chore: bump @typescript-eslint/no-unused-vars to error internally (#11173)

Co-authored-by: Florian Lefebvre <contact@florian-lefebvre.dev>
Co-authored-by: Martin Trapp <94928215+martrapp@users.noreply.github.com>

eslint.config.js

@@ -62,7 +62,7 @@ export default [
 			// These off/configured-differently-by-default rules fit well for us
 			'@typescript-eslint/switch-exhaustiveness-check': 'error',
 			'@typescript-eslint/no-unused-vars': [
-				'warn',
+				'error',
 				{
 					argsIgnorePattern: '^_',
 					varsIgnorePattern: '^_',

packages/astro/e2e/view-transitions.test.js

@@ -169,7 +169,6 @@ test.describe('View Transitions', () => {
 
 	test('Moving from a page without ViewTransitions w/ back button', async ({ page, astro }) => {
 		const loads = collectLoads(page);
-
 		// Go to page 1
 		await page.goto(astro.resolveUrl('/one'));
 		let p = page.locator('#one');
@@ -184,6 +183,10 @@ test.describe('View Transitions', () => {
 		await page.goBack();
 		p = page.locator('#one');
 		await expect(p, 'should have content').toHaveText('Page 1');
+		expect(
+			loads.length,
+			'There should be 3 page loads (for page one & three), and an additional loads for the back navigation'
+		).toEqual(3);
 	});
 
 	test('Stylesheets in the head are waited on', async ({ page, astro }) => {

packages/astro/src/@types/astro.ts

@@ -50,7 +50,7 @@ import type {
 	TransitionBeforePreparationEvent,
 	TransitionBeforeSwapEvent,
 } from '../transitions/events.js';
-import type { DeepPartial, OmitIndexSignature, Simplify, WithRequired } from '../type-utils.js';
+import type { DeepPartial, OmitIndexSignature, Simplify } from '../type-utils.js';
 import type { SUPPORTED_MARKDOWN_FILE_EXTENSIONS } from './../core/constants.js';
 
 export type { AstroIntegrationLogger, ToolbarServerHelpers };

packages/astro/src/actions/runtime/virtual/shared.ts

@@ -43,6 +43,9 @@ const statusToCodeMap: Record<number, ActionErrorCode> = Object.entries(codeToSt
 	{}
 );
 
+// T is used for error inference with SafeInput -> isInputError.
+// See: https://github.com/withastro/astro/pull/11173/files#r1622767246
+// eslint-disable-next-line @typescript-eslint/no-unused-vars
 export class ActionError<T extends ErrorInferenceObject = ErrorInferenceObject> extends Error {
 	type = 'AstroActionError';
 	code: ActionErrorCode = 'INTERNAL_SERVER_ERROR';

packages/astro/src/content/vite-plugin-content-assets.ts

@@ -1,6 +1,6 @@
 import { extname } from 'node:path';
 import { pathToFileURL } from 'node:url';
-import type { Plugin, Rollup } from 'vite';
+import type { Plugin } from 'vite';
 import type { AstroSettings, SSRElement } from '../@types/astro.js';
 import { getAssetsPrefix } from '../assets/utils/getAssetsPrefix.js';
 import type { BuildInternals } from '../core/build/internal.js';
@@ -129,22 +129,9 @@ export function astroConfigBuildPlugin(
 	options: StaticBuildOptions,
 	internals: BuildInternals
 ): AstroBuildPlugin {
-	let ssrPluginContext: Rollup.PluginContext | undefined = undefined;
 	return {
 		targets: ['server'],
 		hooks: {
-			'build:before': ({ target }) => {
-				return {
-					vitePlugin: {
-						name: 'astro:content-build-plugin',
-						generateBundle() {
-							if (target === 'server') {
-								ssrPluginContext = this;
-							}
-						},
-					},
-				};
-			},
 			'build:post': ({ ssrOutputs, clientOutputs, mutate }) => {
 				const outputs = ssrOutputs.flatMap((o) => o.output);
 				const prependBase = (src: string) => {
@@ -232,8 +219,6 @@ export function astroConfigBuildPlugin(
 						mutate(chunk, ['server'], newCode);
 					}
 				}
-
-				ssrPluginContext = undefined;
 			},
 		},
 	};

packages/astro/src/core/build/generate.ts

@@ -199,7 +199,7 @@ async function generatePage(
 	pipeline: BuildPipeline
 ) {
 	// prepare information we need
-	const { config, internals, logger } = pipeline;
+	const { config, logger } = pipeline;
 	const pageModulePromise = ssrEntry.page;
 
 	// Calculate information of the page, like scripts, links and styles

packages/astro/src/core/build/pipeline.ts

@@ -8,7 +8,6 @@ import type {
 import { getOutputDirectory } from '../../prerender/utils.js';
 import { BEFORE_HYDRATION_SCRIPT_ID, PAGE_SCRIPT_ID } from '../../vite-plugin-scripts/index.js';
 import type { SSRManifest } from '../app/types.js';
-import { DEFAULT_404_COMPONENT } from '../constants.js';
 import { routeIsFallback, routeIsRedirect } from '../redirects/helpers.js';
 import { RedirectSinglePageBuiltModule } from '../redirects/index.js';
 import { Pipeline } from '../render/index.js';

packages/astro/src/env/runtime.ts

@@ -4,6 +4,7 @@ import type { ValidationResultInvalid } from './validators.js';
 export { validateEnvVariable, getEnvFieldType } from './validators.js';
 
 export type GetEnv = (key: string) => string | undefined;
+type OnSetGetEnv = (reset: boolean) => void
 
 let _getEnv: GetEnv = (key) => process.env[key];
 
