Use it to split pipe and stdin/out handling out of cmServer itself.
The server will shut down when it looses its connection to the client.
This has the nice property that a crashing client will cause the server
to terminate as the OS will close the connection on behave of the client.
Enable the server to support development with some helper tools:
You can now request debug information with statistics on how
long execution of a command took, how long it took to serialize
the JSON files, and how big the serialized JSON string is.
Also allow to dump results into a file.
Allow for experimental cmProtocolVersions, which will only ever get
listed if the server was started with the (undocumented)
"--experimental" flag.
Mark current protocol version 1.0 as experimental.
Enable the initial handshake of the client to complete the connection
to the server.
The handshake sets the protocol version that client and server will
use to talk to each other. The only way to change this is to quit the
server and start over.
CMake specific information is also set during the initial handshake.
Since cmake so far never had to change basic information about any project
while running, it was decided to keep this information static and
require a restart of the cmake server to change any of these.
Adds a bare-bones cmake-server implementation and makes it possible
to start that with "cmake -E server".
Communication happens via stdin/stdout for now.
Protocol is based on Json objects surrounded by magic strings
("[== CMake Server ==[" and "]== CMake Server ==]"), which simplifies
Json parsing significantly.
This patch also defines an interface used to implement different
versions of the protocol spoken by the server, but does not include
any protocol implementaiton.