Gurty -> usable state

protocol/cli/src/error.rs

@@ -0,0 +1,38 @@
+use std::fmt;
+
+#[derive(Debug)]
+pub enum ServerError {
+    Io(std::io::Error),
+    InvalidPath(String),
+    InvalidConfiguration(String),
+    TlsConfiguration(String),
+    ServerStartup(String),
+}
+
+impl fmt::Display for ServerError {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        match self {
+            ServerError::Io(err) => write!(f, "I/O error: {}", err),
+            ServerError::InvalidPath(path) => write!(f, "Invalid path: {}", path),
+            ServerError::InvalidConfiguration(msg) => write!(f, "Configuration error: {}", msg),
+            ServerError::TlsConfiguration(msg) => write!(f, "TLS configuration error: {}", msg),
+            ServerError::ServerStartup(msg) => write!(f, "Server startup error: {}", msg),
+        }
+    }
+}
+
+impl std::error::Error for ServerError {}
+
+impl From<std::io::Error> for ServerError {
+    fn from(err: std::io::Error) -> Self {
+        ServerError::Io(err)
+    }
+}
+
+impl From<gurt::GurtError> for ServerError {
+    fn from(err: gurt::GurtError) -> Self {
+        ServerError::ServerStartup(err.to_string())
+    }
+}
+
+pub type Result<T> = std::result::Result<T, ServerError>;