@@ -13,9 +14,9 @@ export function setGetEnv(fn: GetEnv, reset = false) {
 	_onSetGetEnv(reset);
 }
 
-let _onSetGetEnv = (reset: boolean) => {};
+let _onSetGetEnv: OnSetGetEnv = () => {};
 
-export function setOnSetGetEnv(fn: typeof _onSetGetEnv) {
+export function setOnSetGetEnv(fn: OnSetGetEnv) {
 	_onSetGetEnv = fn;
 }
 

packages/astro/src/runtime/client/dev-toolbar/apps/audit/rules/a11y.ts

@@ -126,12 +126,6 @@ const a11y_required_content = [
 
 const a11y_distracting_elements = ['blink', 'marquee'];
 
-// Unused for now
-// eslint-disable-next-line @typescript-eslint/no-unused-vars
-const a11y_nested_implicit_semantics = new Map([
-	['header', 'banner'],
-	['footer', 'contentinfo'],
-]);
 const a11y_implicit_semantics = new Map([
 	['a', 'link'],
 	['area', 'link'],
@@ -624,19 +618,6 @@ export const a11y: AuditRuleWithSelector[] = [
 	},
 ];
 
-// Unused for now
-// eslint-disable-next-line @typescript-eslint/no-unused-vars
-const a11y_labelable = [
-	'button',
-	'input',
-	'keygen',
-	'meter',
-	'output',
-	'progress',
-	'select',
-	'textarea',
-];
-
 /**
  * Exceptions to the rule which follows common A11y conventions
  * TODO make this configurable by the user

packages/astro/src/runtime/server/render/astro/instance.ts

@@ -1,6 +1,6 @@
 import type { SSRResult } from '../../../../@types/astro.js';
 import type { ComponentSlots } from '../slot.js';
-import type { AstroComponentFactory, AstroFactoryReturnValue } from './factory.js';
+import type { AstroComponentFactory } from './factory.js';
 
 import { isPromise } from '../../util.js';
 import { renderChild } from '../any.js';

packages/astro/src/runtime/server/render/page.ts

@@ -1,4 +1,4 @@
-import type { AstroConfig, RouteData, SSRResult } from '../../../@types/astro.js';
+import type { RouteData, SSRResult } from '../../../@types/astro.js';
 import { type NonAstroPageComponent, renderComponentToString } from './component.js';
 import type { AstroComponentFactory } from './index.js';
 

packages/astro/src/transitions/router.ts

@@ -1,13 +1,5 @@
-import type { TransitionBeforePreparationEvent, TransitionBeforeSwapEvent } from './events.js';
+import type { TransitionBeforePreparationEvent } from './events.js';
 import { TRANSITION_AFTER_SWAP, doPreparation, doSwap } from './events.js';
-import {
-	deselectScripts,
-	restoreFocus,
-	saveFocus,
-	swapBodyElement,
-	swapHeadElements,
-	swapRootAttributes,
-} from './swap-functions.js';
 import type { Direction, Fallback, Options } from './types.js';
 
 type State = {

packages/astro/src/vite-plugin-astro-server/error.ts

@@ -3,9 +3,8 @@ import type { ModuleLoader } from '../core/module-loader/index.js';
 import type { DevPipeline } from './pipeline.js';
 
 import { collectErrorMetadata } from '../core/errors/dev/index.js';
-import { AstroErrorData, createSafeError } from '../core/errors/index.js';
+import { createSafeError } from '../core/errors/index.js';
 import { formatErrorMessage } from '../core/messages.js';
-import { eventError, telemetry } from '../events/index.js';
 
 export function recordServerError(
 	loader: ModuleLoader,

packages/astro/src/vite-plugin-astro-server/route.ts

@@ -1,7 +1,6 @@
 import type http from 'node:http';
 import type { ComponentInstance, ManifestData, RouteData } from '../@types/astro.js';
 import {
-	DEFAULT_404_COMPONENT,
 	REROUTE_DIRECTIVE_HEADER,
 	REWRITE_DIRECTIVE_HEADER_KEY,
 	clientLocalsSymbol,

packages/astro/templates/env/module.mjs

@@ -25,6 +25,8 @@ const _internalGetSecret = (key) => {
 	throw createInvalidVariablesError(key, type, result);
 };
 
+// used while generating the virtual module
+// eslint-disable-next-line @typescript-eslint/no-unused-vars
 setOnSetGetEnv((reset) => {
 	// @@ON_SET_GET_ENV@@
 });

packages/astro/test/reuse-injected-entrypoint.test.js

@@ -106,8 +106,6 @@ describe('Reuse injected entrypoint', () => {
 		});
 
 		routes.forEach(({ description, url, fourOhFour, h1, p, htmlMatch }) => {
-			const isEndpoint = htmlMatch && !h1 && !p;
-
 			// checks URLs as written above
 			it(description, async () => {
 				const html = await fixture.fetch(url).then((res) => res.text());

packages/integrations/sitemap/src/utils/is-valid-url.ts

@@ -4,8 +4,7 @@ export const isValidUrl = (s: any) => {
 		return false;
 	}
 	try {
-		// eslint-disable-next-line @typescript-eslint/no-unused-vars
+		new URL(s);
-		const dummy = new URL(s);
 		return true;
 	} catch {
 		return false;