Allow to get repositories by ids

lib/travis/api/app/endpoint/repos.rb

@@ -16,6 +16,7 @@ class Travis::Api::App
       # json(:repositories)
       get '/' do
         prefer_follower do
+          params['ids'] = params['ids'].split(',') if params['ids'].respond_to?(:split)
           respond_with service(:find_repos, params)
         end
       end

spec/integration/v2/repositories_spec.rb

@@ -5,6 +5,17 @@ describe 'Repos' do
   let(:repo)    { Repository.by_slug('svenfuchs/minimal').first }
   let(:headers) { { 'HTTP_ACCEPT' => 'application/vnd.travis-ci.2+json' } }
 
+  describe 'with a list of ids' do
+    it 'returns repositories by ids' do
+      repos = Repository.all
+      ids = repos[0..1].map(&:id)
+      response = get "/repos?ids=#{ids.join(',')}", {}, headers
+      body = JSON.parse(response.body)
+
+      body['repos'].map { |r| r['id'] }.should == ids
+    end
+  end
+
   describe 'with authenticated user' do
     let(:user)    { User.where(login: 'svenfuchs').first }
     let(:token)   { Travis::Api::App::AccessToken.create(user: user, app_id: -1) }