From d25c8e29d43992e6fed009d792484884ebf166b9 Mon Sep 17 00:00:00 2001
From: Dominik Picheta <dominikpicheta@gmail.com>
Date: Sun, 1 Jan 2017 17:14:12 +0000
Subject: [PATCH] Prevent crash when symlink already exists in $nimbleDir/bin.

---
 src/nimble.nim | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/nimble.nim b/src/nimble.nim
index 486490d..5b84179 100644
--- a/src/nimble.nim
+++ b/src/nimble.nim
@@ -467,6 +467,10 @@ proc installFromDir(dir: string, requestedVer: VersionRange, options: Options,
       when defined(unix):
         display("Creating", "symlink: $1 -> $2" %
                 [pkgDestDir / bin, binDir / cleanBin], priority = MediumPriority)
+        if existsFile(binDir / cleanBin):
+          display("Warning:", "Symlink already exists in $1. Replacing." % binDir,
+                  Warning, HighPriority)
+          removeFile(binDir / cleanBin)
         createSymlink(pkgDestDir / bin, binDir / cleanBin)
         binariesInstalled.incl(cleanBin)
       elif defined(windows):