From a198ae39cc26ebb86b6c4c1032c1f520eb6d5ba4 Mon Sep 17 00:00:00 2001
From: Troy Dai <troy.dai@outlook.com>
Date: Tue, 13 Oct 2015 15:01:16 -0700
Subject: [PATCH] Split the DNX_HOME environment variable when it is a
 semi-colon separated list

---
 .../Program.cs                                      | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/tools/Microsoft.AspNet.Server.Kestrel.LibuvCopier/Program.cs b/tools/Microsoft.AspNet.Server.Kestrel.LibuvCopier/Program.cs
index db3dc207d8..9d9c1f3280 100644
--- a/tools/Microsoft.AspNet.Server.Kestrel.LibuvCopier/Program.cs
+++ b/tools/Microsoft.AspNet.Server.Kestrel.LibuvCopier/Program.cs
@@ -25,10 +25,19 @@ namespace Microsoft.AspNet.Server.Kestrel.LibuvCopier
                 {
                     var dnxFolder = Environment.GetEnvironmentVariable("DNX_HOME");
 
-                    if (string.IsNullOrEmpty(dnxFolder))
+                    var firstCandidate = dnxFolder?.Split(';')
+                                                  ?.Select(path => Environment.ExpandEnvironmentVariables(path))
+                                                  ?.Where(path => Directory.Exists(path))
+                                                  ?.FirstOrDefault();
+
+                    if (string.IsNullOrEmpty(firstCandidate))
                     {
                         dnxFolder = Path.Combine(GetHome(), ".dnx");
                     }
+                    else
+                    {
+                        dnxFolder = firstCandidate;
+                    }
 
                     packagesFolder = Path.Combine(dnxFolder, "packages");
                 }
@@ -50,7 +59,7 @@ namespace Microsoft.AspNet.Server.Kestrel.LibuvCopier
                     }
                 }
             }
-            catch(Exception ex)
+            catch (Exception ex)
             {
                 Console.WriteLine(ex);
                 throw;