pass plugin options to setParserPlugin

[AlahmadiQ8]

reference to #3280.

Description

Currently, there is no way to pass options to remark parser plugins through setParserPlugins. For example, I wasn't able to use remark-custom-blocks since it requires to pass options.

This PR passes pluginOptions to setParserPlugins to solve this.

Example Usage

Here is an example of how gatsby-remark-custom-blocks plugin would be written.

const remarkCustomBlocks = require('remark-custom-blocks');

module.exports.setParserPlugins = ({ blocks }) => [
  [remarkCustomBlocks, blocks],
];

and in gatsby-config.js, here is how we pass required parser options.

module.exports = {
  plugins: [
    {
      resolve: 'gatsby-transformer-remark',
      options: {
        plugins: [
          {
            resolve: 'gatsby-remark-custom-blocks',
            options: {
              blocks: {
                danger: 'custom-block-danger',
                info: 'custom-block-info some-other-class',
              },
            },
          },
        ],
      },
    },
  ],
}

Testing

tbh not sure how I would add tests for this. Any feedback/examples is appreciated.

[gatsbybot]

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[gatsbybot]

Deploy preview ready!

Built with commit 3a0443f

https://deploy-preview-3297--gatsbygram.netlify.com

[KyleAMathews]

Probably the easiest way to test this is to build a plugin (e.g. gatsby-remark-custom-block) and PR it along with an example site.

[KyleAMathews]

Thanks! Great stuff!

[jlengstorf]

Hiya @AlahmadiQ8! 👋

This is definitely late, but on behalf of the entire Gatsby community, I wanted to say thank you for being here.

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