tslint-to-eslint-config/src/input/findTSLintConfiguration.js

Converts your TSLint configuration to the closest reasonable ESLint equivalent.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.findTSLintConfiguration = void 0;
const utils_1 = require("../utils");
const findRawConfiguration_1 = require("./findRawConfiguration");
const findReportedConfiguration_1 = require("./findReportedConfiguration");
const knownErrors = [
    [
        "command not found",
        () => new Error("The 'tslint' command was not found. Either install it globally or add it as a devDependency of this repository."),
    ],
    [
        "unknown option `--print-config",
        () => new Error("TSLint v5.18 required. Please update your version."),
    ],
    [
        "Could not find configuration path.",
        (filePath) => new Error(`Could not find your TSLint configuration file at '${filePath}'. Try providing a different --tslint path.`),
    ],
];
const findTSLintConfiguration = async (dependencies, config) => {
    var _a, _b;
    const filePath = config !== null && config !== void 0 ? config : "./tslint.json";
    const [rawConfiguration, reportedConfiguration] = await Promise.all([
        (0, findRawConfiguration_1.findRawConfiguration)(dependencies.importer, filePath),
        (0, findReportedConfiguration_1.findReportedConfiguration)(dependencies.exec, "tslint --print-config", filePath),
    ]);
    if (reportedConfiguration instanceof Error) {
        return ((_b = (_a = knownErrors.find(([knownError]) => reportedConfiguration.message.includes(knownError))) === null || _a === void 0 ? void 0 : _a[1](filePath)) !== null && _b !== void 0 ? _b : reportedConfiguration);
    }
    if (rawConfiguration instanceof Error) {
        return rawConfiguration;
    }
    const extensions = (0, utils_1.uniqueFromSources)(rawConfiguration.extends, reportedConfiguration.extends);
    const rules = {
        ...rawConfiguration.rules,
        ...reportedConfiguration.rules,
    };
    return {
        full: {
            ...(extensions.length !== 0 && { extends: extensions }),
            rules,
        },
        raw: rawConfiguration,
    };
};
exports.findTSLintConfiguration = findTSLintConfiguration;
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