chore: better Prettier config for easier reviews

.github/ISSUE_TEMPLATE/BUG.md

@@ -1,8 +1,8 @@
 ---
-name: '🐛 Bug Report'
-about: 'Report an unexpected problem or unintended behavior.'
-title: '[Bug]'
-labels: 'bug'
+name: "🐛 Bug Report"
+about: "Report an unexpected problem or unintended behavior."
+title: "[Bug]"
+labels: "bug"
 ---
 
 <!--

.github/ISSUE_TEMPLATE/DOCUMENTATION.md

@@ -1,8 +1,8 @@
 ---
-name: '📜 Documentation'
-about: 'Correct spelling errors, improvements or additions to documentation files (README, CONTRIBUTING...).'
-title: '[Documentation]'
-labels: 'documentation'
+name: "📜 Documentation"
+about: "Correct spelling errors, improvements or additions to documentation files (README, CONTRIBUTING...)."
+title: "[Documentation]"
+labels: "documentation"
 ---
 
 <!-- Please make sure your issue has not already been fixed. -->

.github/ISSUE_TEMPLATE/FEATURE_REQUEST.md

@@ -1,8 +1,8 @@
 ---
-name: '✨ Feature Request'
-about: 'Suggest a new feature idea.'
-title: '[Feature]'
-labels: 'feature request'
+name: "✨ Feature Request"
+about: "Suggest a new feature idea."
+title: "[Feature]"
+labels: "feature request"
 ---
 
 <!-- Please make sure your issue has not already been fixed. -->

.github/ISSUE_TEMPLATE/IMPROVEMENT.md

@@ -1,8 +1,8 @@
 ---
-name: '🔧 Improvement'
-about: 'Improve structure/format/performance/refactor/tests of the code.'
-title: '[Improvement]'
-labels: 'improvement'
+name: "🔧 Improvement"
+about: "Improve structure/format/performance/refactor/tests of the code."
+title: "[Improvement]"
+labels: "improvement"
 ---
 
 <!-- Please make sure your issue has not already been fixed. -->

.github/ISSUE_TEMPLATE/QUESTION.md

@@ -1,8 +1,8 @@
 ---
-name: '🙋 Question'
-about: 'Further information is requested.'
-title: '[Question]'
-labels: 'question'
+name: "🙋 Question"
+about: "Further information is requested."
+title: "[Question]"
+labels: "question"
 ---
 
 ### Question

.github/workflows/build.yml

@@ -1,4 +1,4 @@
-name: 'Build'
+name: "Build"
 
 on:
   push:
@@ -8,20 +8,20 @@ on:
 
 jobs:
   build:
-    runs-on: 'ubuntu-latest'
+    runs-on: "ubuntu-latest"
     steps:
-      - uses: 'actions/checkout@v3.5.3'
+      - uses: "actions/checkout@v3.5.3"
 
-      - name: 'Setup Node.js'
-        uses: 'actions/setup-node@v3.6.0'
+      - name: "Setup Node.js"
+        uses: "actions/setup-node@v3.6.0"
         with:
-          node-version: 'lts/*'
-          cache: 'npm'
+          node-version: "lts/*"
+          cache: "npm"
 
-      - name: 'Install dependencies'
-        run: 'npm clean-install'
+      - name: "Install dependencies"
+        run: "npm clean-install"
 
-      - name: 'Build'
-        run: 'npm run build'
+      - name: "Build"
+        run: "npm run build"
 
-      - run: 'npm run build:typescript'
+      - run: "npm run build:typescript"

.github/workflows/lint.yml

@@ -1,4 +1,4 @@
-name: 'Lint'
+name: "Lint"
 
 on:
   push:
@@ -8,21 +8,21 @@ on:
 
 jobs:
   lint:
-    runs-on: 'ubuntu-latest'
+    runs-on: "ubuntu-latest"
     steps:
-      - uses: 'actions/checkout@v3.5.3'
+      - uses: "actions/checkout@v3.5.3"
 
-      - name: 'Setup Node.js'
-        uses: 'actions/setup-node@v3.6.0'
+      - name: "Setup Node.js"
+        uses: "actions/setup-node@v3.6.0"
         with:
-          node-version: 'lts/*'
-          cache: 'npm'
+          node-version: "lts/*"
+          cache: "npm"
 
-      - name: 'Install dependencies'
-        run: 'npm clean-install'
+      - name: "Install dependencies"
+        run: "npm clean-install"
 
       - run: 'npm run lint:commit -- --to "${{ github.sha }}"'
-      - run: 'npm run lint:editorconfig'
-      - run: 'npm run lint:markdown'
-      - run: 'npm run lint:eslint'
-      - run: 'npm run lint:prettier'
+      - run: "npm run lint:editorconfig"
+      - run: "npm run lint:markdown"
+      - run: "npm run lint:eslint"
+      - run: "npm run lint:prettier"

