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 = null;

            try
            {
                ObjectId commandHash;
                {
                    // try to retrieve result from one of the object store
                    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 {0} delayed because it is currently running...", Command.ToString());
                        status = (await stepInProgress.ExecutedAsync()).Status;
                        matchingResult = stepInProgress.Result;
                    }
                    else
                    {
                        executeContext.NotifyCommandBuildStepStarted(this, commandHash);
                        Monitor.Exit(executeContext);
                        monitorExited = true;

                        executeContext.Logger.Debug("Command {0} scheduled...", Command.ToString());

                        status = await StartCommand(executeContext, commandResultEntries, builderContext);
                        executeContext.NotifyCommandBuildStepFinished(this, commandHash);
                    }
                }
            }
            finally
            {
                if (!monitorExited)
                {
                    Monitor.Exit(executeContext);
                }
            }

            // The command has not been executed
            if (matchingResult != null)
            {
                using (commandResultEntries)
                {
                    // Replicate triggered builds
                    Debug.Assert(SpawnedStepsList.Count == 0);

                    foreach (Command spawnedCommand in matchingResult.SpawnedCommands)
                    {
                        var spawnedStep = new CommandBuildStep(spawnedCommand);
                        SpawnedStepsList.Add(spawnedStep);
                        executeContext.ScheduleBuildStep(spawnedStep);
                    }

                    // Re-output command log messages
                    foreach (var message in matchingResult.LogMessages)
                    {
                        executeContext.Logger.Log(message);
                    }

                    // Wait for all build steps to complete.
                    // TODO: Ideally, we should store and replicate the behavior of the command that spawned it
                    // (wait if it used ScheduleAndExecute, don't wait if it used RegisterSpawnedCommandWithoutScheduling)
                    await Task.WhenAll(SpawnedSteps.Select(x => x.ExecutedAsync()));

                    status = ResultStatus.NotTriggeredWasSuccessful;
                    RegisterCommandResult(commandResultEntries, matchingResult, status);
                }
            }


            return status;
        }
Exemple #2
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        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 = null;

            try
            {
                ObjectId commandHash;
                {
                    // try to retrieve result from one of the object store
                    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 {0} delayed because it is currently running...", Command.ToString());
                        status         = (await stepInProgress.ExecutedAsync()).Status;
                        matchingResult = stepInProgress.Result;
                    }
                    else
                    {
                        executeContext.NotifyCommandBuildStepStarted(this, commandHash);
                        Monitor.Exit(executeContext);
                        monitorExited = true;

                        executeContext.Logger.Debug("Command {0} scheduled...", Command.ToString());

                        // 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)
                {
                    // Replicate triggered builds
                    Debug.Assert(SpawnedStepsList.Count == 0);

                    foreach (Command spawnedCommand in matchingResult.SpawnedCommands)
                    {
                        var spawnedStep = new CommandBuildStep(spawnedCommand);
                        SpawnedStepsList.Add(spawnedStep);
                        executeContext.ScheduleBuildStep(spawnedStep);
                    }

                    // Re-output command log messages
                    foreach (var message in matchingResult.LogMessages)
                    {
                        executeContext.Logger.Log(message);
                    }

                    // Wait for all build steps to complete.
                    // TODO: Ideally, we should store and replicate the behavior of the command that spawned it
                    // (wait if it used ScheduleAndExecute, don't wait if it used RegisterSpawnedCommandWithoutScheduling)
                    await Task.WhenAll(SpawnedSteps.Select(x => x.ExecutedAsync()));

                    status = ResultStatus.NotTriggeredWasSuccessful;
                    RegisterCommandResult(commandResultEntries, matchingResult, status);
                }
            }


            return(status);
        }
Exemple #3
0
        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);

            ObjectId commandHash;
            //await Task.Factory.StartNew(() =>
            {
                // try to retrieve result from one of the object store
                commandHash = Command.ComputeCommandHash(executeContext);
                var commandResultsFileStream = executeContext.ResultMap.OpenStream(commandHash, VirtualFileMode.OpenOrCreate, VirtualFileAccess.ReadWrite, VirtualFileShare.ReadWrite);
                commandResultEntries = new ListStore <CommandResultEntry>(commandResultsFileStream)
                {
                    AutoLoadNewValues = false
                };
                commandResultEntries.LoadNewValues();
            }
            //);

            // 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;
            var status = ResultStatus.NotProcessed;

            if (ShouldExecute(executeContext, commandResultEntries.GetValues(), commandHash, out matchingResult))
            {
                CommandBuildStep stepInProgress = executeContext.IsCommandCurrentlyRunning(commandHash);
                if (stepInProgress != null)
                {
                    Monitor.Exit(executeContext);
                    executeContext.Logger.Debug("Command {0} delayed because it is currently running...", Command.ToString());
                    status         = (await stepInProgress.ExecutedAsync()).Status;
                    matchingResult = stepInProgress.Result;
                }
                else
                {
                    executeContext.NotifyCommandBuildStepStarted(this, commandHash);
                    Monitor.Exit(executeContext);

                    executeContext.Logger.Debug("Command {0} scheduled...", Command.ToString());

                    status = await StartCommand(executeContext, commandResultEntries, builderContext);

                    executeContext.NotifyCommandBuildStepFinished(this, commandHash);
                }
            }
            else
            {
                Monitor.Exit(executeContext);
            }

            // The command has not been executed
            if (matchingResult != null)
            {
                using (commandResultEntries)
                {
                    // the command was not started because it is already up-to-date (retrieved from cache and no change in external files since last execution)
                    executeContext.Logger.Verbose("Command {0} is up-to-date, skipping...", Command.ToString());

                    // Replicate triggered builds
                    Debug.Assert(SpawnedStepsList.Count == 0);

                    foreach (Command spawnedCommand in matchingResult.SpawnedCommands)
                    {
                        var spawnedStep = new CommandBuildStep(spawnedCommand);
                        SpawnedStepsList.Add(spawnedStep);
                        executeContext.ScheduleBuildStep(spawnedStep);
                    }

                    // Wait for all build steps to complete.
                    // TODO: Ideally, we should store and replicate the behavior of the command that spawned it
                    // (wait if it used ScheduleAndExecute, don't wait if it used RegisterSpawnedCommandWithoutScheduling)
                    await Task.WhenAll(SpawnedSteps.Select(x => x.ExecutedAsync()));

                    status = ResultStatus.NotTriggeredWasSuccessful;

                    RegisterCommandResult(commandResultEntries, matchingResult, status);
                }
            }

            return(status);
        }