debug: add console logging for terminal resize debugging

2026-05-24 19:44:21 +02:00
parent 738e01bb7c
commit 3092038e40
2 changed files with 28 additions and 12 deletions
@@ -164,6 +164,19 @@ class TerminalSession:
        ).encode()
        await self.write_input(stty_cmd)
        logger.debug(f"Sent stty resize to container for session {self.session_id}: {cols}x{rows}")
+        
+        # Docker exec doesn't forward PTY resize to the container process,
+        # so we need to explicitly set the size inside the container shell.
+        # Send on every resize so the container shell always matches the frontend.
+        # Use ANSI escape sequences to hide the command from view:
+        # - \x1b[?25l: hide cursor
+        # - \x1b[A\x1b[2K: move up and clear line
+        # - \x1b[?25h: show cursor
+        stty_cmd = (
+            f"\x1b[?25lstty cols {cols} rows {rows}\n\x1b[A\x1b[2K\x1b[?25h"
+        ).encode()
+        await self.write_input(stty_cmd)
+        logger.debug(f"Sent stty resize to container for session {self.session_id}: {cols}x{rows}")

    async def reset(self) -> None:
        """Reset the session by killing the process and clearing state."""