.github/workflows/release.yml

@@ -1,4 +1,4 @@
-name: 'Release'
+name: "Release"
 
 on:
   push:
@@ -6,37 +6,37 @@ on:
 
 jobs:
   release:
-    runs-on: 'ubuntu-latest'
+    runs-on: "ubuntu-latest"
     permissions:
-      contents: 'write'
-      issues: 'write'
-      pull-requests: 'write'
-      id-token: 'write'
+      contents: "write"
+      issues: "write"
+      pull-requests: "write"
+      id-token: "write"
     steps:
-      - uses: 'actions/checkout@v3.5.3'
+      - uses: "actions/checkout@v3.5.3"
         with:
           fetch-depth: 0
           persist-credentials: false
 
-      - name: 'Setup Node.js'
-        uses: 'actions/setup-node@v3.6.0'
+      - name: "Setup Node.js"
+        uses: "actions/setup-node@v3.6.0"
         with:
-          node-version: 'lts/*'
-          cache: 'npm'
+          node-version: "lts/*"
+          cache: "npm"
 
-      - name: 'Install dependencies'
-        run: 'npm clean-install'
+      - name: "Install dependencies"
+        run: "npm clean-install"
 
-      - name: 'Build'
-        run: 'npm run build'
+      - name: "Build"
+        run: "npm run build"
 
-      - run: 'npm run build:typescript'
+      - run: "npm run build:typescript"
 
-      - name: 'Verify the integrity of provenance attestations and registry signatures for installed dependencies'
-        run: 'npm audit signatures'
+      - name: "Verify the integrity of provenance attestations and registry signatures for installed dependencies"
+        run: "npm audit signatures"
 
-      - name: 'Release'
-        run: 'npm run release'
+      - name: "Release"
+        run: "npm run release"
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           NPM_TOKEN: ${{ secrets.NPM_TOKEN }}

.github/workflows/test.yml

@@ -1,4 +1,4 @@
-name: 'Test'
+name: "Test"
 
 on:
   push:
@@ -8,21 +8,21 @@ on:
 
 jobs:
   test:
-    runs-on: 'ubuntu-latest'
+    runs-on: "ubuntu-latest"
     steps:
-      - uses: 'actions/checkout@v3.5.3'
+      - uses: "actions/checkout@v3.5.3"
 
-      - name: 'Setup Node.js'
-        uses: 'actions/setup-node@v3.6.0'
+      - name: "Setup Node.js"
+        uses: "actions/setup-node@v3.6.0"
         with:
-          node-version: 'lts/*'
-          cache: 'npm'
+          node-version: "lts/*"
+          cache: "npm"
 
-      - name: 'Install dependencies'
-        run: 'npm clean-install'
+      - name: "Install dependencies"
+        run: "npm clean-install"
 
-      - name: 'Build'
-        run: 'npm run build'
+      - name: "Build"
+        run: "npm run build"
 
-      - name: 'Test'
-        run: 'npm run test'
+      - name: "Test"
+        run: "npm run test"

.prettierrc.json

@@ -1,6 +1,3 @@
 {
-  "singleQuote": true,
-  "jsxSingleQuote": true,
-  "semi": false,
-  "trailingComma": "none"
+  "semi": false
 }

example/package.json

@@ -6,8 +6,8 @@
     "test:html-w3c-validator": "start-server-and-test \"start\" \"http://127.0.0.1:3000\" \"html-w3c-validator\""
   },
   "devDependencies": {
-    "serve": "14.2.0",
-    "start-server-and-test": "2.0.0",
+    "serve": "14.2.1",
+    "start-server-and-test": "2.0.1",
     "html-w3c-validator": "file:.."
   }
 }

package.json

@@ -52,41 +52,41 @@
     "chalk": "5.3.0",
     "clipanion": "3.2.1",
     "html-validator": "6.0.1",
-    "log-symbols": "5.1.0",
+    "log-symbols": "6.0.0",
     "ora": "7.0.1",
-    "read-pkg": "8.0.0",
+    "read-pkg": "8.1.0",
     "table": "6.8.1"
   },
   "devDependencies": {
-    "@commitlint/cli": "17.7.0",
-    "@commitlint/config-conventional": "17.7.0",
+    "@commitlint/cli": "18.0.0",
+    "@commitlint/config-conventional": "18.0.0",
     "@swc/cli": "0.1.62",
-    "@swc/core": "1.3.75",
-    "@tsconfig/strictest": "2.0.1",
-    "@types/html-validator": "5.0.3",
-    "@types/mock-fs": "4.13.1",
-    "@types/node": "20.4.9",
-    "@types/sinon": "10.0.16",
-    "@typescript-eslint/eslint-plugin": "6.3.0",
-    "@typescript-eslint/parser": "6.3.0",
+    "@swc/core": "1.3.94",
+    "@tsconfig/strictest": "2.0.2",
+    "@types/html-validator": "5.0.5",
+    "@types/mock-fs": "4.13.3",
+    "@types/node": "20.8.7",
+    "@types/sinon": "10.0.20",
+    "@typescript-eslint/eslint-plugin": "6.9.0",
+    "@typescript-eslint/parser": "6.9.0",
     "editorconfig-checker": "5.1.1",
-    "eslint": "8.46.0",
-    "eslint-config-conventions": "11.0.1",
+    "eslint": "8.52.0",
+    "eslint-config-conventions": "12.0.0",
     "eslint-config-prettier": "9.0.0",
-    "eslint-plugin-import": "2.28.0",
-    "eslint-plugin-prettier": "5.0.0",
+    "eslint-plugin-import": "2.29.0",
+    "eslint-plugin-prettier": "5.0.1",
     "eslint-plugin-promise": "6.1.1",
     "eslint-plugin-unicorn": "48.0.1",
-    "execa": "7.2.0",
-    "lint-staged": "13.2.3",
-    "markdownlint-cli2": "0.8.1",
+    "execa": "8.0.1",
+    "lint-staged": "15.0.2",
+    "markdownlint-cli2": "0.10.0",
     "markdownlint-rule-relative-links": "2.1.0",
     "mock-fs": "5.2.0",
-    "prettier": "3.0.1",
-    "rimraf": "5.0.1",
-    "semantic-release": "21.0.7",
-    "serve": "14.2.0",
-    "sinon": "15.2.0",
-    "typescript": "5.1.6"
+    "prettier": "3.0.3",
+    "rimraf": "5.0.5",
+    "semantic-release": "22.0.5",
+    "serve": "14.2.1",
+    "sinon": "17.0.0",
+    "typescript": "5.2.2"
   }
 }

