1
0
Fork 0
freesewing/packages/freesewing.shared/mdx/loader.js
2022-05-11 16:29:46 +02:00

88 lines
2.3 KiB
JavaScript

// We need fs and path to read from disk
import fs from 'fs'
import path from 'path'
// MDX compiler
import { compile } from '@mdx-js/mdx'
// Remark plugins we want to use
import remarkFrontmatter from 'remark-frontmatter'
import remarkGfm from 'remark-gfm'
import remarkCopyLinkedFiles from 'remark-copy-linked-files'
import { remarkIntroPlugin } from './remark-intro-plugin.mjs'
import mdxPluginToc from './mdx-plugin-toc.mjs'
import smartypants from 'remark-smartypants'
// Rehype plugins we want to use
import rehypeHighlight from 'rehype-highlight'
import rehypeAutolinkHeadings from 'rehype-autolink-headings'
import rehypeSlug from 'rehype-slug'
/*
* Summary: Loads markdown from disk and compiles it as MDX.
*
* @param (string) language - language to load (eg: 'en')
* @param (string) site - site to load (either 'dev' or 'org')
* @param (string) slug - slug of the page (eg: 'guides/patterns')
*
* @link https://mdxjs.com/guides/mdx-on-demand/
*
*/
const mdxLoader = async (language, site, slug) => {
// TODO: Will this work on Windows?
const md = await fs.promises.readFile(
path.resolve(`../../markdown/${site}/${slug}/${language}.md`),
'utf-8'
)
const intro = []
const mdx = String(
await compile(md, {
outputFormat: 'function-body',
remarkPlugins: [
remarkFrontmatter,
remarkGfm,
smartypants,
[
remarkCopyLinkedFiles,
{
destinationDir: path.resolve(`../freesewing.${site}/public/mdx`),
sourceDir: path.resolve(`../../markdown/${site}/${slug}`),
staticPath: '/mdx/',
}
],
[
remarkIntroPlugin,
{ intro }
]
],
rehypePlugins: [
rehypeHighlight,
rehypeSlug,
rehypeAutolinkHeadings,
],
})
)
// This is not ideal as we're adding a second pass but for now it will do
// See: https://github.com/remarkjs/remark-toc/issues/37
const toc = String(
await compile(md, {
outputFormat: 'function-body',
remarkPlugins: [
remarkFrontmatter,
remarkGfm,
smartypants,
[
mdxPluginToc,
{ language: 'en' }
]
],
rehypePlugins: [
rehypeSlug,
],
})
)
return {mdx, intro, toc}
}
export default mdxLoader