MarkdownWikiBundle

This bundle allows you to create rich subpages in a Symfony project using Markdown. Pages are stored in a file cache and sourced from an external directory, for example a Git submodule.

You can use this bundle to create help sections, information wikis or any other type of sub page, that is not supposed to be hardcoded into your Symfony codebase.

Features

• Pages sourced from Markdown files
• Page meta stored in separate YAML files
• Multi-language support without constraints for locale codes
• Custom implementations for parsing, storing and fetching pages

Requirements

• Symfony 5.3+
• PHP 8

Installation

composer require gigadrive/markdown-wiki-bundle

Configuration

This bundle is configured using standard Symfony bundle configuration.

# config/packages/markdown_wiki_bundle.yaml
markdown_wiki_bundle:
    source_directory: "%kernel.project_dir%/example-wiki/pages/"

• source_directory defines a path to the directory holding your source files. These are the files that make up the content and data of your wiki. For best practice, use a Git submodule.

Usage

Once you have installed and configured the bundle, you need to create a file structure for your Markdown files. You can find an example wiki for help here.

The file structure within your wiki directory is held simple.

• Every folder represents a level of your page's path.
• Every folder for a page needs to contain two files, one called meta.yaml and one called content.md. If you wish to support multiple languages, name these files depending on your language code. For example for an English page, call them en.md and en.yaml
• meta.yaml files need to contain the following keys: title The page's title description The page's description Any other keys will be passed on as "custom attributes". If you need any other data for a page, save it here.

Example: If you want to create a page with the path /account/creation, you would need a folder with the path /account/creation. In that folder, you would create a file named meta.yaml and a file named content.md. The first contains meta data about your page, the second contains your actual page content.

Serving pages

You can find an example Controller to serve pages here.

Customizing the parser

MarkdownWikiBundle is built using Parsedown, a free and open-source library to parse Markdown with PHP. This bundle registers Parsedown as a service (MarkdownWikiParser) and uses it for parsing. To overwrite parsing behavior, do the following:

First, create your own implementation of the parser:

namespace App\Service;

use Gigadrive\Bundle\MarkdownWikiBundle\Service\MarkdownWikiParser;

class ExampleParser extends MarkdownWikiParser {
    // TODO: Extend Parsedown
}

Now you have a class that extends Parsedown. Refer to Parsedown's documentation to extend parsing behavior in this new service. Once you are done, register your new parser by overwriting it in the Symfony container:

# config/services.yaml
services:
    app.parser:
        class: App\Service\ExampleParser

    markdownwiki.parser:
        alias: app.parser

Customizing the storage

By default, pages are cached in the Symfony file cache. This behavior can be overwritten using the MarkdownWikiStorageInterface. With this interface, you can create your own storage behavior and save cached pages in Redis, Doctrine or wherever you need.

To ensure that the bundle uses your storage and not the default one, the markdownwiki.storage container key needs to be overwritten:

# config/services.yaml
services:
    markdownwiki.storage.example:
        class: App\Service\YourStorageImplementation

    markdownwiki.storage:
        alias: markdownwiki.storage.example

Example Wiki

This bundle was created for the MCSkinHistory help section. You can find the source of it here to help you understand the intended structure for a wiki like this.

Rebuilding the caches

Whenever there is an update to the wiki pages, the internal caches of the bundle need to be rebuilt. This can be done by running the following console command, which comes with this bundle:

php bin/console wiki:rebuild-storage-cache

Caches can also be rebuilt programatically through the MarkdownWikiStorageService:

use Gigadrive\Bundle\MarkdownWikiBundle\Service\MarkdownWikiStorageService;

class ExampleService {
    public function __construct(
        protected MarkdownWikiStorageService $storageService
    ) {
    }

    public function rebuildCaches() {
        $this->storageService->rebuildStorageCache();
    }
}

Testing

This bundle uses PHPUnit as a testing framework.

When developing for this bundle, use the following commands to test its functionality:

git submodule update --init --recursive
composer install
php ./vendor/bin/phpunit

Copyright and License

This program was developed by Mehdi Baaboura and published by Gigadrive UG under the MIT License. For more information click here.