From bf367148a45bfc56142db4d4fc32f137e1056f60 Mon Sep 17 00:00:00 2001
From: Carl Lerche <carllerche@mac.com>
Date: Thu, 15 Jul 2010 10:28:56 -0700
Subject: Don't claim to be deleting gems from vendor/cache when nothing
 actually happens

---
 lib/bundler/runtime.rb  | 21 +++++++++++++++------
 spec/cache/gems_spec.rb | 12 +++++++++++-
 spec/cache/path_spec.rb |  4 ++--
 3 files changed, 28 insertions(+), 9 deletions(-)

diff --git a/lib/bundler/runtime.rb b/lib/bundler/runtime.rb
index efcee1c5b6..a3cbac1cf6 100644
--- a/lib/bundler/runtime.rb
+++ b/lib/bundler/runtime.rb
@@ -86,13 +86,22 @@ module Bundler
       FileUtils.mkdir_p(cache_path)
 
       resolve = @definition.resolve
+      cached  = Dir["#{cache_path}/*.gem"]
 
-      Bundler.ui.info "Removing outdated .gem files from vendor/cache"
-      Pathname.glob(cache_path.join("*.gem").to_s).each do |gem_path|
-        cached  = Gem::Format.from_file_by_path(gem_path).spec
-        unless resolve.any?{|s| s.name == cached.name && s.version == cached.version }
-          Bundler.ui.info "  * #{File.basename(gem_path)}"
-          gem_path.rmtree
+      cached = cached.delete_if do |path|
+        spec = Gem::Format.from_file_by_path(path).spec
+
+        resolve.any? do |s|
+          s.name == spec.name && s.version == spec.version
+        end
+      end
+
+      if cached.any?
+        Bundler.ui.info "Removing outdated .gem files from vendor/cache"
+
+        cached.each do |path|
+          Bundler.ui.info "  * #{File.basename(path)}"
+          File.delete(path)
         end
       end
     end
diff --git a/spec/cache/gems_spec.rb b/spec/cache/gems_spec.rb
index 8f80b6e5cc..088a34709d 100644
--- a/spec/cache/gems_spec.rb
+++ b/spec/cache/gems_spec.rb
@@ -157,6 +157,16 @@ describe "bundle cache" do
       File.open(bundled_app("vendor/cache/bar"), 'w'){|f| f.write("not a gem") }
       bundle :cache
     end
+
+    it "does not say that it is removing gems when it isn't actually doing so" do
+      install_gemfile <<-G
+        source "file://#{gem_repo1}"
+        gem "rack"
+      G
+      bundle "cache"
+      bundle "install"
+      out.should_not =~ /removing/i
+    end
   end
 
-end
\ No newline at end of file
+end
diff --git a/spec/cache/path_spec.rb b/spec/cache/path_spec.rb
index 10c1e77716..6a78ac3b5e 100644
--- a/spec/cache/path_spec.rb
+++ b/spec/cache/path_spec.rb
@@ -10,7 +10,7 @@ describe "bundle cache" do
       G
 
       bundle "cache"
-      out.should == "Updating .gem files in vendor/cache\nRemoving outdated .gem files from vendor/cache"
+      out.should == "Updating .gem files in vendor/cache"
     end
 
     it "warns when the path is outside of the bundle" do
@@ -24,4 +24,4 @@ describe "bundle cache" do
       out.should include("foo at `#{lib_path("foo-1.0")}` will not be cached")
     end
   end
-end
\ No newline at end of file
+end
-- 
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