Add interactive client terminal transport

crates/lazaret-client/src/production.rs

@@ -2,7 +2,7 @@ use std::collections::BTreeMap;
 use std::ffi::OsString;
 use std::fmt;
 use std::fs::File;
-use std::io::{self, Write};
+use std::io::{self, IsTerminal, Write};
 use std::os::fd::{AsFd, AsRawFd};
 use std::os::unix::fs::MetadataExt;
 use std::path::PathBuf;
@@ -27,7 +27,8 @@ use rustix::pipe::{PipeFlags, pipe_with};
 
 use crate::{
     BootstrapAcquisition, ClientBackend, ClientCommand, ClientError, ClientSessionIdentity,
-    ControlEndpoint, DomainStatus, execute_over_control_face_as,
+    ControlEndpoint, DomainStatus, execute_interactive_over_control_face_as,
+    execute_over_control_face_as,
 };
 
 #[derive(Debug)]
@@ -335,7 +336,17 @@ impl ClientBackend for ProductionClientBackend {
         stdout: &mut dyn Write,
         stderr: &mut dyn Write,
     ) -> Result<i32, ClientError<Self::Error>> {
-        let exit = execute_over_control_face_as(&endpoint, argv, stdout, stderr, &self.identity)?;
+        let exit = if std::io::stdin().is_terminal() && std::io::stdout().is_terminal() {
+            let mut terminal = crate::terminal::SystemTerminal::open()?;
+            execute_interactive_over_control_face_as(
+                &endpoint,
+                argv,
+                &mut terminal,
+                &self.identity,
+            )?
+        } else {
+            execute_over_control_face_as(&endpoint, argv, stdout, stderr, &self.identity)?
+        };
         if let Some(coordinator) = self.coordinator.take() {
             let status = coordinator
                 .reap()