private Task <IProjectTreeServiceState> PublishTreeAsync(IProjectVersionedValue <IProjectSubscriptionUpdate> e)
{
try
{
// Make sure the tree matches the same version of the evaluation that we're handling
return(_projectTree.TreeService.PublishTreeAsync(e.ToRequirements(), blockDuringLoadingTree: true));
}
catch (ActiveProjectConfigurationChangedException)
{
// Project configuration changed while we blocked waiting for the tree, instead of trying to match
// exactly the same version, just give up and publish the latest tree. Note, don't need to handle
// ActiveProjectConfigurationChangedException as it will retry if the configuration changed.
return(_projectTree.TreeService.PublishLatestTreeAsync(blockDuringLoadingTree: true));
}
}
public async Task HandleAsync(IProjectVersionedValue <IProjectSubscriptionUpdate> e, IProjectChangeDescription projectChange)
{
Requires.NotNull(e, nameof(e));
Requires.NotNull(projectChange, nameof(projectChange));
IProjectChangeDiff diff = projectChange.Difference;
foreach (string filePath in diff.RemovedItems)
{
// Item includes are always relative to csproj/vbproj
string fullPath = _project.MakeRooted(filePath);
RemoveSourceFile(fullPath);
}
if (diff.AddedItems.Count > 0 || diff.RenamedItems.Count > 0 || diff.ChangedItems.Count > 0)
{
// Make sure the tree matches the same version of the evaluation that we're handling
IProjectTreeServiceState treeState = await _projectTree.TreeService.PublishTreeAsync(e.ToRequirements(), blockDuringLoadingTree : true)
.ConfigureAwait(true); // TODO: https://github.com/dotnet/roslyn-project-system/issues/353
foreach (string filePath in diff.AddedItems)
{
string fullPath = _project.MakeRooted(filePath);
AddSourceFile(fullPath, treeState);
}
foreach (KeyValuePair <string, string> filePaths in diff.RenamedItems)
{
string beforeFullPath = _project.MakeRooted(filePaths.Key);
string afterFullPath = _project.MakeRooted(filePaths.Value);
RemoveSourceFile(beforeFullPath);
AddSourceFile(afterFullPath, treeState);
}
foreach (string filePath in diff.ChangedItems)
{ // We add and then remove ChangedItems to handle Linked metadata changes
string fullPath = _project.MakeRooted(filePath);
RemoveSourceFile(fullPath);
AddSourceFile(fullPath);
}
}
}
