Retry downloads during build process

scripts/helpers/internals.js

@@ -5,18 +5,53 @@ const { readFile } = require("fs/promises");
 const { createHash } = require("crypto");
 const https = require("follow-redirects").https;
 
-function downloadFile(url, path) {
+function downloadFile(url, path, retries = 3) {
   return new Promise((resolve, reject) => {
-    const stream = createWriteStream(path);
-    https
-      .get(url, (response) => {
-        response.pipe(stream);
-      })
-      .on("error", reject);
-
-    stream.on("finish", () => {
-      stream.close(resolve);
-    });
+    const attempt = (remaining) => {
+      const stream = createWriteStream(path);
+      let settled = false;
+      const cleanup = () => {
+        stream.removeAllListeners("finish");
+        stream.removeAllListeners("error");
+      };
+      const onError = (err) => {
+        if (!settled) {
+          settled = true;
+          cleanup();
+          if (remaining > 0) {
+            stream.close(() => {
+              console.error(
+                `Download failed, retrying... (${remaining} attempts left)`
+              );
+              setTimeout(() => {
+                attempt(remaining - 1);
+              }, 1000); // Wait 1 second before retrying
+            });
+          } else {
+            reject(err);
+          }
+        }
+      };
+      const onFinish = () => {
+        if (!settled) {
+          settled = true;
+          cleanup();
+          stream.close(resolve);
+        }
+      };
+
+      // Send http request to download the file
+      https
+        .get(url, (response) => {
+          response.pipe(stream);
+        })
+        .on("error", onError);
+      stream.on("finish", onFinish);
+      stream.on("error", onError);
+    };
+
+    // Start the first attempt
+    attempt(retries);
   });
 }