internal void Load (TaskDatabase db)
{
AssemblyLoadInfo loadInfo = null;
if (AssemblyName != null) {
loadInfo = new AssemblyLoadInfo (AssemblyName, TaskName);
} else if (AssemblyFile != null) {
Expression exp = new Expression ();
// FIXME: test it
exp.Parse (AssemblyFile, ParseOptions.Split);
string filename = (string) exp.ConvertTo (project, typeof (string));
if (Path.IsPathRooted (filename) == false) {
string ffn;
if (importedProject != null) {
ffn = Path.GetDirectoryName (importedProject.FullFileName);
} else if (project.FullFileName != String.Empty) {
ffn = Path.GetDirectoryName (project.FullFileName);
} else {
ffn = Environment.CurrentDirectory;
}
filename = Path.Combine (ffn, filename);
}
loadInfo = new AssemblyLoadInfo (LoadInfoType.AssemblyFilename, filename, null, null, null, null, TaskName);
}
db.RegisterTask (TaskName, loadInfo);
}
public ItemReference (string original_string, string itemName, string transform, string separator, int start, int length)
{
this.itemName = itemName;
this.start = start;
this.length = length;
this.original_string = original_string;
// Transform and separator are never expanded for item refs
if (transform != null) {
this.transform = new Expression ();
this.transform.Parse (transform, ParseOptions.AllowMetadata | ParseOptions.Split);
}
if (separator != null) {
this.separator = new Expression ();
this.separator.Parse (separator, ParseOptions.Split);
}
}
// In eval phase, any ref'ed item would've already been expanded
// or it doesnt exist, so dont expand again
// In non-eval, items have _already_ been expanded, so dont expand again
// So, ignore @options
internal ITaskItem[] ConvertToITaskItemArray (Expression transform, Expression separator, ExpressionOptions options)
{
if (separator != null)
// separator present, so return as a single "join'ed" string
return new ITaskItem [] {
new TaskItem (ConvertToString (transform, separator, options))
};
ITaskItem[] array = new ITaskItem [buildItems.Count];
int i = 0;
foreach (BuildItem item in buildItems)
array [i++] = item.ConvertToITaskItem (transform, ExpressionOptions.DoNotExpandItemRefs);
return array;
}
// In eval phase, any ref'ed item would've already been expanded
// or it doesnt exist, so dont expand again
// In non-eval, items have _already_ been expanded, so dont expand again
// So, ignore @options
internal string ConvertToString (Expression transform,
Expression separator, ExpressionOptions options)
{
string separatorString;
// Item refs are not expanded for separator or transform
if (separator == null)
separatorString = ";";
else
separatorString = (string) separator.ConvertTo (parentProject, typeof (string),
ExpressionOptions.DoNotExpandItemRefs);
string[] items = new string [buildItems.Count];
int i = 0;
foreach (BuildItem bi in buildItems)
items [i++] = bi.ConvertToString (transform, ExpressionOptions.DoNotExpandItemRefs);
return String.Join (separatorString, items);
}
void AddMetadata (string name, string value)
{
if (parent_item_group != null) {
Expression e = new Expression ();
e.Parse (value, ParseOptions.AllowItemsNoMetadataAndSplit);
evaluatedMetadata [name] = (string) e.ConvertTo (parent_item_group.ParentProject,
typeof (string), ExpressionOptions.ExpandItemRefs);
} else
evaluatedMetadata [name] = Utilities.Unescape (value);
unevaluatedMetadata [name] = value;
}
// during property's eval phase, this is never reached, as PropertyReference
// handles the eval case
//
// during item's eval phase, we have expand: true, that's what we
// do here..
//
// during non-eval, expand: true
// So, its always true here
internal string ConvertToString (Project project, ExpressionOptions options)
{
if (converting) {
// found ref to @this while trying to ConvertToString
// for @this!
return FinalValue;
}
converting = true;
try {
Expression exp = new Expression ();
// in non-evaluation phase, properties are always expanded
exp.Parse (FinalValue, options == ExpressionOptions.ExpandItemRefs ?
