* usr/bin/byobu, usr/lib/byobu/include/Makefile.am,

usr/lib/byobu/include/tmux-detach-all-but-current-client,
  usr/share/byobu/keybindings/f-keys.tmux,
  usr/share/byobu/keybindings/f-keys.tmux.disable,
  usr/share/doc/byobu/help.tmux.txt: LP: #939870
  - add a new keybinding, Alt-F6, which detaches all other clients
    + often used to maximize your tmux session, since tmux reduces
      the available size of your terminal to the smallest connected
      session

debian/changelog

@@ -5,6 +5,15 @@ byobu (5.38) unreleased; urgency=low
   * usr/bin/byobu-launch:
     - append, rather than prepend, $PROMPT_COMMAND, as double-semi-colons
       are illegal, thanks to Christian Mäder in github for patch
+  * usr/bin/byobu, usr/lib/byobu/include/Makefile.am,
+    usr/lib/byobu/include/tmux-detach-all-but-current-client,
+    usr/share/byobu/keybindings/f-keys.tmux,
+    usr/share/byobu/keybindings/f-keys.tmux.disable,
+    usr/share/doc/byobu/help.tmux.txt: LP: #939870
+    - add a new keybinding, Alt-F6, which detaches all other clients
+      + often used to maximize your tmux session, since tmux reduces
+        the available size of your terminal to the smallest connected
+        session
 
  -- Dustin Kirkland <kirkland@ubuntu.com>  Sun, 21 Apr 2013 11:11:01 -0500
 

usr/bin/byobu

@@ -2,6 +2,7 @@
 #
 #    byobu - wrapper script
 #    Copyright (C) 2008-2009 Canonical Ltd.
+#    Copyright (C) 2008-2013 Dustin Kirkland
 #
 #    Authors: Dustin Kirkland <kirkland@byobu.co>
 #
@@ -59,6 +60,9 @@ esac
 # At this point, we're sure BYOBU_BACKEND is properly defined
 export BYOBU_BACKEND
 
+# Store the parent tty
+export BYOBU_TTY=$(tty)
+
 # Add a version argument for debugging purposes
 if [ "$#" = "1" ]; then
 	case "$1" in

usr/lib/byobu/include/Makefile.am

@@ -1,2 +1,2 @@
 inclibdirdir = $(prefix)/lib/@PACKAGE@/include
-inclibdir_SCRIPTS = common constants cycle-status dirs mondrian notify_osd shutil ec2instancespricing.py
+inclibdir_SCRIPTS = common constants cycle-status dirs mondrian notify_osd shutil ec2instancespricing.py tmux-detach-all-but-current-client

usr/lib/byobu/include/tmux-detach-all-but-current-client

@@ -0,0 +1,46 @@
+#!/bin/sh
+#
+#    tmux-detach-all-but-current-client
+#    Copyright (C) 2013 Dustin Kirkland
+#
+#    Authors: Dustin Kirkland <kirkland@byobu.co>
+#
+#    This program is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU General Public License as published by
+#    the Free Software Foundation, version 3 of the License.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU General Public License for more details.
+#
+#    You should have received a copy of the GNU General Public License
+#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+a1=
+a2=
+tty1=
+tty2=
+# List all clients, ordered by most recent activity descending
+for c in $(tmux list-clients -F "#{client_activity}___#{client_tty}" | sort -n -r); do
+	if [ -z "$a1" ]; then
+		a1=${c%%___*}
+		tty1=${c##*___}
+	elif [ -z "$a2" ]; then
+		a2=${c%%___*}
+		tty2=${c##*___}
+	fi
+	if [ -n "$a1" ] && [ -n "$a2" ]; then
+		if [ "$a1" = "$a2" ]; then
+			# Activity timestamps match in top 2 attached clients
+			# Let's not detach anyone here!
+			tmux display-message "Multiple active attached clients detected, refusing to detach" >/dev/null 2>&1
+		elif [ -n "$tty1" ]; then
+			# Detach all but the current client, iterating across each
+			# Tempting to use detach-client -a -t here, but there's a bug
+			# in there, keeping that from working properly
+			tmux detach-client -t "$tty2" >/dev/null 2>&1
+			a2=
+		fi
+	fi
+done

usr/share/byobu/keybindings/f-keys.tmux

@@ -57,6 +57,7 @@ bind-key -n S-F5 new-window -k "$BYOBU_PREFIX/lib/byobu/include/cycle-status" \;
 bind-key -n C-F5 send-keys ". $BYOBU_PREFIX/bin/byobu-reconnect-sockets" \; send-keys Enter
 bind-key -n C-S-F5 new-window -d "byobu-select-profile -r"
 bind-key -n F6 detach
+bind-key -n M-F6 run-shell '$BYOBU_PREFIX/lib/byobu/include/tmux-detach-all-but-current-client'
 bind-key -n S-F6 run-shell 'exec touch $BYOBU_RUN_DIR/no-logout' \; detach
 bind-key -n C-F6 kill-pane
 bind-key -n F7 copy-mode

usr/share/byobu/keybindings/f-keys.tmux.disable

@@ -58,6 +58,7 @@ unbind-key -n S-F5
 unbind-key -n C-F5
 unbind-key -n C-S-F5
 unbind-key -n F6
+unbind-key -n M-F6
 unbind-key -n S-F6
 unbind-key -n C-F6
 unbind-key -n F7

usr/share/doc/byobu/help.tmux.txt

@@ -22,6 +22,7 @@ and some convenient keybindings:
     Ctrl-Shift-F5                Change status bar's color randomly
   F6                             Detach session and then logout
     Shift-F6                     Detach session and do not logout
+    Alt-F6                       Detach all clients but yourself
     Ctrl-F6                      Kill split in focus
   F7                             Enter scrollback history
     Alt-PageUp/PageDown          Enter and move through scrollback