Frontend does not work unless jupyterlab-collaboration-ui is installed

[krassowski]

Description

Installing jupyter-server-ydoc and jupyter-docprovider in the latest beta version breaks jupyterlab. Installing jupyterlab-collaboration-ui fixes it:

[krassowski]

It looks like this is due to #287 which introduced a bad dependency on @jupyter/collaboration in docprovider; docprovider cannot depend on the collaboration UI. CC @brichet.

[brichet]

@krassowski the only need for this dependency is for this token.
Do you think that it make sense to move it to another package ?

I'm not clear about the packaging of this repo. For instance the package collaboration depends on docprovider but doesn't seem to use it:

jupyter-collaboration/packages/collaboration/package.json

Line 44 in bcc36e1

"@jupyter/docprovider": "^3.0.0-beta.0",

And also I can reproduce the other errors you shared, about some missing dependencies of @jupyterlab packages....

[krassowski]

Thank you for looking into it!

Do you think that it make sense to move it to another package ?

Yes, let's move it.

I'm not clear about the packaging of this repo. For instance the package collaboration depends on docprovider but doesn't seem to use it:

It was there before the refactor too. I guess we could remove it.

And also I can reproduce the other errors you shared, about some missing dependencies of @jupyterlab packages....

By default you would only see the first two errors (error and a warning). If https://github.com/datalayer/jupyter-server-nbmodel is installed the additional error will also show up, because this issue also prevents it from starting.

[brichet]

Thanks @krassowski, I'm opening a PR to fix it, moving the IGlobalAwareness token to the docprovider package.