refresh 6

tools/revert_patch.sh

@@ -0,0 +1,28 @@
+#!/bin/sh
+#
+# revert_patch.sh - Reverts an enhancement patch
+#
+
+if [ "$#" -ne 1 ]
+then
+    echo "Usage: $0 patch_file"
+    echo '    Reverts the changes made by an enhancement patch'
+    exit 1
+fi
+
+read -p "Do you wish to revert the patch '$1'? [Y/N] " response
+case "$response" in
+    Y|y)
+	patch -p1 -R < "$1"
+	;;
+    N|n)
+	echo 'Quit'
+	exit 1
+	;;
+    *)
+	echo "Invalid response '$response'."
+	exit 1
+	;;
+esac
+
+