.eslintrc.json

{
  "env": {
    "browser": true,
    "es6": true,
    "node": true,
    "mocha": true
  },
  "globals": {
    "app": true,        // BitGo side-effect from testutil
    "ethUtil": true     // BitGo side-effect from testutil
  },
  "parser": "@typescript-eslint/parser",
  "plugins": ["@typescript-eslint"],
  "extends": [
    "eslint:recommended",
    "plugin:@typescript-eslint/recommended"
  ],
  "parserOptions": {
    "ecmaVersion": 8
  },
  "rules": {
    "indent": ["error", 2, {"SwitchCase": 1, "MemberExpression": "off"}],
    "linebreak-style": ["error", "unix"],
    "semi": ["error", "always"],
    "eqeqeq": ["warn", "always"],
    "curly": "error",
    "no-extra-boolean-cast": "error",
    "object-curly-spacing": ["error", "always", {"objectsInObjects": true, "arraysInObjects": true}],
    "array-bracket-spacing": ["error", "never"],
    "require-yield": "off",
    "func-call-spacing": ["error", "never"],
    "quotes": ["error", "single", { "avoidEscape": true, "allowTemplateLiterals": true }],
    "key-spacing": ["error", { "beforeColon": false, "afterColon": true, "mode": "strict" }],
    "quote-props": ["error", "as-needed"],
    "no-console": "off",
    "no-cond-assign": "error",
    "no-empty": ["error", { "allowEmptyCatch": false }],
    "no-inner-declarations": "off",
    "no-useless-escape": "off",
    "func-names": "off",
    "generator-star-spacing": ["error", {"before": true, "after": false}],
    "yield-star-spacing": ["error", {"before": true, "after": false}],
    "no-case-declarations": "off",
    "no-duplicate-imports": "error",  // whilst imports are not being used, if we start to use them, we do not want duplicates
    "no-unreachable": "error",
    "no-path-concat": "off",
    "no-process-env": "off",
    "no-process-exit": "off",
    "no-sync": "off",
    "brace-style": ["error", "1tbs", { "allowSingleLine": true }],
    "eol-last": "error",
    "no-trailing-spaces": ["warn", { "skipBlankLines": true, "ignoreComments": true }],
    "no-unneeded-ternary": "error",
    "switch-colon-spacing": ["error", {"before": false, "after": true}],
    "arrow-spacing": ["error", { "before": true, "after": true }],
    "no-dupe-args": "error",
    "no-undef": "error",
    "no-var": "error",
    "prefer-const": "error",
    "no-const-assign": "error",
    "no-compare-neg-zero": "error",
    "no-extra-semi": "error",
    "radix": "error",
    "comma-spacing": ["error", { "before": false, "after": true }],
    "comma-dangle": ["error", "always-multiline"],
    "no-multi-spaces": ["error", {"ignoreEOLComments": true}],
    "keyword-spacing": ["error"],
    "space-before-blocks": ["error"],
    "space-infix-ops": ["error"],
    "no-multiple-empty-lines": ["error", { "max": 2, "maxEOF": 1 }],
    "multiline-comment-style": ["error", "starred-block"],
    "func-name-matching": ["error", { "includeCommonJSModuleExports": false }],
    "no-dupe-keys": "error",
    "no-irregular-whitespace": "error",
    "no-duplicate-case": "error",
    "@typescript-eslint/no-explicit-any": "off",
    "@typescript-eslint/explicit-module-boundary-types": "off",
    "@typescript-eslint/no-this-alias": "warn",
    "@typescript-eslint/no-var-requires": "off",
    "@typescript-eslint/no-unused-vars": ["error", {
      "vars": "all",
      "varsIgnorePattern": "^_",
      "args": "none",
      "argsIgnorePattern": "^_"
      /* TODO: enable this rule and fix errors
      "caughtErrors": "all",
      "caughtErrorsIgnorePattern": "^_"
      */
    }],
    "@typescript-eslint/ban-ts-comment": ["error", {
      "ts-expect-error": "allow-with-description",
      "ts-ignore": "allow-with-description",
      "ts-nocheck": "allow-with-description",
      "ts-check": false
    }],
    "no-with": "error",
    "max-len": ["error", {
      "code": 160,
      "ignoreComments": true,
      "ignoreStrings": true,
      "ignoreTemplateLiterals": true,
      "ignoreRegExpLiterals": true
    }]
  }
}