feat(create): download templates with giget

Made-with: Cursor

packages/create/src/download.ts

@@ -0,0 +1,24 @@
+import os from "node:os";
+import path from "node:path";
+import { randomUUID } from "node:crypto";
+import { downloadTemplate } from "giget";
+import { CliError } from "./errors.js";
+
+export async function downloadExampleToTemp(
+  gigetSource: string
+): Promise<string> {
+  const dir = path.join(os.tmpdir(), `create-antd-admin-${randomUUID()}`);
+  try {
+    const { dir: outDir } = await downloadTemplate(gigetSource, {
+      dir,
+      forceClean: true,
+    });
+    return outDir;
+  } catch (e) {
+    const msg = e instanceof Error ? e.message : String(e);
+    throw new CliError(
+      `Failed to download template.\nSource: ${gigetSource}\n${msg}`,
+      "DOWNLOAD_FAILED"
+    );
+  }
+}