fix(launchpad): prevent loops from terminal/sudo relaunching

node-launchpad/Cargo.toml

@@ -55,6 +55,7 @@ tracing-subscriber = { version = "0.3.17", features = ["env-filter", "serde"] }
 tui-input = "0.8.0"
 which = "6.0.1"
 nix = { version = "0.28.0", features = ["user"] }
+atty = "0.2.14"
 
 [build-dependencies]
 vergen = { version = "8.2.6", features = ["build", "git", "gitoxide", "cargo"] }

node-launchpad/src/bin/tui/main.rs

@@ -52,18 +52,31 @@ async fn tokio_main() -> Result<()> {
     Ok(())
 }
 
+fn is_running_in_terminal() -> bool {
+    atty::is(atty::Stream::Stdout)
+}
+
 #[tokio::main]
 async fn main() -> Result<()> {
     // now launch the terminal
     let terminal_type = terminal::detect_and_setup_terminal()?;
-    terminal::launch_terminal(&terminal_type)?;
+
+    if !is_running_in_terminal() || !terminal::is_running_root() {
+        terminal::launch_terminal(&terminal_type)?;
+
+        // early return for _this_ process.
+        // The spawned process will be sudo'd and run in the terminal,
+        // taking over stdout/stderr/stdin.
+        return Ok(());
+    }
 
     // Construct a local task set that can run `!Send` futures.
     let local = LocalSet::new();
     local
         .run_until(async {
             if let Err(e) = tokio_main().await {
                 eprintln!("{} failed:", env!("CARGO_PKG_NAME"));
+
                 Err(e)
             } else {
                 Ok(())

node-launchpad/src/bin/tui/terminal.rs

@@ -29,13 +29,13 @@ pub(crate) enum TerminalType {
 }
 
 #[cfg(not(windows))]
-fn is_running_root() -> bool {
+pub(crate) fn is_running_root() -> bool {
     use nix::unistd::geteuid;
     geteuid().is_root()
 }
 
 #[cfg(windows)]
-fn is_running_root() -> bool {
+pub(crate) fn is_running_root() -> bool {
     // Example: Attempt to read from a typically restricted system directory
     std::fs::read_dir("C:\\Windows\\System32\\config").is_ok()
 }