build-readme.js

const fs = require("fs").promises
const path = require("path")

// eslint-disable-next-line no-unused-vars
const p = (...args) => console.log(...args)

p(1, 2, 3)

/**
 *
 * @param {string} script
 * @returns
 */
const parseMeta = script =>
	script
		.slice(script.indexOf("==UserScript=="), script.indexOf("==/UserScript=="))
		.split("\n")
		.map(line => line.match(/@([a-z]+)\s*([^\n]+)/i))
		.filter(match => match)
		.reduce(
			(meta, [, key, value]) =>
				Object.assign(meta, {
					[key]: value.trim(),
				}),
			{},
		)

const scriptData = (files, folder, file) => ({
	file,
	folder,
	path: path.join(folder, file),
	hasReadme: files.some(file => file.includes("README")),
})

const sourcepath = path.resolve(__dirname, "src")

const getScripts = () =>
	fs
		.readdir(sourcepath)
		.then(filenames => filenames.filter(file => !file.startsWith(".")))
		.then(filenames => filenames.map(file => path.resolve(sourcepath, file)))
		.then(files =>
			Promise.all(
				files.map(maybeDir => {
					return fs.stat(maybeDir).then(handle =>
						handle.isDirectory()
							? fs
								.readdir(maybeDir)
								.then(files => [files, files.find(file => file.endsWith(".user.es6") || file.endsWith(".user.js"))])
								.then(([files, file]) => file && scriptData(files, maybeDir, file))
							: void 0,
					)
				}),
			),
		)
		.then(scripts => scripts.filter(Boolean))
		.then(scripts =>
			Promise.all(
				scripts.map(script =>
					fs.readFile(script.path).then(buf => ({
						...script,
						...parseMeta(buf.toString()),
					})),
				),
			),
		)

const baseUrl = "https://gitee.com/tsharp/userscripts"
const tableHeader = "|Name|Links||\n|-|:-:|:-:|\n"

const formatScriptLine = script => {
	const installLink = `${baseUrl}/raw/master/dist/${path.parse(script.file).name}.js`
	const infoLink = script.hasReadme && `${baseUrl}/tree/master/src/${path.parse(script.folder).name}`
	return `|${script.name}|${infoLink ? `[Info](${infoLink})` : "_no readme_"}|[Install](${installLink})|`
}

const buildReadme = () =>
	getScripts()
		.then(scripts =>
			fs.readFile("README.template.md").then(buf =>
				buf
					.toString()
					.replace(
						"<SCRIPTS>",
						tableHeader +
						scripts
							.filter(script => script.deprecated !== "true")
							.map(formatScriptLine)
							.join("\n"),
					)
					.replace(
						"<UNMAINTAINED>",
						tableHeader +
						scripts
							.filter(script => script.deprecated === "true")
							.map(formatScriptLine)
							.join("\n"),
					),
			),
		)
		.then(readme => fs.writeFile("./README.md", readme))
		.then(res => console.log('done', res))

buildReadme()