WIP - add extractor, generate snippet_data

node_modules/decompress-targz/index.js

@@ -0,0 +1,26 @@
+'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;
+};