webhint.ts
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webhint.ts
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	import _locreq from "locreq";
	import { module_dirname } from "../utils/module_dirname.js";
	const locreq = _locreq(module_dirname(import.meta.url));
	import { spawn } from "child_process";
	import { hasShape, is, predicates } from "@sealcode/ts-predicates";
	import { promises as fs } from "fs";

	export const LONG_TEST_TIMEOUT = 100 * 1000;
	export const VERY_LONG_TEST_TIMEOUT = 75 * 1000;

	export async function webhintURL(url: string, config = locreq.resolve(".hintrc")) {
	// eslint-disable-next-line no-console
	console.log("scanning with webhint....", url);
	try {
	const subprocess = spawn(
	"node",
	[locreq.resolve("webhint/node_modules/.bin/hint"), "--config", config, url],
	{ cwd: locreq.resolve("webhint") } // to prevent webhint from trying to parese source code
	);
	subprocess.stderr.on("data", (b) => console.error(String(b)));
	// eslint-disable-next-line no-console
	subprocess.stdout.on("data", (b) => console.log(String(b)));
	await new Promise<void>((resolve, reject) => {
	subprocess.on("close", (code) =>
	code === 0 ? resolve() : reject(new Error("Webhint tests failed"))
	);
	});
	} catch (e) {
	if (is(e, predicates.object) && hasShape({ stdout: predicates.string }, e)) {
	throw new Error(e.stdout);
	} else {
	throw e;
	}
	}
	}

	export async function webhintHTML(html: string) {
	await fs.writeFile("/tmp/index.html", html);
	await webhintURL("/tmp/index.html", locreq.resolve(".hintrc.local.json"));
	}