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94 lines
1.3 KiB
Bash
Executable File
94 lines
1.3 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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# $Id: vcdiff,v 1.4 1993/12/03 09:29:18 eggert Exp eggert $
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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 # common SCCS hangouts
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echo=
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sid1=-r 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 $sid1 in
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-r)
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sid1=$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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