Fix CI: Resolve all Clippy warnings and improve code quality

- Fixed redundant continue statements in loops
- Replaced manual string prefix stripping with strip_prefix method
- Fixed wildcard pattern that covered other patterns
- Removed redundant clone and unnecessary return value
- Used format string interpolation for cleaner code
- Removed unused imports and variables
- All Clippy checks now pass with -D warnings

tty-fwd/src/api_server.rs

@@ -681,7 +681,10 @@ fn handle_session_snapshot(control_path: &Path, path: &str) -> Response<String>
             let original_lines = content.lines().count();
             let optimized_lines = optimized_content.lines().count();
             let reduction = if original_lines > 0 {
-                (original_lines - optimized_lines) as f64 / original_lines as f64 * 100.0
+                #[allow(clippy::cast_precision_loss)]
+                {
+                    (original_lines - optimized_lines) as f64 / original_lines as f64 * 100.0
+                }
             } else {
                 0.0
             };
@@ -716,7 +719,7 @@ fn handle_session_snapshot(control_path: &Path, path: &str) -> Response<String>
 }
 
 fn optimize_snapshot_content(content: &str) -> String {
-    let lines: Vec<&str> = content.trim().split('\n').collect();
+    let lines: Vec<&str> = content.lines().collect();
     let mut header_line: Option<&str> = None;
     let mut all_events: Vec<&str> = Vec::new();
 
@@ -1177,11 +1180,17 @@ fn handle_multi_stream(control_path: &Path, req: &mut HttpRequest) {
         };
 
         if let Err(e) = watcher.watch(&control_path_clone, RecursiveMode::NonRecursive) {
-            println!("Failed to watch control directory {control_path_clone:?}: {e}");
+            println!(
+                "Failed to watch control directory {}: {e}",
+                control_path_clone.display()
+            );
             return;
         }
 
-        println!("Session discovery thread started, watching {control_path_clone:?}");
+        println!(
+            "Session discovery thread started, watching {}",
+            control_path_clone.display()
+        );
 
         // Also discover existing sessions at startup
         if let Ok(sessions) = sessions::list_sessions(&control_path_clone) {
@@ -1313,7 +1322,8 @@ fn handle_multi_stream(control_path: &Path, req: &mut HttpRequest) {
 
                     if let Err(e) = watcher.watch(parent_dir, RecursiveMode::NonRecursive) {
                         println!(
-                            "Failed to watch directory {parent_dir:?} for session {session_id_clone}: {e}"
+                            "Failed to watch directory {} for session {session_id_clone}: {e}",
+                            parent_dir.display()
                         );
                         return;
                     }

tty-fwd/src/main.rs

@@ -194,7 +194,7 @@ fn main() -> Result<(), anyhow::Error> {
     // Handle serve command
     if let Some(addr) = serve_address {
         // Setup signal handler to update session statuses on shutdown
-        crate::term_socket::setup_shutdown_handler()?;
+        crate::term_socket::setup_shutdown_handler();
 
         ctrlc::set_handler(move || {
             println!("Ctrl-C received, updating session statuses and exiting...");

tty-fwd/src/protocol.rs

@@ -352,8 +352,8 @@ impl StreamWriter {
                 // Skip parameter and intermediate characters
                 while pos < buf.len() {
                     match buf[pos] {
-                        0x30..=0x3F => pos += 1,             // Parameter characters 0-9 : ; < = > ?
+                        // Parameter characters 0-9 : ; < = > ? and Intermediate characters
-                        0x20..=0x2F => pos += 1, // Intermediate characters (space) ! " # $ % & ' ( ) * + , - . /
+                        0x20..=0x3F => pos += 1,
                         0x40..=0x7E => return Some(pos + 1), // Final character @ A-Z [ \ ] ^ _ ` a-z { | } ~
                         _ => return Some(pos),               // Invalid sequence, stop here
                     }
@@ -377,8 +377,6 @@ impl StreamWriter {
             }
 
