From df043e60d8f1480845f6c10db21dcfa3b6088030 Mon Sep 17 00:00:00 2001
From: brainopia <brainopia@evilmartians.com>
Date: Sun, 22 Jan 2012 08:57:09 +0400
Subject: [PATCH] Simplify Foreman::Process#with_environment

---
 lib/foreman/process.rb | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/lib/foreman/process.rb b/lib/foreman/process.rb
index ac929fa..e37bc17 100644
--- a/lib/foreman/process.rb
+++ b/lib/foreman/process.rb
@@ -59,12 +59,11 @@ private
   end
 
   def with_environment(environment)
-    old_env = ENV.each_pair.inject({}) { |h,(k,v)| h.update(k => v) }
-    environment.each { |k,v| ENV[k] = v }
-    ret = yield
-    ENV.clear
-    old_env.each { |k,v| ENV[k] = v}
-    ret
+    original = ENV.to_hash
+    ENV.update environment
+    yield
+  ensure
+    ENV.replace original
   end
 
 end