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116 lines
2.2 KiB
Bash
Executable File
116 lines
2.2 KiB
Bash
Executable File
#! /bin/sh
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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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# Copyright (C) 1992, 1993, 1995, 1997, 2001, 2002, 2003, 2004, 2005,
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# 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
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# Author: Paul Eggert
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# (according to authors.el)
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# This file is part of GNU Emacs.
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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 3 of the License, or
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# (at your option) any later version.
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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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# You should have received a copy of the GNU General Public License
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# along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
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DIFF="diff"
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usage="$0: Usage: vcdiff [--brief] [-q] [-r<sid1>] [-r<sid2>] [diffopts] sccsfile..."
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# Now that we use `sccs get' rather than just `get', we don't need this.
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# PATH=$PATH:/usr/ccs/bin:/usr/sccs:/usr/xpg4/bin # common SCCS hangouts
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echo="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=`mktemp /tmp/geta.XXXXXXXX`
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sccs 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=`mktemp /tmp/getb.XXXXXXXX`
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sccs 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 $rev1 $workfile >&2
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$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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# arch-tag: 4344ba3a-bcbe-4f77-971c-f43c1606953a
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