/// <summary>
/// Helper method so we can keep the real Expander.ExpandMetadataAndProperties private.
/// </summary>
/// <param name="bucket"></param>
/// <param name="expression"></param>
/// <returns></returns>
/// <owner>RGoel</owner>
private static string ExpandMetadataAndProperties
(
ItemBucket bucket,
string expression
)
{
Expander itemExpander = new Expander(bucket.Expander, ExpanderOptions.ExpandPropertiesAndMetadata);
return(itemExpander.ExpandAllIntoString(expression, (new XmlDocument()).CreateAttribute("foo")));
}
/// <summary>
/// Helper method so we can keep the real Expander.ExpandItemsIntoString private.
/// </summary>
/// <param name="bucket"></param>
/// <param name="expression"></param>
/// <returns></returns>
/// <owner>RGoel</owner>
private static string ExpandItemsIntoString
(
ItemBucket bucket,
string expression
)
{
Expander itemExpander = new Expander(new ReadOnlyLookup(bucket.Lookup), null, ExpanderOptions.ExpandItems);
return(itemExpander.ExpandAllIntoString(expression, (new XmlDocument()).CreateAttribute("foo")));
}
public UsingTaskInfo CopyAndExpand(Expander expander)
{
string newTaskName = expander.ExpandAllIntoString(UsingTask.TaskName, UsingTask.TaskNameAttribute);
string newCondition = null;
string newAssemblyName = null;
string newAssemblyFile = null;
if (UsingTask.Condition != null)
{
newCondition = expander.ExpandAllIntoString(UsingTask.Condition, UsingTask.ConditionAttribute);
}
if (UsingTask.AssemblyName != null)
{
newAssemblyName = expander.ExpandAllIntoString(UsingTask.AssemblyName, UsingTask.AssemblyNameAttribute);
}
if (UsingTask.AssemblyFile != null)
{
newAssemblyFile = expander.ExpandAllIntoString(UsingTask.AssemblyFile, UsingTask.AssemblyFileAttribute);
}
return(new UsingTaskInfo(newTaskName, newAssemblyName, newAssemblyFile, newCondition));
}
/// <summary>
/// Reads the given <UsingTask> tag and saves the task information specified in it.
/// </summary>
/// <param name="usingTask"></param>
/// <param name="expander"></param>
/// <param name="loggingServices"></param>
/// <param name="buildEventContext"></param>
public void RegisterTask(UsingTask usingTask, Expander expander, EngineLoggingServices loggingServices, BuildEventContext buildEventContext)
{
if (
// if the <UsingTask> tag doesn't have a condition on it
(usingTask.Condition == null)
||
// or if the condition holds
Utilities.EvaluateCondition(usingTask.Condition, usingTask.ConditionAttribute, expander,
null, ParserOptions.AllowProperties | ParserOptions.AllowItemLists, loggingServices, buildEventContext)
)
{
// Lazily allocate the hashtables if they are needed
if (registeredTasks == null)
{
cachedTaskClassesWithExactMatch = new Hashtable(StringComparer.OrdinalIgnoreCase);
cachedTaskClassesWithFuzzyMatch = new Hashtable(StringComparer.OrdinalIgnoreCase);
registeredTasks = new Hashtable(StringComparer.OrdinalIgnoreCase);
}
string assemblyName = null;
string assemblyFile = null;
if (usingTask.AssemblyName != null)
{
// expand out all embedded properties and items in the assembly name
assemblyName = expander.ExpandAllIntoString(usingTask.AssemblyName, usingTask.AssemblyNameAttribute);
ProjectErrorUtilities.VerifyThrowInvalidProject(assemblyName.Length > 0,
usingTask.AssemblyNameAttribute, "InvalidEvaluatedAttributeValue", assemblyName, usingTask.AssemblyName, XMakeAttributes.assemblyName, XMakeElements.usingTask);
}
else
{
// expand out all embedded properties and items in the assembly file/path
assemblyFile = expander.ExpandAllIntoString(usingTask.AssemblyFile, usingTask.AssemblyFileAttribute);
ProjectErrorUtilities.VerifyThrowInvalidProject(assemblyFile.Length > 0,
usingTask.AssemblyFileAttribute, "InvalidEvaluatedAttributeValue", assemblyFile, usingTask.AssemblyFile, XMakeAttributes.assemblyFile, XMakeElements.usingTask);
// figure out the directory of the project in which this <UsingTask> node was defined
string projectFile = XmlUtilities.GetXmlNodeFile(usingTask.TaskNameAttribute.OwnerElement, String.Empty);
string projectDir = (projectFile.Length > 0)
? Path.GetDirectoryName(projectFile)
: String.Empty;
// ensure the assembly file/path is relative to the project in which this <UsingTask> node was defined -- we
// don't want paths from imported projects being interpreted relative to the main project file
try
{
assemblyFile = Path.Combine(projectDir, assemblyFile);
}
catch (ArgumentException ex)
{
// Invalid chars in AssemblyFile path
ProjectErrorUtilities.VerifyThrowInvalidProject(false, usingTask.AssemblyFileAttribute,
"InvalidAttributeValueWithException", assemblyFile,
XMakeAttributes.assemblyFile, XMakeElements.usingTask, ex.Message);
}
}
AssemblyLoadInfo taskAssembly = new AssemblyLoadInfo(assemblyName, assemblyFile);
// expand out all embedded properties and items
string taskName = expander.ExpandAllIntoString(usingTask.TaskName, usingTask.TaskNameAttribute);
ProjectErrorUtilities.VerifyThrowInvalidProject(taskName.Length > 0,
usingTask.TaskNameAttribute, "InvalidEvaluatedAttributeValue", taskName, usingTask.TaskName, XMakeAttributes.taskName, XMakeElements.usingTask);
// since more than one task can have the same name, we want to keep track of all assemblies that are declared to
// contain tasks with a given name...
