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- 'use strict';
- const decompressTar = require('decompress-tar');
- const fileType = require('file-type');
- const isStream = require('is-stream');
- const seekBzip = require('seek-bzip');
- const unbzip2Stream = require('unbzip2-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 !== 'bz2')) {
- return Promise.resolve([]);
- }
- if (Buffer.isBuffer(input)) {
- return decompressTar()(seekBzip.decode(input));
- }
- return decompressTar()(input.pipe(unbzip2Stream()));
- };
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