Update tapdiffer.

diff --git a/test/tapdiffer b/test/tapdiffer
index b529a3931fb55fbf9d642b70103883658aef78c6..4af0c83e29b882c9c166e64508ca9e93bd5a3d72 100755 (executable)
--- a/test/tapdiffer
+++ b/test/tapdiffer
@@ -1,4 +1,6 @@
 #! /bin/sh
+# SPDX-FileCopyrightText: Eric S. Raymond <esr@thyrsus.com>
+# SPDX-License-Identifier: MIT-0
 #
 # tapdiffer - Render diff between input and checkfile as a TAP report
 #
@@ -8,24 +10,43 @@
 # A nonempty diff is shipped as a TAP YAML block following "not ok" 
 # unless QUIET=1 in the environment.
 #
+# This code is intended to be embedded in your project. The author
+# grants permission for it to be distributed under the prevailing
+# license of your project if you choose, provided that license is
+# OSD-compliant; otherwise the following SPDX tag incorporates the
+# MIT No Attribution license by reference.
+#
+# A newer version may be available at https://gitlab.com/esr/tapview
+# Check your last commit dqte for this file against the commit list
+# there to see if it might be a good idea to update.
+#
+diffopts=-u
+while getopts bn opt
+do
+    case $opt in
+       b) diffopts=-ub;;
+       *) echo "tapdiffer: unknown option ${opt}."; exit 1;;
+    esac
+done
+# shellcheck disable=SC2004
+shift $(($OPTIND - 1))
+
 legend=$1
 checkfile=$2
 
 trap 'rm /tmp/tapdiff$$' EXIT HUP INT QUIT TERM
 
-if diff --text -u ${checkfile} - >/tmp/tapdiff$$
+if diff --text "${diffopts}" "${checkfile}" - >/tmp/tapdiff$$
 then
        echo "ok - ${legend}"
-       exit 0
 else
-       echo "not ok - ${checkfile}: ${legend}"
+       echo "not ok - ${legend}"
        if [ ! "${QUIET}" = 1 ]
        then
                echo "  --- |"
                sed </tmp/tapdiff$$ -e 's/^/  /'
                echo "  ..."
        fi
-       exit 1
 fi
 
 # end