feat!: Migrate samples/chess-server to examples

which removes it as workspace and allows cargo to index it.

Cargo.toml

@@ -11,6 +11,5 @@ members = [
     "lib",
     "integration",
     "samples/demo-server",
-    "samples/chess-server",
     "tools/certificate-creator"
 ]

README.md

@@ -72,7 +72,7 @@ The full list of samples:
 1. [`simple-server`](lib/examples/simple-server) - an OPC UA server that adds 4 variables v1, v2, v3 and v4 and updates them from a timer via push and pull mechanisms.
 2. [`simple-client`](lib/examples/simple-client) - an OPC UA client that connects to a server and subscribes to the values of v1, v2, v3 and v4.
 3. [`discovery-client`](lib/examples/discovery-client) - an OPC UA client that connects to a discovery server and lists the servers registered on it.
-4. [`chess-server`](samples/chess-server) - an OPC UA server that connects to a chess engine as its back end and updates variables representing the state of the game.
+4. [`chess-server`](lib/examples/chess-server) - an OPC UA server that connects to a chess engine as its back end and updates variables representing the state of the game.
 5. [`demo-server`](samples/demo-server) - an OPC UA server that is more complex than the simple server and can be used for compliance testing.
 6. [`mqtt-client`](lib/examples/mqtt-client) - an OPC UA client that subscribes to some values and publishes them to an MQTT broker.
 7. [`event-client`](lib/examples/event-client) - an OPC UA client that will connect to a server and subscribe to alarms / events.

lib/Cargo.toml

@@ -82,7 +82,8 @@ serde_json = "1.0"
 opcua = { path = ".", features = ["console-logging"] }
 
 # Examples
-## discovery-client, event-client, mqtt-client, simple-client
+## chess-server, discovery-client, event-client, mqtt-client, simple-client
 pico-args = "0.5"
 rumqttc = "0.23"
 tokio = { version = "1", features = ["full"] }
+uci = "0.1.1"

samples/chess-server/README.md → lib/examples/chess-server/README.md

@@ -5,7 +5,7 @@ Chess is played to standard rules with castling and en passant. If the game play
 a piece being taken or a pawn advanced, the game is reset.
 
 ```
-cargo run
+cargo run --example chess-server
 ```
 
 Connect to the server with this url `opc.tcp://localhost:1234`.

samples/chess-server/src/main.rs → lib/examples/chess-server/main.rs

@@ -42,7 +42,7 @@ fn main() {
     let game = Arc::new(Mutex::new(game::Game::new(&engine_path)));
 
     // Create an OPC UA server with sample configuration and default node set
-    let server = Server::new(ServerConfig::load(&PathBuf::from("../server.conf")).unwrap());
+    let server = Server::new(ServerConfig::load(&PathBuf::from("samples/server.conf")).unwrap());
 
     let address_space = server.address_space();