Do not generate the configurate theme style file for Rouge highlighter

[diguage]

The example:

= Example Manual
Doc Writer <doc.writer@example.org>
2014-09-09
:icons: font
:source-highlighter: rouge
:rouge-style: monokai
:stylesdir: assets/styles/
:linkcss:

This is a user manual for an example project.

[#introduction]
== Introduction

This project does something.
We just haven't decided what that is yet.

[#source-code]
== Source Code

[source,java]
.Java code from project
----
package com.diguage;

/**
 * @author D瓜哥 · https://www.diguage.com/
 */
public class Main {
    public static void main(String[] args)
        System.out.println("Hello, world");
    }
}
----

This page was built by the following command:

 $ mvn

The highlighter options are :source-highlighter: rouge and :rouge-style: monokai. But the generated style file is rouge-github.css.

If I use monokai, the generated style file is rouge-github.css. But the source-code.html links to rouge-monokai.css.

$ asciidoctor-multipage -v
Asciidoctor Multipage 0.0.16 using Asciidoctor 2.0.17 [https://asciidoctor.org]
Runtime Environment (ruby 3.0.0p0 (2020-12-25 revision 95aff21468) [x86_64-darwin19]) (lc:UTF-8 fs:UTF-8 in:UTF-8 ex:UTF-8)

$ asciidoctor -r asciidoctor-multipage -b multipage_html5 -D . -a toc=left index.adoc

$ tree .
.
├── assets
│   └── styles
│       ├── asciidoctor.css
│       └── rouge-github.css
├── index.adoc
├── index.html
├── introduction.html
└── source-code.html

It genereated the <link rel="stylesheet" href="assets/styles/rouge-monokai.css">, but did not generate the style file:

The segemnt of source-code.html:

<link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Open+Sans:300,300italic,400,400italic,600,600italic%7CNoto+Serif:400,400italic,700,700italic%7CDroid+Sans+Mono:400,700">
<link rel="stylesheet" href="assets/styles/asciidoctor.css">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
<link rel="stylesheet" href="assets/styles/rouge-monokai.css">

rouge-monokai.css should be generated. It is not rouge-github.css.

[owenh000]

Hi @diguage, thanks for the report; I was able to reproduce the behavior you have described.

Asciidoctor 2.0.17, with the stock html5 converter, writes out the stylesheet as rouge-monokai.css and references it correctly in the output HTML. However, with asciidoctor-multipage, rouge-github.css is written out instead while rouge-monokai.css is referenced in the HTML.

[owenh000]

Completing issue #46 might fix this bug.