Linting

Author: jerone

.eslintignore

@@ -1 +1,8 @@
 node_modules/
+package-lock.json
+*.min.js
+*.jpeg
+*.jpg
+*.png
+
+Horizon_TV_Fixer/**/*

.eslintrc.js

@@ -1,23 +1,34 @@
 module.exports = {
+	root: true,
 	env: {
 		browser: true,
 		greasemonkey: true,
 		es2021: true,
 	},
+	parserOptions: {
+		ecmaVersion: "latest",
+	},
+	extends: [
+		"plugin:@cspell/recommended",
+		"plugin:security/recommended-legacy",
+
+		// Display Prettier errors as ESLint errors.
+		// Enables eslint-plugin-prettier and eslint-config-prettier.
+		"plugin:prettier/recommended",
+
+		//! Prettier should always be the last configuration in the extends array.
+	],
+	rules: {},
 	overrides: [
-		{
-			env: {
-				node: true,
-			},
-			files: [".eslintrc.{js,cjs}"],
-			parserOptions: {
-				sourceType: "script",
-			},
-		},
+		/*
+		 * Userscript files.
+		 */
 		{
 			files: ["*.user.js"],
 			extends: ["plugin:userscripts/recommended"],
-			rules: {},
+			rules: {
+				"userscripts/better-use-match": "off", // Disable this warning for now.
+			},
 			settings: {
 				userscriptVersions: {
 					tampermonkey: ">=4",
@@ -26,9 +37,87 @@ module.exports = {
 				},
 			},
 		},
+
+		/*
+		 * JSON files.
+		 */
+		{
+			files: ["*.json"],
+			extends: [
+				"plugin:json/recommended-with-comments",
+
+				// Display Prettier errors as ESLint errors.
+				// Enables eslint-plugin-prettier and eslint-config-prettier.
+				"plugin:prettier/recommended",
+
+				//! Prettier should always be the last configuration in the extends array.
+			],
+		},
+
+		/*
+		 * `package.json` file.
+		 * This needs it's own configuration, because it doesn't work together with `plugin:json`.
+		 * See https://github.com/kellyselden/eslint-plugin-json-files/issues/40
+		 * Must be after `*.json`.
+		 */
+		{
+			files: ["package.json"],
+			plugins: ["json-files"],
+			extends: [
+				// Display Prettier errors as ESLint errors.
+				// Enables eslint-plugin-prettier and eslint-config-prettier.
+				"plugin:prettier/recommended",
+
+				//! Prettier should always be the last configuration in the extends array.
+			],
+			rules: {
+				"json-files/ensure-repository-directory": "error",
+				"json-files/no-branch-in-dependencies": "error",
+				"json-files/require-engines": "error",
+				"json-files/require-license": "error",
+				"json-files/require-unique-dependency-names": "error",
+				"json-files/sort-package-json": "error",
+			},
+		},
+
+		/*
+		 * Markdown files.
+		 */
+		{
+			files: ["*.md"],
+			parser: "eslint-plugin-markdownlint/parser",
+			extends: [
+				"plugin:markdownlint/recommended",
+
+				// Display Prettier errors as ESLint errors.
+				// Enables eslint-plugin-prettier and eslint-config-prettier.
+				"plugin:prettier/recommended",
+
+				//! Prettier should always be the last configuration in the extends array.
+			],
+			rules: {
+				"markdownlint/md007": [
+					"error",
+					{
+						indent: 4,
+					},
+				], // For compatibility with Prettier.
+				"markdownlint/md030": [
+					"error",
+					{
+						ol_multi: 3,
+						ol_single: 3,
+						ul_multi: 3,
+						ul_single: 3,
+					},
+				], // For compatibility with Prettier.
+				"markdownlint/md013": "off", // Disable line length.
+				"markdownlint/md033": [
+					"error",
+					{ allowed_elements: ["br", "sup", "kbd"] },
+				],
+				"prettier/prettier": ["error", { parser: "markdown" }],
+			},
+		},
 	],
-	parserOptions: {
-		ecmaVersion: "latest",
-	},
-	rules: {},
 };

.lockfile-lintrc.json

@@ -0,0 +1,12 @@
+{
+	"allowedHosts": ["npm"],
+	"allowedPackageNameAliases": [
+		"string-width-cjs:string-width",
+		"strip-ansi-cjs:strip-ansi",
+		"wrap-ansi-cjs:wrap-ansi"
+	],
+	"path": "package-lock.json",
+	"type": "npm",
+	"validateHttps": true,
+	"validatePackageNames": true
+}

.prettierignore

@@ -0,0 +1,8 @@
+node_modules/
+package-lock.json
+*.min.js
+*.jpeg
+*.jpg
+*.png
+
+Horizon_TV_Fixer/**/*