Fix pipeline and build seeds in development environment

When we depend on state machine events in seeds, it is likely that we
will break fixtures from time to time because when transition rules
change, using events most likely invalidates some objects in seeds.

db/fixtures/development/14_builds.rb

 class Gitlab::Seeder::Builds
   STAGES = %w[build notify_build test notify_test deploy notify_deploy]
+  BUILDS = [
+    { name: 'build:linux', stage: 'build', status: :success },
+    { name: 'build:osx', stage: 'build', status: :success },
+    { name: 'slack post build', stage: 'notify_build', status: :success },
+    { name: 'rspec:linux', stage: 'test', status: :success },
+    { name: 'rspec:windows', stage: 'test', status: :success },
+    { name: 'rspec:windows', stage: 'test', status: :success },
+    { name: 'rspec:osx', stage: 'test', status_event: :success },
+    { name: 'spinach:linux', stage: 'test', status: :pending },
+    { name: 'spinach:osx', stage: 'test', status: :canceled },
+    { name: 'cucumber:linux', stage: 'test', status: :running },
+    { name: 'cucumber:osx', stage: 'test', status: :failed },
+    { name: 'slack post test', stage: 'notify_test', status: :success },
+    { name: 'staging', stage: 'deploy', environment: 'staging', status: :success },
+    { name: 'production', stage: 'deploy', environment: 'production', when: 'manual', status: :success },
+  ]
 
   def initialize(project)
     @project = project
@@ -8,25 +24,7 @@ class Gitlab::Seeder::Builds
   def seed!
     pipelines.each do |pipeline|
       begin
-        build_create!(pipeline, name: 'build:linux', stage: 'build', status_event: :success)
-        build_create!(pipeline, name: 'build:osx', stage: 'build', status_event: :success)
-
-        build_create!(pipeline, name: 'slack post build', stage: 'notify_build', status_event: :success)
-
-        build_create!(pipeline, name: 'rspec:linux', stage: 'test', status_event: :success)
-        build_create!(pipeline, name: 'rspec:windows', stage: 'test', status_event: :success)
-        build_create!(pipeline, name: 'rspec:windows', stage: 'test', status_event: :success)
-        build_create!(pipeline, name: 'rspec:osx', stage: 'test', status_event: :success)
-        build_create!(pipeline, name: 'spinach:linux', stage: 'test', status: :pending)
-        build_create!(pipeline, name: 'spinach:osx', stage: 'test', status_event: :cancel)
-        build_create!(pipeline, name: 'cucumber:linux', stage: 'test', status_event: :run)
-        build_create!(pipeline, name: 'cucumber:osx', stage: 'test', status_event: :drop)
-
-        build_create!(pipeline, name: 'slack post test', stage: 'notify_test', status_event: :success)
-
-        build_create!(pipeline, name: 'staging', stage: 'deploy', environment: 'staging', status_event: :success)
-        build_create!(pipeline, name: 'production', stage: 'deploy', environment: 'production', when: 'manual', status: :success)
-
+        BUILDS.each { |opts| build_create!(pipeline, opts) }
         commit_status_create!(pipeline, name: 'jenkins', status: :success)
 
         print '.'
@@ -48,8 +46,8 @@ class Gitlab::Seeder::Builds
 
   def build_create!(pipeline, opts = {})
     attributes = build_attributes_for(pipeline, opts)
-    build = Ci::Build.create!(attributes)
 
+    Ci::Build.create!(attributes) do |build|
       if opts[:name].start_with?('build')
         artifacts_cache_file(artifacts_archive_path) do |file|
           build.artifacts_file = file
@@ -65,6 +63,7 @@ class Gitlab::Seeder::Builds
         build.trace = FFaker::Lorem.paragraphs(6).join("\n\n")
       end
     end
+  end
 
   def commit_status_create!(pipeline, opts = {})
     attributes = commit_status_attributes_for(pipeline, opts)