add hw2

node_modules/@iconify/utils/lib/loader/external-pkg.js

@@ -0,0 +1,45 @@
+import { getPossibleIconNames } from "./utils.js";
+import { searchForIcon } from "./modern.js";
+import { warnOnce } from "./warn.js";
+import { loadCollectionFromFS } from "./fs.js";
+
+/**
+* Creates a CustomIconLoader collection from an external package collection.
+*
+* @param packageName The package name.
+* @param autoInstall {AutoInstall} [autoInstall=false] - whether to automatically install
+*/
+function createExternalPackageIconLoader(packageName, autoInstall = false, cwd) {
+	let scope;
+	let collection;
+	const collections = {};
+	if (typeof packageName === "string") {
+		if (packageName.length === 0) {
+			warnOnce(`invalid package name, it is empty`);
+			return collections;
+		}
+		if (packageName[0] === "@") {
+			if (packageName.indexOf("/") === -1) {
+				warnOnce(`invalid scoped package name "${packageName}"`);
+				return collections;
+			}
+			[scope, collection] = packageName.split("/");
+		} else {
+			scope = "";
+			collection = packageName;
+		}
+	} else [scope, collection] = packageName;
+	collections[collection] = createCustomIconLoader(scope, collection, autoInstall, cwd);
+	return collections;
+}
+function createCustomIconLoader(scope, collection, autoInstall, cwd) {
+	const iconSetPromise = loadCollectionFromFS(collection, autoInstall, scope, cwd);
+	return (async (icon) => {
+		const iconSet = await iconSetPromise;
+		let result;
+		if (iconSet) result = await searchForIcon(iconSet, collection, getPossibleIconNames(icon));
+		return result;
+	});
+}
+
+export { createExternalPackageIconLoader };