feat(irtt-cli): add optional tui output mode

crates/irtt-cli/Cargo.toml

@@ -17,10 +17,13 @@ doc = false
 [features]
 default = ["stats"]
 stats = ["dep:irtt-stats"]
+tui = ["stats", "dep:ratatui", "dep:crossterm"]
 
 [dependencies]
 clap = { version = "4.6.1", features = ["derive"] }
+crossterm = { version = "0.28.1", optional = true }
 ctrlc = "3.5.2"
 irtt-client.workspace = true
 irtt-proto.workspace = true
 irtt-stats = { workspace = true, optional = true }
+ratatui = { version = "0.29.0", optional = true }

crates/irtt-cli/src/lib.rs

@@ -89,7 +89,7 @@ pub struct CliArgs {
     #[arg(long)]
     pub loose: bool,
 
-    /// Output format: human, simple, machine, or rtt-us.
+    /// Output format.
     #[arg(long, value_enum, default_value_t = OutputMode::Human)]
     pub output: OutputMode,
 
@@ -201,6 +201,9 @@ pub enum OutputMode {
     Simple,
     /// RTT microseconds only.
     RttUs,
+    /// TUI dashboard with live cumulative statistics.
+    #[cfg(feature = "tui")]
+    Tui,
 }
 
 impl OutputMode {
@@ -320,6 +323,8 @@ pub fn format_event(event: &ClientEvent, mode: OutputMode) -> Option<String> {
         OutputMode::Human => Some(format_human_event(event, None)),
         OutputMode::Machine => Some(format_machine(event)),
         OutputMode::Simple => Some(format_simple(event)),
+        #[cfg(feature = "tui")]
+        OutputMode::Tui => None,
     }
 }
 

crates/irtt-cli/src/main.rs

@@ -18,6 +18,11 @@ use irtt_client::{Client, ClientEvent, OpenOutcome, RecvBudget};
 #[cfg(all(test, feature = "stats"))]
 use irtt_client::ClientTimestamp;
 
+#[cfg(feature = "tui")]
+mod tui;
+#[cfg(feature = "tui")]
+use tui::run_tui;
+
 #[cfg(feature = "stats")]
 use irtt_stats::{StatsCollector, StatsConfig};
 
@@ -66,6 +71,8 @@ fn run(args: CliArgs, shutdown_requested: &AtomicBool) -> Result<(), Box<dyn std
         OutputMode::Human | OutputMode::Machine | OutputMode::Simple | OutputMode::RttUs => {
             run_stream(args, shutdown_requested)
         }
+        #[cfg(feature = "tui")]
+        OutputMode::Tui => run_tui(args, shutdown_requested),
     }
 }