src/HTMLValidatorCommand.ts

@@ -1,23 +1,23 @@
-import path from 'node:path'
-import fs from 'node:fs'
+import path from "node:path"
+import fs from "node:fs"
 
-import { Command, Option } from 'clipanion'
-import * as typanion from 'typanion'
-import chalk from 'chalk'
-import ora from 'ora'
-import logSymbols from 'log-symbols'
+import { Command, Option } from "clipanion"
+import * as typanion from "typanion"
+import chalk from "chalk"
+import ora from "ora"
+import logSymbols from "log-symbols"
 import type {
   ValidationMessageLocationObject,
-  ParsedJsonAsValidationResults
-} from 'html-validator'
-import validateHTML from 'html-validator'
-import { table } from 'table'
+  ParsedJsonAsValidationResults,
+} from "html-validator"
+import validateHTML from "html-validator"
+import { table } from "table"
 
-import { isExistingPath } from './utils/isExistingPath.js'
+import { isExistingPath } from "./utils/isExistingPath.js"
 
-export const CONFIG_FILE_NAME = '.html-w3c-validatorrc.json'
+export const CONFIG_FILE_NAME = ".html-w3c-validatorrc.json"
 
-export const SEVERITIES = ['error', 'warning', 'info'] as const
+export const SEVERITIES = ["error", "warning", "info"] as const
 
 export type Severity = (typeof SEVERITIES)[number]
 
@@ -50,16 +50,16 @@ const printResults = (results: Result[]): void => {
 export class HTMLValidatorCommand extends Command {
   static override usage = {
     description:
-      'CLI for validating multiple html pages using <https://validator.w3.org/>.'
+      "CLI for validating multiple html pages using <https://validator.w3.org/>.",
   }
 
   public currentWorkingDirectory = Option.String(
-    '--current-working-directory',
+    "--current-working-directory",
     process.cwd(),
     {
-      description: 'The current working directory.',
-      validator: typanion.isString()
-    }
+      description: "The current working directory.",
+      validator: typanion.isString(),
+    },
   )
 
