Merge branch 'master' of https://github.com/andreamazz/CocoaPods into andreamazz-master

* 'master' of https://github.com/andreamazz/CocoaPods:
  Removed useless comment
  Added spec and updated CHANGELOG
  Trimmed line length
  Fixed indentation
  Pod update displays the previous version of a pod

Conflicts:
	CHANGELOG.md

CHANGELOG.md

@@ -33,6 +33,10 @@ To install or update CocoaPods see this [guide](http://docs.cocoapods.org/guides
   [Samuel Ford](https://github.com/samuelwford)
   [#1042](https://github.com/CocoaPods/CocoaPods/issues/1042)
 
+* `pod update` prints the previous version of the updated pods.  
+  [Andrea Mazzini](https://github.com/andreamazz)
+  [#2008](https://github.com/CocoaPods/CocoaPods/issues/2008)
+
 ##### Bug Fixes
 
 * Support HTTP redirects when linting homepage and screenshots.

lib/cocoapods/installer.rb

@@ -236,7 +236,13 @@ module Pod
       title_options = { :verbose_prefix => "-> ".green }
       root_specs.sort_by(&:name).each do |spec|
         if pods_to_install.include?(spec.name)
-          UI.titled_section("Installing #{spec}".green, title_options) do
+          if sandbox_state.changed.include?(spec.name) && sandbox.manifest
+            previous = sandbox.manifest.version(spec.name)
+            title = "Installing #{spec.name} #{spec.version} (was #{previous})"
+          else
+            title = "Installing #{spec}"
+          end
+          UI.titled_section(title.green, title_options) do
             install_source_of_pod(spec.name)
           end
         else

spec/unit/installer_spec.rb

@@ -204,6 +204,22 @@ module Pod
           @installer.installed_specs.should == [spec]
         end
 
+        it "prints the previous version of a pod while updating the spec" do
+          spec = Spec.new
+          spec.name = 'RestKit'
+          spec.version = '2.0'
+          manifest = Lockfile.new({})
+          manifest.stubs(:version).with('RestKit').returns('1.0')
+          @installer.sandbox.stubs(:manifest).returns(manifest)
+          @installer.stubs(:root_specs).returns([spec])
+          sandbox_state = Installer::Analyzer::SpecsState.new
+          sandbox_state.changed << 'RestKit'
+          @installer.stubs(:sandbox_state).returns(sandbox_state)
+          @installer.expects(:install_source_of_pod).with('RestKit')
+          @installer.send(:install_pod_sources)
+          UI.output.should.include 'was 1.0'
+        end
+
         #--------------------------------------#
 
         describe "#clean" do