ArrayList taskAssemblies = (ArrayList)registeredTasks[taskName];
if (taskAssemblies == null)
{
taskAssemblies = new ArrayList();
registeredTasks[taskName] = taskAssemblies;
}
taskAssemblies.Add(taskAssembly);
}
}
/// <summary>
/// Builds this target if it has not already been built as part of its parent project. Before we actually execute the
/// tasks for this target, though, we first call on all the dependent targets to build themselves.
/// This function may throw InvalidProjectFileException
/// </summary>
internal void Build
(
ProjectBuildState buildContext
)
{
// Depending on the build state, we may do different things.
switch (buildState)
{
case BuildState.InProgress:
// In single proc mode if the build state was already "in progress"
// and somebody just told us to build ourselves, it means that there is
// a loop (circular dependency) in the target dependency graph. In multi
// proc mode we need to analyze the dependency graph before we can
// tell if there a circular dependency or if two independent chains
// of targets happen to need the result of this target.
if (parentEngine.Router.SingleThreadedMode || buildContext.ContainsCycle(this.Name))
{
ProjectErrorUtilities.VerifyThrowInvalidProject(false, TargetElement, "CircularDependency", targetName);
}
else
{
buildContext.CurrentBuildContextState = ProjectBuildState.BuildContextState.WaitingForTarget;
this.executionState.AddWaitingBuildContext(buildContext);
}
break;
case BuildState.CompletedSuccessfully:
case BuildState.CompletedUnsuccessfully:
// If this target has already been built as part of this project,
// we're not going to build it again. Just return the result
// from when it was built previously. Note: This condition
// could really only ever hold true if the user specifically
// requested us to build multiple targets and there existed
// a direct or indirect dependency relationship between two or
// more of those top-level targets.
// Note: we aren't really entering the target in question here, so don't use the target
// event context. Using the target ID for skipped messages would force us to
// cache the individual target IDs for unloaded projects and it's not really worth the trouble.
// Just use the parent event context.
parentEngine.LoggingServices.LogComment(buildContext.ProjectBuildEventContext,
((buildState == BuildState.CompletedSuccessfully) ? "TargetAlreadyCompleteSuccess" : "TargetAlreadyCompleteFailure"),
this.targetName);
// Only contexts which are generated from an MSBuild task could need
// the outputs of this target, such contexts have a non-null evaluation
// request
if ((buildState == BuildState.CompletedSuccessfully) &&
(buildContext.BuildRequest.OutputsByTarget != null &&
buildContext.NameOfBlockingTarget == null))
{
error.VerifyThrow(
String.Compare(EscapingUtilities.UnescapeAll(buildContext.NameOfTargetInProgress), this.Name, StringComparison.OrdinalIgnoreCase) == 0,
"The name of the target in progress is inconsistent with the target being built");
error.VerifyThrow(targetOutputItems != null,
"If the target built successfully, we must have its outputs.");
buildContext.BuildRequest.OutputsByTarget[Name] = targetOutputItems.ToArray();
}
if (buildContext.NameOfBlockingTarget == null)
{
buildContext.BuildRequest.ResultByTarget[Name] = buildState;
}
break;
case BuildState.NotStarted:
case BuildState.Skipped:
{
// Always have to create a new context in build as other projects or targets may try and build this target
BuildEventContext targetBuildEventContext = new BuildEventContext
(
buildContext.ProjectBuildEventContext.NodeId,
this.id,
buildContext.ProjectBuildEventContext.ProjectContextId,
buildContext.ProjectBuildEventContext.TaskId
);
Expander expander = new Expander(this.parentProject.evaluatedProperties, this.parentProject.evaluatedItemsByName);
// We first make sure no batching was attempted with the target's condition.
if (!conditionCheckedForInvalidMetadataReferences)
{
if (ExpressionShredder.ContainsMetadataExpressionOutsideTransform(this.Condition))
{
ProjectErrorUtilities.ThrowInvalidProject(this.conditionAttribute, "TargetConditionHasInvalidMetadataReference", targetName, this.Condition);
}
conditionCheckedForInvalidMetadataReferences = true;
}
// If condition is false (based on propertyBag), set this target's state to
// "Skipped" since we won't actually build it.
if (!Utilities.EvaluateCondition(this.Condition, this.conditionAttribute,
expander, null, ParserOptions.AllowProperties | ParserOptions.AllowItemLists,
parentEngine.LoggingServices, targetBuildEventContext))
{
buildState = BuildState.Skipped;
if (buildContext.NameOfBlockingTarget == null)
{
buildContext.BuildRequest.ResultByTarget[Name] = buildState;
}
if (!parentEngine.LoggingServices.OnlyLogCriticalEvents)
{
// Expand the expression for the Log.
string expanded = expander.ExpandAllIntoString(this.Condition, this.conditionAttribute);
// By design: Not building dependencies. This is what NAnt does too.
parentEngine.LoggingServices.LogComment(targetBuildEventContext, "TargetSkippedFalseCondition",
this.targetName, this.Condition, expanded);
}
}
else
{
// This target has not been built yet. So build it!
// Change our state to "in progress". TargetParameters will need to be re-calculated if Inputs and Outputs attribute has changed.
buildState = BuildState.InProgress;
List <string> batchableTargetParameters = GetBatchableTargetParameters();
executionState = new TargetExecutionWrapper(this, taskElementList, batchableTargetParameters, targetElement, expander, targetBuildEventContext);
ContinueBuild(buildContext, null);
}
}
break;
default:
error.VerifyThrow(false, "Build state {0} not handled in Target.Build method", buildState);
break;
}
}