1 files changed, 99 insertions, 0 deletions
diff --git a/src/silfont/scripts/psfwoffit.py b/src/silfont/scripts/psfwoffit.py
new file mode 100644
index 0000000..286133a
--- /dev/null
+++ b/src/silfont/scripts/psfwoffit.py
@@ -0,0 +1,99 @@
+#!/usr/bin/env python3
+__doc__ = 'Convert font between ttf, woff, woff2'
+__url__ = 'https://github.com/silnrsi/pysilfont'
+__copyright__ = 'Copyright (c) 2021 SIL International (https://www.sil.org)'
+__license__ = 'Released under the MIT License (https://opensource.org/licenses/MIT)'
+__author__ = 'Bob Hallissy'
+
+from silfont.core import execute
+from fontTools.ttLib import TTFont
+from fontTools.ttLib.sfnt import WOFFFlavorData
+from fontTools.ttLib.woff2 import WOFF2FlavorData
+import os.path
+
+argspec = [
+    ('infont', {'help': 'Source font file (can be ttf, woff, or woff2)'}, {}),
+    ('-m', '--metadata', {'help': 'file containing XML WOFF metadata', 'default': None}, {}),
+    ('--privatedata', {'help': 'file containing WOFF privatedata', 'default': None}, {}),
+    ('-v', '--version', {'help': 'woff font version number in major.minor', 'default': None}, {}),
+    ('--ttf',   {'help': 'name of ttf file to be written',   'nargs': '?', 'default': None, 'const': '-'}, {}),
+    ('--woff',  {'help': 'name of woff file to be written',  'nargs': '?', 'default': None, 'const': '-'}, {}),
+    ('--woff2', {'help': 'name of woff2 file to be written', 'nargs': '?', 'default': None, 'const': '-'}, {}),
+    ('-l', '--log', {'help': 'Log file'}, {'type': 'outfile', 'def': '_woffit.log'})]
+
+def doit(args):
+    logger = args.logger
+    infont = args.infont
+    font = TTFont(args.infont)
+    defaultpath = os.path.splitext(infont)[0]
+    inFlavor = font.flavor or 'ttf'
+    logger.log(f'input font {infont} is a {inFlavor}', 'I')
+
+    # Read & parse version, if provided
+    flavorData = WOFFFlavorData()  # Initializes all fields to None
+
+    if args.version:
+        try:
+            version = float(args.version)
+            if version < 0:
+                raise ValueError('version cannot be negative')
+            flavorData.majorVersion, flavorData.minorVersion = map(int, format(version, '.3f').split('.'))
+        except:
+            logger.log(f'invalid version syntax "{args.version}": should be MM.mmm', 'S')
+    else:
+        try:
+            flavorData.majorVersion = font.flavorData.majorVersion
+            flavorData.minorVersion = font.flavorData.minorVersion
+        except:
+            # Pull version from head table
+            head = font['head']
+            flavorData.majorVersion, flavorData.minorVersion =map(int, format(head.fontRevision, '.3f').split('.'))
+
+    # Read metadata if provided, else get value from input font
+    if args.metadata:
+        try:
+            with open(args.metadata, 'rb') as f:
+                flavorData.metaData = f.read()
+        except:
+            logger.log(f'Unable to read file "{args.metadata}"', 'S')
+    elif inFlavor != 'ttf':
+        flavorData.metaData = font.flavorData.metaData
+
+    # Same process for private data
+    if args.privatedata:
+        try:
+            with open(args.privatedata, 'rb') as f:
+                flavorData.privData = f.read()
+        except:
+            logger.log(f'Unable to read file "{args.privatedata}"', 'S')
+    elif inFlavor != 'ttf':
+        flavorData.privData = font.flavorData.privData
+
+    if args.woff:
+        font.flavor = 'woff'
+        font.flavorData = flavorData
+        fname =  f'{defaultpath}.{font.flavor}' if args.woff2 == '-' else args.woff
+        logger.log(f'Writing {font.flavor} font to "{fname}"', 'P')
+        font.save(fname)
+
+    if args.woff2:
+        font.flavor = 'woff2'
+        font.flavorData = WOFF2FlavorData(data=flavorData)
+        fname =  f'{defaultpath}.{font.flavor}' if args.woff2 == '-' else args.woff2
+        logger.log(f'Writing {font.flavor} font to "{fname}"', 'P')
+        font.save(fname)
+
+    if args.ttf:
+        font.flavor = None
+        font.flavorData = None
+        fname =  f'{defaultpath}.ttf' if args.ttf == '-' else args.ttf
+        logger.log(f'Writing ttf font to "{fname}"', 'P')
+        font.save(fname)
+
+    font.close()
+
+def cmd() : execute('FT',doit, argspec)
+if __name__ == "__main__": cmd()
+
+
+