38 lines
1.0 KiB
TypeScript
38 lines
1.0 KiB
TypeScript
import { ReadStream } from 'fs';
|
|
|
|
function extend(who: any, from: any, overwrite = true) { // eslint-disable-line @typescript-eslint/no-explicit-any
|
|
const ownProps = Object.getOwnPropertyNames(Object.getPrototypeOf(from)).concat(
|
|
Object.keys(from)
|
|
);
|
|
ownProps.forEach(prop => {
|
|
if (prop === 'constructor' || from[prop] === undefined) return;
|
|
if (who[prop] && overwrite) {
|
|
who[`_${prop}`] = who[prop];
|
|
}
|
|
if (typeof from[prop] === 'function') who[prop] = from[prop].bind(who);
|
|
else who[prop] = from[prop];
|
|
});
|
|
}
|
|
|
|
function stob(stream: ReadStream): Promise<Buffer> {
|
|
return new Promise(resolve => {
|
|
const buffers: Buffer[] = [];
|
|
stream.on('data', buffers.push.bind(buffers));
|
|
|
|
stream.on('end', () => {
|
|
switch (buffers.length) {
|
|
case 0:
|
|
resolve(Buffer.allocUnsafe(0));
|
|
break;
|
|
case 1:
|
|
resolve(buffers[0]);
|
|
break;
|
|
default:
|
|
resolve(Buffer.concat(buffers));
|
|
}
|
|
});
|
|
});
|
|
}
|
|
|
|
export { extend, stob };
|