   public async execute(): Promise<number> {
@@ -67,11 +67,11 @@ export class HTMLValidatorCommand extends Command {
     try {
       if (!(await isExistingPath(configPath))) {
         throw new Error(
-          `No config file found at ${configPath}. Please create "${CONFIG_FILE_NAME}".`
+          `No config file found at ${configPath}. Please create "${CONFIG_FILE_NAME}".`,
         )
       }
       const configData = await fs.promises.readFile(configPath, {
-        encoding: 'utf-8'
+        encoding: "utf-8",
       })
       let config: Config = { urls: [], files: [] }
       let isValidConfig = true
@@ -82,52 +82,52 @@ export class HTMLValidatorCommand extends Command {
       }
       if (!isValidConfig) {
         throw new Error(
-          `Invalid config file at "${configPath}". Please check the JSON syntax.`
+          `Invalid config file at "${configPath}". Please check the JSON syntax.`,
         )
       }
       if (config.urls != null && !Array.isArray(config.urls)) {
         throw new Error(
-          `Invalid config file at "${configPath}". Please include an array of URLs.`
+          `Invalid config file at "${configPath}". Please include an array of URLs.`,
         )
       }
       if (config.files != null && !Array.isArray(config.files)) {
         throw new Error(
-          `Invalid config file at "${configPath}". Please include an array of files.`
+          `Invalid config file at "${configPath}". Please include an array of files.`,
         )
       }
       const urls =
         config.urls == null
           ? []
           : config.urls.map((url) => {
-              return { type: 'url', data: url }
+              return { type: "url", data: url }
             })
       const files =
         config.files == null
           ? []
           : config.files.map((file) => {
-              return { type: 'file', data: file }
+              return { type: "file", data: file }
             })
       const dataToValidate = [...urls, ...files]
       if (dataToValidate.length === 0) {
         throw new Error(
-          `Invalid config file at "${configPath}". Please add URLs or files.`
+          `Invalid config file at "${configPath}". Please add URLs or files.`,
         )
       }
-      const severities: Severity[] = config.severities ?? ['warning', 'error']
+      const severities: Severity[] = config.severities ?? ["warning", "error"]
       for (const severity of severities) {
         if (!SEVERITIES.includes(severity)) {
           throw new Error(
             `Invalid config file at "${configPath}". Please add valid severities (${SEVERITIES.join(
-              ', '
-            )}).`
+              ", ",
+            )}).`,
           )
         }
       }
       if (severities.length === 0) {
         throw new Error(
           `Invalid config file at "${configPath}". Please add valid severities (${SEVERITIES.join(
-            ', '
-          )}).`
+            ", ",
+          )}).`,
         )
       }
       const errors: Error[] = []
@@ -138,31 +138,31 @@ export class HTMLValidatorCommand extends Command {
         dataToValidate.map(async ({ data, type }) => {
           try {
             const options = {
-              format: 'json' as 'json' | undefined
+              format: "json" as "json" | undefined,
             }
             let result: ParsedJsonAsValidationResults | undefined
-            if (type === 'url') {
+            if (type === "url") {
               result = await validateHTML({
                 url: data,
                 isLocal: true,
-                ...options
+                ...options,
               })
-            } else if (type === 'file') {
+            } else if (type === "file") {
               const htmlPath = path.resolve(this.currentWorkingDirectory, data)
               if (!(await isExistingPath(htmlPath))) {
                 throw new Error(
-                  `No file found at "${htmlPath}". Please check the path.`
+                  `No file found at "${htmlPath}". Please check the path.`,
                 )
               }
               const html = await fs.promises.readFile(htmlPath, {
-                encoding: 'utf-8'
+                encoding: "utf-8",
               })
               result = await validateHTML({
                 data: html,
-                ...options
+                ...options,
               })
             } else {
-              throw new Error('Invalid type')
+              throw new Error("Invalid type")
             }
             const hasErrors = result.messages.some((message) => {
               return (
@@ -184,8 +184,8 @@ export class HTMLValidatorCommand extends Command {
                 }
 
                 const row: string[] = []
-                if (message.type === 'info') {
-                  if (message.subType === 'warning') {
+                if (message.type === "info") {
+                  if (message.subType === "warning") {
                     row.push(chalk.yellow(message.subType))
                   } else {
                     row.push(chalk.blue(message.type))
@@ -197,7 +197,7 @@ export class HTMLValidatorCommand extends Command {
                 const violation = message as ValidationMessageLocationObject
                 if (violation.extract != null) {
                   row.push(
-                    `line: ${violation.lastLine}, column: ${violation.firstColumn}-${violation.lastColumn}`
+                    `line: ${violation.lastLine}, column: ${violation.firstColumn}-${violation.lastColumn}`,
                   )
                 }
                 messagesTable.push(row)
@@ -212,7 +212,7 @@ export class HTMLValidatorCommand extends Command {
               errors.push({ data, messagesTable })
             }
           }
-        })
+        }),
       )
       if (!isValid) {
         loader.fail()
@@ -220,22 +220,22 @@ export class HTMLValidatorCommand extends Command {
         for (const error of errors) {
           console.error(`\n${error.data}`)
           console.error(table(error.messagesTable))
-          console.error('------------------------------')
+          console.error("------------------------------")
         }
         console.error()
-        throw new Error('HTML validation (W3C) failed!')
+        throw new Error("HTML validation (W3C) failed!")
       }
       loader.succeed(
-        `${chalk.bold.green('Success:')} HTML validation (W3C) passed! 🎉`
+        `${chalk.bold.green("Success:")} HTML validation (W3C) passed! 🎉`,
       )
       printResults(results)
       return 0
     } catch (error) {
       if (error instanceof Error) {
-        console.error(`${chalk.bold.red('Error:')} ${error.message}`)
+        console.error(`${chalk.bold.red("Error:")} ${error.message}`)
       } else {
         console.error(
-          `${chalk.bold.red('Error:')} HTML validation (W3C) failed!`
+          `${chalk.bold.red("Error:")} HTML validation (W3C) failed!`,
         )
       }
       return 1

src/__test__/HTMLValidatorCommand.test.ts

@@ -1,416 +1,416 @@
-import test from 'node:test'
-import assert from 'node:assert/strict'
-import path from 'node:path'
-import { PassThrough } from 'node:stream'
+import test from "node:test"
+import assert from "node:assert/strict"
+import path from "node:path"
+import { PassThrough } from "node:stream"
 
-import sinon from 'sinon'
-import { execa } from 'execa'
-import { table } from 'table'
-import chalk from 'chalk'
-import logSymbols from 'log-symbols'
+import sinon from "sinon"
+import { execa } from "execa"
+import { table } from "table"
+import chalk from "chalk"
+import logSymbols from "log-symbols"
 
