.eslintrc.js

/* eslint-env node */

module.exports = {
  parserOptions: {
    parser: "@typescript-eslint/parser",
    project: ["./tsconfig.json", "./cypress/tsconfig.json"],
    sourceType: "script",
  },
  env: {
    browser: true,
    node: false,
  },
  plugins: ["svelte3", "@typescript-eslint", "jest", "cypress"],
  extends: [
    "eslint:recommended",
    "plugin:@typescript-eslint/recommended",
    "plugin:@typescript-eslint/recommended-requiring-type-checking",
    "plugin:prettier/recommended",
  ],
  rules: {
    "no-warning-comments": "warn",
    "@typescript-eslint/array-type": ["error", { default: "generic" }],
    "@typescript-eslint/consistent-indexed-object-style": "error",
    "@typescript-eslint/consistent-type-assertions": "error",
    "@typescript-eslint/consistent-type-definitions": "error",
    "@typescript-eslint/consistent-type-imports": "error",
    "@typescript-eslint/explicit-function-return-type": "error",
    "@typescript-eslint/explicit-member-accessibility": "error",
    "@typescript-eslint/explicit-module-boundary-types": "error",
    "@typescript-eslint/member-delimiter-style": "error",
    "@typescript-eslint/member-ordering": "error",
    "@typescript-eslint/method-signature-style": ["error", "method"],
    "@typescript-eslint/no-base-to-string": "error",
    "@typescript-eslint/no-confusing-non-null-assertion": "error",
    "@typescript-eslint/no-confusing-void-expression": "error",
    "@typescript-eslint/no-extraneous-class": "error",
    "@typescript-eslint/no-invalid-void-type": "error",
    "@typescript-eslint/no-meaningless-void-operator": "error",
    "@typescript-eslint/no-namespace": ["error", { allowDeclarations: true }],
    "@typescript-eslint/no-non-null-asserted-nullish-coalescing": "error",
    "@typescript-eslint/no-parameter-properties": "error",
    "@typescript-eslint/no-unnecessary-boolean-literal-compare": "error",
    "@typescript-eslint/no-unnecessary-condition": "error",
    "@typescript-eslint/no-unnecessary-qualifier": "error",
    "@typescript-eslint/non-nullable-type-assertion-style": "error",
    "@typescript-eslint/prefer-for-of": "error",
    "@typescript-eslint/prefer-function-type": "error",
    "@typescript-eslint/prefer-includes": "error",
    "@typescript-eslint/prefer-literal-enum-member": "error",
    "@typescript-eslint/prefer-nullish-coalescing": "error",
    "@typescript-eslint/prefer-optional-chain": "error",
    "@typescript-eslint/prefer-readonly": "error",
    "@typescript-eslint/prefer-reduce-type-parameter": "error",
    "@typescript-eslint/prefer-regexp-exec": "error",
    "@typescript-eslint/prefer-return-this-type": "error",
    "@typescript-eslint/prefer-string-starts-ends-with": "error",
    "@typescript-eslint/promise-function-async": "error",
    "@typescript-eslint/require-array-sort-compare": "error",
    "@typescript-eslint/sort-type-union-intersection-members": "error",
    "@typescript-eslint/strict-boolean-expressions": "error",
    "@typescript-eslint/switch-exhaustiveness-check": "error",
    "@typescript-eslint/unified-signatures": "error",
    "@typescript-eslint/no-non-null-assertion": "off",
  },
  settings: {
    "svelte3/typescript": require("typescript"),
    "svelte3/ignore-styles": () => true,
  },
  overrides: [
    {
      files: ["*.svelte"],
      processor: "svelte3/svelte3",
    },
    {
      parserOptions: {
        project: null,
      },
      files: [
        "gulpfile.js",
        "backend.webpack.config.js",
        "frontend.webpack.config.js",
        "test.frontend.webpack.config.js",
        ".eslintrc.js",
      ],
      rules: {
        "@typescript-eslint/await-thenable": "off",
        "@typescript-eslint/explicit-function-return-type": "off",
        "@typescript-eslint/no-base-to-string": "off",
        "@typescript-eslint/no-confusing-void-expression": "off",
        "@typescript-eslint/no-floating-promises": "off",
        "@typescript-eslint/no-implied-eval": "off",
        "@typescript-eslint/no-meaningless-void-operator": "off",
        "@typescript-eslint/no-misused-promises": "off",
        "@typescript-eslint/no-unnecessary-boolean-literal-compare": "off",
        "@typescript-eslint/no-unnecessary-condition": "off",
        "@typescript-eslint/no-unnecessary-qualifier": "off",
        "@typescript-eslint/no-unnecessary-type-assertion": "off",
        "@typescript-eslint/no-unsafe-argument": "off",
        "@typescript-eslint/no-unsafe-assignment": "off",
        "@typescript-eslint/no-unsafe-call": "off",
        "@typescript-eslint/no-unsafe-member-access": "off",
        "@typescript-eslint/no-unsafe-return": "off",
        "@typescript-eslint/no-var-requires": "off",
        "@typescript-eslint/non-nullable-type-assertion-style": "off",
        "@typescript-eslint/prefer-includes": "off",
        "@typescript-eslint/prefer-nullish-coalescing": "off",
        "@typescript-eslint/prefer-readonly": "off",
        "@typescript-eslint/prefer-reduce-type-parameter": "off",
        "@typescript-eslint/prefer-regexp-exec": "off",
        "@typescript-eslint/prefer-return-this-type": "off",
        "@typescript-eslint/prefer-string-starts-ends-with": "off",
        "@typescript-eslint/promise-function-async": "off",
        "@typescript-eslint/require-array-sort-compare": "off",
        "@typescript-eslint/require-await": "off",
        "@typescript-eslint/restrict-plus-operands": "off",
        "@typescript-eslint/restrict-template-expressions": "off",
        "@typescript-eslint/strict-boolean-expressions": "off",
        "@typescript-eslint/switch-exhaustiveness-check": "off",
        "@typescript-eslint/unbound-method": "off",
      },
    },
    {
      files: ["__tests__/backend/**/*.test.ts"],
      extends: ["plugin:jest/recommended", "plugin:jest/style"],
      rules: {
        "jest/consistent-test-it": ["error", { withinDescribe: "test" }],
        "jest/no-duplicate-hooks": "error",
        "jest/no-if": "error",
        "jest/no-test-return-statement": "error",
        "jest/prefer-called-with": "error",
        "jest/prefer-expect-assertions": [
          "error",
          { onlyFunctionsWithAsyncKeyword: true },
        ],
        "jest/prefer-expect-resolves": "error",
        "jest/prefer-hooks-on-top": "error",
        "jest/prefer-spy-on": "error",
        "jest/prefer-strict-equal": "error",
        "jest/require-hook": "error",
        "jest/require-to-throw-message": "error",
        "jest/unbound-method": "error",
      },
    },
    {
      files: ["__tests__/frontend/**/*.test.ts"],
      extends: ["plugin:cypress/recommended"],
      rules: {
        "cypress/no-force": "error",
        "cypress/assertion-before-screenshot": "error",
        "cypress/no-pause": "error",
      },
    },
  ],
  globals: {
    google: "readonly",
    MoveError: "readonly",
    MoveResponse: "readonly",
    NamedRecord: "readonly",
  },
};