entered into RCS

1 files changed, 86 insertions, 0 deletions

diff --git a/lib-src/vcdiff b/lib-src/vcdiff
new file mode 100755
index 00000000000..2dd48650d1e
--- /dev/null
+++ b/lib-src/vcdiff
@@ -0,0 +1,86 @@
+#!/bin/sh
+#
+# Enhanced sccs diff utility for use with vc mode.
+# This version is more compatible with rcsdiff(1).
+#
+#       $Id: vcdiff,v 1.2 1992/06/03 04:56:26 eric Exp $
+#
+
+DIFF="diff"
+usage="$0: Usage: vcdiff [-r<sid1>] [-r<sid2>] [diffopts] sccsfile..."
+
+sid1=-r sid2=
+
+for f
+do
+        case $f in
+        -*)
+                case $f in
+                -r?*)
+                        case $sid1 in
+                        -r)
+                                sid1=$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=/tmp/geta$$
+                        get -s -p -k $sid1 "$f" > $rev1 &&
+                        case $sid2 in
+                        '')
+                                workfile=`expr " /$f" : '.*/s.\(.*\)'`
+                                ;;
+                        *)
+                                rev2=/tmp/getb$$
+                                get -s -p -k $sid2 "$f" > $rev2
+                                workfile=$rev2
+                        esac
+                then
+                        echo $DIFF $options $sid1 $sid2 $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