27 lines
655 B
JavaScript
27 lines
655 B
JavaScript
|
'use strict';
|
||
|
|
const zlib = require('zlib');
|
||
|
|
const decompressTar = require('decompress-tar');
|
||
|
|
const fileType = require('file-type');
|
||
|
|
const isStream = require('is-stream');
|
||
|
|
|
||
|
|
module.exports = () => input => {
|
||
|
|
if (!Buffer.isBuffer(input) && !isStream(input)) {
|
||
|
|
return Promise.reject(new TypeError(`Expected a Buffer or Stream, got ${typeof input}`));
|
||
|
|
}
|
||
|
|
|
||
|
|
if (Buffer.isBuffer(input) && (!fileType(input) || fileType(input).ext !== 'gz')) {
|
||
|
|
return Promise.resolve([]);
|
||
|
|
}
|
||
|
|
|
||
|
|
const unzip = zlib.createGunzip();
|
||
|
|
const result = decompressTar()(unzip);
|
||
|
|
|
||
|
|
if (Buffer.isBuffer(input)) {
|
||
|
|
unzip.end(input);
|
||
|
|
} else {
|
||
|
|
input.pipe(unzip);
|
||
|
|
}
|
||
|
|
|
||
|
|
return result;
|
||
|
|
};
|