-import { cli } from '../cli.js'
+import { cli } from "../cli.js"
 import {
   HTMLValidatorCommand,
   CONFIG_FILE_NAME,
-  SEVERITIES
-} from '../HTMLValidatorCommand.js'
+  SEVERITIES,
+} from "../HTMLValidatorCommand.js"
 
-const FIXTURES_PATH = path.join(process.cwd(), 'src', '__test__', 'fixtures')
+const FIXTURES_PATH = path.join(process.cwd(), "src", "__test__", "fixtures")
 
-await test('html-w3c-validator', async (t) => {
+await test("html-w3c-validator", async (t) => {
   t.afterEach(() => {
     sinon.restore()
   })
 
-  await t.test('should be instance of the command', async () => {
+  await t.test("should be instance of the command", async () => {
     const command = cli.process([])
     assert(command instanceof HTMLValidatorCommand)
   })
 
   await t.test(
-    'succeeds and validate the html correctly (example)',
+    "succeeds and validate the html correctly (example)",
     async () => {
-      const exampleURL = new URL('../../example', import.meta.url)
+      const exampleURL = new URL("../../example", import.meta.url)
       process.chdir(exampleURL.pathname)
-      await execa('rimraf', ['node_modules'])
-      await execa('npm', ['install'])
-      const { exitCode } = await execa('npm', [
-        'run',
-        'test:html-w3c-validator'
+      await execa("rimraf", ["node_modules"])
+      await execa("npm", ["install"])
+      const { exitCode } = await execa("npm", [
+        "run",
+        "test:html-w3c-validator",
       ])
       assert.strictEqual(exitCode, 0)
-    }
+    },
   )
 
   await t.test(
-    'succeeds and validate the html correctly (example without working directory)',
+    "succeeds and validate the html correctly (example without working directory)",
     async () => {
       const logs: string[] = []
-      sinon.stub(console, 'log').value((log: string) => {
+      sinon.stub(console, "log").value((log: string) => {
         logs.push(log)
       })
-      const consoleLogSpy = sinon.spy(console, 'log')
+      const consoleLogSpy = sinon.spy(console, "log")
       const stream = new PassThrough()
       const exitCode = await cli.run([], {
         stdin: process.stdin,
         stdout: stream,
-        stderr: stream
+        stderr: stream,
       })
       stream.end()
       assert.strictEqual(exitCode, 0)
       assert.strictEqual(
         consoleLogSpy.calledWith(
           logSymbols.success,
-          './example/build/index.html'
+          "./example/build/index.html",
         ),
         true,
-        logs.join('\n')
+        logs.join("\n"),
       )
       assert.strictEqual(
         consoleLogSpy.calledWith(
           logSymbols.success,
-          './example/build/about.html'
+          "./example/build/about.html",
         ),
         true,
-        logs.join('\n')
+        logs.join("\n"),
       )
-    }
+    },
   )
 
   await t.test(
-    'succeeds and validate the html correctly (fixture)',
+    "succeeds and validate the html correctly (fixture)",
     async () => {
-      const workingDirectory = path.join(FIXTURES_PATH, 'success')
+      const workingDirectory = path.join(FIXTURES_PATH, "success")
       const logs: string[] = []
-      sinon.stub(console, 'log').value((log: string) => {
+      sinon.stub(console, "log").value((log: string) => {
         logs.push(log)
       })
-      const consoleLogSpy = sinon.spy(console, 'log')
+      const consoleLogSpy = sinon.spy(console, "log")
       const stream = new PassThrough()
       const exitCode = await cli.run(
         [`--current-working-directory=${workingDirectory}`],
         {
           stdin: process.stdin,
           stdout: stream,
-          stderr: stream
-        }
+          stderr: stream,
+        },
       )
       stream.end()
       assert.strictEqual(exitCode, 0)
       assert.strictEqual(
-        consoleLogSpy.calledWith(logSymbols.success, './build/index.html'),
+        consoleLogSpy.calledWith(logSymbols.success, "./build/index.html"),
         true,
-        logs.join('\n')
+        logs.join("\n"),
       )
       assert.strictEqual(
-        consoleLogSpy.calledWith(logSymbols.success, './build/about.html'),
+        consoleLogSpy.calledWith(logSymbols.success, "./build/about.html"),
         true,
-        logs.join('\n')
+        logs.join("\n"),
       )
-    }
+    },
   )
 
-  await t.test('fails with not found config', async () => {
-    const workingDirectory = path.join(FIXTURES_PATH, 'error-config-not-found')
+  await t.test("fails with not found config", async () => {
+    const workingDirectory = path.join(FIXTURES_PATH, "error-config-not-found")
     const configPath = path.join(workingDirectory, CONFIG_FILE_NAME)
     const errors: string[] = []
-    sinon.stub(console, 'error').value((error: string) => {
+    sinon.stub(console, "error").value((error: string) => {
       errors.push(error)
     })
-    const consoleErrorSpy = sinon.spy(console, 'error')
+    const consoleErrorSpy = sinon.spy(console, "error")
     const stream = new PassThrough()
     const exitCode = await cli.run(
       [`--current-working-directory=${workingDirectory}`],
       {
         stdin: process.stdin,
         stdout: stream,
-        stderr: stream
-      }
+        stderr: stream,
+      },
     )
     stream.end()
     assert.strictEqual(exitCode, 1)
     assert.strictEqual(
       consoleErrorSpy.calledWith(
-        chalk.bold.red('Error:') +
-          ` No config file found at ${configPath}. Please create "${CONFIG_FILE_NAME}".`
+        chalk.bold.red("Error:") +
+          ` No config file found at ${configPath}. Please create "${CONFIG_FILE_NAME}".`,
       ),
       true,
-      errors.join('\n')
+      errors.join("\n"),
     )
   })
 
