deps: upgrade npm to 6.1.0

PR-URL: https://github.com/nodejs/node/pull/20190
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Tiancheng "Timothy" Gu <timothygu99@gmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>

1 files changed, 51 insertions, 0 deletions

diff --git a/deps/npm/node_modules/get-stream/buffer-stream.js b/deps/npm/node_modules/get-stream/buffer-stream.js
new file mode 100644
index 0000000000..ae45d3d9e7
--- /dev/null
+++ b/deps/npm/node_modules/get-stream/buffer-stream.js
@@ -0,0 +1,51 @@
+'use strict';
+const PassThrough = require('stream').PassThrough;
+
+module.exports = opts => {
+	opts = Object.assign({}, opts);
+
+	const array = opts.array;
+	let encoding = opts.encoding;
+	const buffer = encoding === 'buffer';
+	let objectMode = false;
+
+	if (array) {
+		objectMode = !(encoding || buffer);
+	} else {
+		encoding = encoding || 'utf8';
+	}
+
+	if (buffer) {
+		encoding = null;
+	}
+
+	let len = 0;
+	const ret = [];
+	const stream = new PassThrough({objectMode});
+
+	if (encoding) {
+		stream.setEncoding(encoding);
+	}
+
+	stream.on('data', chunk => {
+		ret.push(chunk);
+
+		if (objectMode) {
+			len = ret.length;
+		} else {
+			len += chunk.length;
+		}
+	});
+
+	stream.getBufferedValue = () => {
+		if (array) {
+			return ret;
+		}
+
+		return buffer ? Buffer.concat(ret, len) : ret.join('');
+	};
+
+	stream.getBufferedLength = () => len;
+
+	return stream;
+};