ParseOptions.AllowItems : ParseOptions.None);
return (string) exp.ConvertTo (project, typeof (string), options);
} finally {
converting = false;
}
}
string GetItemSpecFromTransform (Expression transform, ExpressionOptions options)
{
StringBuilder sb;
if (transform == null) {
if (options == ExpressionOptions.ExpandItemRefs) {
// With usual code paths, this will never execute,
// but letting this be here, incase BI.ConvertTo*
// is called directly
Expression expr = new Expression ();
expr.Parse (finalItemSpec, ParseOptions.AllowItemsNoMetadataAndSplit);
return (string) expr.ConvertTo (parent_item_group.ParentProject,
typeof (string), ExpressionOptions.ExpandItemRefs);
} else {
return finalItemSpec;
}
} else {
// Transform, _DONT_ expand itemrefs
sb = new StringBuilder ();
foreach (object o in transform.Collection) {
if (o is string) {
sb.Append ((string)o);
} else if (o is PropertyReference) {
sb.Append (((PropertyReference)o).ConvertToString (
parent_item_group.ParentProject,
ExpressionOptions.DoNotExpandItemRefs));
} else if (o is ItemReference) {
sb.Append (((ItemReference)o).ConvertToString (
parent_item_group.ParentProject,
ExpressionOptions.DoNotExpandItemRefs));
} else if (o is MetadataReference) {
sb.Append (GetMetadata (((MetadataReference)o).MetadataName));
}
}
return sb.ToString ();
}
}
// during item's eval phase, any item refs in this item, have either
// already been expanded or are non-existant, so expand can be _false_
//
// during prop's eval phase, this isn't reached, as it parses expressions
// with allowItems=false, so no ItemReferences are created at all
//
// at other times, item refs have already been expanded, so expand: false
internal string ConvertToString (Expression transform, ExpressionOptions options)
{
return GetItemSpecFromTransform (transform, options);
}
void AddAndRemoveMetadata (Project project, BuildItem item)
{
if (!string.IsNullOrEmpty (removeMetadata)) {
var removeExpr = new Expression ();
removeExpr.Parse (removeMetadata, ParseOptions.AllowItemsNoMetadataAndSplit);
var removeSpec = (string[]) removeExpr.ConvertTo (
project, typeof (string[]), ExpressionOptions.ExpandItemRefs);
foreach (var remove in removeSpec) {
item.DeleteMetadata (remove);
}
}
if (!string.IsNullOrEmpty (keepMetadata)) {
var keepExpr = new Expression ();
keepExpr.Parse (keepMetadata, ParseOptions.AllowItemsNoMetadataAndSplit);
var keepSpec = (string[]) keepExpr.ConvertTo (
project, typeof (string[]), ExpressionOptions.ExpandItemRefs);
var metadataNames = new string [item.evaluatedMetadata.Count];
item.evaluatedMetadata.Keys.CopyTo (metadataNames, 0);
foreach (string name in metadataNames) {
if (!keepSpec.Contains (name))
item.DeleteMetadata (name);
}
}
}
protected void ParseAttribute (string value)
{
Expression expr = new Expression ();
expr.Parse (value, ParseOptions.AllowItemsMetadataAndSplit);
foreach (object o in expr.Collection) {
MetadataReference mr = o as MetadataReference;
if (mr != null) {
consumedMetadataReferences.Add (mr);
if (mr.IsQualified)
consumedQMetadataReferences.Add (mr);
else
consumedUQMetadataReferences.Add (mr);
continue;
}
ItemReference ir = o as ItemReference;
if (ir != null) {
BuildItemGroup group;
if (!project.TryGetEvaluatedItemByNameBatched (ir.ItemName, out group))
if (!project.EvaluatedItemsByName.TryGetValue (ir.ItemName, out group))
group = new BuildItemGroup ();
consumedItemsByName [ir.ItemName] = group;
}
}
}
List <Target> GetDependencies ()
{
List <Target> list = new List <Target> ();
Target t;
string [] targetNames;
Expression deps;
if (DependsOnTargets != String.Empty) {
deps = new Expression ();
deps.Parse (DependsOnTargets, ParseOptions.AllowItemsNoMetadataAndSplit);
targetNames = (string []) deps.ConvertTo (Project, typeof (string []));
foreach (string dep_name in targetNames) {
t = project.Targets [dep_name.Trim ()];
