jupyter lab dashboard link

[oliver-sanders]

Requires cylc/cylc-uiserver#641

To review:

• Try running cylc gui and insepecting the Dashboard page (unless you have installed Jupyter lab) the link should be disabled.
• Try installing Jupyter Lab (pip install jupyterlab) and re-run the cylc gui, then follow the link on the Dashboard page.

Check List

• I have read CONTRIBUTING.md and added my name as a Code Contributor.
• Contains logically grouped changes (else tidy your branch by rebase).
• Does not contain off-topic changes (use other PRs for other changes).
• Applied any dependency changes to both setup.cfg (and conda-environment.yml if present).
• Tests are included (or explain why tests are not needed).
• Changelog entry included if this is a change that can affect users
• Cylc-Doc pull request opened if required at cylc/cylc-doc/pull/XXXX.
• If this is a bug fix, PR should be raised against the relevant ?.?.x branch.

[markgrahamdawson]

The jupyterlab stops being disabled when I have done the pip install jupyterlab and I have cylc/cylc-uiserver#641 checked out.

But when I click it it goes to the noAuth page

[oliver-sanders]

But when I click it it goes to the noAuth page

Can you open Jupyter Lab by changing the URL from /cylc/# to /lab?

[oliver-sanders]

(@wxtim, use build or build:watch to test, but not serve as this isn't set up for multi-extension access)

[wxtim]

❤️

[wxtim]

Approve - It'd be nicer if the tooltip didn't give you the "jupyterlab is not installed" message when it is, but the UIS version is wrong, but shouldn't block this feature IMO.

If you can think of an easy way to do it, do so, else merge?

[wxtim]

There's no way of telling without modifying the UIS PR providing this data whether ?.lab is missing because it's not installed, or becuase user hasn't been endowed with that data is there?

[oliver-sanders]

If you can think of an easy way to do it, do so, else merge?

The easy way is to bundle this with an appropriate UIS version so that this situation never occurs.