func (e *Engine) waitCloseOutputCh(stage stages.Stage) {
for {
receive, ok := <-*stage.GetOutputCh()
if !ok {
log.Debugf("outputCh closed")
break
}
log.Debugf("outputCh received %+v\n", receive)
}
}
//Execute executes a stage using the supplied mediator
func (e *Engine) Execute(stage stages.Stage, mediator stages.Mediator) stages.Mediator {
mediator.Type = "start"
name := stage.GetStageName()
log.Debugf("----- Execute %v start ------\n", name)
go func() {
*stage.GetInputCh() <- mediator
close(*stage.GetInputCh())
}()
go e.ExecuteStage(stage)
e.waitCloseOutputCh(stage)
return e.waitMonitorChFinalized(name)
}
func execute(stage stages.Stage) stages.Mediator {
mon := make(chan stages.Mediator)
e := &Engine{
MonitorCh: &mon,
Resources: &pipelines.Resources{
Reporter: &messengers.FakeMessenger{},
},
EnvVariables: config.NewEnvVariables(),
}
go e.ExecuteStage(stage)
mediator := stages.Mediator{States: make(map[string]string), Type: "start"}
go func() {
*stage.GetInputCh() <- mediator
close(*stage.GetInputCh())
}()
for {
_, ok := <-*stage.GetOutputCh()
if !ok {
break
}
}
var m stages.Mediator
acm := stages.Mediator{States: make(map[string]string)}
for {
m = <-mon
for k, v := range m.States {
acm.States[k] = v
}
if m.Type == "end" {
break
}
}
return acm
}
// ExecuteStage executes the supplied stage
func (e *Engine) ExecuteStage(stage stages.Stage) {
log.Debug("Receiving input")
mediatorsReceived := e.receiveInputs(stage.GetInputCh())
log.Debugf("Received input size: %v", len(mediatorsReceived))
log.Debugf("Mediator received: %+v", mediatorsReceived)
log.Debugf("Execute as parent: %+v", stage)
log.Debugf("Execute as parent name %+v", stage.GetStageName())
mediator := stages.Mediator{States: make(map[string]string)}
mediator.States[stage.GetStageName()] = e.executeStage(stage, mediatorsReceived)
e.executeChildStages(&stage, &mediator)
log.Debugf("Sending output of stage: %+v %v", stage.GetStageName(), mediator)
*stage.GetOutputCh() <- mediator
close(*stage.GetOutputCh())
log.Debugf("Closed output of stage: %+v", stage.GetStageName())
e.finalizeMonitorChAfterExecute(mediatorsReceived, mediator)
}
func (e *Engine) executeStage(stage stages.Stage, received []stages.Mediator) string {
var result string
if !e.isUpstreamAnyFailure(received) || e.Opts.StopOnAnyFailure {
result = strconv.FormatBool(stage.(stages.Runner).Run())
e.EnvVariables.ExportSpecialVariable("__OUT[\""+stage.GetStageName()+"\"]", stage.GetOutResult())
e.EnvVariables.ExportSpecialVariable("__ERR[\""+stage.GetStageName()+"\"]", stage.GetErrResult())
e.EnvVariables.ExportSpecialVariable("__RESULT[\""+stage.GetStageName()+"\"]", result)
} else {
log.Warnf("Execution is skipped: %v", stage.GetStageName())
result = "skipped"
}
e.Resources.ReportStageResult(stage, result)
log.Debugf("Stage execution results: %+v, %+v", stage.GetStageName(), result)
return result
}
// ReportStageResult throw the results of specified stage to the messenger services.
func (resources *Resources) ReportStageResult(stage stages.Stage, resultStr string) {
name := stage.GetStageName()
if !resources.Reporter.Suppress("result") {
if resultStr == "true" {
resources.Reporter.Post(
fmt.Sprintf("[%s][RESULT] Succeeded", name))
} else if resultStr == "skipped" {
resources.Reporter.Post(
fmt.Sprintf("[%s][RESULT] Skipped", name))
} else {
resources.Reporter.Post(
fmt.Sprintf("[%s][RESULT] Failed", name))
}
}
if stage.GetStageOpts().ReportingFullOutput {
if out := stage.GetOutResult(); (len(out) > 0) && (!resources.Reporter.Suppress("stdout")) {
resources.Reporter.Post(
fmt.Sprintf("[%s][STDOUT] %s", name, stage.GetOutResult()))
}
if err := stage.GetErrResult(); len(err) > 0 && (!resources.Reporter.Suppress("stderr")) {
resources.Reporter.Post(
fmt.Sprintf("[%s][STDERR] %s", name, stage.GetErrResult()))
}
}
}
func (e *Engine) executeStage(stage stages.Stage, received []stages.Mediator, mediator stages.Mediator) string {
var result string
if !e.isUpstreamAnyFailure(received) || e.Opts.StopOnAnyFailure {
result = strconv.FormatBool(stage.(stages.Runner).Run())
e.EnvVariables.ExportSpecialVariable("__OUT[\""+stage.GetStageName()+"\"]", stage.GetOutResult())
e.EnvVariables.ExportSpecialVariable("__ERR[\""+stage.GetStageName()+"\"]", stage.GetErrResult())
e.EnvVariables.ExportSpecialVariable("__COMBINED[\""+stage.GetStageName()+"\"]", stage.GetCombinedResult())
e.EnvVariables.ExportSpecialVariable("__RESULT[\""+stage.GetStageName()+"\"]", result)
e.executeChildStages(&stage, &mediator)
} else {
log.Warnf("Execution is skipped: %v", stage.GetStageName())
if childStages := stage.GetChildStages(); childStages.Len() > 0 {
for childStage := childStages.Front(); childStage != nil; childStage = childStage.Next() {
log.Warnf("Execution of child stage is skipped: %v", childStage.Value.(stages.Stage).GetStageName())
}
}
result = "skipped"
}
if !stage.GetSuppressAll() {
e.Resources.ReportStageResult(stage, result)
}
log.Debugf("Stage execution results: %+v, %+v", stage.GetStageName(), result)
return result
}