tools: Update make_cppdocs.bat for Doxygen support (see issue #3384)

tools/make_cppdocs.bat

@@ -1,18 +1,40 @@
 @echo off
+:: Copyright (c) 2022 The Chromium Embedded Framework Authors. All rights
+:: reserved. Use of this source code is governed by a BSD-style license
+:: that can be found in the LICENSE file.
+
+set RC=
+
 setlocal
 
-if "%1"=="" (
-set CPPDOC_EXE="C:\Program Files (x86)\richfeit\CppDoc\CppDoc.exe"
-set CPPDOC_REV="XXX"
-) else (
-set CPPDOC_EXE="C:\Program Files (x86)\richfeit\CppDoc\cppdoc_cmd.exe"
-set CPPDOC_REV="%1"
+:: Check if DOXYGEN_EXE is already provided via the environment.
+if exist "%DOXYGEN_EXE%" goto found_exe
+set DOXYGEN_EXE="C:\Program Files\doxygen\bin\doxygen.exe"
+if not exist %DOXYGEN_EXE% (
+echo ERROR: Please install Doxygen from https://doxygen.nl/ 1>&2
+set ERRORLEVEL=1
+goto end
 )
 
-if not exist %CPPDOC_EXE% (
-echo ERROR: Please install CppDoc from http://www.cppdoc.com/
-) else (
-%CPPDOC_EXE% -overwrite -title="CEF3 C++ API Docs - Revision %CPPDOC_REV%"  -footer="<center><a href="https://bitbucket.org/chromiumembedded/cef" target="_top">Chromium Embedded Framework (CEF)</a> Copyright &copy 2016 Marshall A. Greenblatt</center>" -namespace-as-project -comment-format="///;//;///" -classdir=projects -module="cppdoc-standard" -extensions=h -languages="c=cpp,cc=cpp,cpp=cpp,cs=csharp,cxx=cpp,h=cpp,hpp=cpp,hxx=cpp,java=java" -D"OS_WIN" -D"USING_CEF_SHARED" -D"__cplusplus" -D"CEF_STRING_TYPE_UTF16" -enable-author=false -enable-deprecations=true -enable-since=true -enable-version=false -file-links-for-globals=false -generate-deprecations-list=false -generate-hierarchy=true -header-background-dark="#ccccff" -header-background-light="#eeeeff" -include-private=false -include-protected=true -index-file-base=index -overview-html=overview.html -reduce-summary-font=true -selected-text-background=navy -selected-text-foreground=white -separate-index-pages=false -show-cppdoc-version=false -show-timestamp=false -summary-html=project.html -suppress-details=false -suppress-frames-links=false -table-background=white -wrap-long-lines=false ..\include #capi "..\docs\index.html"
-)
+:found_exe
 
-endlocal
+:: Environment variables inserted into the Doxyfile via `$(VAR_NAME)` syntax.
+for /F %%i in ('python.bat %~dp0\cef_version.py current') do set PROJECT_NUMBER=%%i
+
+:: Run from the top-level CEF directory so that relative paths resolve correctly.
+set CURRENT_PATH="%CD%"
+cd "%~dp0\.."
+
+%DOXYGEN_EXE% Doxyfile
+
+cd "%CURRENT_PATH%"
+
+:end
+endlocal & set RC=%ERRORLEVEL%
+goto omega
+
+:returncode
+exit /B %RC%
+
+:omega
+call :returncode %RC%