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# Experimental for local testing.
# Usage:
# python make_kit.py some_font.ttf some_other_font.ttf
import contextlib
import os
import sys
from fontTools import subset
from fontTools import ttLib
def makeKit(font_path):
# put the result into a directory named file_name.kit
dest_dir = os.path.splitext(font_path)[0] + '.kit'
if os.path.isdir(dest_dir):
print 'FAILURE: dest %s already exists' % dest_dir
return False
os.makedirs(dest_dir)
print 'Making a kit for %s in %s' % (font_path, dest_dir)
# crack open the font
# equivalent pyftsubset /tmp/Lobster-Regular.ttf --unicodes='*' --obfuscate_names
options = subset.Options()
with contextlib.closing(subset.load_font(font_path, options)) as font:
unicodes = []
for t in font['cmap'].tables:
if t.isUnicode():
unicodes.extend(t.cmap.keys())
options.unicodes = unicodes
# mangle 'name' so the font can't be installed
options.obfuscate_names
# apply our subsetting, most notably trashing 'name'
subsetter = subset.Subsetter(options=options)
subsetter.populate()
# write [ot]tf, woff, and woff2 editions with 'name' mangled
font_name_noext = os.path.splitext(os.path.basename(font_path))[0]
font_ext = os.path.splitext(os.path.basename(font_path))[1]
for fmt in [font_ext, '.woff', '.woff2']:
dest_file = os.path.join(dest_dir, font_name_noext + fmt)
options.flavor = None
if fmt.startswith('.woff'):
options.flavor = fmt[1:]
print 'Writing %s' % dest_file
with open(dest_file, 'wb') as f:
subset.save_font(font, f, options)
# write a sample somewhat (no early Android, IE) bulletproof css
dest_file = os.path.join(dest_dir, 'bulletproof.css')
os2 = font['OS/2']
font_style = 'normal'
if os2.fsSelection & 1:
font_style = 'italic'
with open(dest_file, 'w') as f:
f.write("@font-face {\n")
f.write(" font-family: '%s';\n" % font_name_noext)
f.write(" font-style: %s;\n" % font_style)
f.write(" font-weight: %d;\n" % os2.usWeightClass)
f.write(" src:\n")
f.write(" url('./%s.woff2') format('woff2'),\n" % font_name_noext)
f.write(" url('./%s.woff') format('woff'),\n" % font_name_noext)
if font_ext == '.otf':
f.write(" url('./%s.otf') format('opentype')" % font_name_noext)
else:
f.write(" url('./%s.ttf') format('truetype')" % font_name_noext)
f.write(";\n")
f.write("}\n")
return True
def main():
for font_path in sys.argv[1:]:
makeKit(font_path)
if __name__ == "__main__":
# execute only if run as a script
main()
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