private void Roundtrip <T>(T args, params Func <T, string>[] fieldsToCompare)
where T : BuildEventArgs
{
var memoryStream = new MemoryStream();
var binaryWriter = new BinaryWriter(memoryStream);
var buildEventArgsWriter = new BuildEventArgsWriter(binaryWriter);
buildEventArgsWriter.Write(args);
long length = memoryStream.Length;
memoryStream.Position = 0;
var binaryReader = new BinaryReader(memoryStream);
var buildEventArgsReader = new BuildEventArgsReader(binaryReader, BinaryLogger.FileFormatVersion);
var deserializedArgs = (T)buildEventArgsReader.Read();
Assert.Equal(length, memoryStream.Position);
Assert.NotNull(deserializedArgs);
Assert.Equal(args.GetType(), deserializedArgs.GetType());
foreach (var field in fieldsToCompare)
{
var expected = field(args);
var actual = field(deserializedArgs);
Assert.Equal(expected, actual);
}
}
public void ReadingCorruptedStreamThrows()
{
var memoryStream = new MemoryStream();
var binaryWriter = new BinaryWriter(memoryStream);
var buildEventArgsWriter = new BuildEventArgsWriter(binaryWriter);
var args = new BuildStartedEventArgs(
"Message",
"HelpKeyword",
DateTime.Parse("3/1/2017 11:11:56 AM"));
buildEventArgsWriter.Write(args);
long length = memoryStream.Length;
for (long i = length - 1; i >= 0; i--) // try all possible places where a stream might end abruptly
{
memoryStream.SetLength(i); // pretend that the stream abruptly ends
memoryStream.Position = 0;
var binaryReader = new BinaryReader(memoryStream);
var buildEventArgsReader = new BuildEventArgsReader(binaryReader, BinaryLogger.FileFormatVersion);
Assert.Throws <EndOfStreamException>(() => buildEventArgsReader.Read());
}
}
double GetDurationFromBinLog(ProjectBuilder builder)
{
var duration = TimeSpan.Zero;
var binlog = Path.Combine(Root, builder.ProjectDirectory, "msbuild.binlog");
FileAssert.Exists(binlog);
using (var fileStream = File.OpenRead(binlog))
using (var gzip = new GZipStream(fileStream, CompressionMode.Decompress))
using (var binaryReader = new BinaryReader(gzip)) {
int fileFormatVersion = binaryReader.ReadInt32();
var buildReader = new BuildEventArgsReader(binaryReader, fileFormatVersion);
BuildEventArgs args;
var started = new Stack <DateTime> ();
while ((args = buildReader.Read()) != null)
{
if (args is ProjectStartedEventArgs projectStarted)
{
started.Push(projectStarted.Timestamp);
}
else if (args is ProjectFinishedEventArgs projectFinished)
{
duration += projectFinished.Timestamp - started.Pop();
}
}
}
if (duration == TimeSpan.Zero)
{
throw new InvalidDataException($"No project build duration found in {binlog}");
}
return(duration.TotalMilliseconds);
}
public IEnumerable <BuildEventArgs> ReadEvents()
{
if (_buildEvents != null)
{
return(_buildEvents);
}
var buildEventArgsReader = new BuildEventArgsReader(_binaryReader, _fileFormatVersion);
var buildEvents = new List <BuildEventArgs>();
while (true)
{
var buildEventArgs = buildEventArgsReader.Read();
if (buildEventArgs == null)
{
break;
}
buildEvents.Add(buildEventArgs);
}
_buildEvents = buildEvents;
return(_buildEvents);
}
private void ReaderThread(object obj)
{
if (!(obj is Tuple <NamedPipeServerStream, SolutionItem> tuple))
{
return;
}
NamedPipeServerStream npServerStream = tuple.Item1;
SolutionItem solutionItem = tuple.Item2;
GZipStream gzipStream = new GZipStream(npServerStream, CompressionMode.Decompress);
BinaryReader binaryReader = new BinaryReader(gzipStream);
int fileFormatVersion = binaryReader.ReadInt32();
if (fileFormatVersion > FileFormatVersion)
{
throw new NotSupportedException($"Unsupported log file format {fileFormatVersion}/{FileFormatVersion}");
}
BuildEventArgsReader reader = new BuildEventArgsReader(binaryReader, fileFormatVersion);
while (true)
{
BuildEventArgs instance = reader.Read();
if (instance == null)
{
break;
}
Type instanceType = instance.GetType();
string instanceTypeName = instanceType.Name;
if (!instanceTypeName.EndsWith("EventArgs"))
{
Trace.WriteLine($"Invalid build event: {instance}");
continue;
}
string handlerName = $"On{instanceTypeName.Substring(0, instanceTypeName.Length - 9)}";
if (!EventHandlers.TryGetValue(handlerName, out MethodInfo handler))
{
handler = EventHandlers[handlerName] = GetType().GetMethod(
handlerName, BindingFlags.Instance | BindingFlags.Public, null,
new[] { typeof(SolutionItem), instanceType }, null);
if (handler == null)
{
Trace.WriteLine($"#Missing handler: public void {handlerName}(SolutionItem solutionItem, {instanceTypeName} e)");
}
}
if (handler != null)
{
handler.Invoke(this, new object[] { solutionItem, instance });
}
}
}
double GetDurationFromBinLog(ProjectBuilder builder)
{
//TODO: BuildEventArgsReader.Read() returns null in .NET 6 Preview 2
// See: https://github.com/dotnet/msbuild/issues/6225
if (Builder.UseDotNet)
{
Assert.Ignore("Cannot currently parse .binlog files in .NET 6 Preview 2");
}
var duration = TimeSpan.Zero;
var binlog = Path.Combine(Root, builder.ProjectDirectory, "msbuild.binlog");
FileAssert.Exists(binlog);
using (var fileStream = File.OpenRead(binlog))
using (var gzip = new GZipStream(fileStream, CompressionMode.Decompress))
using (var binaryReader = new BinaryReader(gzip)) {
int fileFormatVersion = binaryReader.ReadInt32();
var buildReader = new BuildEventArgsReader(binaryReader, fileFormatVersion);
BuildEventArgs args;
var started = new Stack <DateTime> ();
while ((args = buildReader.Read()) != null)
{
if (args is ProjectStartedEventArgs projectStarted)
{
started.Push(projectStarted.Timestamp);
}
else if (args is ProjectFinishedEventArgs projectFinished)
{
duration += projectFinished.Timestamp - started.Pop();
}
}
}
if (duration == TimeSpan.Zero)
{
throw new InvalidDataException($"No project build duration found in {binlog}");
}
return(duration.TotalMilliseconds);
}
