Add database seed for build artifacts

db/fixtures/development/14_builds.rb

 Gitlab::Seeder.quiet do
+  build_artifacts_path = Rails.root + 'spec/fixtures/ci_build_artifacts.tar.gz'
+  build_artifacts_cache_file = build_artifacts_path.to_s.gsub('ci_', '')
+
   Project.all.sample(5).each do |project|
-    commits = project.repository.commits('master', nil, 10)
+    commits = project.repository.commits('master', nil, 5)
     commits_sha = commits.map { |commit| commit.raw.id }
     ci_commits = commits_sha.map do |sha|
       project.ensure_ci_commit(sha)
     end
 
     ci_commits.each do |ci_commit|
-      attributes = { type: 'Ci::Build', name: 'test build',
-                     commands: "$ build command", stage: 'test',
-                     stage_idx: 1, ref: 'master', user_id: User.first,
-                     gl_project_id: project.id, options: '---- opts',
+      attributes = { type: 'Ci::Build', name: 'test build', commands: "$ build command",
+                     stage: 'test', stage_idx: 1, ref: 'master',
+                     user_id: project.team.users.sample, gl_project_id: project.id,
                      status: %w(running pending success failed canceled).sample,
-                     commit_id: ci_commit.id }
+                     commit_id: ci_commit.id, created_at: Time.now, updated_at: Time.now }
+
+      build = Ci::Build.new(attributes)
+      build.artifacts_metadata = `tar tzf #{build_artifacts_path}`.split(/\n/)
+
+      FileUtils.copy(build_artifacts_path, build_artifacts_cache_file)
+      build.artifacts_file = artifacts_file = File.open(build_artifacts_cache_file, 'r')
 
       begin
-        Ci::Build.create!(attributes)
+        build.save!
         print '.'
       rescue ActiveRecord::RecordInvalid
+        puts build.error.messages.inspect
         print 'F'
+      ensure
+        artifacts_file.close
       end
     end
   end