theniceboy/tmux/scripts/watch_pane.sh
2026-04-09 10:58:24 -07:00

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#!/usr/bin/env bash
set -euo pipefail
pane_id="$1"
window_id="$2"
[[ -z "$pane_id" || -z "$window_id" ]] && exit 1
pane_pid=$(tmux display-message -p -t "$pane_id" '#{pane_pid}' 2>/dev/null || true)
[[ -z "$pane_pid" ]] && exit 0
pane_shell=$(ps -o comm= -p "$pane_pid" 2>/dev/null | sed 's|.*/||; s/^-//')
[[ -z "$pane_shell" ]] && exit 0
current_cmd=$(tmux display-message -p -t "$pane_id" '#{pane_current_command}' 2>/dev/null || true)
[[ -z "$current_cmd" ]] && exit 0
notify_completion() {
local tracker_bin message
tracker_bin="$HOME/.config/agent-tracker/bin/agent"
[[ -x "$tracker_bin" ]] || return 0
message="${current_cmd} finished"
"$tracker_bin" tracker command -window-id "$window_id" -pane "$pane_id" -summary "$message" notify >/dev/null 2>&1 || true
}
if [[ "$current_cmd" == "$pane_shell" ]]; then
exit 0
fi
tmux set -w -t "$window_id" @watching 1 2>/dev/null || true
tmux refresh-client -S
while true; do
sleep 1
watching=$(tmux show -wv -t "$window_id" @watching 2>/dev/null || true)
[[ "$watching" != "1" ]] && exit 0
cmd=$(tmux display-message -p -t "$pane_id" '#{pane_current_command}' 2>/dev/null || true)
if [[ -z "$cmd" || "$cmd" == "$pane_shell" ]]; then
break
fi
done
tmux set -wu -t "$window_id" @watching 2>/dev/null || true
tmux set -w -t "$window_id" @unread 1 2>/dev/null || true
tmux refresh-client -S
notify_completion