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114 lines
2.1 KiB
Bash
Executable File
114 lines
2.1 KiB
Bash
Executable File
#! /bin/sh
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#
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# Enhanced sccs diff utility for use with vc mode.
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# This version is more compatible with rcsdiff(1).
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#
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# Copyright (C) 1992, 1993, 1995, 1997, 2001
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# Free Software Foundation, Inc.
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#
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# This file is part of GNU Emacs.
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#
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# GNU Emacs is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2, or (at your option)
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# any later version.
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#
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# GNU Emacs is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with GNU Emacs; see the file COPYING. If not, write to the
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# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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# Boston, MA 02111-1307, USA.
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#
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# $Id: vcdiff,v 1.6 1997/01/01 05:33:42 eggert Exp $
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#
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DIFF="diff"
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usage="$0: Usage: vcdiff [--brief] [-q] [-r<sid1>] [-r<sid2>] [diffopts] sccsfile..."
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PATH=$PATH:/usr/ccs/bin:/usr/sccs:/usr/xpg4/bin # common SCCS hangouts
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echo=
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sid1= sid2=
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for f
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do
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case $f in
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-*)
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case $f in
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--brief)
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DIFF=cmp;;
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-q)
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echo=:;;
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-r?*)
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case $sid1 in
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'')
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sid1=$f
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;;
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*)
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case $sid2 in
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?*) echo "$usage" >&2; exit 2 ;;
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esac
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sid2=$f
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;;
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esac
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;;
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*)
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options="$options $f"
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;;
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esac
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shift
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;;
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*)
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break
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;;
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esac
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done
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case $# in
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0)
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echo "$usage" >&2
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exit 2
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esac
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rev1= rev2= status=0
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trap 'status=2; exit' 1 2 13 15
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trap 'rm -f $rev1 $rev2 || status=2; exit $status' 0
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for f
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do
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s=2
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case $f in
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s.* | */s.*)
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if
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rev1=/tmp/geta$$
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get -s -p -k $sid1 "$f" > $rev1 &&
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case $sid2 in
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'')
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workfile=`expr " /$f" : '.*/s.\(.*\)'`
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;;
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*)
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rev2=/tmp/getb$$
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get -s -p -k $sid2 "$f" > $rev2
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workfile=$rev2
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esac
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then
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$echo $DIFF $options $sid1 $sid2 $workfile >&2
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$DIFF $options $rev1 $workfile
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s=$?
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fi
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;;
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*)
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echo "$0: $f is not an SCCS file" >&2
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esac
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if test $status -lt $s
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then status=$s
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fi
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done
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