Tools: add script to check help URLs vs. available User's Guide chapters

tools/check_help_urls.py

@@ -0,0 +1,45 @@
+#!/usr/bin/env python3
+# Wireshark - Network traffic analyzer
+# By Gerald Combs <gerald@wireshark.org>
+# Copyright 1998 Gerald Combs
+#
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+'''
+Go through all user guide help URLs listed in the program
+and confirm these are present in the User's Guide source files.
+'''
+
+from re import search
+from glob import glob
+from sys import exit
+
+found = {}
+
+with open("ui/help_url.c") as f:
+    for line in f:
+        if url := search(r"user_guide_url\(\"(.*).html\"\);", line):
+            chapter = url.group(1)
+            found[chapter] = False
+
+adoc_files = glob("docbook/wsug_src/*.adoc")
+
+for adoc_file in adoc_files:
+    with open(adoc_file) as f:
+        for line in f:
+            if tag := search(r"^\[\#(.*)]", line):
+                chapter = tag.group(1)
+                if chapter in found:
+                    found[chapter] = True
+
+missing = False
+
+for chapter in found:
+    if not found[chapter]:
+        if not missing:
+            print("The following chapters are missing in the User's Guide:")
+            missing = True
+        print(chapter)
+
+if missing:
+    exit(-1)