Remove save_yaml_error from config_processor and don't create Ci::Commit if no builds were created

app/models/ci/commit.rb

@@ -131,10 +131,10 @@ module Ci
       @config_processor ||= begin
         Ci::GitlabCiYamlProcessor.new(ci_yaml_file, project.path_with_namespace)
       rescue Ci::GitlabCiYamlProcessor::ValidationError, Psych::SyntaxError => e
-        save_yaml_error(e.message)
+        self.yaml_errors = e.message
         nil
       rescue
-        save_yaml_error("Undefined error")
+        self.yaml_errors = "Undefined error"
         nil
       end
     end
@@ -169,11 +169,5 @@ module Ci
       self.duration = statuses.latest.duration
       save
     end
-
-    def save_yaml_error(error)
-      return if self.yaml_errors?
-      self.yaml_errors = error
-      update_state
-    end
   end
 end

app/services/ci/create_pipeline_service.rb

@@ -18,22 +18,19 @@ module Ci
         return pipeline
       end
-      begin
-        Ci::Commit.transaction do
-          pipeline.sha = commit.id
-
-          unless pipeline.config_processor
-            pipeline.errors.add(:base, pipeline.yaml_errors || 'Missing .gitlab-ci.yml file')
-            raise ActiveRecord::Rollback
-          end
-
-          pipeline.save!
-          pipeline.create_builds(current_user)
-        end
-      rescue
-        pipeline.errors.add(:base, 'The pipeline could not be created. Please try again.')
+      unless pipeline.config_processor
+        pipeline.errors.add(:base, pipeline.yaml_errors || 'Missing .gitlab-ci.yml file')
+        return pipeline
+      end
+
+      pipeline.sha = commit.id
+
+      unless pipeline.create_builds(current_user)
+        pipeline.errors.add(:base, 'No builds created')
+        return pipeline
       end
+      pipeline.touch
       pipeline
     end

app/services/ci/image_for_build_service.rb

 module Ci
   class ImageForBuildService
     def execute(project, opts)
+      # sha - commit sha
+      # ref - commit reference
+
       sha = opts[:sha] || ref_sha(project, opts[:ref])
       ci_commits = project.ci_commits.where(sha: sha)

app/services/create_commit_builds_service.rb

@@ -25,13 +25,12 @@ class CreateCommitBuildsService
       return false
     end
-    # Create a new ci_commit
-    commit.save!
-
     # Skip creating builds for commits that have [ci skip]
     unless commit.skip_ci?
       # Create builds for commit
-      commit.create_builds(user)
+      unless commit.create_builds(user)
+        return false
+      end
     end
     commit.touch