-  await t.test('fails with invalid JSON config', async () => {
+  await t.test("fails with invalid JSON config", async () => {
     const workingDirectory = path.join(
       FIXTURES_PATH,
-      'error-config-invalid-json'
+      "error-config-invalid-json",
     )
     const configPath = path.join(workingDirectory, CONFIG_FILE_NAME)
     const errors: string[] = []
-    sinon.stub(console, 'error').value((error: string) => {
+    sinon.stub(console, "error").value((error: string) => {
       errors.push(error)
     })
-    const consoleErrorSpy = sinon.spy(console, 'error')
+    const consoleErrorSpy = sinon.spy(console, "error")
     const stream = new PassThrough()
     const exitCode = await cli.run(
       [`--current-working-directory=${workingDirectory}`],
       {
         stdin: process.stdin,
         stdout: stream,
-        stderr: stream
-      }
+        stderr: stream,
+      },
     )
     stream.end()
     assert.strictEqual(exitCode, 1)
     assert.strictEqual(
       consoleErrorSpy.calledWith(
-        chalk.bold.red('Error:') +
-          ` Invalid config file at "${configPath}". Please check the JSON syntax.`
+        chalk.bold.red("Error:") +
+          ` Invalid config file at "${configPath}". Please check the JSON syntax.`,
       ),
       true,
-      errors.join('\n')
+      errors.join("\n"),
     )
   })
 
-  await t.test('fails with invalid URLs config', async () => {
+  await t.test("fails with invalid URLs config", async () => {
     const workingDirectory = path.join(
       FIXTURES_PATH,
-      'error-config-invalid-urls'
+      "error-config-invalid-urls",
     )
     const configPath = path.join(workingDirectory, CONFIG_FILE_NAME)
     const errors: string[] = []
-    sinon.stub(console, 'error').value((error: string) => {
+    sinon.stub(console, "error").value((error: string) => {
       errors.push(error)
     })
-    const consoleErrorSpy = sinon.spy(console, 'error')
+    const consoleErrorSpy = sinon.spy(console, "error")
     const stream = new PassThrough()
     const exitCode = await cli.run(
       [`--current-working-directory=${workingDirectory}`],
       {
         stdin: process.stdin,
         stdout: stream,
-        stderr: stream
-      }
+        stderr: stream,
+      },
     )
     stream.end()
     assert.strictEqual(exitCode, 1)
     assert.strictEqual(
       consoleErrorSpy.calledWith(
-        chalk.bold.red('Error:') +
-          ` Invalid config file at "${configPath}". Please include an array of URLs.`
+        chalk.bold.red("Error:") +
+          ` Invalid config file at "${configPath}". Please include an array of URLs.`,
       ),
       true,
-      errors.join('\n')
+      errors.join("\n"),
     )
   })
 
-  await t.test('fails with invalid files config', async () => {
+  await t.test("fails with invalid files config", async () => {
     const workingDirectory = path.join(
       FIXTURES_PATH,
-      'error-config-invalid-files'
+      "error-config-invalid-files",
     )
     const configPath = path.join(workingDirectory, CONFIG_FILE_NAME)
     const errors: string[] = []
-    sinon.stub(console, 'error').value((error: string) => {
+    sinon.stub(console, "error").value((error: string) => {
       errors.push(error)
     })
-    const consoleErrorSpy = sinon.spy(console, 'error')
+    const consoleErrorSpy = sinon.spy(console, "error")
     const stream = new PassThrough()
     const exitCode = await cli.run(
       [`--current-working-directory=${workingDirectory}`],
       {
         stdin: process.stdin,
         stdout: stream,
-        stderr: stream
-      }
+        stderr: stream,
+      },
     )
     stream.end()
     assert.strictEqual(exitCode, 1)
     assert.strictEqual(
       consoleErrorSpy.calledWith(
-        chalk.bold.red('Error:') +
-          ` Invalid config file at "${configPath}". Please include an array of files.`
+        chalk.bold.red("Error:") +
+          ` Invalid config file at "${configPath}". Please include an array of files.`,
       ),
       true,
-      errors.join('\n')
+      errors.join("\n"),
     )
   })
 
