From a342f35316a921d39e204e3558d55e8013f94e09 Mon Sep 17 00:00:00 2001
From: Tomasz Heimowski <tomasz.heimowski@outlook.com>
Date: Thu, 30 Apr 2015 21:28:48 +0200
Subject: [PATCH] convert from nuget - do not duplicate sources

---
 src/Paket.Core/NugetConvert.fs | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/Paket.Core/NugetConvert.fs b/src/Paket.Core/NugetConvert.fs
index 308e68983f..38ca056a24 100644
--- a/src/Paket.Core/NugetConvert.fs
+++ b/src/Paket.Core/NugetConvert.fs
@@ -127,7 +127,11 @@ type NugetConfig =
             |> List.filter (fun (key,_) -> Set.contains key disabledSources |> not)
             |> List.map (fun (key,value) -> value, getAuth key)
 
-        { PackageSources = if clearSources then sources else nugetConfig.PackageSources @ sources
+        { PackageSources = if clearSources then sources
+                           else 
+                               nugetConfig.PackageSources @ sources
+                               |> Seq.distinct
+                               |> List.ofSeq
           PackageRestoreEnabled = 
             match configNode |> getNode "packageRestore" |> Option.bind (tryGetValue "enabled") with
             | Some value -> bool.Parse(value)