Do not run clone step if no pipeline step will run

agent/runner.go

@@ -75,6 +75,16 @@ func (r *Runner) Run(ctx context.Context) error {
 		return nil
 	}
 
+	if len(work.Config.Stages) < 1 {
+		state := rpc.State{}
+		state.Started = time.Now().Unix()
+		_ = r.client.Init(ctxmeta, work.ID, state)
+		state.Finished = time.Now().Unix()
+		state.Exited = true
+		_ = r.client.Done(ctxmeta, work.ID, state)
+		return nil
+	}
+
 	timeout := time.Hour
 	if minutes := work.Timeout; minutes != 0 {
 		timeout = time.Duration(minutes) * time.Minute

pipeline/frontend/yaml/compiler/compiler.go

@@ -180,6 +180,7 @@ func (c *Compiler) Compile(conf *yaml.Config) *backend.Config {
 		config.Stages = append(config.Stages, stage)
 	}
 
+	var stages []*backend.Stage
 	// add pipeline steps. 1 pipeline step per stage, at the moment
 	var stage *backend.Stage
 	var group string
@@ -199,14 +200,21 @@ func (c *Compiler) Compile(conf *yaml.Config) *backend.Config {
 			stage = new(backend.Stage)
 			stage.Name = fmt.Sprintf("%s_stage_%v", c.prefix, i)
 			stage.Alias = container.Name
-			config.Stages = append(config.Stages, stage)
+			stages = append(stages, stage)
 		}
 
 		name := fmt.Sprintf("%s_step_%d", c.prefix, i)
 		step := c.createProcess(name, container, "pipeline")
 		stage.Steps = append(stage.Steps, step)
 	}
 
+	if len(stages) == 0 {
+		// nothing will run, remove services and clone step
+		config.Stages = []*backend.Stage{}
+	} else {
+		config.Stages = append(config.Stages, stages...)
+	}
+
 	c.setupCacheRebuild(conf, config)
 
 	return config

server/shared/procBuilder.go

@@ -114,10 +114,6 @@ func (b *ProcBuilder) Build() ([]*BuildItem, error) {
 
 			ir := b.toInternalRepresentation(parsed, environ, metadata, proc.ID)
 
-			if len(ir.Stages) == 0 {
-				continue
-			}
-
 			item := &BuildItem{
 				Proc:      proc,
 				Config:    ir,

web/src/components/repo/build/BuildProcList.vue

@@ -75,8 +75,12 @@
               </div>
             </div>
           </div>
+          <div v-if="proc.children === undefined || proc.children.length === 0" class="text-center m-auto">
+            <span>No pipeline steps available!</span>
+          </div>
           <div
             v-for="job in proc.children"
+            v-else
             :key="job.pid"
             class="flex p-2 pl-6 cursor-pointer items-center hover:bg-gray-700 hover:dark:bg-dark-gray-900"
             :class="{ 'bg-gray-700 !dark:bg-dark-gray-600': selectedProcId && selectedProcId === job.pid }"