if (t == null)
throw new InvalidProjectFileException (String.Format (
"Target '{0}', a dependency of target '{1}', not found.",
dep_name.Trim (), Name));
list.Add (t);
}
}
return list;
}
bool IBuildTask.ResolveOutputItems ()
{
var taskEngine = new TaskEngine (parentTarget.Project, null, Type);
taskEngine.PublishOutput (taskElement, l => {
var pv = GetParameterValue (l.Name);
Expression exp = new Expression ();
exp.Parse (pv, ParseOptions.AllowItemsNoMetadataAndSplit);
return exp.ConvertTo (parentTarget.Project, l.PropertyType);
});
return true;
}
bool BuildTargetNeeded ()
{
ITaskItem [] inputFiles;
ITaskItem [] outputFiles;
DateTime oldestInput, youngestOutput;
if (String.IsNullOrEmpty (inputs.Trim ()))
return true;
if (String.IsNullOrEmpty (outputs.Trim ()))
return true;
Expression e = new Expression ();
e.Parse (inputs, ParseOptions.AllowItemsMetadataAndSplit);
inputFiles = (ITaskItem[]) e.ConvertTo (project, typeof (ITaskItem[]), ExpressionOptions.ExpandItemRefs);
e = new Expression ();
e.Parse (outputs, ParseOptions.AllowItemsMetadataAndSplit);
outputFiles = (ITaskItem[]) e.ConvertTo (project, typeof (ITaskItem[]), ExpressionOptions.ExpandItemRefs);
if (inputFiles == null || inputFiles.Length == 0)
return false;
//FIXME: if input specified, then output must also
// be there, add tests and confirm
if (outputFiles == null || outputFiles.Length == 0)
return false;
if (File.Exists (inputFiles [0].ItemSpec))
oldestInput = File.GetLastWriteTime (inputFiles [0].ItemSpec);
else
return true;
if (File.Exists (outputFiles [0].ItemSpec))
youngestOutput = File.GetLastWriteTime (outputFiles [0].ItemSpec);
else
return true;
foreach (ITaskItem item in inputFiles) {
string file = item.ItemSpec;
if (file.Trim () == String.Empty)
continue;
if (File.Exists (file.Trim ())) {
if (File.GetLastWriteTime (file.Trim ()) > oldestInput)
oldestInput = File.GetLastWriteTime (file.Trim ());
} else {
return true;
}
}
foreach (ITaskItem item in outputFiles) {
string file = item.ItemSpec;
if (file.Trim () == String.Empty)
continue;
if (File.Exists (file.Trim ())) {
if (File.GetLastWriteTime (file.Trim ()) < youngestOutput)
youngestOutput = File.GetLastWriteTime (file.Trim ());
} else
return true;
}
if (oldestInput > youngestOutput)
return true;
else
return false;
}
void AddMetadata (string name, string value)
{
var options = IsDynamic ?
ParseOptions.AllowItemsMetadataAndSplit : ParseOptions.AllowItemsNoMetadataAndSplit;
if (parent_item_group != null) {
Expression e = new Expression ();
e.Parse (value, options);
evaluatedMetadata [name] = (string) e.ConvertTo (parent_item_group.ParentProject,
typeof (string), ExpressionOptions.ExpandItemRefs);
} else
evaluatedMetadata [name] = MSBuildUtils.Unescape (value);
unevaluatedMetadata [name] = value;
}
// FIXME: in some situations items might not be allowed
static Token EvaluateToken (Token token, Project context)
{
Expression oe = new Expression ();
oe.Parse (token.Value, ParseOptions.AllowItemsMetadataAndSplit);
return new Token ((string) oe.ConvertTo (context, typeof (string)), token.Type);
}
internal void Evaluate (Project project, bool evaluatedTo)
{
// FIXME: maybe make Expression.ConvertTo (null, ...) work as MSBuildUtils.Unescape ()?
if (project == null) {
this.finalItemSpec = MSBuildUtils.Unescape (Include);
return;
}
foreach (XmlNode xn in itemElement.ChildNodes) {
XmlElement xe = xn as XmlElement;
if (xe != null && ConditionParser.ParseAndEvaluate (xe.GetAttribute ("Condition"), project))
AddMetadata (xe.Name, xe.InnerText);
}
if (IsDynamic) {
if (!evaluatedTo)
return;
if (!string.IsNullOrEmpty (Remove)) {
RemoveItems (project);
return;
}
if (string.IsNullOrEmpty (Include)) {
UpdateMetadata (project);
return;
}
}
DirectoryScanner directoryScanner;
Expression includeExpr, excludeExpr;
ITaskItem[] includes, excludes;
var options = IsDynamic ?
