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from fontTools.ttLib import TTFont
from fontTools.varLib.instancer.names import _fontVersion, NameID
import logging
import re
from bumpversion.version_part import Version, VersionPart
logger = logging.getLogger(__name__)
class SFNTHandler:
def applies_to(self, file):
return file.endswith((".ttf", ".otf", ".woff", ".woff2"))
def current_version(self, file):
font = TTFont(file)
current = _fontVersion(font)
major, minor = current.split(".")
return Version(
{
"major": VersionPart(str(major or 0)),
"minor": VersionPart(str(minor or 0)),
}
)
def set_version(self, file, new_version):
font = TTFont(file)
minor = new_version['minor'].value
minor = minor.zfill(3) if int(minor) < 10 else minor
major = new_version['major'].value
version_string = f"{major}.{minor}"
font["head"].fontRevision = float(version_string)
current_version = _fontVersion(font)
nametbl = font["name"]
for rec in nametbl.names:
if rec.nameID not in [NameID.VERSION_STRING, NameID.UNIQUE_FONT_IDENTIFIER]:
logger.debug(
f"Skipping ({rec.nameID}, {rec.platformID}, {rec.platEncID}, {rec.langID}): "
f"{rec.toUnicode()}"
)
continue
new_string = re.sub(current_version, version_string, rec.toUnicode())
logger.info(
f"Updating ({rec.nameID}, {rec.platformID}, {rec.platEncID}, {rec.langID}): "
f"{rec.toUnicode()} --> {new_string}"
)
nametbl.setName(new_string, rec.nameID, rec.platformID, rec.platEncID, rec.langID)
logger.info(f"Saving file {file}")
font.save(file)
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