From 746d527b8f4bd6b5bc721c51052af98d11fc27c0 Mon Sep 17 00:00:00 2001
From: Rasmus Andersson <rasmus@notion.se>
Date: Fri, 28 Sep 2018 12:45:13 -0700
Subject: fontbuild: strip non-primary layers when generating UFOs

---
 misc/fontbuild | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'misc/fontbuild')

diff --git a/misc/fontbuild b/misc/fontbuild
index 957358680..cb802c655 100755
--- a/misc/fontbuild
+++ b/misc/fontbuild
@@ -499,6 +499,16 @@ class Main(object):
       source.font.lib.clear()
       source.font.lib.update(lib)
 
+      # remove all but the primary (default) layer
+      layers = source.font.layers
+      defaultLayer = layers.defaultLayer
+      delLayerNames = set()
+      for layer in layers:
+        if layer != defaultLayer:
+          delLayerNames.add(layer.name)
+      for layerName in delLayerNames:
+        del layers[layerName]
+
       # clear anchors
       for g in source.font:
         g.clearAnchors()
-- 
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