ParseOptions.AllowItemsMetadataAndSplit : ParseOptions.AllowItemsNoMetadataAndSplit;
includeExpr = new Expression ();
includeExpr.Parse (Include, options);
excludeExpr = new Expression ();
excludeExpr.Parse (Exclude, options);
includes = (ITaskItem[]) includeExpr.ConvertTo (project, typeof (ITaskItem[]),
ExpressionOptions.ExpandItemRefs);
excludes = (ITaskItem[]) excludeExpr.ConvertTo (project, typeof (ITaskItem[]),
ExpressionOptions.ExpandItemRefs);
this.finalItemSpec = (string) includeExpr.ConvertTo (project, typeof (string),
ExpressionOptions.ExpandItemRefs);
directoryScanner = new DirectoryScanner ();
directoryScanner.Includes = includes;
directoryScanner.Excludes = excludes;
if (project.FullFileName != String.Empty)
directoryScanner.BaseDirectory = new DirectoryInfo (Path.GetDirectoryName (project.FullFileName));
else
directoryScanner.BaseDirectory = new DirectoryInfo (Directory.GetCurrentDirectory ());
directoryScanner.Scan ();
foreach (ITaskItem matchedItem in directoryScanner.MatchedItems)
AddEvaluatedItem (project, evaluatedTo, matchedItem);
}
bool BuildTargetNeeded (out string reason, out bool skipCompletely)
{
reason = String.Empty;
ITaskItem [] inputFiles;
ITaskItem [] outputFiles;
DateTime youngestInput, oldestOutput;
skipCompletely = false;
if (String.IsNullOrEmpty (inputs.Trim ())) {
return true;
}
if (String.IsNullOrEmpty (outputs.Trim ())) {
project.ParentEngine.LogError ("Target {0} has inputs but no outputs specified.", name);
return true;
}
Expression e = new Expression ();
e.Parse (inputs, ParseOptions.AllowItemsMetadataAndSplit);
inputFiles = (ITaskItem[]) e.ConvertTo (project, typeof (ITaskItem[]), ExpressionOptions.ExpandItemRefs);
e = new Expression ();
e.Parse (outputs, ParseOptions.AllowItemsMetadataAndSplit);
outputFiles = (ITaskItem[]) e.ConvertTo (project, typeof (ITaskItem[]), ExpressionOptions.ExpandItemRefs);
if (outputFiles == null || outputFiles.Length == 0) {
reason = String.Format ("No output files were specified for target {0}, skipping.", name);
return false;
}
if (inputFiles == null || inputFiles.Length == 0) {
skipCompletely = true;
reason = String.Format ("No input files were specified for target {0}, skipping.", name);
return false;
}
youngestInput = DateTime.MinValue;
oldestOutput = DateTime.MaxValue;
string youngestInputFile, oldestOutputFile;
youngestInputFile = oldestOutputFile = String.Empty;
foreach (ITaskItem item in inputFiles) {
string file = item.ItemSpec.Trim ();
if (file.Length == 0)
continue;
if (!File.Exists (file)) {
reason = String.Format ("Target {0} needs to be built as input file '{1}' does not exist.", name, file);
return true;
}
DateTime lastWriteTime = File.GetLastWriteTime (file);
if (lastWriteTime > youngestInput) {
youngestInput = lastWriteTime;
youngestInputFile = file;
}
}
foreach (ITaskItem item in outputFiles) {
string file = item.ItemSpec.Trim ();
if (file.Length == 0)
continue;
if (!File.Exists (file)) {
reason = String.Format ("Target {0} needs to be built as output file '{1}' does not exist.", name, file);
return true;
}
DateTime lastWriteTime = File.GetLastWriteTime (file);
if (lastWriteTime < oldestOutput) {
oldestOutput = lastWriteTime;
oldestOutputFile = file;
}
}
if (youngestInput > oldestOutput) {
reason = String.Format ("Target {0} needs to be built as input file '{1}' is newer than output file '{2}'",
name, youngestInputFile, oldestOutputFile);
return true;
}
return false;
}
void RemoveItems (Project project)
{
BuildItemGroup group;
if (!project.TryGetEvaluatedItemByNameBatched (Name, out group))
