blob: d67769c1df0badd881fce317c8a767bf5a8304d4 (
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'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;
};
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