public async Task PerformDeployment(DeploymentInfoBase deploymentInfo, IDisposable tempDeployment = null, ChangeSet tempChangeSet = null)
{
DateTime currentMarkerFileUTC;
DateTime nextMarkerFileUTC = FileSystemHelpers.GetLastWriteTimeUtc(_markerFilePath);
ChangeSet lastChange = null;
do
{
// save the current marker
currentMarkerFileUTC = nextMarkerFileUTC;
string targetBranch = _settings.GetBranch();
using (_tracer.Step("Performing fetch based deployment"))
{
// create temporary deployment before the actual deployment item started
// this allows portal ui to readily display on-going deployment (not having to wait for fetch to complete).
// in addition, it captures any failure that may occur before the actual deployment item started
tempDeployment = tempDeployment ?? _deploymentManager.CreateTemporaryDeployment(
Resources.ReceivingChanges,
out tempChangeSet,
deploymentInfo.TargetChangeset,
deploymentInfo.Deployer);
ILogger innerLogger = null;
DeployStatusApiResult updateStatusObj = null;
try
{
ILogger logger = _deploymentManager.GetLogger(tempChangeSet.Id);
// Fetch changes from the repository
innerLogger = logger.Log(Resources.FetchingChanges);
IRepository repository = deploymentInfo.GetRepository();
try
{
await deploymentInfo.Fetch(repository, deploymentInfo, targetBranch, innerLogger, _tracer);
}
catch (BranchNotFoundException)
{
// mark no deployment is needed
deploymentInfo.TargetChangeset = null;
}
// set to null as Deploy() below takes over logging
innerLogger = null;
// The branch or commit id to deploy
string deployBranch = !String.IsNullOrEmpty(deploymentInfo.CommitId) ? deploymentInfo.CommitId : targetBranch;
try
{
_tracer.Trace($"Before sending {Constants.BuildRequestReceived} status to /api/updatedeploystatus");
if (PostDeploymentHelper.IsAzureEnvironment())
{
if (deploymentInfo != null &&
!string.IsNullOrEmpty(deploymentInfo.DeploymentTrackingId))
{
// Only send an updatedeploystatus request if DeploymentTrackingId is non null
// This signifies the client has opted in for these deployment updates for this deploy request
updateStatusObj = new DeployStatusApiResult(Constants.BuildRequestReceived, deploymentInfo.DeploymentTrackingId);
await _deploymentManager.SendDeployStatusUpdate(updateStatusObj);
}
}
}
catch (Exception e)
{
_tracer.TraceError($"Exception while sending {Constants.BuildRequestReceived} status to /api/updatedeploystatus. " +
$"Entry in the operations table for the deployment status may not have been created. {e}");
}
// In case the commit or perhaps fetch do no-op.
if (deploymentInfo.TargetChangeset != null && ShouldDeploy(repository, deploymentInfo, deployBranch))
{
// Perform the actual deployment
var changeSet = repository.GetChangeSet(deployBranch);
if (changeSet == null && !String.IsNullOrEmpty(deploymentInfo.CommitId))
{
throw new InvalidOperationException(String.Format("Invalid revision '{0}'!", deploymentInfo.CommitId));
}
lastChange = changeSet;
// Here, we don't need to update the working files, since we know Fetch left them in the correct state
// unless for GenericHandler where specific commitId is specified
bool deploySpecificCommitId = !String.IsNullOrEmpty(deploymentInfo.CommitId);
if (updateStatusObj != null)
{
updateStatusObj.DeploymentStatus = Constants.BuildInProgress;
await _deploymentManager.SendDeployStatusUpdate(updateStatusObj);
}
await _deploymentManager.DeployAsync(
repository,
changeSet,
deploymentInfo.Deployer,
clean : false,
deploymentInfo : deploymentInfo,
needFileUpdate : deploySpecificCommitId,
fullBuildByDefault : deploymentInfo.DoFullBuildByDefault);
if (updateStatusObj != null && !deploymentInfo.RestartAllowed)
{
// If restart is disallowed, send BuildSuccessful here as PostBuildRestartRequired was not sent
// during the DeployAsync flow.
updateStatusObj.DeploymentStatus = Constants.BuildSuccessful;
await _deploymentManager.SendDeployStatusUpdate(updateStatusObj);
}
}
}
catch (Exception ex)
{
if (innerLogger != null)
{
innerLogger.Log(ex);
}
// In case the commit or perhaps fetch do no-op.
if (deploymentInfo.TargetChangeset != null)
{
IDeploymentStatusFile statusFile = _status.Open(deploymentInfo.TargetChangeset.Id);
if (statusFile != null)
{
statusFile.MarkFailed();
}
}
try
{
if (updateStatusObj != null)
{
// Set deployment status as failure if exception is thrown
updateStatusObj.DeploymentStatus = Constants.BuildFailed;
await _deploymentManager.SendDeployStatusUpdate(updateStatusObj);
}
}
catch
{
// no-op
}
throw;
}
// only clean up temp deployment if successful
tempDeployment.Dispose();
}
// check marker file and, if changed (meaning new /deploy request), redeploy.
nextMarkerFileUTC = FileSystemHelpers.GetLastWriteTimeUtc(_markerFilePath);
} while (deploymentInfo.IsReusable && currentMarkerFileUTC != nextMarkerFileUTC);
if (lastChange != null && PostDeploymentHelper.IsAutoSwapEnabled())
{
IDeploymentStatusFile statusFile = _status.Open(lastChange.Id);
if (statusFile.Status == DeployStatus.Success)
{
// if last change is not null and finish successfully, mean there was at least one deployment happened
// since deployment is now done, trigger swap if enabled
await PostDeploymentHelper.PerformAutoSwap(_environment.RequestId, new PostDeploymentTraceListener(_tracer, _deploymentManager.GetLogger(lastChange.Id)));
}
}
}