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path: root/misc/tools/postprocess_instance_ufo.py
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import sys
import defcon


# See https://github.com/rsms/inter/issues/508
# TODO: Remove when https://github.com/googlefonts/glyphsLib/issues/821 is fixed
def fix_fractional_advance_width(ufo):
  for g in ufo:
    w = int(round(g.width))
    if str(g.width) != str(w):
      # set twice to work around bug or weird behavior in defcon.
      # If we don't do this, then fractional widths with .0 fraction are
      # not updated to integer values.
      g.width = w + 1
      g.width = w


def main(argv):
  ufo_file = argv[1]
  ufo = defcon.Font(ufo_file)
  fix_fractional_advance_width(ufo)
  ufo.save(ufo_file)


if __name__ == '__main__':
  main(sys.argv)