ts-migrate-server/build/src/migrate/ParseTSConfig.js

A package that contains the main migration runner and spawns a TSServer process

"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.parseTSConfig = void 0;
const typescript_1 = __importDefault(require("typescript"));
function parseTSConfig(rootDir) {
    const configFile = typescript_1.default.findConfigFile(rootDir, typescript_1.default.sys.fileExists, 'tsconfig.json');
    if (!configFile) {
        throw new Error("Could not find a valid 'tsconfig.json'.");
    }
    const configFileContents = typescript_1.default.sys.readFile(configFile);
    if (configFileContents == null) {
        throw new Error(`Failed to read TypeScript config file: ${configFile}`);
    }
    const { config, error } = typescript_1.default.parseConfigFileTextToJson(configFile, configFileContents);
    if (error) {
        const errorMessage = typescript_1.default.flattenDiagnosticMessageText(error.messageText, typescript_1.default.sys.newLine);
        throw new Error(`Error parsing TypeScript config file ${configFile}: ${errorMessage}`);
    }
    const { options, fileNames, errors } = typescript_1.default.parseJsonConfigFileContent(config, typescript_1.default.sys, rootDir);
    if (errors.length > 0) {
        const errorMessage = typescript_1.default.formatDiagnostics(errors, {
            getCanonicalFileName: (fileName) => fileName,
            getCurrentDirectory: () => rootDir,
            getNewLine: () => typescript_1.default.sys.newLine,
        });
        throw new Error(`Errors parsing TypeScript config: ${errorMessage}`);
    }
    return { configFile, options, fileNames };
}
exports.parseTSConfig = parseTSConfig;
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