Update ufoLib to v3.0.0

[miguelsousa]

No description provided.

[anthrotype]

🤞

[anthrotype]

ok that failure is a known one, but believe me it's a feature ;)
https://travis-ci.org/adobe-type-tools/afdko/jobs/440211784#L2126

basically makeinstancesufo or mutatorMath (not sure) is attempting to write a UFO to a path whose parent directory doesn't exist. Previously ufoLib would silently create all the directory tree (as in mkdir -p), now it fails with an error ("Cannot write to ...; the directory does not exist"), which is the right thing to do.

See unified-font-object/ufoLib#60

[anthrotype]

this other failure is because checkoutlinesufo.py is modifying the UFOWriter.layerContents dictionary using a bytes string as the key (line 139, the global variable PROCD_GLYPHS_LAYER_NAME).
It should use unicode string instead, because the pyfilesystem2 API only accepts unicode strings for path names.

https://travis-ci.org/adobe-type-tools/afdko/jobs/440211784#L1518

[miguelsousa]

Thanks for the insights Cosimo.

[miguelsousa]

I was going to submit a patch to mutatorMath for the directory tree creation problem, but I think a better move for afdko is to resume the work on #402.

[anthrotype]

that sounds like a better plan. but ufoProcessor will have the same problem

[miguelsousa]

but ufoProcessor will have the same problem

Right.

Anyways, it's clearer now what work lies ahead for afdko and in which order it should be done. We'll probably go straight to fontTools.ufoLib when we're ready, rather than ufoLib==3.0.0.