/usr/lib/emacs/23.3/x86_64-linux-gnu/vcdiff is in emacs23-bin-common 23.3+1-1ubuntu9.1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 | #! /bin/sh
# Enhanced sccs diff utility for use with vc mode.
# This version is more compatible with rcsdiff(1).
# Copyright (C) 1992, 1993, 1995, 1997, 2001, 2002, 2003, 2004, 2005,
# 2006, 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
# Author: Paul Eggert
# (according to authors.el)
# This file is part of GNU Emacs.
# GNU Emacs 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 3 of the License, or
# (at your option) any later version.
# GNU Emacs 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 GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
DIFF="diff"
usage="$0: Usage: vcdiff [--brief] [-q] [-r<sid1>] [-r<sid2>] [diffopts] sccsfile..."
# Now that we use `sccs get' rather than just `get', we don't need this.
# PATH=$PATH:/usr/ccs/bin:/usr/sccs:/usr/xpg4/bin # common SCCS hangouts
echo="echo"
sid1= sid2=
for f
do
case $f in
-*)
case $f in
--brief)
DIFF=cmp;;
-q)
echo=:;;
-r?*)
case $sid1 in
'')
sid1=$f
;;
*)
case $sid2 in
?*) echo "$usage" >&2; exit 2 ;;
esac
sid2=$f
;;
esac
;;
*)
options="$options $f"
;;
esac
shift
;;
*)
break
;;
esac
done
case $# in
0)
echo "$usage" >&2
exit 2
esac
rev1= rev2= status=0
trap 'status=2; exit' 1 2 13 15
trap 'rm -f $rev1 $rev2 || status=2; exit $status' 0
for f
do
s=2
case $f in
s.* | */s.*)
if
rev1=`mktemp /tmp/geta.XXXXXXXX`
sccs get -s -p -k $sid1 "$f" > $rev1 &&
case $sid2 in
'')
workfile=`expr " /$f" : '.*/s.\(.*\)'`
;;
*)
rev2=`mktemp /tmp/getb.XXXXXXXX`
sccs get -s -p -k $sid2 "$f" > $rev2
workfile=$rev2
esac
then
$echo $DIFF $options $rev1 $workfile >&2
$DIFF $options $rev1 $workfile
s=$?
fi
;;
*)
echo "$0: $f is not an SCCS file" >&2
esac
if test $status -lt $s
then status=$s
fi
done
# arch-tag: 4344ba3a-bcbe-4f77-971c-f43c1606953a
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