From 510260a1f4eccb92977010b73d227b7f1c7d68a7 Mon Sep 17 00:00:00 2001
From: David Mitchell <dmitchell@logos.com>
Date: Thu, 29 Dec 2016 11:30:39 -0800
Subject: [PATCH] Normalize UNC paths correctly.

---
 lib/normalize.js         | 7 ++++++-
 test/MemoryFileSystem.js | 1 +
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/lib/normalize.js b/lib/normalize.js
index aa8a013..48659fe 100644
--- a/lib/normalize.js
+++ b/lib/normalize.js
@@ -10,7 +10,12 @@ module.exports = function normalize(path) {
 			result.push(part);
 			absolutePathStart = 2;
 		} else if(sep) {
-			result.push(part[0]);
+			// UNC paths on Windows begin with a double backslash.
+			if (i === 1 && parts[0].length === 0 && part === "\\\\") {
+				result.push(part);
+			} else {
+				result.push(part[0]);
+			}
 		} else if(part === "..") {
 			switch(result.length) {
 				case 0:
diff --git a/test/MemoryFileSystem.js b/test/MemoryFileSystem.js
index af527d7..573c8ed 100644
--- a/test/MemoryFileSystem.js
+++ b/test/MemoryFileSystem.js
@@ -355,6 +355,7 @@ describe("normalize", function() {
 		fs.normalize("C:\\a\\b\\\c\\..\\..").should.be.eql("C:\\a");
 		fs.normalize("C:\\a\\b\\d\\..\\c\\..\\..").should.be.eql("C:\\a");
 		fs.normalize("C:\\a\\b\\d\\\\.\\\\.\\c\\.\\..").should.be.eql("C:\\a\\b\\d");
+		fs.normalize("\\\\remote-computer\\c$\\file").should.be.eql("\\\\remote-computer\\c$\\file");
 	});
 });
 describe("pathToArray", function() {