mirror of
https://github.com/l0ng-ai/tty7.git
synced 2026-09-22 00:02:23 +00:00
l0ng-ai
b4b860a042
Review findings on the in-place upgrade and per-pane history: - A failed exec now puts back everything it had staged: FD_CLOEXEC on the seat and every pty master (a child inheriting the seat keeps the flock held past the daemon's death, so no future daemon could seat itself), and the SIGPIPE disposition plus this thread's signal mask, both of which Command::exec resets on its way to the attempt — without this, the still-serving daemon dies on the first client that hangs up mid-write. - The adopting image restores close-on-exec on the seat and on every adopted master, so children it spawns later cannot hold a pty open past its pane, or the seat past the daemon. - The target binary is checked before the handoff gives anything up: native-SSH panes are hung up on the promise that this process is about to be replaced, and an exec that was never going to work must not collect on it. - The integration snippets raise HISTSIZE/HISTFILESIZE (bash) and SAVEHIST/HISTSIZE (zsh) for the pane's private history file. At their defaults the exit rewrite truncates the file below its own seed mark, which the merge-back rightly reads as "replaced under us" — silently losing the pane's commands for anyone with more history than the caps. - The restart dialog's promise now binds the action: where the copy said "nothing is interrupted", a failed handoff is reported instead of silently traded for the restart that kills every pane. - The scrollback writer checks the ring's mark before cloning it, so an idle pane no longer costs a full ring copy under the state lock every tick. Each behavioural fix carries a test that fails without it; the history truncation one was verified to fail with the snippet change removed.