Initial commit

scripts/download-assets.js

@@ -0,0 +1,64 @@
+import { createWriteStream, existsSync } from "node:fs";
+import { mkdir, readFile, rm } from "node:fs/promises";
+import * as http from "node:http";
+import * as https from "node:https";
+import { get } from "node:https";
+import { basename, join } from "node:path";
+import { URL } from "node:url";
+
+const assetsDirectory = "examples/assets/";
+
+await mkdir(assetsDirectory, { recursive: true });
+
+const urls = JSON.parse(await readFile("examples/assets.json", "utf8"));
+let filesToDownload = 0;
+
+for (const [key, data] of Object.entries(urls)) {
+  const url = data.url;
+  const directory = assetsDirectory + data.directory;
+  const filePath = join(directory, key);
+
+  await mkdir(directory, { recursive: true });
+
+  if (existsSync(filePath)) {
+    console.log(
+      `File: ${filePath} ' exists. Do not download again. npm run assets:clean to delete`,
+    );
+    continue;
+  }
+  downloadFile(url, key, filePath);
+  console.log(`Downloading file ${key}, from URL: ${url}`);
+}
+
+function downloadFile(fileUrl, fileName, filePath) {
+  const url = new URL(fileUrl);
+  const file = createWriteStream(filePath);
+
+  const protocol = url.protocol === "https:" ? https.get : http.get;
+
+  filesToDownload++;
+
+  protocol(fileUrl, (response) => {
+    if (response.statusCode !== 200) {
+      filesToDownload--;
+      console.error(
+        `Download failed: ${response.statusCode} ${response.statusMessage}`,
+      );
+      return;
+    }
+
+    response.pipe(file);
+
+    file.on("finish", () => {
+      file.close(() => {
+        filesToDownload--;
+        console.log(`${fileName} downloaded to ${filePath}`);
+        if (filesToDownload === 0) {
+          console.log("Success! All assets downloaded");
+        }
+      });
+    });
+  }).on("error", (err) => {
+    console.error(`Error: ${err.message}`);
+  });
+}