From 95bbd8ef0274285d7d778ec059cbccdd7e402cb5 Mon Sep 17 00:00:00 2001
From: Alex Dunn <dunn.alex@gmail.com>
Date: Mon, 9 Nov 2015 07:25:26 -0800
Subject: [PATCH] cmd/install: check before tapping

Changes introduced in dfdc570abcd7c19a7b385c2fe8c6b26b12bca646 were
causing installations using fully-qualified formula names to fail.
---
 Library/Homebrew/cmd/install.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Library/Homebrew/cmd/install.rb b/Library/Homebrew/cmd/install.rb
index 755d944dc5..a1e13d9e68 100644
--- a/Library/Homebrew/cmd/install.rb
+++ b/Library/Homebrew/cmd/install.rb
@@ -19,7 +19,7 @@ module Homebrew
         user = $1
         repo = $2.sub(/^homebrew-/, "")
         tap = Tap.fetch(user, repo)
-        tap.install
+        tap.install unless tap.installed?
       end
     end unless ARGV.force?