tsconfig.ts

/**
 * @license
 * Copyright 2017 Palantir Technologies, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import { join as joinPaths } from "path";

import { findRule } from "../ruleLoader";
import { hasOwnProperty } from "../utils";


export const rules = {
    // TypeScript Specific

    "adjacent-overload-signatures": true,
    "ban-types": {
        options: [
            ["Object", "Avoid using the `Object` type. Did you mean `object`?"],
            ["Boolean", "Avoid using the `Boolean` type. Did you mean `boolean`?"],
            ["Number", "Avoid using the `Number` type. Did you mean `number`?"],
            ["String", "Avoid using the `String` type. Did you mean `string`?"],
            ["Symbol", "Avoid using the `Symbol` type. Did you mean `symbol`?"],
        ],
    },
    "member-access": [true, "check-accessor", "check-constructor"],
    "member-ordering": [true, {
        "order": "statics-first",
        "alphabetize": false,
    }],
    "no-any": false,
    "no-empty-interface": false,
    "no-import-side-effect": true,
    // Technically this is not the strictest setting, but don't want to conflict with "typedef"
    "no-inferrable-types": [true, "ignore-params"],
    "no-internal-module": true,
    "no-magic-numbers": false,
    "no-namespace": true,
    "no-non-null-assertion": false,
    "no-reference": true,
    "no-var-requires": true,
    "only-arrow-functions": false,
    "prefer-for-of": true,
    "promise-function-async": true,
    "typedef": [
        true,
        "call-signature",
        "arrow-call-signature",
        "parameter",
        "arrow-parameter",
        "property-declaration",
        "variable-declaration",
        "member-variable-declaration",
    ],
    "typedef-whitespace": [false, {
        "call-signature": "nospace",
        "index-signature": "nospace",
        "parameter": "nospace",
        "property-declaration": "nospace",
        "variable-declaration": "nospace",
    }, {
        "call-signature": "onespace",
        "index-signature": "onespace",
        "parameter": "onespace",
        "property-declaration": "onespace",
        "variable-declaration": "onespace",
    }],
    "unified-signatures": true,

    // Functionality
    "await-promise": true,
    // "ban": no sensible default
    "curly": true,
    "forin": true,
    // "import-blacklist": no sensible default
    "label-position": true,
    "no-arg": true,
    "no-bitwise": false,
    "no-conditional-assignment": true,
    "no-console": true,
    "no-construct": false,
    "no-debugger": true,
    "no-duplicate-super": true,
    "no-duplicate-variable": true,
    "no-empty": true,
    "no-eval": true,
    "no-floating-promises": true,
    "no-for-in-array": true,
    "no-inferred-empty-object-type": true,
    "no-invalid-template-strings": true,
    // "no-invalid-this": Won't this be deprecated?
    "no-misused-new": true,
    "no-null-keyword": false,
    "no-object-literal-type-assertion": true,
    "no-shadowed-variable": true,
    "no-string-literal": false,
    "no-string-throw": true,
    "no-sparse-arrays": true,
    "no-unbound-method": true,
    "no-unsafe-any": true,
    "no-unsafe-finally": true,
    "no-unused-expression": true,
    "no-unused-variable": true,
    "no-use-before-declare": true,
    "no-var-keyword": true,
    "no-void-expression": true,
    "radix": true,
    "restrict-plus-operands": false,
    "strict-boolean-expressions": false,
    "strict-type-predicates": true,
    "switch-default": false,
    "triple-equals": true,
    "use-isnan": true,

    // Maintainability

    "cyclomatic-complexity": true,
    "eofline": false,
    "indent": [true, "spaces"],
    "linebreak-style": [true, "LF"],
    "max-classes-per-file": [true, 3],
    "max-file-line-count": [true, 1000],
    "max-line-length": [true, 120],
    "no-default-export": false,
    "no-irregular-whitespace": true,
    "no-mergeable-namespace": true,
    "no-require-imports": false,
    "no-trailing-whitespace": true,
    "object-literal-sort-keys": false,
    "prefer-const": true,
    "trailing-comma": [false, {
        "multiline": "always",
        "singleline": "never",
    }],

    // Style

    "align": [true,
        "parameters",
        "arguments",
        "statements",
    ],
    "array-type": [true, "array"],
    "arrow-parens": false,
    "arrow-return-shorthand": [true],
    "callable-types": true,
    "class-name": true,
    "comment-format": [
        false,
        "check-space",
        "check-uppercase",
    ],
    "completed-docs": false,
    // "file-header": No sensible default
    "deprecation": true,
    "import-spacing": true,
    "interface-name": true,
    "interface-over-type-literal": false,
    "jsdoc-format": false,
    "match-default-export-name": false,
    "new-parens": true,
    "newline-before-return": false,
    "no-angle-bracket-type-assertion": true,
    "no-boolean-literal-compare": false,
    "no-consecutive-blank-lines": false,
    "no-parameter-properties": true,
    "no-reference-import": true,
    "no-unnecessary-callback-wrapper": false,
    "no-unnecessary-initializer": true,
    "no-unnecessary-qualifier": true,
    "no-unnecessary-type-assertion": true,
    "number-literal-format": true,
    "object-literal-key-quotes": [false, "consistent-as-needed"],
    "object-literal-shorthand": false,
    "one-line": [false,
        "check-catch",
        "check-else",
        "check-finally",
        "check-open-brace",
        "check-whitespace",
    ],
    "one-variable-per-declaration": false,
    "ordered-imports": [false, {
        "import-sources-order": "case-insensitive",
        "named-imports-order": "case-insensitive",
    }],
    "prefer-function-over-method": false,
    "prefer-method-signature": false,
    "prefer-switch": true,
    "prefer-template": false,
    "quotemark": [false, "double", "avoid-escape"],
    "return-undefined": true,
    "semicolon": [true, "always"],
    "space-before-function-paren": [false, {
        "anonymous": "never",
        "asyncArrow": "always",
        "constructor": "never",
        "method": "never",
        "named": "never",
    }],
    "variable-name": [
        false,
        "ban-keywords",
        "check-format",
    ],
    "whitespace": [
        false,
        "check-branch",
        "check-decl",
        "check-operator",
        "check-module",
        "check-separator",
        "check-type",
        "check-typecast",
        "check-preblock",
    ],
};

export const RULES_EXCLUDED_FROM_ALL_CONFIG =
    ["ban", "fileHeader", "importBlacklist", "noInvalidThis", "noSwitchCaseFallThrough", "typeofCompare"];

// Exclude typescript-only rules from jsRules, otherwise it's identical.
export const jsRules: { [key: string]: any } = {};
for (const key in rules) {
    if (!hasOwnProperty(rules, key)) {
        continue;
    }

    const Rule = findRule(key, joinPaths(__dirname, "..", "rules"));
    if (Rule === "not-found") {
        throw new Error(`Couldn't find rule '${key}'.`);
    }
    if (!Rule.metadata.typescriptOnly) {
        jsRules[key] = (rules as any)[key];
    }
}