74 lines
2 KiB
JavaScript
74 lines
2 KiB
JavaScript
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import fs from 'fs'
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import path from 'path'
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import matter from 'gray-matter'
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import { unified } from 'unified'
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import remarkParse from 'remark-parse'
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import remarkGfm from 'remark-gfm'
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import remarkRehype from 'remark-rehype'
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import rehypeHighlight from 'rehype-highlight'
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import rehypeStringify from 'rehype-stringify'
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const fsPromises = fs.promises
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const postsDirectory = path.join(process.cwd(), 'posts')
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async function markdownToHtml(content) {
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return unified()
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.use(remarkParse)
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.use(remarkGfm)
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.use(remarkRehype)
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.use(rehypeHighlight)
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.use(rehypeStringify)
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.process(content)
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}
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export async function getPostSlugs() {
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return (await fsPromises.readdir(postsDirectory)).filter(fileName => fileName.match(/\.md$/)).map(fileName => {
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return fileName.replace(/\.md$/, '')
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})
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}
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export async function _getPostBySlug(slug) {
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const fileName = `${slug}.md`
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const fullPath = path.join(postsDirectory, fileName)
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const fileContents = await fsPromises.readFile(fullPath, 'utf8')
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const matterResult = matter(fileContents, { excerpt: true })
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const processedContent = await markdownToHtml(matterResult.content)
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const processedExcerpt = await markdownToHtml(matterResult.excerpt)
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return {
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...matterResult.data,
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slug,
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date: matterResult.data.date.toISOString().substring(0, 10),
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excerptHtml: processedExcerpt.toString(),
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contentHtml: processedContent.toString(),
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sortKey: matterResult.data.date,
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}
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}
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export async function getPostBySlug(slug) {
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const data = await _getPostBySlug(slug)
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delete data.sortKey
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return data
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}
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export async function getSortedPostsData() {
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const allPostsData = await Promise.all((await getPostSlugs()).map(_getPostBySlug))
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return allPostsData.sort(({ sortKey: a }, { sortKey: b }) => {
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[a, b] = [Date.parse(a), Date.parse(b)]
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if (a < b) {
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return 1
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} else if (a > b) {
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return -1
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} else {
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return 0
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}
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}).map((x) => {
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delete x.contentHtml
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delete x.sortKey
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return x
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})
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}
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