void LoadTasks(MSBuildParserContext context, string label, string filename)
{
try {
var import = context.GetCachedOrParse(label, filename, null, File.GetLastWriteTimeUtc(filename));
AddImport(import);
} catch (Exception ex) {
LoggingService.LogError($"Error loading tasks file {filename}", ex);
}
}
public static MSBuildRootDocument Parse(
ITextSource textSource, string filePath, MSBuildRootDocument previous,
MSBuildSchemaProvider schemaProvider, IRuntimeInformation runtimeInfo,
ITaskMetadataBuilder taskBuilder,
CancellationToken token)
{
var xmlParser = new XmlTreeParser(new XmlRootState());
var(xdocument, _) = xmlParser.Parse(textSource.CreateReader());
var propVals = new PropertyValueCollector(true);
var doc = new MSBuildRootDocument(filePath)
{
XDocument = xdocument,
Text = textSource,
RuntimeInformation = runtimeInfo
};
var importedFiles = new HashSet <string> (StringComparer.OrdinalIgnoreCase);
if (filePath != null)
{
try {
doc.Schema = previous?.Schema ?? schemaProvider.GetSchema(filePath, null);
} catch (Exception ex) {
LoggingService.LogError("Error loading schema", ex);
}
importedFiles.Add(filePath);
}
var parseContext = new MSBuildParserContext(
runtimeInfo,
doc,
previous,
importedFiles,
filePath,
propVals,
taskBuilder,
schemaProvider,
token);
if (filePath != null)
{
doc.FileEvaluationContext = new MSBuildFileEvaluationContext(parseContext.RuntimeEvaluationContext, filePath, filePath);
}
else
{
doc.FileEvaluationContext = parseContext.RuntimeEvaluationContext;
}
string MakeRelativeMSBuildPathAbsolute(string path)
{
var dir = Path.GetDirectoryName(doc.Filename);
path = path.Replace('\\', Path.DirectorySeparatorChar);
return(Path.GetFullPath(Path.Combine(dir, path)));
}
Import TryImportFile(string label, string possibleFile)
{
try {
var fi = new FileInfo(possibleFile);
if (fi.Exists)
{
var imp = parseContext.GetCachedOrParse(label, possibleFile, null, fi.LastWriteTimeUtc);
doc.AddImport(imp);
return(imp);
}
} catch (Exception ex) when(parseContext.IsNotCancellation(ex))
{
LoggingService.LogError($"Error importing '{possibleFile}'", ex);
}
return(null);
}
Import TryImportSibling(string ifHasThisExtension, string thenTryThisExtension)
{
if (filePath == null)
{
return(null);
}
var extension = Path.GetExtension(filePath);
if (string.Equals(ifHasThisExtension, extension, StringComparison.OrdinalIgnoreCase))
{
var siblingFilename = Path.ChangeExtension(filePath, thenTryThisExtension);
return(TryImportFile("(implicit)", siblingFilename));
}
return(null);
}
void TryImportIntellisenseImports(MSBuildSchema schema)
{
foreach (var intellisenseImport in schema.IntelliSenseImports)
{
TryImportFile("(from schema)", MakeRelativeMSBuildPathAbsolute(intellisenseImport));
}
}
try {
//if this is a targets file, try to import the props _at the top_
var propsImport = TryImportSibling(".targets", ".props");
// this currently only happens in the root file
// it's a quick hack to allow files to get some basic intellisense by
// importing the files _that they themselves expect to be imported from_.
// we also try to load them from the sibling props, as a paired targets/props
// will likely share a schema file.
var schema = doc.Schema ?? propsImport?.Document?.Schema;
if (schema != null)
{
TryImportIntellisenseImports(doc.Schema);
}
doc.Build(xdocument, textSource, parseContext);
//if this is a props file, try to import the targets _at the bottom_
var targetsImport = TryImportSibling(".props", ".targets");
//and if we didn't load intellisense import already, try to load them from the sibling targets
if (schema == null && targetsImport?.Document?.Schema != null)
{
TryImportIntellisenseImports(targetsImport.Document.Schema);
}
} catch (Exception ex) when(parseContext.IsNotCancellation(ex))
{
LoggingService.LogError($"Error building document '{filePath ?? "[unnamed]"}'", ex);
}
try {
var binpath = parseContext.RuntimeInformation.BinPath;
foreach (var t in Directory.GetFiles(binpath, "*.tasks"))
{
doc.LoadTasks(parseContext, "(core tasks)", t);
}
foreach (var t in Directory.GetFiles(binpath, "*.overridetasks"))
{
doc.LoadTasks(parseContext, "(core overridetasks)", t);
}
} catch (Exception ex) when(parseContext.IsNotCancellation(ex))
{
LoggingService.LogError("Error resolving tasks", ex);
}
try {
if (previous != null)
{
// try to recover some values that may have been collected from the imports, as they
// will not have been re-evaluated
var fx = previous.Frameworks.FirstOrDefault();
if (fx != null)
{
propVals.Collect("TargetFramework", fx.GetShortFolderName());
propVals.Collect("TargetFrameworkVersion", FrameworkInfoProvider.FormatDisplayVersion(fx.Version));
propVals.Collect("TargetFrameworkIdentifier", fx.Framework);
}
}
doc.Frameworks = propVals.GetFrameworks();
} catch (Exception ex) {
LoggingService.LogError("Error determining project framework", ex);
doc.Frameworks = new List <NuGetFramework> ();
}
try {
//this has to run in a second pass so that it runs after all the schemas are loaded
var validator = new MSBuildDocumentValidator();
validator.Run(doc.XDocument, textSource, doc);
} catch (Exception ex) when(parseContext.IsNotCancellation(ex))
{
LoggingService.LogError("Error in validation", ex);
}
return(doc);
}