Snippets/woff2_compress: add --hmtx-trasform option; use argparse
diff --git a/Snippets/woff2_compress.py b/Snippets/woff2_compress.py
index c9905c4..23f7e79 100755
--- a/Snippets/woff2_compress.py
+++ b/Snippets/woff2_compress.py
@@ -2,39 +2,76 @@
from __future__ import print_function, division, absolute_import
from fontTools.misc.py23 import *
+from fontTools import configLogger
from fontTools.ttLib import TTFont
from fontTools.ttx import makeOutputFileName
from fontTools.ttLib.woff2 import WOFF2FlavorData
import sys
+import logging
+import argparse
+
+
+def woff2_compress(input_file, output_file, transform_tables=None):
+ logging.info("Processing %s => %s" % (input_file, output_file))
+
+ font = TTFont(input_file, recalcBBoxes=False, recalcTimestamp=False)
+ font.flavor = "woff2"
+
+ if transform_tables is not None:
+ font.flavorData = WOFF2FlavorData(transformedTables=transform_tables)
+
+ font.save(output_file, reorderTables=False)
def main(args=None):
- if args is None:
- args = sys.argv[1:]
+ parser = argparse.ArgumentParser()
- disableTransforms = False
- if "--disable-transforms" in args:
- disableTransforms = True
- args.remove("--disable-transforms")
+ parser.add_argument("input_file", metavar="INPUT_FILE")
+ parser.add_argument("-o", "--output-file", default=None)
- if len(args) < 1:
- print("One argument, the input filename, must be provided.", file=sys.stderr)
- return 1
+ transform_group = parser.add_argument_group()
+ transform_group.add_argument(
+ "--no-glyf-transform",
+ action="store_true",
+ help="Do not transform glyf (and loca) tables",
+ )
+ transform_group.add_argument(
+ "--hmtx-transform",
+ action="store_true",
+ help="Enable optional transformation for 'hmtx' table",
+ )
- filename = args[0]
- outfilename = makeOutputFileName(filename, outputDir=None, extension='.woff2')
+ logging_group = parser.add_mutually_exclusive_group(required=False)
+ logging_group.add_argument(
+ "-v", "--verbose", action="store_true", help="Run more verbosely."
+ )
+ logging_group.add_argument(
+ "-q", "--quiet", action="store_true", help="Turn verbosity off."
+ )
+ options = parser.parse_args(args)
- print("Processing %s => %s" % (filename, outfilename))
+ configLogger(
+ logger=logging.getLogger(),
+ level=("DEBUG" if options.verbose else "ERROR" if options.quiet else "INFO"),
+ )
- font = TTFont(filename, recalcBBoxes=False, recalcTimestamp=False)
- font.flavor = "woff2"
+ input_file = options.input_file
- if disableTransforms:
- # an empty tuple signals that we don't want any table to be transformed
- font.flavorData = WOFF2FlavorData(transformedTables=())
+ if options.output_file:
+ output_file = options.output_file
+ else:
+ output_file = makeOutputFileName(input_file, outputDir=None, extension=".woff2")
- font.save(outfilename, reorderTables=False)
+ if options.no_glyf_transform:
+ transform_tables = set()
+ else:
+ transform_tables = {"glyf", "loca"}
+
+ if options.hmtx_transform:
+ transform_tables.add("hmtx")
+
+ woff2_compress(input_file, output_file, transform_tables)
-if __name__ == '__main__':
+if __name__ == "__main__":
sys.exit(main())
