public async Task SingleDesignTimeInput_Removed_ShouldntBeChanged()
{
var inputs = new DesignTimeInputs(new string[] { "File1.cs" }, new string[] { });
await VerifyOutput(2, () =>
{
SendDesignTimeInputs(inputs);
SendDesignTimeInputs(new DesignTimeInputs(new string[] { }, new string[] { }));
});
// First update should include the file
Assert.Single(_outputProduced[0].ChangedInputs);
Assert.Single(_outputProduced[0].Inputs);
Assert.Empty(_outputProduced[0].SharedInputs);
Assert.Equal("File1.cs", _outputProduced[0].ChangedInputs[0].File);
Assert.False(_outputProduced[0].ChangedInputs[0].IgnoreFileWriteTime);
// Second shouldn't
Assert.Empty(_outputProduced[1].ChangedInputs);
Assert.Empty(_outputProduced[1].Inputs);
Assert.Empty(_outputProduced[1].SharedInputs);
}
public async Task SingleDesignTimeInput_Changes_ChangedTwice()
{
var inputs = new DesignTimeInputs(new string[] { "File1.cs" }, new string[] { });
await VerifyOutput(2, () =>
{
SendDesignTimeInputs(inputs);
SendFileChange("File1.cs");
});
Assert.Single(_outputProduced[0].ChangedInputs);
Assert.Single(_outputProduced[0].Inputs);
Assert.Empty(_outputProduced[0].SharedInputs);
Assert.Equal("File1.cs", _outputProduced[0].ChangedInputs[0].File);
Assert.False(_outputProduced[0].ChangedInputs[0].IgnoreFileWriteTime);
Assert.Single(_outputProduced[1].ChangedInputs);
Assert.Single(_outputProduced[1].Inputs);
Assert.Empty(_outputProduced[1].SharedInputs);
Assert.Equal("File1.cs", _outputProduced[1].ChangedInputs[0].File);
Assert.False(_outputProduced[1].ChangedInputs[0].IgnoreFileWriteTime);
}
public async Task SingleDesignTimeInput_AnotherAdded_OneInEachChange()
{
var inputs = new DesignTimeInputs(new string[] { "File1.cs" }, new string[] { });
await VerifyOutput(2, () =>
{
SendDesignTimeInputs(new DesignTimeInputs(new string[] { "File1.cs" }, new string[] { }));
SendDesignTimeInputs(new DesignTimeInputs(new string[] { "File1.cs", "File2.cs" }, new string[] { }));
});
Assert.Single(_outputProduced[0].ChangedInputs);
Assert.Single(_outputProduced[0].Inputs);
Assert.Empty(_outputProduced[0].SharedInputs);
Assert.Equal("File1.cs", _outputProduced[0].ChangedInputs[0].File);
Assert.False(_outputProduced[0].ChangedInputs[0].IgnoreFileWriteTime);
Assert.Single(_outputProduced[1].ChangedInputs);
Assert.Equal(2, _outputProduced[1].Inputs.Count);
Assert.Empty(_outputProduced[1].SharedInputs);
Assert.Equal("File2.cs", _outputProduced[1].ChangedInputs[0].File);
Assert.False(_outputProduced[1].ChangedInputs[0].IgnoreFileWriteTime);
}
internal void ProcessDataflowChanges(IProjectVersionedValue <ValueTuple <DesignTimeInputs, IProjectSubscriptionUpdate> > input)
{
DesignTimeInputs inputs = input.Value.Item1;
IProjectChangeDescription configChanges = input.Value.Item2.ProjectChanges[ConfigurationGeneral.SchemaName];
// This can't change while we're running, but let's use a local so you don't have to take my word for it
DesignTimeInputsDelta?previousState = _currentState;
var changedInputs = new List <DesignTimeInputFileChange>();
// On the first call where we receive design time inputs we queue compilation of all of them, knowing that we'll only compile if the file write date requires it
if (previousState == null)
{
AddAllInputsToQueue(false);
}
else
{
// If its not the first call...
