mirror of
https://github.com/balena-io/balena-cli.git
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36 lines
1.1 KiB
TypeScript
36 lines
1.1 KiB
TypeScript
/**
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* @license
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* Copyright 2019 Balena Ltd.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import fs = require('fs');
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export function buffer(
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stream: NodeJS.ReadableStream,
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bufferFile: string,
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): Promise<NodeJS.ReadableStream> {
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const fileWriteStream = fs.createWriteStream(bufferFile);
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return new Promise(function (resolve, reject) {
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stream.on('error', reject).on('end', resolve).pipe(fileWriteStream);
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}).then(
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() =>
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new Promise(function (resolve, reject) {
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const fstream = fs.createReadStream(bufferFile);
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fstream.on('open', () => resolve(fstream)).on('error', reject);
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}),
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);
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}
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