build: upgrade to xo 0.58

package.json

@@ -49,7 +49,7 @@
     "sinon": "^17.0.0",
     "strip-ansi": "^7.0.1",
     "typescript": "^5.0.0",
-    "xo": "^0.56.0"
+    "xo": "^0.58.0"
   },
   "engines": {
     "node": ">=18"

src/cli.ts

@@ -166,10 +166,6 @@ async function main() {
 				logger.info(`${state} ${chalk.gray(link.url)}`);
 				break;
 			}
-
-			default: {
-				throw new Error('Unexpected link state.');
-			}
 		}
 
 		if (format === Format.CSV) {
@@ -247,14 +243,12 @@ async function main() {
 	// }
 	// eslint-disable-next-line unicorn/no-array-reduce
 	const parents = result.links.reduce<Record<string, LinkResult[]>>(
-		(acc, curr) => {
-			const parent = curr.parent || '';
-			if (!acc[parent]) {
-				acc[parent] = [];
-			}
+		(accumulator, current) => {
+			const parent = current.parent || '';
+			accumulator[parent] ||= [];
 
-			acc[parent].push(curr);
-			return acc;
+			accumulator[parent].push(current);
+			return accumulator;
 		},
 		{},
 	);
@@ -306,10 +300,6 @@ async function main() {
 					logger.info(`  ${state} ${chalk.gray(link.url)}`);
 					break;
 				}
-
-				default: {
-					throw new Error('Unexpected link state.');
-				}
 			}
 		}
 	}
@@ -398,10 +388,6 @@ function shouldShowResult(link: LinkResult, verbosity: LogLevel) {
 		case LinkState.SKIPPED: {
 			return verbosity <= LogLevel.INFO;
 		}
-
-		default: {
-			throw new Error('Unexpected link state.');
-		}
 	}
 }
 

src/index.ts

@@ -71,7 +71,7 @@ export class LinkChecker extends EventEmitter {
 	on(event: 'link', listener: (result: LinkResult) => void): this;
 	on(event: 'pagestart', listener: (link: string) => void): this;
 	on(event: 'retry', listener: (details: RetryInfo) => void): this;
-	on(event: string | symbol, listener: (...args: any[]) => void): this {
+	on(event: string | symbol, listener: (...arguments_: any[]) => void): this {
 		return super.on(event, listener);
 	}
 
@@ -86,7 +86,7 @@ export class LinkChecker extends EventEmitter {
 			options.path = [options.path];
 		}
 
-		options.linksToSkip = options.linksToSkip || [];
+		options.linksToSkip ||= [];
 		let server: http.Server | undefined;
 		const hasHttpPaths = options.path.find((x) => x.startsWith('http'));
 		if (!hasHttpPaths) {

src/links.ts

@@ -2,7 +2,7 @@ import {type Readable} from 'node:stream';
 import {WritableStream} from 'htmlparser2/lib/WritableStream';
 import {parseSrcset} from 'srcset';
 
-const linksAttr: Record<string, string[]> = {
+const linksAttribute: Record<string, string[]> = {
 	background: ['body'],
 	cite: ['blockquote', 'del', 'ins', 'q'],
 	data: ['object'],
@@ -29,11 +29,11 @@ const linksAttr: Record<string, string[]> = {
 	srcset: ['img', 'source'],
 };
 // Create lookup table for tag name to attribute that contains URL:
-const tagAttr: Record<string, string[]> = {};
-for (const attr of Object.keys(linksAttr)) {
-	for (const tag of linksAttr[attr]) {
-		if (!tagAttr[tag]) tagAttr[tag] = [];
-		tagAttr[tag].push(attr);
+const tagAttribute: Record<string, string[]> = {};
+for (const attribute of Object.keys(linksAttribute)) {
+	for (const tag of linksAttribute[attribute]) {
+		tagAttribute[tag] ||= [];
+		tagAttribute[tag].push(attribute);
 	}
 }
 
@@ -59,6 +59,7 @@ export async function getLinks(
 			}
 
 			// ignore href properties for link tags where rel is likely to fail
+			// eslint-disable-next-line unicorn/prevent-abbreviations
 			const relValuesToIgnore = ['dns-prefetch', 'preconnect'];
 			if (tag === 'link' && relValuesToIgnore.includes(attributes.rel)) {
 				return;
@@ -75,11 +76,11 @@ export async function getLinks(
 				}
 			}
 
-			if (tagAttr[tag]) {
-				for (const attr of tagAttr[tag]) {
-					const linkString = attributes[attr];
+			if (tagAttribute[tag]) {
+				for (const attribute of tagAttribute[tag]) {
+					const linkString = attributes[attribute];
 					if (linkString) {
-						for (const link of parseAttr(attr, linkString)) {
+						for (const link of parseAttribute(attribute, linkString)) {
 							links.push(parseLink(link, realBaseUrl));
 						}
 					}
@@ -114,7 +115,7 @@ function isAbsoluteUrl(url: string): boolean {
 	return /^[a-zA-Z][a-zA-Z\d+\-.]*:/.test(url);
 }
 
-function parseAttr(name: string, value: string): string[] {
+function parseAttribute(name: string, value: string): string[] {
 	switch (name) {
 		case 'srcset': {
 			// The swapping of any multiple spaces into a single space is here to

src/options.ts

@@ -75,9 +75,7 @@ export async function processOptions(
 		);
 	}
 
-	if (options.serverRoot) {
-		options.serverRoot = path.normalize(options.serverRoot);
-	}
+	options.serverRoot &&= path.normalize(options.serverRoot);
 
 	// Expand globs into paths
 	if (!isUrlType) {

src/queue.ts

@@ -33,15 +33,15 @@ export class Queue extends EventEmitter {
 	}
 
 	on(event: 'done', listener: () => void): this;
-	on(event: string | symbol, listener: (...args: any[]) => void): this {
+	on(event: string | symbol, listener: (...arguments_: any[]) => void): this {
 		return super.on(event, listener);
 	}
 
-	add(fn: AsyncFunction, options?: QueueItemOptions) {
+	add(function_: AsyncFunction, options?: QueueItemOptions) {
 		const delay = options?.delay || 0;
 		const timeToRun = Date.now() + delay;
 		this.q.push({
-			fn,
+			fn: function_,
 			timeToRun,
 		});
 		setTimeout(() => {

src/server.ts

@@ -76,12 +76,12 @@ async function handleRequest(
 		const isDirectory = stats.isDirectory();
 		if (isDirectory) {
 			// This means we got a path with no / at the end!
-			const doc = "<html><body>Redirectin'</body></html>";
+			const document = "<html><body>Redirectin'</body></html>";
 			response.statusCode = 301;
 			response.setHeader('Content-Type', 'text/html; charset=UTF-8');
-			response.setHeader('Content-Length', Buffer.byteLength(doc));
+			response.setHeader('Content-Length', Buffer.byteLength(document));
 			response.setHeader('Location', request.url + '/');
-			response.end(doc);
+			response.end(document);
 			return;
 		}
 	} catch (error) {

test/test.cli.ts

@@ -12,10 +12,10 @@ describe('cli', function () {
 	let server: http.Server;
 	this.timeout(20_000);
 
-	const pkg = JSON.parse(
+	const package_ = JSON.parse(
 		fs.readFileSync(new URL('../../package.json', import.meta.url), 'utf8'),
 	) as {bin: {linkinator: string}};
-	const {linkinator} = pkg.bin;
+	const {linkinator} = package_.bin;
 	const node = 'node';
 
 	afterEach(async () => {