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polymer-css-build gulp wrapper
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| /** | |
| @license | |
| Copyright (c) 2016 The Polymer Project Authors. All rights reserved. | |
| This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt | |
| The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt | |
| The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt | |
| Code distributed by Google as part of the polymer project is also | |
| subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt | |
| */ | |
| const polycss = require('./'); | |
| const Transform = require('stream').Transform; | |
| class PolymerCssBuildTransform extends Transform { | |
| constructor(options){ | |
| super({objectMode: true}); | |
| this.options = options; | |
| } | |
| _transform(file, encoding, callback) { | |
| if (file.isNull()) { | |
| return callback(null, file); | |
| } | |
| if (file.isStream()) { | |
| return callback('polymer-css-build does not support streams, sorry'); | |
| } | |
| if (file.isBuffer()) { | |
| polycss([ | |
| { | |
| url: file.path, | |
| content: file.content.toString('utf-8') | |
| } | |
| ], this.options).then(docs => { | |
| let content = docs[0].content; | |
| file.content = new Buffer(content); | |
| callback(null, file); | |
| }) | |
| .catch(err => { | |
| callback(err); | |
| }); | |
| } | |
| } | |
| } | |
| module.exports = (options) => new PolymerCssBuildTransform(options); |
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