Enrich yarn web to include GH support

[bpasero]

Today you can run the web version of VSCode "serverless" via yarn web. In this model we add a single extension into the staticExtensions property to run it inside the web worker and that one registers a file system provider:

vscode/extensions/vscode-web-playground/src/extension.ts

Line 36 in 77b5058

context.subscriptions.push(vscode.workspace.registerFileSystemProvider(SCHEME, memFs, { isCaseSensitive: true }));

This is an in-memory provider and the idea would be to use a GH provider, maybe depending on a query parameter in the URL. This would only provide a readonly view on a repository, but that is fine to begin with. We could expand the capabilities depending on available API, e.g. allowing to search.

My understanding is that Eric you already wrote a file system provider once for GH that we could maybe use here.

[eamodio]

This is now supported using a ?gh=<user>/<repo> query string

[bpasero]

@eamodio having trouble trying this out, is there something I need to do other than running yarn web with that URL?

After the auth callback, I see this in VSCode:

And the callback seems to be returning to a "Not Found" page?

[eamodio]

Sorry I forgot to mention, that we can't currently support the full auth flow in yarn web (because GitHub won't allow a local host return URI). But you can provide a personal access token instead by clicking on the status bar entry when the auth flow starts. That will then be saved in local storage.

[bpasero]

Ok thanks, will try that.

I pushed 6a927e6 to fix a bad path for callback.html that was still pointing to the old location.

[eamodio]

Awesome, thanks!