return;
var removeExpr = new Expression ();
removeExpr.Parse (Remove, ParseOptions.AllowItemsNoMetadataAndSplit);
var removes = (ITaskItem[]) removeExpr.ConvertTo (
project, typeof (ITaskItem[]), ExpressionOptions.ExpandItemRefs);
var directoryScanner = new DirectoryScanner ();
directoryScanner.Includes = removes;
if (project.FullFileName != String.Empty)
directoryScanner.BaseDirectory = new DirectoryInfo (Path.GetDirectoryName (project.FullFileName));
else
directoryScanner.BaseDirectory = new DirectoryInfo (Directory.GetCurrentDirectory ());
directoryScanner.Scan ();
foreach (ITaskItem matchedItem in directoryScanner.MatchedItems) {
group.RemoveItem (matchedItem);
}
}
// returns true, if the @result should be included in the values list
bool TryGetObjectFromString (string raw, Type type, out object result)
{
Expression e;
result = null;
e = new Expression ();
e.Parse (raw, ParseOptions.AllowItemsMetadataAndSplit);
// See rules in comment for 'Prepare'
string str = (string) e.ConvertTo (parentProject, typeof (string));
if (!type.IsArray && str == String.Empty)
return false;
if (str.Trim ().Length == 0 && type.IsArray &&
(type.GetElementType () == typeof (string) || type.GetElementType () == typeof (ITaskItem)))
return true;
result = e.ConvertTo (parentProject, type, ExpressionOptions.ExpandItemRefs);
return true;
}
internal ITaskItem ConvertToITaskItem (Expression transform, ExpressionOptions options)
{
TaskItem taskItem;
taskItem = new TaskItem (GetItemSpecFromTransform (transform, options), evaluatedMetadata);
return taskItem;
}
string EvaluatePath (string path)
{
var exp = new Expression ();
exp.Parse (path, ParseOptions.Split);
return (string) exp.ConvertTo (project, typeof (string));
}
internal void Evaluate ()
{
BuildProperty evaluated = new BuildProperty (Name, Value);
// In evaluate phase, properties are not expanded
Expression exp = new Expression ();
exp.Parse (Value, ParseOptions.None);
evaluated.finalValue = (string) exp.ConvertTo (parentProject, typeof (string),
ExpressionOptions.DoNotExpandItemRefs);
parentProject.EvaluatedProperties.AddProperty (evaluated);
}
bool BuildDependencies (out bool executeOnErrors)
{
executeOnErrors = false;
if (String.IsNullOrEmpty (DependsOnTargets))
return true;
var expr = new Expression ();
expr.Parse (DependsOnTargets, ParseOptions.AllowItemsNoMetadataAndSplit);
string [] targetNames = (string []) expr.ConvertTo (Project, typeof (string []));
bool result = BuildOtherTargets (targetNames,
tname => engine.LogError ("Target '{0}', a dependency of target '{1}', not found.",
tname, Name),
out executeOnErrors);
if (!result && executeOnErrors)
ExecuteOnErrors ();
return result;
}
internal ITaskItem[] ConvertToITaskItemArray (Project project, ExpressionOptions options)
{
if (converting) {
// found ref to @this while trying to ConvertToITaskItemArray
// for @this!
ITaskItem []items = new ITaskItem [1];
items [0] = new TaskItem (FinalValue);
return items;
}
converting = true;
try {
Expression exp = new Expression ();
// in non-evaluation phase, properties are always expanded
exp.Parse (FinalValue, ParseOptions.Split | (options == ExpressionOptions.ExpandItemRefs ?
ParseOptions.AllowItems : ParseOptions.None));
return (ITaskItem[]) exp.ConvertTo (project, typeof (ITaskItem[]), options);
} finally {
converting = false;
}
}
string EvaluateProjectPath (string file)
{
Expression exp;
exp = new Expression ();
exp.Parse (file, ParseOptions.Split);
return (string) exp.ConvertTo (project, typeof (string));
}
