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squoosh/lib/as-text-plugin.js
Jake Archibald 853a26ba26 Inlining logo SVG
2021-09-22 14:46:29 +01:00

39 lines
1.3 KiB
JavaScript

/**
* Copyright 2020 Google Inc. All Rights Reserved.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import { promises as fs } from 'fs';
const prefix = 'as-text:';
export default function dataURLPlugin() {
return {
name: 'as-text-plugin',
async resolveId(id, importer) {
if (!id.startsWith(prefix)) return;
const realId = id.slice(prefix.length);
const resolveResult = await this.resolve(realId, importer);
if (!resolveResult) throw Error(`Cannot find ${realId} from ${importer}`);
return prefix + resolveResult.id;
},
async load(id) {
if (!id.startsWith(prefix)) return;
const realId = id.slice(prefix.length);
this.addWatchFile(realId);
const source = await fs.readFile(realId, { encoding: 'utf-8' });
return `export default ${JSON.stringify(source)}`;
},
};
}