.eslintrc

{
  "env": {
    "commonjs": true,
    "es6": true,
    "node": true
  },
  "extends": ["eslint:recommended", "plugin:prettier/recommended"],
  "parserOptions": {
    "ecmaVersion": 2018
  },
  "overrides": [
    {
      "files": ["*.ts"],
      "parser": "@typescript-eslint/parser",
      "parserOptions": {
        "sourceType": "module",
        "ecmaFeatures": {
          "modules": true
        },
        "project": "tsconfig.json"
      },
      "plugins": [
        "@typescript-eslint",
        "import",
        "simple-import-sort",
        "typesafe"
      ],
      "extends": ["plugin:@typescript-eslint/recommended"],
      "rules": {
        // Rules for auto sort of imports
        "simple-import-sort/imports": [
          "error",
          {
            "groups": [
              // Side effect imports.
              ["^\\u0000"],
              // Packages.
              // Things that start with a letter (or digit or underscore), or
              // `@` followed by a letter.
              ["^@?\\w"],
              // Root imports
              ["^(src)(/.*|$)"],
              ["^(tests)(/.*|$)"],
              // Parent imports. Put `..` last.
              ["^\\.\\.(?!/?$)", "^\\.\\./?$"],
              // Other relative imports. Put same-folder imports and `.` last.
              ["^\\./(?=.*/)(?!/?$)", "^\\.(?!/?$)", "^\\./?$"]
            ]
          }
        ],
        "sort-imports": "off",
        "import/order": "off",
        "import/first": "error",
        "import/newline-after-import": "error",
        "import/no-duplicates": "error",
        "@typescript-eslint/no-floating-promises": 2,
        "@typescript-eslint/no-unused-vars": 2,
        // Disabled pending refactoring of two helper functions
        // "typesafe/no-throw-sync-func": "error"
      }
    },
    { "files": ["*.spec.ts"], "extends": ["plugin:jest/recommended"] },
    {
      "files": ["*.ts", "*.js"],
      "excludedFiles": ["**/*.spec.ts", "**/.spec.js", "**/__tests__/**/*.ts"],
      "rules": {
        "@typescript-eslint/no-non-null-assertion": "error"
      }
    }
  ],
  "rules": {
    "no-unused-vars": ["error", { "argsIgnorePattern": "^_" }],
    "no-console": "warn"
  }
}