[Source] list the name of the repos.

lib/cocoapods/source.rb

@@ -2,14 +2,20 @@ module Pod
   class Source
     class Aggregate
       def all
-        @sources ||= begin
+        @sources ||= dirs.map { |repo| Source.new(repo) }
+      end
+
+      def dirs
         repos_dir = Config.instance.repos_dir
         unless repos_dir.exist?
           raise Informative, "No spec repos found in `#{repos_dir}'. " \
             "To fetch the `master' repo run: $ pod setup"
         end
-          repos_dir.children.select(&:directory?).map { |repo| Source.new(repo) }
+        repos_dir.children.select(&:directory?)
       end
+
+      def names
+        dirs.map { |repo| repo.basename.to_s }.sort
       end
 
       def all_sets
@@ -48,6 +54,10 @@ module Pod
       Aggregate.new.search_by_name(name, full_text_search)
     end
 
+    def self.names
+      Aggregate.new.names
+    end
+
     attr_reader :repo
 
     def initialize(repo)

spec/unit/source_spec.rb

@@ -36,4 +36,8 @@ describe "Pod::Source" do
       Pod::Source.search(Pod::Dependency.new('RestKit/DoesNotExist'))
     }.should.raise Pod::Informative
   end
+
+  it "return the names of the repos" do
+    Pod::Source.names.should == %w| repo1 repo2 |
+  end
 end