update

Author: xiaoxiaojx

README.md

@@ -111,7 +111,7 @@ myResolver.resolve(
 | restrictions     | []                          | A list of resolve restrictions                                                                                                                            |
 | roots            | []                          | A list of root paths                                                                                                                                      |
 | symlinks         | true                        | Whether to resolve symlinks to their symlinked location                                                                                                   |
-| tsconfig         | "tsconfig.json"             | Path to the tsconfig.json file to use for paths mapping                                                                                                   |
+| tsconfig         | "auto"                      | Path to the tsconfig.json file to use for paths mapping, The default value "auto" means it will try to load tsconfig.json.                                |
 | unsafeCache      | false                       | Use this cache object to unsafely cache the successful requests                                                                                           |
 
 ## Plugins

lib/ResolverFactory.js

@@ -297,7 +297,7 @@ function createOptions(options) {
 		preferRelative: options.preferRelative || false,
 		preferAbsolute: options.preferAbsolute || false,
 		restrictions: new Set(options.restrictions),
-		tsconfig: options.tsconfig || "",
+		tsconfig: options.tsconfig || "auto",
 	};
 }
 

lib/TsconfigPathsPlugin.js

@@ -20,21 +20,21 @@ const { modulesResolveHandler } = require("./ModulesUtils");
  * @property {string=} context - Context directory for resolving relative paths
  */
 
+const DEFAULT_CONFIG_FILE = "tsconfig.json";
+
 module.exports = class TsconfigPathsPlugin {
 	/**
-	 * @param {string} configFile tsconfig file path
+	 * @param {"auto" | string} configFile tsconfig file path
 	 */
 	constructor(configFile) {
-		this.configFile = configFile;
+		this.configFile = configFile === "auto" ? DEFAULT_CONFIG_FILE : configFile;
 	}
 
 	/**
 	 * @param {Resolver} resolver the resolver
 	 * @returns {void}
 	 */
 	apply(resolver) {
-		if (!this.configFile) return;
-
 		const aliasTarget = resolver.ensureHook("internal-resolve");
 		const moduleTarget = resolver.ensureHook("module");
 		const aliasOptionsPromise = this.loadAndConvertPaths(resolver);