@sctg/fontminify
Version:
Minify font seamlessly, font subsetter, webfont (eot, woff, svg) converter.
67 lines (66 loc) • 1.54 kB
JavaScript
/**
* @file ttf2eot
* @author junmer eltorio
*/
/* eslint-env node */
import isTtf from 'is-ttf';
import through from 'through2';
import fe from 'fonteditor-core';
import { b2ab } from 'b3b';
import { ab2b } from 'b3b';
import replaceExt from 'replace-ext';
import _ from 'lodash';
const ttf2eot = fe.ttf2eot;
function compileTtf(buffer, cb) {
let output;
try {
output = ab2b(ttf2eot(b2ab(buffer)));
}
catch (ex) {
cb(ex);
}
output && cb(null, output);
}
/**
* ttf2eot fontmin plugin
*
* @param {Object} opts opts
* @return {Object} stream.Transform instance
* @api public
*/
export default opts => {
opts = _.extend({ clone: true }, opts);
return through.ctor({
objectMode: true
}, function (file, enc, cb) {
// check null
if (file.isNull()) {
cb(null, file);
return;
}
// check stream
if (file.isStream()) {
cb(new Error('Streaming is not supported'));
return;
}
// check ttf
if (!isTtf(file.contents)) {
cb(null, file);
return;
}
// clone
if (opts.clone) {
this.push(file.clone(false));
}
// replace ext
file.path = replaceExt(file.path, '.eot');
compileTtf(file.contents, (err, buffer) => {
if (err) {
cb(err);
return;
}
file.contents = buffer;
cb(null, file);
});
});
};