130 lines
4.2 KiB
TypeScript
130 lines
4.2 KiB
TypeScript
import fs from 'fs'
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import process from 'process'
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import { Feed } from 'feed'
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import articlesConfig from './articles/config.json'
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function getFiles(dir: string): string[] {
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return fs.readdirSync(dir).flatMap((name) => {
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const path = `${dir}/${name}`
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if (fs.statSync(path).isDirectory()) {
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return getFiles(path)
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} else {
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return [path]
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}
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})
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}
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const METADATA_BLOCK_REGEX = /^---\n([\s\S]*?)---\n/m
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const METADATA_REGEX = /^(\w+):(.*)$/gm
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function readArticleMetadata(path: string): Record<string, string> | null {
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const content = fs.readFileSync(path, { encoding: 'utf8' })
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const match: RegExpExecArray | null = METADATA_BLOCK_REGEX.exec(content)
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if (!match || !match[1]) {
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console.warn(`No metadata for: ${path}`)
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return null
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}
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let subMatch: RegExpExecArray | null = null
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const metadata: Record<string, string> = {
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path: path.replaceAll('/index.md', ''),
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}
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do {
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subMatch = METADATA_REGEX.exec(match[1])
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if (subMatch && subMatch[1] && subMatch[2]) {
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metadata[subMatch[1]] = subMatch[2].trim()
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}
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} while (subMatch)
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return metadata
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}
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function formatArticlePage(metadata: Record<string, string>, baseHtml: string): string {
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let outHtml = baseHtml
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outHtml = outHtml.replace(/<.*?property="og:url".*?>/gm, '')
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outHtml = outHtml.replace(
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/<\/head>/gm,
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`<meta property="og:url" content="${articlesConfig['base_url']}${metadata.path}/">\n</head>`,
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)
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const blog_title = articlesConfig['title']?.replace(/(<([^>]+)>)/gi, '').trim()
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if (metadata.title) {
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const title = metadata.title.replace(/(<([^>]+)>)/gi, '').trim()
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outHtml = outHtml.replace(/<title>.*?<\/title>/gm, `<title>${blog_title} — ${title}</title>`)
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outHtml = outHtml.replace(/<.*?property="og:title".*?>/gm, '')
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outHtml = outHtml.replace(
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/<\/head>/gm,
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`<meta property="og:title" content="${title}">\n</head>`,
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)
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outHtml = outHtml.replace(/<.*?property="og:description".*?>/gm, '')
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outHtml = outHtml.replace(
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/<\/head>/gm,
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`<meta property="og:description" content="${blog_title}">\n</head>`,
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)
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}
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if (metadata.thumbnail) {
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outHtml = outHtml.replace(/<.*?property="og:image".*?>/gm, '')
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outHtml = outHtml.replace(
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/<\/head>/gm,
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`<meta property="og:image" content="${metadata.thumbnail.replace('./', articlesConfig['base_url'] + metadata.path + '/')}">\n</head>`,
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)
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}
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return outHtml
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}
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function addFeedArticle(metadata: Record<string, string>, feed: Feed) {
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if (metadata.draft !== 'true') {
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feed.addItem({
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title: metadata.title.replace(/(<([^>]+)>)/gi, '').trim(),
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id: metadata.path,
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link: `${articlesConfig['base_url']}${metadata.path}/`,
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date: new Date(Date.parse(metadata.date)),
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image: metadata.thumbnail.replace('./', articlesConfig['base_url'] + metadata.path + '/'),
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})
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}
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}
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const indexContent = fs.readFileSync('dist/index.html', { encoding: 'utf8' })
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if (!indexContent) {
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console.error('Could not read dist/index.html')
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process.exit(1)
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}
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const metadatas = getFiles('articles')
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.filter((path) => path.match(/\/index.md$/))
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.map((path) => readArticleMetadata(path))
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.filter((metadata) => !!metadata)
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const feed = new Feed({
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title: articlesConfig['title']?.replace(/(<([^>]+)>)/gi, '').trim() ?? '',
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id: articlesConfig['base_url'],
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link: articlesConfig['base_url'],
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language: articlesConfig['lang'],
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favicon: articlesConfig['base_url'] + 'articles/favicon.ico',
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generator: 'md-blog',
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feedLinks: {
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json: articlesConfig['base_url'] + 'feed.json',
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atom: articlesConfig['base_url'] + 'atom.xml',
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rss: articlesConfig['base_url'] + 'rss',
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},
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updated: new Date(
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Math.max(
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0,
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...metadatas
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.filter((metadata) => metadata.draft !== 'true')
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.map((metadata) => Date.parse(metadata.date)),
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),
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),
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})
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metadatas.forEach((metadata) => {
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fs.writeFileSync(`dist/${metadata.path}/index.html`, formatArticlePage(metadata, indexContent))
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console.info(`Wrote dist/${metadata.path}/index.html`)
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addFeedArticle(metadata, feed)
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})
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fs.writeFileSync('dist/feed.json', feed.json1())
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console.info(`Wrote dist/feed.json`)
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fs.writeFileSync('dist/atom.xml', feed.atom1())
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console.info(`Wrote dist/atom.xml`)
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fs.writeFileSync('dist/rss.xml', feed.rss2())
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console.info(`Wrote dist/rss.xml`)
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