1 files changed, 59 insertions, 0 deletions
diff --git a/node_modules/decompress-tar/index.js b/node_modules/decompress-tar/index.js
new file mode 100644
index 0000000..721b48c
--- /dev/null
+++ b/node_modules/decompress-tar/index.js
@@ -0,0 +1,59 @@
+'use strict';
+const fileType = require('file-type');
+const isStream = require('is-stream');
+const tarStream = require('tar-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 !== 'tar')) {
+		return Promise.resolve([]);
+	}
+
+	const extract = tarStream.extract();
+	const files = [];
+
+	extract.on('entry', (header, stream, cb) => {
+		const chunk = [];
+
+		stream.on('data', data => chunk.push(data));
+		stream.on('end', () => {
+			const file = {
+				data: Buffer.concat(chunk),
+				mode: header.mode,
+				mtime: header.mtime,
+				path: header.name,
+				type: header.type
+			};
+
+			if (header.type === 'symlink' || header.type === 'link') {
+				file.linkname = header.linkname;
+			}
+
+			files.push(file);
+			cb();
+		});
+	});
+
+	const promise = new Promise((resolve, reject) => {
+		if (!Buffer.isBuffer(input)) {
+			input.on('error', reject);
+		}
+
+		extract.on('finish', () => resolve(files));
+		extract.on('error', reject);
+	});
+
+	extract.then = promise.then.bind(promise);
+	extract.catch = promise.catch.bind(promise);
+
+	if (Buffer.isBuffer(input)) {
+		extract.end(input);
+	} else {
+		input.pipe(extract);
+	}
+
+	return extract;
+};