Summarize the number of using gems

lib/bundler/cli/install.rb

@@ -105,6 +105,7 @@ def run
       Installer.install(Bundler.root, definition, options)
       Bundler.load.cache if Bundler.app_cache.exist? && options["cache"] && !Bundler.settings[:frozen]
 
+      Bundler.ui.confirm "Using #{Installer.using_gems.size} already installed gems" if Installer.using_gems.size > 0
       Bundler.ui.confirm "Bundle complete! #{dependencies_count_for(definition)}, #{gems_installed_for(definition)}."
       confirm_without_groups
 

lib/bundler/cli/update.rb

@@ -56,6 +56,7 @@ def run
         Bundler::CLI::Clean.new(options).run
       end
 
+      Bundler.ui.confirm "Using #{Installer.using_gems.size} already installed gems" if Installer.using_gems.size > 0
       Bundler.ui.confirm "Bundle updated!"
       without_groups_messages
     end

lib/bundler/installer.rb

@@ -5,10 +5,11 @@
 module Bundler
   class Installer < Environment
     class << self
-      attr_accessor :post_install_messages, :ambiguous_gems
+      attr_accessor :post_install_messages, :ambiguous_gems, :using_gems
 
       Installer.post_install_messages = {}
       Installer.ambiguous_gems = []
+      Installer.using_gems = []
     end
 
     # Begins the installation process for Bundler.

lib/bundler/source/git.rb

@@ -159,7 +159,8 @@ def specs(*)
       end
 
       def install(spec, force = false)
-        Bundler.ui.info "Using #{version_message(spec)} from #{to_s}"
+        Bundler.ui.debug "Using #{version_message(spec)} from #{to_s}"
+        Bundler::Installer.using_gems << spec
 
         if requires_checkout? && !@copied && !force
           Bundler.ui.debug "  * Checking out revision: #{ref}"

lib/bundler/source/path.rb

@@ -69,7 +69,8 @@ def name
       end
 
       def install(spec, force = false)
-        Bundler.ui.info "Using #{version_message(spec)} from #{to_s}"
+        Bundler.ui.debug "Using #{version_message(spec)} from #{to_s}"
+        Bundler::Installer.using_gems << spec
         generate_bin(spec, :disable_extensions)
         nil # no post-install message
       end

lib/bundler/source/rubygems.rb

@@ -99,7 +99,8 @@ def install(spec, opts = {})
         end
 
         if installed?(spec) && (!force || spec.name.eql?("bundler"))
-          Bundler.ui.info "Using #{version_message(spec)}"
+          Bundler.ui.debug "Using #{version_message(spec)}"
+          Bundler::Installer.using_gems << spec
           return nil # no post-install message
         end
 

spec/commands/update_spec.rb

@@ -182,7 +182,7 @@
       gem "activesupport"
     G
 
-    bundle "update"
+    bundle "update --verbose"
     expect(out).to include("Using activesupport 2.3.5")
 
     update_repo2 do
@@ -203,4 +203,23 @@
     expect(err).to include("This Bundle hasn't been installed yet. Run `bundle install` to update and install the bundled gems.")
     expect(exitstatus).to eq(22) if exitstatus
   end
+
+  it "shows the summary of the using gems" do
+    build_repo2
+
+    install_gemfile <<-G
+      source "file://#{gem_repo2}"
+      gem "activesupport"
+    G
+
+    bundle "update --verbose"
+    expect(out).to include("Using activesupport 2.3.5")
+
+    update_repo2 do
+      build_gem "activesupport", "3.0"
+    end
+
+    bundle "update"
+    expect(out).to include("Using 1 already installed gems")
+  end
 end

spec/install/force_spec.rb

@@ -17,7 +17,6 @@
       bundle "install --force"
 
       expect(exitstatus).to eq(0) if exitstatus
-      expect(out).to include "Using bundler"
       expect(out).to include "Installing rack 1.0.0"
       expect(rack_lib.open(&:read)).to eq("RACK = '1.0.0'\n")
       should_be_installed "rack 1.0.0"
@@ -27,7 +26,6 @@
       bundle "install --force"
 
       expect(exitstatus).to eq(0) if exitstatus
-      expect(out).to include "Using bundler"
       expect(out).to include "Installing rack 1.0.0"
       should_be_installed "rack 1.0.0"
     end

spec/install/gemfile/git_spec.rb

@@ -187,7 +187,7 @@
       G
 
       bundle %|config local.rack #{lib_path("local-rack")}|
-      bundle :install
+      bundle "install --verbose"
       expect(out).to match(/at #{lib_path('local-rack')}/)
 
       run "require 'rack'"

spec/runtime/setup_spec.rb

@@ -411,7 +411,7 @@
       G
 
       bundle %|config local.rack #{lib_path("local-rack")}|
-      bundle :install
+      bundle "install --verbose"
       expect(out).to match(/at #{lib_path('local-rack')}/)
 
