@salesforce/core
Version:
Core libraries to interact with SFDX projects, orgs, and APIs.
72 lines • 2.59 kB
JavaScript
;
/*
* Copyright (c) 2021, salesforce.com, inc.
* All rights reserved.
* Licensed under the BSD 3-Clause license.
* For full license text, see LICENSE.txt file in the repo root or https://opensource.org/licenses/BSD-3-Clause
*/
Object.defineProperty(exports, "__esModule", { value: true });
exports.ZipWriter = void 0;
const fs_1 = require("fs");
const stream_1 = require("stream");
const util_1 = require("util");
const archiver_1 = require("archiver");
const pipeline = (0, util_1.promisify)(stream_1.pipeline);
class ZipWriter extends stream_1.Writable {
constructor(rootDestination) {
super({ objectMode: true });
this.rootDestination = rootDestination;
// compression-/speed+ (0)<---(3)---------->(9) compression+/speed-
// 3 appears to be a decent balance of compression and speed. It felt like
// higher values = diminishing returns on compression and made conversion slower
this.zip = (0, archiver_1.create)('zip', { zlib: { level: 3 } });
this.buffers = [];
void pipeline(this.zip, this.getOutputStream());
}
async addToStore(contents, path) {
this.zip.append(contents, { name: path });
return Promise.resolve();
}
async finalize() {
await this.zip.finalize();
await this.getInputBuffer();
}
getDestinationPath() {
return this.rootDestination;
}
getOutputStream() {
if (this.rootDestination) {
return (0, fs_1.createWriteStream)(this.rootDestination);
}
else {
const bufferWritable = new stream_1.Writable();
// eslint-disable-next-line no-underscore-dangle
bufferWritable._write = (chunk, encoding, cb) => {
this.buffers.push(chunk);
cb();
};
return bufferWritable;
}
}
async getInputBuffer() {
if (this.rootDestination) {
const inputStream = (0, fs_1.createReadStream)(this.rootDestination);
return new Promise((resolve, reject) => {
inputStream.on('data', (chunk) => {
this.buffers.push(chunk);
});
inputStream.once('end', () => {
return resolve();
});
inputStream.once('error', (error) => {
return reject(error);
});
});
}
}
get buffer() {
return Buffer.concat(this.buffers);
}
}
exports.ZipWriter = ZipWriter;
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