testenv: restored eslint

testenv/linters/eslintrc.js

@@ -0,0 +1,57 @@
+const js = require("/usr/lib/node_modules/eslint/node_modules/@eslint/js/src/index.js");
+const globals = require("/usr/lib/node_modules/eslint/node_modules/@eslint/eslintrc/node_modules/globals/index.js");
+const parser = require("/usr/lib/node_modules/@babel/eslint-parser/lib/index.cjs");
+
+module.exports = [
+	js.configs.recommended,
+
+	{
+		files: ["**/*.js"],
+		languageOptions: {
+			globals: globals.browser,
+			ecmaVersion: 2015,
+			parser: parser,
+			parserOptions: {
+				ecmaVersion: 2025,
+				sourceType: "module",
+				allowImportExportEverywhere: true,
+				requireConfigFile: false,
+			},
+		},
+	},
+
+	{
+		rules: {
+			indent: [
+				"error",
+				"tab",
+				{SwitchCase: 1},
+			],
+			"linebreak-style": [
+				"error",
+				"unix",
+			],
+			quotes: [
+				"error",
+				"double",
+			],
+			"quote-props": [
+				"error",
+				"always",
+			],
+			"semi": [
+				"error",
+				"always",
+			],
+			"comma-dangle": [
+				"error",
+				"always-multiline",
+			],
+			"no-unused-vars": [
+				"error",
+				{vars: "local", args: "after-used"},
+			],
+		},
+	},
+
+];