public BuildReport Run()
{
BuildReport report = new BuildReport();
Project projectToBuild = projectRegistry.GetProject(projectId);
Log(Level.Info, "Starting the build runner");
lock (this)
{
// construct a graph of build stages
foreach (BuildStage stage in projectToBuild.BuildStages)
{
BuildDependencyGraph(stage);
}
Log(Level.Debug, "Constructed build stages dependency graph");
}
while (true)
{
Log(Level.Debug, "New cycle started");
lock (this)
{
// retrieve the fresh info about stage statuses
foreach (BuildStage stage in stagesOrdered)
{
StageStatus status = GetStageStatus(stage);
if (status.Outcome == BuildOutcome.InProgress)
{
status.StageRunner.UpdateStatus(status);
}
Log(Level.Info, "Build stage '{0}' status: {1}", status.Stage.StageId, status.Outcome);
}
}
// check if the traffic buildTrafficSignals has signalled the runner to stop
BuildTrafficCopSignal signal = buildTrafficSignals.WaitForControlSignal(TimeSpan.Zero);
if (signal == BuildTrafficCopSignal.Stop)
{
break;
}
bool stagesPending = false;
lock (this)
{
// check if any of the stages can be started
foreach (BuildStage stage in stagesOrdered)
{
StageStatus status = stagesStatuses[stage.StageId];
if (status.Outcome == BuildOutcome.Initial)
{
bool someDependenciesFailed = false;
bool allDependenciesSuccessful = true;
// check dependecy stages
foreach (BuildStage dependency in stage.DependsOn)
{
StageStatus dependencyStatus = GetStageStatus(dependency);
if (dependencyStatus.Outcome == BuildOutcome.Failed)
{
// this stage will not be executed, so go to the next one
someDependenciesFailed = true;
allDependenciesSuccessful = false;
break;
}
else if (dependencyStatus.Outcome == BuildOutcome.Successful)
{
continue;
}
allDependenciesSuccessful = false;
}
if (someDependenciesFailed)
{
status.MarkAsNotExecuted();
}
else if (allDependenciesSuccessful)
{
// we can start this stage
Log(Level.Info, "Starting stage '{0}'", status.Stage.StageId);
IStageRunner stageRunner = this.buildStageRunnerFactory.CreateStageRunner(status.Stage);
status.PrepareToStart(stageRunner);
stageRunner.StartStage();
// update the status immediatelly
stageRunner.UpdateStatus(status);
stagesPending = true;
}
else
{
stagesPending = true;
}
}
}
}
if (stagesPending)
{
Log(Level.Debug, "Some build stages are still pending");
}
else
{
Log(Level.Debug, "The build has been executed");
break;
}
Log(Level.Debug, "Waiting for the traffic cop");
// check if the traffic buildTrafficSignals has signalled the runner to stop
signal = buildTrafficSignals.WaitForControlSignal(pollPeriod);
if (signal == BuildTrafficCopSignal.Stop)
{
break;
}
}
Log(Level.Info, "Stopping the build runner");
foreach (BuildStage stage in stagesOrdered)
{
BuildStageReport stageReport = new BuildStageReport();
stageReport.StageOutcome = GetStageStatus(stage).Outcome;
report.StageReports.Add(stage.StageId, stageReport);
}
return(report);
}
