Tomasz Maczukin
--- a/lib/api/builds.rb 0 → 100644
+++ b/lib/api/builds.rb 0 → 100644
+module API
+ # Projects builds API
+ class Builds < Grape::API
+   before { authenticate! }
--- a/lib/api/builds.rb 0 → 100644
+++ b/lib/api/builds.rb 0 → 100644
+     # Get a trace of a specific build of a project
+     #
+     # Parameters:
+     #   id (required) - The ID of a project
+     #   build_id (required) - The ID of a build
+     # Example Request:
+     #   GET /projects/:id/build/:build_id/trace
+     get ':id/builds/:build_id/trace' do
+       build = get_build(params[:build_id])
+       return not_found!(build) unless build
+
+       header 'Content-Disposition', "infile; filename=\"#{build.id}.log\""
+       content_type 'text/plain'
+       env['api.format'] = :binary
+
+       trace = build.trace
--- a/spec/requests/api/builds_spec.rb 0 → 100644
+++ b/spec/requests/api/builds_spec.rb 0 → 100644
+   end
+
+   context 'unauthorized user' do
+     it 'should not cancel build' do
+       post api("/projects/#{project.id}/builds/#{build.id}/cancel")
+
+       expect(response.status).to eq(401)
+     end
+   end
+ end
+
+ describe 'GET /projects/:id/builds/:build_id/retry' do
+   context 'authorized user' do
+     context 'user with :manage_builds persmission' do
+       it 'should retry non-running build' do
+         post api("/projects/#{project.id}/builds/#{build_canceled.id}/retry", user)
--- a/doc/api/builds.md 0 → 100644
+++ b/doc/api/builds.md 0 → 100644
+
+```
+GET /projects/:id/repository/commits/:sha/builds
+```
+
+Parameters:
+
+ `id` (required) - The ID of a project
+ `sha` (required) - The SHA id of a commit
+ `scope` (optional) - The scope of builds to show (one or array of: pending, running, failed, success, canceled; if none provided showing all builds)
+
+```json
+
+```
+
+## Get a single build
--- a/lib/api/entities.rb
+++ b/lib/api/entities.rb
     expose :id, :variables
   end
+
+   class Runner < Grape::Entity
+     expose :id
+     expose :description
+     expose :active
+     expose :is_shared
+     expose :name
+   end
+
+   class Build < Grape::Entity
+     expose :id, :status, :stage, :name, :ref, :tag, :coverage
+     expose :created_at, :started_at, :finished_at
+     expose :user, with: UserFull
+     expose :download_url do |repo_obj, options|