Add endpoint for getting repo public key

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

@@ -20,6 +20,10 @@ class Travis::Api::App
         respond_with service(:find_repo, params.merge(schema: 'cc'))
       end
 
+      get '/:id/key' do
+        respond_with service(:find_repo_key, params)
+      end
+
       get '/:owner_name/:name' do
         respond_with service(:find_repo, params)
       end
@@ -35,6 +39,10 @@ class Travis::Api::App
       get '/:owner_name/:name/cc' do
         respond_with service(:find_repo, params.merge(schema: 'cc'))
       end
+
+      get '/:owner_name/:name/key' do
+        respond_with service(:find_repo_key, params)
+      end
     end
   end
 end

spec/integration/v2/repositories_spec.rb

@@ -6,6 +6,16 @@ describe 'Repos' do
   let(:repo)    { Repository.by_slug('svenfuchs/minimal').first }
   let(:headers) { { 'HTTP_ACCEPT' => 'application/vnd.travis-ci.2+json' } }
 
+  it 'GET /repos/:id/key' do
+    response = get "/repos/#{repo.id}/key", {}, headers
+    response.should deliver_json_for(repo.key, version: 'v2')
+  end
+
+  it 'GET /repos/:slug/key' do
+    response = get "/repos/#{repo.slug}/key", {}, headers
+    response.should deliver_json_for(repo.key, version: 'v2')
+  end
+
   it 'GET /repos' do
     response = get '/repos', {}, headers
     response.should deliver_json_for(Repository.timeline, version: 'v2')