build process improvement

.build/generate.py

@@ -0,0 +1,28 @@
+import os
+import fontforge
+
+# svg2ttf library does not support fill-rule="evenodd" so after converting icons to outlineStroke we fix path directions to work with "nonzero"
+# more: https://github.com/tabler/tabler-icons/issues/13 - thanks for awesome suggestions in the issue
+
+
+print ("Running fontforge to fix svg outline directions!")
+
+def files(path):
+    for file in os.listdir(path):
+        if os.path.isfile(os.path.join(path, file)):
+            yield file
+
+# refer to https://fontforge.org/docs/scripting/python/fontforge.html for documentation
+# inspiration from https://github.com/FontCustom/fontcustom/blob/master/lib/fontcustom/scripts/generate.py
+
+font = fontforge.font()
+for file in files("./icons-outlined"):
+    print (f"Correcting outline for {file}")
+    glyph = font.createChar(123, file)
+    glyph.importOutlines("./icons-outlined/" + file)
+    glyph.correctDirection()
+    glyph.export("./icons-outlined/" + file)
+    glyph.clear()
+    
+
+print ("Finished fixing svg outline directions!")