public override void Clean(IExecuteContext executeContext, BuilderContext builderContext, bool deleteOutput)
{
// try to retrieve result from one of the object store
var commandHash = Command.ComputeCommandHash(executeContext);
// If there was an error computing the hash, early exit
if (commandHash == ObjectId.Empty)
{
return;
}
var commandResultsFileStream = executeContext.ResultMap.OpenStream(commandHash, VirtualFileMode.OpenOrCreate, VirtualFileAccess.ReadWrite, VirtualFileShare.ReadWrite);
var commandResultEntries = new ListStore <CommandResultEntry>(commandResultsFileStream)
{
AutoLoadNewValues = false
};
commandResultEntries.LoadNewValues();
commandResultsFileStream.Close();
CommandResultEntry matchingResult = FindMatchingResult(executeContext, commandResultEntries.GetValues());
if (matchingResult != null)
{
if (deleteOutput)
{
foreach (KeyValuePair <ObjectUrl, ObjectId> outputObject in matchingResult.OutputObjects)
{
switch (outputObject.Key.Type)
{
case UrlType.File:
try
{
if (File.Exists(outputObject.Key.Path))
{
File.Delete(outputObject.Key.Path);
}
}
catch (Exception)
{
executeContext.Logger.Error("Unable to delete file: " + outputObject.Key.Path);
}
break;
case UrlType.Content:
executeContext.ResultMap.Delete(outputObject.Value);
break;
}
}
}
}
executeContext.ResultMap.Delete(commandHash);
}
public override async Task <ResultStatus> Execute(IExecuteContext executeContext, BuilderContext builderContext)
{
ListStore <CommandResultEntry> commandResultEntries;
// Prevent several command build step to evaluate wheither they should start at the same time. This increase the efficiency of the builder by avoiding the same command to be executed several time in parallel
// NOTE: Careful here, there's no try/finally block around the monitor Enter/Exit, so no non-fatal exception is allowed!
Monitor.Enter(executeContext);
bool monitorExited = false;
var status = ResultStatus.NotProcessed;
// if any external input has changed since the last execution (or if we don't have a successful execution in cache, trigger the command
CommandResultEntry matchingResult;
try
{
// try to retrieve result from one of the object store
var commandHash = Command.ComputeCommandHash(executeContext);
// Early exit if the hash of the command failed
if (commandHash == ObjectId.Empty)
{
return(ResultStatus.Failed);
}
var commandResultsFileStream = executeContext.ResultMap.OpenStream(commandHash, VirtualFileMode.OpenOrCreate, VirtualFileAccess.ReadWrite, VirtualFileShare.ReadWrite);
commandResultEntries = new ListStore <CommandResultEntry>(commandResultsFileStream)
{
AutoLoadNewValues = false
};
commandResultEntries.LoadNewValues();
if (ShouldExecute(executeContext, commandResultEntries.GetValues(), commandHash, out matchingResult))
{
CommandBuildStep stepInProgress = executeContext.IsCommandCurrentlyRunning(commandHash);
if (stepInProgress != null)
{
Monitor.Exit(executeContext);
monitorExited = true;
executeContext.Logger.Debug($"Command {Command} delayed because it is currently running...");
status = (await stepInProgress.ExecutedAsync()).Status;
matchingResult = stepInProgress.Result;
}
else
{
executeContext.NotifyCommandBuildStepStarted(this, commandHash);
Monitor.Exit(executeContext);
monitorExited = true;
executeContext.Logger.Debug($"Command {Command} scheduled...");
// Register the cancel callback
var cancellationTokenSource = executeContext.CancellationTokenSource;
cancellationTokenSource.Token.Register(x => ((Command)x).Cancel(), Command);
Command.CancellationToken = cancellationTokenSource.Token;
try
{
status = await StartCommand(executeContext, commandResultEntries, builderContext);
}
finally
{
// Restore cancellation token (to avoid memory leak due to previous CancellationToken.Register
Command.CancellationToken = CancellationToken.None;
}
executeContext.NotifyCommandBuildStepFinished(this, commandHash);
}
}
}
finally
{
if (!monitorExited)
{
Monitor.Exit(executeContext);
}
}
// The command has not been executed
if (matchingResult != null)
{
using (commandResultEntries)
{
// Re-output command log messages
foreach (var message in matchingResult.LogMessages)
{
executeContext.Logger.Log(message);
}
status = ResultStatus.NotTriggeredWasSuccessful;
RegisterCommandResult(commandResultEntries, matchingResult, status);
}
}
return(status);
}