Pull lost code from Firebase Hosting deployment

You should of course add your own version control (e.g. git) to manage your revisions and backups so this doesn't occur.

There is a script you can run to download all the assets using the CLI. You can find the script and instructions here. It can also be run using npx:

npx https://gist.github.com/mbleigh/9c8680cf319ace2f506f57380da66e7d <site_name>

Note that this only returns the compiled/rendered content from the specified public folder and not any precompiled source you may have had on the development machine.

Since your files are static assets, you could also scrape them using wget. This is inferior for advanced apps as you'll get the rendered content and not the source:

wget -r -np https://<YOURAPPNAME>.firebaseapp.com

Read more on scraping web sites here: https://apple.stackexchange.com/questions/100570/getting-files-all-at-once-from-a-web-page-using-curl

Maybe this answer is not exactly consisted with requested direction but in order to list the files which are being uploaded you could during the deploy use --debug switch:

firebase deploy --debug

With this option you will see the POST request. Something like that:

>>> HTTP REQUEST POST https://deploy.firebase.com/firebase/yourapp/releases?token=XXX public=dist, version=-KE5UDaj7oCppckjEBaE, prefix=-KE5UDaj7oCppckjEBaE/, manifest=[path=404.html, object=404.html, path=scripts\main\main.html, object=scripts\main\main.html, path=scripts\scripts.d6106dbd.js, object=scripts\scripts.d6106dbd.js, path=scripts\vendor.68cdc83b.js, object=scripts\vendor.68cdc83b.js, path=styles\main.5b335e2d.css, object=styles\main.5b335e2d.css, path=styles\vendor.d41d8cd9.css, object=styles\vendor.d41d8cd9.css], rules=undefined <<< HTTP RESPONSE 200 server=nginx, date=Wed, 30 Mar 2016 07:46:31 GMT, content-type=application/json; charset=utf-8, content-length=34, connection=close, access-control-allow-origin=*, access-control-allow-methods=GET, PUT, POST, DELETE, OPTIONS, strict-transport-security=max-age=31556926; includeSubDomains; preload, x-content-type-options=nosniff

It might helps to trace what is rally uploaded to firebase hosting.

But I agree that the lack option to simple list the files on firebase hosting do not encourage to use this service.