-  await t.test('fails with invalid files and urls config', async () => {
+  await t.test("fails with invalid files and urls config", async () => {
     const workingDirectory = path.join(
       FIXTURES_PATH,
-      'error-config-invalid-files-and-urls'
+      "error-config-invalid-files-and-urls",
     )
     const configPath = path.join(workingDirectory, CONFIG_FILE_NAME)
     const errors: string[] = []
-    sinon.stub(console, 'error').value((error: string) => {
+    sinon.stub(console, "error").value((error: string) => {
       errors.push(error)
     })
-    const consoleErrorSpy = sinon.spy(console, 'error')
+    const consoleErrorSpy = sinon.spy(console, "error")
     const stream = new PassThrough()
     const exitCode = await cli.run(
       [`--current-working-directory=${workingDirectory}`],
       {
         stdin: process.stdin,
         stdout: stream,
-        stderr: stream
-      }
+        stderr: stream,
+      },
     )
     stream.end()
     assert.strictEqual(exitCode, 1)
     assert.strictEqual(
       consoleErrorSpy.calledWith(
-        chalk.bold.red('Error:') +
-          ` Invalid config file at "${configPath}". Please add URLs or files.`
+        chalk.bold.red("Error:") +
+          ` Invalid config file at "${configPath}". Please add URLs or files.`,
       ),
       true,
-      errors.join('\n')
+      errors.join("\n"),
     )
   })
 
-  await t.test('fails with invalid severities config', async () => {
+  await t.test("fails with invalid severities config", async () => {
     const workingDirectory = path.join(
       FIXTURES_PATH,
-      'error-config-invalid-severities'
+      "error-config-invalid-severities",
     )
     const configPath = path.join(workingDirectory, CONFIG_FILE_NAME)
     const errors: string[] = []
-    sinon.stub(console, 'error').value((error: string) => {
+    sinon.stub(console, "error").value((error: string) => {
       errors.push(error)
     })
-    const consoleErrorSpy = sinon.spy(console, 'error')
+    const consoleErrorSpy = sinon.spy(console, "error")
     const stream = new PassThrough()
     const exitCode = await cli.run(
       [`--current-working-directory=${workingDirectory}`],
       {
         stdin: process.stdin,
         stdout: stream,
-        stderr: stream
-      }
+        stderr: stream,
+      },
     )
     stream.end()
     assert.strictEqual(exitCode, 1)
     assert.strictEqual(
       consoleErrorSpy.calledWith(
-        chalk.bold.red('Error:') +
+        chalk.bold.red("Error:") +
           ` Invalid config file at "${configPath}". Please add valid severities (${SEVERITIES.join(
-            ', '
-          )}).`
+            ", ",
+          )}).`,
       ),
       true,
-      errors.join('\n')
+      errors.join("\n"),
     )
   })
 
-  await t.test('fails with invalid empty severities config', async () => {
+  await t.test("fails with invalid empty severities config", async () => {
     const workingDirectory = path.join(
       FIXTURES_PATH,
-      'error-config-invalid-severities-empty'
+      "error-config-invalid-severities-empty",
     )
     const configPath = path.join(workingDirectory, CONFIG_FILE_NAME)
     const errors: string[] = []
-    sinon.stub(console, 'error').value((error: string) => {
+    sinon.stub(console, "error").value((error: string) => {
       errors.push(error)
     })
-    const consoleErrorSpy = sinon.spy(console, 'error')
+    const consoleErrorSpy = sinon.spy(console, "error")
     const stream = new PassThrough()
     const exitCode = await cli.run(
       [`--current-working-directory=${workingDirectory}`],
       {
         stdin: process.stdin,
         stdout: stream,
-        stderr: stream
-      }
+        stderr: stream,
+      },
     )
     stream.end()
     assert.strictEqual(exitCode, 1)
     assert.strictEqual(
       consoleErrorSpy.calledWith(
-        chalk.bold.red('Error:') +
+        chalk.bold.red("Error:") +
           ` Invalid config file at "${configPath}". Please add valid severities (${SEVERITIES.join(
-            ', '
-          )}).`
+            ", ",
+          )}).`,
       ),
       true,
-      errors.join('\n')
+      errors.join("\n"),
     )
   })
 
-  await t.test('fails with invalid files paths to check', async () => {
+  await t.test("fails with invalid files paths to check", async () => {
     const workingDirectory = path.join(
       FIXTURES_PATH,
-      'error-invalid-files-paths-to-check'
+      "error-invalid-files-paths-to-check",
     )
-    const htmlPath = path.resolve(workingDirectory, 'index.html')
+    const htmlPath = path.resolve(workingDirectory, "index.html")
     const errors: string[] = []
-    sinon.stub(console, 'error').value((error: string) => {
+    sinon.stub(console, "error").value((error: string) => {
       errors.push(error)
     })
-    const consoleErrorSpy = sinon.spy(console, 'error')
+    const consoleErrorSpy = sinon.spy(console, "error")
     const stream = new PassThrough()
     const exitCode = await cli.run(
       [`--current-working-directory=${workingDirectory}`],
       {
         stdin: process.stdin,
         stdout: stream,
-        stderr: stream
-      }
+        stderr: stream,
+      },
     )
     stream.end()
     assert.strictEqual(exitCode, 1)
     const messagesTable = [
-      [`No file found at "${htmlPath}". Please check the path.`]
+      [`No file found at "${htmlPath}". Please check the path.`],
     ]
     assert.strictEqual(
       consoleErrorSpy.calledWith(
-        chalk.bold.red('Error:') + ' HTML validation (W3C) failed!'
+        chalk.bold.red("Error:") + " HTML validation (W3C) failed!",
       ),
       true,
-      errors.join('\n')
+      errors.join("\n"),
     )
     assert.strictEqual(
       consoleErrorSpy.calledWith(table(messagesTable)),
       true,
-      errors.join('\n')
+      errors.join("\n"),
     )
   })
 
