[+] prefix + ctrl + @ key binding for promoting windows to sessions

Author: TheSast

scripts/promote_window.sh

@@ -0,0 +1,43 @@
+#!/usr/bin/env bash
+
+CURRENT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+
+source "$CURRENT_DIR/helpers.sh"
+
+# global vars passed to the script as arguments
+CURRENT_SESSION_NAME="$1"
+CURRENT_WINDOW_ID="$2"
+CURRENT_WINDOW_NAME="$3"
+WINDOW_CURRENT_PATH="$4"
+
+number_of_windows() {
+	tmux list-windows -t "$CURRENT_SESSION_NAME" |
+		wc -l |
+		tr -d ' '
+}
+
+create_new_session() {
+	TMUX="" tmux -S "$(tmux_socket)" new-session -c "$WINDOW_CURRENT_PATH" -s "se-$CURRENT_WINDOW_NAME" -d -P -F "#{session_name}"
+}
+
+new_session_window_id() {
+	local session_name="$1"
+	tmux list-windows -t "$session_name" -F "#{window_id}"
+}
+
+promote_window() {
+	local session_name="$(create_new_session)"
+	local new_session_window_id="$(new_session_window_id "$session_name")"
+	tmux swap-window -s "$CURRENT_WINDOW_ID" -t "$new_session_window_id"
+	tmux kill-window -t "$new_session_window_id"
+	switch_to_session "$session_name"
+}
+
+main() {
+	if [ "$(number_of_windows)" -gt 1 ]; then
+		promote_window
+	else
+		display_message "Can't promote with only one window in session"
+	fi
+}
+main

sessionist.tmux

@@ -14,6 +14,9 @@ tmux_option_new="@sessionist-new"
 default_key_bindings_promote_pane="@"
 tmux_option_promote_pane="@sessionist-promote-pane"
 
+default_key_bindings_promote_window="C-@"
+tmux_option_promote_window="@sessionist-promote-window"
+
 default_key_bindings_join_pane="t"
 tmux_option_join_pane="@sessionist-join-pane"
 
@@ -59,6 +62,15 @@ set_promote_pane_binding() {
 	done
 }
 
+# "Promote" the current window to a new session
+set_promote_window_binding() {
+	local key_bindings=$(get_tmux_option "$tmux_option_promote_window" "$default_key_bindings_promote_window")
+	local key
+	for key in $key_bindings; do
+		tmux bind "$key" run "$CURRENT_DIR/scripts/promote_window.sh '#{session_name}' '#{window_id}' '#{window_name}' '#{pane_current_path}'"
+	done
+}
+
 set_join_pane_secondary_bindings() {
 	local secondary_key_table="$1"
 	local break_pane_flag="$2"
@@ -103,6 +115,7 @@ main() {
 	set_alternate_session_binding
 	set_new_session_binding
 	set_promote_pane_binding
+  set_promote_window_binding
 	set_join_pane_binding
 	set_kill_session_binding
 }