LicensesManager and API/CLI

[bollwyvl]

• fixes Move WIP license reporting here from core? #160
• moved from More license updates jupyterlab#9779
• relationship between the two tracked by https://github.com/bollwyvl/jupyterlab-meta/tree/more-license-work

This adds lab/api/licenses and the base class for jupyter lab licenses (to be refined by a particular application) for listing the licenses of frontend libraries included in the core (and any federated) bundles.

The (configurable) third-party-licenses.json is collected by @jupyterlab/builder.

This will help ensure that license compliance (for e.g. Apache-2.0, which requires distribution of the license text) is not hard to achieve for both core and extension developers.

[codecov-io]

Codecov Report

Merging #161 (eea2380) into master (a82794a) will increase coverage by 3.15%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #161      +/-   ##
==========================================
+ Coverage   74.61%   77.76%   +3.15%     
==========================================
  Files          21       24       +3     
  Lines        1670     1907     +237     
==========================================
+ Hits         1246     1483     +237     
  Misses        424      424              

Impacted Files	Coverage Δ
jupyterlab_server/__init__.py	87.50% <100.00%> (+1.78%)	⬆️
jupyterlab_server/config.py	63.37% <100.00%> (+0.87%)	⬆️
jupyterlab_server/handlers.py	89.26% <100.00%> (+0.37%)	⬆️
jupyterlab_server/licenses_app.py	100.00% <100.00%> (ø)
jupyterlab_server/licenses_handler.py	100.00% <100.00%> (ø)
jupyterlab_server/tests/test_licenses_api.py	100.00% <100.00%> (ø)

---

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[blink1073]

Is this ready for review?

[bollwyvl]

Thanks for checking in!

This side of the house is ready for review. Nothing will happen (and certainly not break) until the @jupyterlab/builder side of the house has been updated, as there won't be any files in place, but it was useful to co-develop the features to smoke test all the bells and whistles.

[bollwyvl]

Updated this to add a bundles top-level key to the JSON response, but otherwise, remains ready for review.

[goanpeca]

Thanks a lot for working on this @bollwyvl 🚀

[bollwyvl]

A remaining todo on this is to add it to the openapi spec... looking into it.

[codecov-commenter]

Codecov Report

Merging #161 (783e8eb) into master (d1bb603) will increase coverage by 2.91%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #161      +/-   ##
==========================================
+ Coverage   75.69%   78.60%   +2.90%     
==========================================
  Files          24       27       +3     
  Lines        1757     1996     +239     
==========================================
+ Hits         1330     1569     +239     
  Misses        427      427              

Impacted Files	Coverage Δ
jupyterlab_server/__init__.py	87.50% <100.00%> (+1.78%)	⬆️
jupyterlab_server/config.py	63.37% <100.00%> (+0.87%)	⬆️
jupyterlab_server/handlers.py	89.26% <100.00%> (+0.37%)	⬆️
jupyterlab_server/licenses_app.py	100.00% <100.00%> (ø)
jupyterlab_server/licenses_handler.py	100.00% <100.00%> (ø)
jupyterlab_server/tests/test_licenses_api.py	100.00% <100.00%> (ø)

---

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Δ = absolute <relative> (impact), ø = not affected, ? = missing data
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[blink1073]

Thank you!