fix(cli): Make --watcher CLEAR_SCREEN clear scrollback buffer as well…

… as visible screen (#25997) The --watch option should clear the screen scrollback buffer as well as the screen itself. On Ubuntu (22.04 Jammy) the 'clear' command generates "\x1B[H\x1B[2J\x1B[3J"; that is: - \E[H - cursor home - \E[2J - clear entire screen - \E[3J - clear entire screen & scrollback buffer. By contrast, Deno defined CLEAR_SCREEN as "\x1B[2J\x1B[1;1H", which fails to clear the scrollback buffer. The "\E[H\E[2J\E[3J" sequence works on MacOS (Sonoma) (using printf); I'm not able to test on Windows. Closes #26514
denoland · Oct 29, 2024 · 7a7232c · 7a7232c
1 parent 16f3c31
commit 7a7232c
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/cli/util/file_watcher.rs b/cli/util/file_watcher.rs
@@ -30,7 +30,7 @@ use tokio::sync::mpsc;
 use tokio::sync::mpsc::UnboundedReceiver;
 use tokio::time::sleep;
 
-const CLEAR_SCREEN: &str = "\x1B[2J\x1B[1;1H";
+const CLEAR_SCREEN: &str = "\x1B[H\x1B[2J\x1B[3J";
 const DEBOUNCE_INTERVAL: Duration = Duration::from_millis(200);
 
 struct DebouncedReceiver {