working file"; exit 1; }
rm -f a.c &&
echo error >a.c || exit 2
ci -mm $q a.c 2>/dev/null && { echo "#ci -u didn't unlock the file"; exit 1; }

rm -f a.c &&
rcs -l $q a.c &&
co -u $q a.c || { echo "#rcs -l + co -u failed"; exit 1; }
rm -f a.c &&
echo error >a.c || exit 2
ci -mm $q a.c 2>/dev/null && { echo "#co -u didn't unlock the file"; exit 1; }

rm -f a.c &&
cp a.11 a.c &&
co -f $q a.c || { echo "#co -f failed"; exit 1; }
$diff a.11 a.c >/dev/null && { echo "#co -f had no effect"; exit 1; }

co -p1.1 $q a.c >a.t &&
$diff a.11 a.t || { echo "#co -p failed"; exit 1; }

for n in n N
do
	rm -f a.c &&
	co -l $q a.c &&
	echo $n >a.$n &&
	cp a.$n a.c &&
	ci -${n}n -mm $q a.c &&
	co -rn $q a.c &&
	$diff a.$n a.c || { echo "#ci -$n failed"; exit 1; }
done

case $LOGNAME in
?*) me=$LOGNAME;;
*)
	case $USER in
	?*) me=$USER;;
	*)
		me=`who am i` || exit 2
		me=`echo "$me" | sed -e 's/ .*//' -e 's/.*!//'`
		case $me in
		'') echo >&2 "$0: cannot deduce user name"; exit 2
		esac
	esac
esac
date=`date -u 2>/dev/null` ||
date=`TZ=GMT0 date 2>/dev/null` ||
date=`TZ= date` || exit 2
set $date
case $2 in
Jan) m=01;; Feb) m=02;; Mar) m=03;; Apr) m=04;; May) m=05;; Jun) m=06;;
Jul) m=07;; Aug) m=08;; Sep) m=09;; Oct) m=10;; Nov) m=11;; Dec) m=12;;
*) echo >&2 "$0: $2: unknown month name"; exit 2
esac
case $3 in
?) d=0$3;;
*) d=$3
esac
case $6 in
[0-9][0-9][0-9][0-9]*) D=$6/$m/$d;;
*)
	case $5 in
	[0-9][0-9][0-9][0-9]*) D=$5/$m/$d;;
	*) echo >&2 "$0: bad date format: $date"; exit 2
	esac
esac
T=$4
case $PWD in
'') PWD=`pwd`
esac &&
co -l $q a.c &&
sed 's/@/$/g' >a.kv <<EOF
@Author: w @
@Date: $D $T @
@Header: $PWD$SLASH$RCSfile 2.1 $D $T w s @
@Id: a.c 2.1 $D $T w s @
@Locker:  @
@Log: a.c @
 * Revision 2.1  $D  $T  w
 * m
 *
@RCSfile: a.c @
@Revision: 2.1 @
@Source: $PWD$SLASH$RCSfile @
@State: s @
EOF
test $? = 0 &&
sed 's/:.*\$/$/' a.kv >a.k &&
sed -e 's/w s [$]/w s '"$me"' $/' -e 's/[$]Locker: /&'"$me/" a.kv >a.kvl &&
sed -e '/^\$/!d' -e 's/\$$/: old $/' a.k >a.o &&
sed -e 's/\$[^ ]*: //' -e 's/ \$//' a.kv >a.v &&
cp a.o a.c &&
ci -d"$date" -ss -ww -u2.1 -mm $q a.c &&
$diff a.kv a.c || { echo "#keyword expansion failed"; exit 1; }
co -p -ko $q a.c >a.oo &&
$diff a.o a.oo || { echo "#co -p -ko failed"; exit 1; }
cp a.kv a.o || exit 2
rcs -o2.1 $q a.c &&
rcs -l $q a.c &&
ci -k -u $q a.c &&
$diff a.kv a.c || { echo "#ci -k failed"; exit 1; }
sed '/^[^$]/d' a.kv >a.i &&
ident a.c >a.i1 &&
sed -e 1d -e 's/^[	 ]*//' a.i1 >a.i2 &&
$diff a.i a.i2 || { echo "#ident failed"; exit 1; }

rcs -i $q a.c 2>/dev/null && { echo "#rcs -i permitted existing file"; exit 1; }

co -l $q a.c &&
echo 2.2 >a.c &&
ci -mm $q a.c &&
echo 1.1.1.2 >a.c &&
rcs -l1.1.1 $q a.c &&
ci -r1.1.1.2 -mm $q a.c &&
rcs -b1.1.1 $q a.c &&
test " `co -p $q a.c`" = ' 1.1.1.2' || { echo "#rcs -b1.1.1 failed"; exit 1; }
rcs -b $q a.c &&
test " `co -p $q a.c`" = ' 2.2' || { echo "#rcs -b failed"; exit 1; }

echo 2.3 >a.c || exit 2
rcs -U $q a.c || { echo "#rcs -U failed"; exit 1; }
ci -mm $q a.c || { echo "#rcs -U didn't unset strict locking"; exit 1; }
rcs -L $q a.c || { echo "#rcs -L failed"; exit 1; }
echo error >a.c || exit 2
ci -mm $q a.c 2>/dev/null && { echo "#ci retest failed"; exit 1; }

