Working output passing for common jobs.

Author: Gergely Brautigam

workers/scheduler/scheduler.go

@@ -457,13 +457,48 @@ func (s *Scheduler) SchedulePipeline(p *gaia.Pipeline, args []*gaia.Argument) (*
 	return &run, s.storeService.PipelinePutRun(&run)
 }
 
+func getDependency(s string, r *gaia.PipelineRun) *gaia.Job {
+	for _, p := range r.Jobs {
+		if p.Title == s {
+			return p
+		}
+	}
+
+	return nil
+}
+
 // executeJob executes a job and informs via triggerSave that the job can be saved to the store.
 // This method is blocking.
-func executeJob(j gaia.Job, pS plugin.Plugin, triggerSave chan gaia.Job) {
+func executeJob(j gaia.Job, pS plugin.Plugin, triggerSave chan gaia.Job, run *gaia.PipelineRun) {
 	// Set Job to running and trigger save
 	j.Status = gaia.JobRunning
 	triggerSave <- j
 
+	// Load in the jobs previous dependencies and look for possible output.
+	// For some reason the job's dependencies are not up to date here.
+	// Need to get the run information from the PipelineRun.
+	//log.Println("depends On: ", j.DependsOn)
+	for _, dependingJob := range j.DependsOn {
+		dep := getDependency(dependingJob.Title, run)
+		if dep == nil {
+			continue
+		}
+
+		// look for output
+		if dep.Outs == nil {
+			continue
+		}
+
+		// Set up any arguments which might match which are a dependency to this job.
+		for _, out := range dep.Outs {
+			for _, arg := range j.Args {
+				if arg.Key == out.Key {
+					arg.Value = out.Value
+				}
+			}
+		}
+	}
+
 	// Execute job
 	if err := pS.Execute(&j); err != nil {
 		gaia.Cfg.Logger.Debug("error during job execution", "error", err.Error(), "job", j)
@@ -760,7 +795,7 @@ func (s *Scheduler) executeScheduler(r *gaia.PipelineRun, pS plugin.Plugin) {
 				mw.Replace(*wl)
 
 				// Start execution
-				go executeJob(*j, pS, triggerSave)
+				go executeJob(*j, pS, triggerSave, r)
 			}
 		}
 	}