xdm-next

A next.js plugin for xdm's webpack plugin.

Install

Add Dep

yarn add --dev xdm-next

Add to config

// example.js

import xdm from 'xdm-next';

// base config
module.exports = {
    // next.js base config
    pageExtensions: [ ".txt" ] // for example
}

// example plugins
module.exports = myPlugin({ configFlag: true })(module.exports);
module.exports = xdm()(module.exports);

Configuration

The first parameter to xdm() is the same options that are passed to the xdm webpack plugin:

// src/index.ts#L109-L127

export const xdmPlugin = (options: XDMPluginOptions) => (config: NextConfig): NextConfig => ({
    ...config,
    pageExtensions: [ ...config?.pageExtensions ?? [] ],
    webpack(wpcfg, ...a) {
        wpcfg = {
            ...wpcfg as any,
            module: {
                ...(wpcfg as any)?.module,
                rules: [
                    ...(wpcfg as any)?.module?.rules,
                    { test: /\.mdx$/, use: [{loader: 'xdm/webpack.cjs', options }] }
                ]
            }
        }

        if (config.webpack) wpcfg = config.webpack(wpcfg, ...a);
        return wpcfg
    }
})

Missing bits

1. I made some effort to add types to this plugin. Even though next.config.js is not a typescript file, VSCode and other typescript IDEs will recognise the types it specifies. These types are missing a few things, such as the WebPack config types, which are too complicated to express here.
   I am happy to accept PRs to improve these types.

2. It is not possible without modifying the library to parse files that do not have filenames that end in .mdx. Plumbing this through is a little tricky as XDMPluginOptions is untyped (unknown). Also happy to accept PRs improving this.