* Merge transport and hub protocols
- This change merges the transport and hub protocols into a single protocol. The
idea being that sockets in a purely streaming layer that sends frames from the underlying
transport. This makes things like TCP possible and doesn't impose a framing layer at the lowest
level. This will make it possible to build servers like kestrel on top of the TCP layer.
- The Message was removed from the lowest layer of the stack and pushed into the hubs layer. Hub invocations
are framed with what was before the transport protocol. Connections also need to state upfront if they support
binary or not. This will determine how data will be serialized to the specific connection.
- Changed the SSE parser and writer to be strictly SSE without any of the transport protocol specific
information.
- To ensure we aren't using types in the wrong layers
- Moved protocol logic into SignalR
- Socket.Abstractions is now the root of the universe, Sockets.Common will likely be removed
or turned into Sockets.Common.Http.
- Move SSE parser to Sockets.Client and SSE writer into Sockets.Http
- Moved tests into the appropriate test projects
- Updated the spec
* Remove the RequestId from DefaultConnectionContext
- Added a GetHttpContext() extension method on ConnectionContext
- Also fixed an issue not setting LastSeenUtc
Also did some spring cleaning on redundent references in the language
services package.
Note that the 'immutable' packages are now totally redundant with
Shell.15.0. You're supposed to use one or the other. Since our minimum VS
is 15, I just went with shell 15.0.
Now the VSIX project doesn't have many references in it.
In the event someone wants to move the obj/ folder, MSBuild will not be able to locate dotnet-watch's generated targets. dotnet-watch cannot automatically find the obj folder (#244), so this command line switch allows users to point dotnet-watch to the right location.