ufo_structure is sometimes undefined and set to None

[moyogo]

No ufo_structure argument is passed with run_from_glyphs() so _fix_ufo_path() fails.

fontmake/Lib/fontmake/font_project.py

Lines 904 to 917 in e9a0736

	designspace = self.build_master_ufos(
	glyphs_path,
	designspace_path=designspace_path,
	master_dir=master_dir,
	instance_dir=instance_dir,
	family_name=family_name,
	mti_source=mti_source,
	write_skipexportglyphs=write_skipexportglyphs,
	generate_GDEF=generate_GDEF,
	ufo_structure=kwargs.get("ufo_structure"),
	indent_json=kwargs.get("indent_json"),
	glyph_data=glyph_data,
	save_ufos=save_ufos,
	)

fontmake/Lib/fontmake/font_project.py

Lines 172 to 176 in e9a0736

	def _fix_ufo_path(path, ufo_structure):
	"""Normalizes UFO path and updates extension suffix to match its structure"""
	return os.path.normpath(
	Path(path).with_suffix(UFO_STRUCTURE_EXTENSIONS[ufo_structure])
	)