Fix #2314 by ignoring deleted assets in zip download

server/controllers/project.controller.js

@@ -215,48 +215,27 @@ function bundleExternalLibs(project) {
   });
 }
 
-function addFileToZip(file, files, zip, path = '') {
-  return new Promise((resolve, reject) => {
-    if (file.fileType === 'folder') {
-      const newPath = file.name === 'root' ? path : `${path}${file.name}/`;
-      const numChildFiles = file.children.filter((f) => f.fileType !== 'folder')
-        .length;
-      let childrenAdded = 0;
-      if (numChildFiles === 0) {
-        zip.folder(file.name);
-        resolve();
-      }
-      file.children.forEach(async (fileId) => {
+async function addFileToZip(file, files, zip) {
+  if (file.fileType === 'folder') {
+    const folderZip = file.name === 'root' ? zip : zip.folder(file.name);
+    await Promise.all(
+      file.children.map((fileId) => {
         const childFile = files.find((f) => f.id === fileId);
-
-        try {
-          await addFileToZip(childFile, files, zip, newPath);
-          childrenAdded += 1;
-
-          if (childrenAdded === numChildFiles) {
-            resolve();
-          }
-        } catch (err) {
-          reject(err);
-        }
+        return addFileToZip(childFile, files, folderZip);
+      })
+    );
+  } else if (file.url) {
+    try {
+      const res = await axios.get(file.url, {
+        responseType: 'arraybuffer'
       });
-    } else if (file.url) {
-      axios
-        .get(file.url, {
-          responseType: 'arraybuffer'
-        })
-        .then(({ data }) => {
-          zip.file(`${path}${file.name}`, data);
-          resolve();
-        })
-        .catch((err) => {
-          reject(err);
-        });
-    } else {
-      zip.file(`${path}${file.name}`, file.content);
-      resolve();
+      zip.file(file.name, res.data);
+    } catch (e) {
+      zip.file(file.name, new ArrayBuffer(0));
     }
-  });
+  } else {
+    zip.file(file.name, file.content);
+  }
 }
 
 async function buildZip(project, req, res) {