topology2: doc: topology2-generate-contents.sh: Script to generate contents

This commit adds topology2-generate-contents.sh the script to generate the
contents page that will be inline included to the mainpage added in the next
commit.

Signed-off-by: Jyri Sarha <jyri.sarha@linux.intel.com>

tools/topology/topology2/doc/topology2-generate-contents.sh

@@ -0,0 +1,31 @@
+#!/bin/bash
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright(c) 2023 Intel Corporation. All rights reserved.
+# This script generates the contents page and stores it in extra-contents/contents.doxy
+
+set -e
+cd "$(dirname "$0")"
+
+generate_contents ()
+{
+	cat <<EOF
+# This contents list is automatically generated by $0.
+/*! \page doc_contents
+    \section doc_classes Classes
+EOF
+	for ctype in Base Widget Control Dai Pipeline
+	do
+		echo "    \subsection doc_${ctype,}_classes $ctype Classes"
+		find .. -name \*.conf -print0 |
+		xargs -0 awk "/^Class\.$ctype\./ "'{
+			split($1, a, "\\.");
+			name = a[3]; gsub("\"", "", name); gsub("-", "_", name);
+			print "\t\\li \\ref " name
+		}' | sort -u
+		echo
+	done
+
+	echo '*/'
+}
+
+generate_contents