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index.js
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/**
* @file fontmin
* @author junmer
*/
/* eslint-env node */
import combine from 'stream-combiner';
import concat from 'concat-stream';
import { EventEmitter } from 'events';
import { inherits } from 'util';
import * as bufferToVinyl from 'buffer-to-vinyl';
import vfs from 'vinyl-fs';
import * as util from './lib/util.js';
import mime from './lib/mime-types.js';
import glyph from './plugins/glyph.js';
import ttf2eot from './plugins/ttf2eot.js';
import ttf2woff from './plugins/ttf2woff.js';
import ttf2woff2 from './plugins/ttf2woff2.js';
import ttf2svg from './plugins/ttf2svg.js';
import css from './plugins/css.js';
import svg2ttf from './plugins/svg2ttf.js';
import svgs2ttf from './plugins/svgs2ttf.js';
import otf2ttf from './plugins/otf2ttf.js';
/**
* Initialize Fontmin
*
* @constructor
* @api public
*/
function Fontmin() {
if (!(this instanceof Fontmin)) {
return new Fontmin();
}
EventEmitter.call(this);
this.streams = [];
}
/**
* Inherit from `EventEmitter`
* @type {Class}
*/
inherits(Fontmin, EventEmitter);
/**
* Get or set the source files
*
* @param {Array|Buffer|string} file files to be optimized
* @return {Object} fontmin
* @api public
*/
Fontmin.prototype.src = function (file) {
if (!arguments.length) {
return this._src;
}
this._src = arguments;
return this;
};
/**
* Get or set the destination folder
*
* @param {string} dir folder to written
* @return {Object} fontmin
* @api public
*/
Fontmin.prototype.dest = function (dir) {
if (!arguments.length) {
return this._dest;
}
this._dest = arguments;
return this;
};
/**
* Add a plugin to the middleware stack
*
* @param {Function} plugin plugin
* @return {Object} fontmin
* @api public
*/
Fontmin.prototype.use = function (plugin) {
this.streams.push(typeof plugin === 'function' ? plugin() : plugin);
return this;
};
/**
* Optimize files
*
* @param {Function} cb callback
* @return {Stream} file stream
* @api public
*/
Fontmin.prototype.run = function (cb) {
cb = cb || function () {};
var stream = this.createStream();
stream.on('error', cb);
stream.pipe(concat(cb.bind(null, null)));
return stream;
};
/**
* run Optimize files with return Promise
*
* @return {Array<Buffer>} file result
* @api public
*/
Fontmin.prototype.runAsync = function () {
return new Promise((resolve, reject) => {
var stream = this.createStream();
stream.on('error', reject);
stream.pipe(concat(resolve));
});
};
/**
* Create stream
*
* @return {Stream} file stream
* @api private
*/
Fontmin.prototype.createStream = function () {
this.streams.unshift(this.getFiles());
if (this.streams.length === 1) {
this.use(Fontmin.otf2ttf());
this.use(Fontmin.ttf2eot());
this.use(Fontmin.ttf2woff());
this.use(Fontmin.ttf2woff2());
this.use(Fontmin.ttf2svg());
this.use(Fontmin.css());
}
if (this.dest()) {
this.streams.push(
vfs.dest.apply(vfs, this.dest())
);
}
return combine(this.streams);
};
/**
* Get files
*
* @return {Stream} file stream
* @api private
*/
Fontmin.prototype.getFiles = function () {
if (Buffer.isBuffer(this._src[0])) {
return bufferToVinyl.stream(this._src[0]);
}
var [src, options] = this.src();
return vfs.src(src, {encoding: false, ...options});
};
/**
* plugins
*
* @type {Array}
*/
Fontmin.plugins = [
'glyph',
'ttf2eot',
'ttf2woff',
'ttf2woff2',
'ttf2svg',
'css',
'svg2ttf',
'svgs2ttf',
'otf2ttf'
];
// export pkged plugins
Fontmin.glyph = glyph;
Fontmin.ttf2eot = ttf2eot;
Fontmin.ttf2woff = ttf2woff;
Fontmin.ttf2woff2 = ttf2woff2;
Fontmin.ttf2svg = ttf2svg;
Fontmin.css = css;
Fontmin.svg2ttf = svg2ttf;
Fontmin.svgs2ttf = svgs2ttf;
Fontmin.otf2ttf = otf2ttf;
/**
* Module exports
*/
export { util, mime };
export default Fontmin;
Fontmin.util = util;
Fontmin.mime = mime;