80 lines
3.2 KiB
Bash
Executable File
80 lines
3.2 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -e
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script_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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# Use the current directory (set via display-popup -d)
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dir="${PWD:-$HOME}"
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# Use the directory basename as window name
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window_name=$dir
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# The client that opened the popup, recorded by the `bind A` binding. Its
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# current window is the root window <prefix>A was pressed in; the popup cannot
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# pass that through itself, so resolve it here before attaching.
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popup_client=$(tmux display-message -p '#{@agent_popup_client}' 2>/dev/null || true)
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origin_window=""
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if [ -n "$popup_client" ]; then
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origin_window=$(tmux list-clients -F $'#{client_name}\x1f#{window_id}' \
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| awk -v FS=$'\x1f' -v client="$popup_client" '$1 == client { print $2; exit }')
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fi
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# Create the agent session if it doesn't exist
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if ! tmux has-session -t agent; then
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tmux new-session -ds agent -c "$dir" -n "$window_name" "$script_dir/agent-cmd.sh"
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# Store the directory in a window option for later matching
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tmux set-window-option -t agent @agent_dir "$dir"
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fi
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# Apply session options on every invocation so updates propagate to live sessions
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tmux set-option -t agent status off
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tmux set-option -t agent remain-on-exit on
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tmux set-option -t agent default-command "$script_dir/agent-cmd.sh"
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# Session-scoped (not -g) so the root-session window changes agent-sync.sh makes
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# cannot re-trigger it.
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tmux set-hook -t agent session-window-changed "run -b '$script_dir/agent-sync.sh'"
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# Search for an existing window with matching directory
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target_window=""
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for window_id in $(tmux list-windows -t agent -F '#{window_id}'); do
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window_dir=$(tmux show-window-option -t "$window_id" -v @agent_dir 2>/dev/null || true)
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if [ "$window_dir" = "$dir" ]; then
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target_window="$window_id"
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break
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fi
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done
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if [ -n "$target_window" ]; then
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# Remember which root window this agent window came from, refreshed on every
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# invocation. Recorded *before* selecting, so the sync hook select-window
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# fires sees this invocation's origin rather than the previous one's.
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if [ -n "$origin_window" ]; then
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tmux set-window-option -t "$target_window" @agent_origin_window "$origin_window"
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fi
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# Select the existing window
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tmux select-window -t "$target_window"
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else
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# Create a new window; default-command runs agent-cmd.sh
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tmux new-window -t agent -c "$dir" -n "$window_name"
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# Store the directory in a window option for later matching
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tmux set-window-option -t agent @agent_dir "$dir"
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if [ -n "$origin_window" ]; then
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tmux set-window-option -t agent @agent_origin_window "$origin_window"
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fi
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fi
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# Prune windows whose recorded directory no longer exists. This runs after the
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# current directory's window is guaranteed to exist, so the session always
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# keeps at least one live window and is never killed out from under us.
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for window_id in $(tmux list-windows -t agent -F '#{window_id}'); do
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window_dir=$(tmux show-window-option -t "$window_id" -v @agent_dir 2>/dev/null || true)
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# Skip windows with no recorded directory rather than risk pruning them.
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[ -n "$window_dir" ] || continue
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if [ ! -d "$window_dir" ]; then
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tmux kill-window -t "$window_id" 2>/dev/null || true
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fi
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done
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# Attach to the session
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tmux attach-session -t agent
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