Glyphsets API change (#831)

* Update fonts-subset-support.py

* Rewired more glyphsets code

* Revert "Update fonts-subset-support.py"

This reverts commit 22c5c85.

* Update glyphset version

Lib/gftools/subsetmerger.py

@@ -12,7 +12,7 @@
 import yaml
 from fontmake.font_project import FontProject
 from fontTools.designspaceLib import DesignSpaceDocument
-from glyphsets import GFGlyphData
+from glyphsets import unicodes_per_glyphset
 from strictyaml import HexInt, Map, Optional, Seq, Str, Enum
 from ufomerge import merge_ufos
 
@@ -59,11 +59,7 @@ def prepare_minimal_subsets(subsets):
     for subset in subsets:
         # Resolved named subsets to a set of Unicode using glyphsets data
         if "name" in subset:
-            unicodes = [
-                x["unicode"]
-                for x in GFGlyphData.glyphs_in_glyphsets([subset["name"]])
-                if x["unicode"]
-            ]
+            unicodes = unicodes_per_glyphset(subset["name"])
             if not unicodes:
                 raise ValueError("No glyphs found for subset " + subset["name"])
         else:

pyproject.toml

@@ -33,7 +33,7 @@ dependencies = [
   'glyphsLib',
   'gflanguages>=0.4.0',
   'gfsubsets>=2024.02.05',
-  'glyphsets>=0.2.1',
+  'glyphsets>=0.6.13',
   'PyGithub',
   'pillow',
   # 3.7.0 fixed a bug on parsing some METADATA.pb files.