-  await t.test('fails with invalid W3C HTML', async () => {
-    const workingDirectory = path.join(FIXTURES_PATH, 'error-invalid-w3c-html')
+  await t.test("fails with invalid W3C HTML", async () => {
+    const workingDirectory = path.join(FIXTURES_PATH, "error-invalid-w3c-html")
     const errors: string[] = []
-    sinon.stub(console, 'error').value((error: string) => {
+    sinon.stub(console, "error").value((error: string) => {
       errors.push(error)
     })
-    const consoleErrorSpy = sinon.spy(console, 'error')
+    const consoleErrorSpy = sinon.spy(console, "error")
     const stream = new PassThrough()
     const exitCode = await cli.run(
       [`--current-working-directory=${workingDirectory}`],
       {
         stdin: process.stdin,
         stdout: stream,
-        stderr: stream
-      }
+        stderr: stream,
+      },
     )
     stream.end()
     assert.strictEqual(exitCode, 1)
     const messagesTable = [
       [
-        chalk.yellow('warning'),
-        'Consider adding a “lang” attribute to the “html” start tag to declare the language of this document.',
-        'line: 2, column: 16-6'
-      ]
+        chalk.yellow("warning"),
+        "Consider adding a “lang” attribute to the “html” start tag to declare the language of this document.",
+        "line: 2, column: 16-6",
+      ],
     ]
     assert.strictEqual(
       consoleErrorSpy.calledWith(
-        chalk.bold.red('Error:') + ' HTML validation (W3C) failed!'
+        chalk.bold.red("Error:") + " HTML validation (W3C) failed!",
       ),
       true,
-      errors.join('\n')
+      errors.join("\n"),
     )
     assert.strictEqual(
       consoleErrorSpy.calledWith(table(messagesTable)),
       true,
-      errors.join('\n')
+      errors.join("\n"),
     )
   })
 })

src/cli.ts

@@ -1,12 +1,12 @@
-import { Builtins, Cli } from 'clipanion'
+import { Builtins, Cli } from "clipanion"
 
-import { HTMLValidatorCommand } from './HTMLValidatorCommand.js'
-import { packageJSON } from './packageJSON.js'
+import { HTMLValidatorCommand } from "./HTMLValidatorCommand.js"
+import { packageJSON } from "./packageJSON.js"
 
 export const cli = new Cli({
   binaryLabel: packageJSON.name,
   binaryName: packageJSON.name,
-  binaryVersion: packageJSON.version
+  binaryVersion: packageJSON.version,
 })
 cli.register(Builtins.HelpCommand)
 cli.register(Builtins.VersionCommand)

src/index.ts

@@ -1,7 +1,7 @@
 #!/usr/bin/env node
-import { Cli } from 'clipanion'
+import { Cli } from "clipanion"
 
-import { cli } from './cli.js'
+import { cli } from "./cli.js"
 
 const [, , ...arguments_] = process.argv
 

src/packageJSON.ts

@@ -1,5 +1,5 @@
-import { readPackage } from 'read-pkg'
+import { readPackage } from "read-pkg"
 
 export const packageJSON = await readPackage({
-  cwd: new URL('..', import.meta.url)
+  cwd: new URL("..", import.meta.url),
 })

src/utils/__test__/isExistingPath.test.ts

@@ -1,26 +1,26 @@
-import test from 'node:test'
-import assert from 'node:assert/strict'
+import test from "node:test"
+import assert from "node:assert/strict"
 
-import fsMock from 'mock-fs'
+import fsMock from "mock-fs"
 
-import { isExistingPath } from '../isExistingPath.js'
+import { isExistingPath } from "../isExistingPath.js"
 
-await test('utils/isExistingPath', async (t) => {
+await test("utils/isExistingPath", async (t) => {
   t.afterEach(() => {
     fsMock.restore()
   })
 
-  await t.test('should return true if the file exists', async () => {
+  await t.test("should return true if the file exists", async () => {
     fsMock({
-      '/file.txt': ''
+      "/file.txt": "",
     })
-    assert.strictEqual(await isExistingPath('/file.txt'), true)
+    assert.strictEqual(await isExistingPath("/file.txt"), true)
   })
 
   await t.test("should return false if the file doesn't exists", async () => {
     fsMock({
-      '/file.txt': ''
+      "/file.txt": "",
     })
-    assert.strictEqual(await isExistingPath('/randomfile.txt'), false)
+    assert.strictEqual(await isExistingPath("/randomfile.txt"), false)
   })
 })

src/utils/isExistingPath.ts

@@ -1,4 +1,4 @@
-import fs from 'node:fs'
+import fs from "node:fs"
 
 export const isExistingPath = async (path: string): Promise<boolean> => {
   try {