From cb110804682b93cb20d8f5b8e41a90bcfe3d93f0 Mon Sep 17 00:00:00 2001
From: Patrick Stadler <patrick.stadler@gmail.com>
Date: Sat, 14 Dec 2013 14:10:57 +0100
Subject: [PATCH] CaskAlreadyInstalledError exits with 0

---
 lib/cask/cli.rb | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/lib/cask/cli.rb b/lib/cask/cli.rb
index 41329db8f..f6ed97175 100644
--- a/lib/cask/cli.rb
+++ b/lib/cask/cli.rb
@@ -33,6 +33,10 @@ class Cask::CLI
     rest = process_options(rest)
     Cask.init
     lookup_command(command).run(*rest)
+  rescue CaskAlreadyInstalledError => e
+    opoo e
+    $stderr.puts e.backtrace if @debug
+    exit 0
   rescue CaskError => e
     onoe e
     $stderr.puts e.backtrace if @debug