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import sys
import os
from fontTools.ttx import makeOutputFileName
from fontTools.ttLib import TTFont
def main(args=None):
if args is None:
args = sys.argv[1:]
if len(args) < 2:
print("usage: merge_woff_metadata.py METADATA.xml "
"INPUT.woff [OUTPUT.woff]", file=sys.stderr)
return 1
metadata_file = args[0]
with open(metadata_file, 'rb') as f:
metadata = f.read()
infile = args[1]
if len(args) > 2:
outfile = args[2]
else:
filename, ext = os.path.splitext(infile)
outfile = makeOutputFileName(filename, None, ext)
font = TTFont(infile)
if font.flavor not in ("woff", "woff2"):
print("Input file is not a WOFF or WOFF2 font", file=sys.stderr)
return 1
data = font.flavorData
# this sets the new WOFF metadata
data.metaData = metadata
font.save(outfile)
if __name__ == "__main__":
sys.exit(main())