// If a new shared design time input is added, we need to recompile everything regardless of source file modified date
// because it could be an old file that is being promoted to a shared input
if (inputs.SharedInputs.Except(previousState.SharedInputs, StringComparers.Paths).Any())
{
AddAllInputsToQueue(true);
}
// If the namespace or output path inputs have changed, then we recompile every file regardless of date
else if (configChanges.Difference.ChangedProperties.Contains(ConfigurationGeneral.RootNamespaceProperty) ||
configChanges.Difference.ChangedProperties.Contains(ConfigurationGeneral.ProjectDirProperty) ||
configChanges.Difference.ChangedProperties.Contains(ConfigurationGeneral.IntermediateOutputPathProperty))
{
AddAllInputsToQueue(true);
}
else
{
// Otherwise we just queue any new design time inputs, and still do date checks
foreach (string file in inputs.Inputs.Except(previousState.Inputs, StringComparers.Paths))
{
changedInputs.Add(new DesignTimeInputFileChange(file, ignoreFileWriteTime: false));
}
}
}
string tempPEOutputPath;
// Make sure we have the up to date output path
string basePath = configChanges.After.Properties[ConfigurationGeneral.ProjectDirProperty];
string objPath = configChanges.After.Properties[ConfigurationGeneral.IntermediateOutputPathProperty];
try
{
tempPEOutputPath = Path.Combine(basePath, objPath, "TempPE");
}
catch (ArgumentException)
{
// if the path is bad, then we presume we wouldn't be able to act on any files anyway
// so we can just clear _latestDesignTimeInputs to ensure file changes aren't processed, and return.
// If the path is ever fixed this block will trigger again and all will be right with the world.
_currentState = null;
return;
}
// This is our only update to current state, and data flow protects us from overlaps. File changes don't update state
_currentState = new DesignTimeInputsDelta(inputs.Inputs, inputs.SharedInputs, changedInputs, tempPEOutputPath);
PostToOutput(_currentState);
void AddAllInputsToQueue(bool ignoreFileWriteTime)
{
foreach (string file in inputs.Inputs)
{
changedInputs.Add(new DesignTimeInputFileChange(file, ignoreFileWriteTime));
}
}
}
private static DesignTimeInputSnapshot?GenerateOutputData(
DesignTimeInputSnapshot?previousState,
IProjectVersionedValue <ValueTuple <DesignTimeInputs, IProjectSubscriptionUpdate> > input)
{
DesignTimeInputs inputs = input.Value.Item1;
if (!input.Value.Item2.ProjectChanges.TryGetValue(ConfigurationGeneral.SchemaName, out IProjectChangeDescription configChanges))
{
// If this isn't an update we can deal with, just ignore it
return(null);
}
var changedInputs = new List <DesignTimeInputFileChange>();
// On the first call where we receive design time inputs we queue compilation of all of them, knowing that we'll only compile if the file write date requires it
if (previousState == null)
{
AddAllInputsToQueue(false);
}
else
{
// If its not the first call...
// If a new shared design time input is added, we need to recompile everything regardless of source file modified date
// because it could be an old file that is being promoted to a shared input
if (inputs.SharedInputs.Except(previousState.SharedInputs, StringComparers.Paths).Any())
{
AddAllInputsToQueue(true);
}
// If the namespace or output path inputs have changed, then we recompile every file regardless of date
else if (configChanges.Difference.ChangedProperties.Contains(ConfigurationGeneral.RootNamespaceProperty) ||
configChanges.Difference.ChangedProperties.Contains(ConfigurationGeneral.ProjectDirProperty) ||
configChanges.Difference.ChangedProperties.Contains(ConfigurationGeneral.IntermediateOutputPathProperty))
{
AddAllInputsToQueue(true);
}
else
{
// Otherwise we just queue any new design time inputs, and still do date checks
foreach (string file in inputs.Inputs.Except(previousState.Inputs, StringComparers.Paths))
{
changedInputs.Add(new DesignTimeInputFileChange(file, ignoreFileWriteTime: false));
}
}
}
string tempPEOutputPath;
// Make sure we have the up to date output path. If either of these don't exist, they will be null and we'll handle the ArgumentException below
string?basePath = configChanges.After.Properties.GetValueOrDefault(ConfigurationGeneral.ProjectDirProperty);
string?objPath = configChanges.After.Properties.GetValueOrDefault(ConfigurationGeneral.IntermediateOutputPathProperty);
try
{
tempPEOutputPath = Path.Combine(basePath, objPath, "TempPE");
}
catch (ArgumentException)
{
// if the path is bad, or we couldn't get part of it, then we presume we wouldn't be able to act on any files
// so we can just clear _currentState to ensure file changes aren't processed, and return.
// If the path is ever fixed this block will trigger again and all will be right with the world.
return(null);
}
// This is our only update to current state, and data flow protects us from overlaps. File changes don't update state
return(new DesignTimeInputSnapshot(inputs.Inputs, inputs.SharedInputs, changedInputs, tempPEOutputPath));
void AddAllInputsToQueue(bool ignoreFileWriteTime)
{
foreach (string file in inputs.Inputs)
{
changedInputs.Add(new DesignTimeInputFileChange(file, ignoreFileWriteTime));
}
}
}