             // Simple two-character sequences: ESC letter
-            0x40..=0x7E => Some(2),
-
             // Other escape sequences - assume two characters for now
             _ => Some(2),
         }

tty-fwd/src/term_socket.rs

@@ -11,8 +11,6 @@ use std::ffi::CString;
 use std::io::{Read, Write};
 use std::os::unix::io::{AsRawFd, RawFd};
 use std::os::unix::net::UnixStream;
-use std::sync::atomic::{AtomicBool, Ordering};
-use std::sync::Arc;
 use uuid::Uuid;
 
 /// Spawn a terminal session with PTY fallback
@@ -157,11 +155,11 @@ fn spawn_via_pty(command: &[String], working_dir: Option<&str>) -> Result<String
             let expanded_working_dir = if let Some(dir) = working_dir {
                 if dir == "~/" || dir == "~" {
                     std::env::var("HOME").unwrap_or_else(|_| "/".to_string())
-                } else if dir.starts_with("~/") {
+                } else if let Some(stripped) = dir.strip_prefix("~/") {
                     format!(
                         "{}/{}",
                         std::env::var("HOME").unwrap_or_else(|_| "/".to_string()),
-                        &dir[2..]
+                        stripped
                     )
                 } else {
                     dir.to_string()
@@ -256,11 +254,11 @@ fn spawn_via_pty(command: &[String], working_dir: Option<&str>) -> Result<String
             if let Some(dir) = working_dir {
                 let expanded_dir = if dir == "~/" || dir == "~" {
                     std::env::var("HOME").unwrap_or_else(|_| "/".to_string())
-                } else if dir.starts_with("~/") {
+                } else if let Some(stripped) = dir.strip_prefix("~/") {
                     format!(
                         "{}/{}",
                         std::env::var("HOME").unwrap_or_else(|_| "/".to_string()),
-                        &dir[2..]
+                        stripped
                     )
                 } else {
                     dir.to_string()
@@ -406,7 +404,7 @@ fn handle_pty_session(
             0 => {
                 eprintln!("PTY closed (EOF), updating session status");
                 // Update session status to exited
-                let session_json_path = format!("{}/session.json", session_dir);
+                let session_json_path = format!("{session_dir}/session.json");
                 if let Ok(content) = std::fs::read_to_string(&session_json_path) {
                     if let Ok(mut session_info) =
                         serde_json::from_str::<serde_json::Value>(&content)
@@ -457,7 +455,6 @@ fn handle_stdin_to_pty(master_fd: RawFd, stdin_path: &str) -> Result<()> {
             Ok(0) => {
                 // No data available, sleep briefly to avoid busy waiting
                 std::thread::sleep(std::time::Duration::from_millis(10));
-                continue;
             }
             Ok(n) => {
                 // Write to PTY master using libc::write
@@ -471,7 +468,6 @@ fn handle_stdin_to_pty(master_fd: RawFd, stdin_path: &str) -> Result<()> {
             Err(e) if e.kind() == std::io::ErrorKind::WouldBlock => {
                 // No data available, sleep briefly
                 std::thread::sleep(std::time::Duration::from_millis(10));
-                continue;
             }
             Err(e) => {
                 eprintln!("Error reading from stdin FIFO: {e}");
@@ -530,23 +526,16 @@ pub fn update_all_sessions_to_exited() -> Result<()> {
 }
 
 /// Setup signal handler to cleanup sessions on shutdown
-pub fn setup_shutdown_handler() -> Result<()> {
+pub fn setup_shutdown_handler() {
-    let shutdown = Arc::new(AtomicBool::new(false));
-    let shutdown_clone = shutdown.clone();
-
     std::thread::spawn(move || {
         let mut signals =
-            Signals::new(&[SIGTERM, SIGINT]).expect("Failed to create signals iterator");
+            Signals::new([SIGTERM, SIGINT]).expect("Failed to create signals iterator");
 
-        for sig in signals.forever() {
+        if let Some(sig) = signals.forever().next() {
-            eprintln!("Received signal {:?}, updating session statuses...", sig);
+            eprintln!("Received signal {sig:?}, updating session statuses...");
             if let Err(e) = update_all_sessions_to_exited() {
-                eprintln!("Failed to update session statuses: {}", e);
+                eprintln!("Failed to update session statuses: {e}");
             }
-            shutdown_clone.store(true, Ordering::Relaxed);
-            break;
         }
     });
-
-    Ok(())
 }