rm -f a.c &&
log0=`rlog -h a.c` &&
co -l $q a.c &&
ci -mm $q a.c &&
log1=`rlog -h a.c` &&
test " $log0" = " $log1" || { echo "#unchanged ci didn't revert"; exit 1; }

rm -f a.c &&
rcs -nN:1.1 $q a.c &&
co -rN $q a.c &&
$diff a.11 a.c || { echo "#rcs -n failed"; exit 1; }

rcs -NN:2.1 $q a.c &&
co -rN $q a.c &&
$diff a.kv a.c || { echo "#rcs -N failed"; exit 1; }

co -l $q a.c &&
rcs -c':::' $q a.c &&
echo '$''Log$' >a.c &&
ci -u -mm $q a.c &&
test " `sed '$!d' a.c`" = ' :::' || { echo "#rcs -c failed"; exit 1; }

rcs -o2.2: $q a.c &&
co $q a.c &&
$diff a.kv a.c || { echo "#rcs -o failed"; exit 1; }

rcsdiff -r1.1 -r2.1 $q a.c >a.0
case $? in
1) ;;
*) echo "#rcsdiff bad status"; exit 1
esac
diff a.11 a.kv >a.1
$diff a.0 a.1 || { echo "#rcsdiff failed"; exit 1; }

rcs -l2.1 $q a.c || { echo "#rcs -l2.1 failed"; exit 1; }
for i in k kv kvl o v
do
	rm -f a.c &&
	cp a.$i a.c &&
	rcsdiff -k$i $q a.c || { echo "#rcsdiff -k$i failed"; exit 1; }
done
co -p1.1 -ko $q a.c >a.t &&
$diff a.11 a.t || { echo "#co -p1.1 -ko failed"; exit 1; }
rcs -u2.1 $q a.c || { echo "#rcs -u2.1 failed"; exit 1; }

rm -f a.c &&
co -l $q a.c &&
cat >a.c <<'EOF'
2.2
a
b
c
d
EOF
test $? = 0 &&
ci -l -mm $q a.c &&
co -p2.2 $q a.c | sed -e s/2.2/2.3/ -e s/b/b1/ >a.c &&
ci -l -mm $q a.c &&
co -p2.2 $q a.c | sed -e s/2.2/new/ -e s/d/d1/ >a.c || exit 2
cat >a.0 <<'EOF'
2.3
a
b1
c
d1
EOF
cat >a.1 <<'EOF'
<<<<<<< a.c
new
=======
2.3
>>>>>>> 2.3
a
b1
c
d1
EOF
rcsmerge -r2.2 -r2.3 $q a.c
case $? in
0)
	if $diff a.0 a.c >/dev/null
	then echo "#warning: diff3 -E does not work, " \
		"so merge and rcsmerge ignore overlaps and suppress overlap lines."
	else
		$diff a.1 a.c || { echo "#rcsmerge failed (status 0)"; exit 1; }
		echo "#warning: The diff3 lib program exit status ignores overlaps," \
			"so rcsmerge does not warn about overlap lines that it generates."
	fi
	;;
1)
	$diff a.1 a.c || { echo "#rcsmerge failed (status 1)"; exit 1; }
	;;
*)
	echo "#rcsmerge bad status"; exit 1
esac

nl='
'
{
	co -p $q a.c | tr "$nl" '\200' >a.24 &&
	cp a.24 a.c &&
	ciOut=`(ci -l -mm $q a.c 2>&1)` &&
	case $ciOut in
	?*) echo >&2 "$ciOut"
	esac &&
	co -p $q a.c | tr '\200' "$nl" >a.c &&
	rcsdiff -r2.3 $q a.c >/dev/null &&

	echo 2.5 >a.c &&
	ci -l -mm $q a.c &&
	cp a.24 a.c &&
	rcsdiff -r2.4 $q a.c >/dev/null
} || echo "#warning: Traditional diff is used, so RCS is limited to text files."

rcs -u -o2.4: $q a.c || { echo "#rcs -u -o failed"; exit 1; }

rcs -i -Aa.c -t- $q a.d || { echo "#rcs -i -A failed"; exit 1; }

rlog -r2.1 a.c >a.t &&
grep '^checked in with -k' a.t >/dev/null &&
sed '/^checked in with -k/d' a.t >a.u &&
$diff - a.u <<EOF

RCS file: $RCSfile
Working file: a.c
head: 2.3
branch:
locks: strict
access list:
symbolic names:
	N: 2.1
	n: 1.8
comment leader: ":::"
keyword substitution: kv
total revisions: 13;	selected revisions: 1
description:
1.1
----------------------------
revision 2.1
date: $D $T;  author: w;  state: s;  lines: +13 -1
=============================================================================
EOF
test $? = 0 || { echo "#rlog failed"; exit 1; }


test ! -f $lockfile || { echo "#lock file not removed"; exit 1; }

exec rm -f a.* $RCSfile $RCS_alt