       FileUtils.rm_rf(lib_path("local-rack"))
@@ -430,7 +430,7 @@
       G
 
       bundle %|config local.rack #{lib_path("local-rack")}|
-      bundle :install
+      bundle "install --verbose"
       expect(out).to match(/at #{lib_path('local-rack')}/)
 
       gemfile <<-G
@@ -453,7 +453,7 @@
       G
 
       bundle %|config local.rack #{lib_path("local-rack")}|
-      bundle :install
+      bundle "install --verbose"
       expect(out).to match(/at #{lib_path('local-rack')}/)
 
       gemfile <<-G

spec/update/git_spec.rb

@@ -31,7 +31,7 @@
         gem "rails", :git => "#{lib_path("rails")}"
       G
 
-      bundle "update rails"
+      bundle "update rails --verbose"
       expect(out).to include("Using activesupport 3.0 from #{lib_path("rails")} (at master)")
       should_be_installed "rails 3.0", "activesupport 3.0"
     end
@@ -208,7 +208,7 @@
       expect(out).to include("Bundle updated!")
     end
 
-    it "shows the previous version of the gem" do
+    it "shows the summary of the using gems" do
       build_git "rails", "3.0", :path => lib_path("rails")
 
       install_gemfile <<-G
@@ -229,6 +229,32 @@
       G
 
       bundle "update"
+      expect(out).to include("Using 2 already installed gems")
+    end
+  end
+
+  describe "with --verbose option" do
+    it "shows the previous version of the gem" do
+      build_git "rails", "3.0", :path => lib_path("rails")
+
+      install_gemfile <<-G
+        gem "rails", :git => "#{lib_path("rails")}"
+      G
+
+      lockfile <<-G
+        GIT
+          remote: #{lib_path("rails")}
+          specs:
+            rails (2.3.2)
+
+        PLATFORMS
+          #{generic(Gem::Platform.local)}
+
+        DEPENDENCIES
+          rails!
+      G
+
+      bundle "update --verbose"
       expect(out).to include("Using rails 3.0 (was 2.3.2) from #{lib_path("rails")} (at master)")
     end
   end

spec/update/path_spec.rb

@@ -1,18 +1,33 @@
 require "spec_helper"
 
-describe "path sources" do
-  describe "bundle update --source" do
-    it "shows the previous version of the gem when updated from path source" do
+describe "bundle update" do
+  describe "path sources" do
+    it "shows the summary of the using gems" do
       build_lib "activesupport", "2.3.5", :path => lib_path("rails/activesupport")
 
       install_gemfile <<-G
-      gem "activesupport", :path => "#{lib_path("rails/activesupport")}"
+        gem "activesupport", :path => "#{lib_path("rails/activesupport")}"
       G
 
       build_lib "activesupport", "3.0", :path => lib_path("rails/activesupport")
 
       bundle "update --source activesupport"
-      expect(out).to include("Using activesupport 3.0 (was 2.3.5) from source at #{lib_path("rails/activesupport")}")
+      expect(out).to include("Using 2 already installed gems")
+    end
+
+    describe "with --verbose option" do
+      it "shows the previous version of the gem" do
+        build_lib "activesupport", "2.3.5", :path => lib_path("rails/activesupport")
+
+        install_gemfile <<-G
+          gem "activesupport", :path => "#{lib_path("rails/activesupport")}"
+        G
+
+        build_lib "activesupport", "3.0", :path => lib_path("rails/activesupport")
+
+        bundle "update --source activesupport --verbose"
+        expect(out).to include("Using activesupport 3.0 (was 2.3.5) from source at #{lib_path("rails/activesupport")}")
+      end
     end
   end
 end