From f557b85709b56b7798276700850afe9ae2b838a5 Mon Sep 17 00:00:00 2001
From: Iain Patterson <me@iain.cx>
Date: Sun, 29 Sep 2013 16:18:56 +0100
Subject: [PATCH] tmux 1.8 changed how run-shell works.

Prior to tmux 1.8 all run-shell commands ran in the foreground and we
had to detach explicitly.  From 1.8 onwards we can use the -b flag to
run a command in the background.

Ensure we run ktmux_helper in the appropriate way for the available tmux
version.
---
 .profile.d/tmux.bashrc | 22 ++++++++++++++++++++--
 1 file changed, 20 insertions(+), 2 deletions(-)

diff --git a/.profile.d/tmux.bashrc b/.profile.d/tmux.bashrc
index abbbff7..2bf7f05 100644
--- a/.profile.d/tmux.bashrc
+++ b/.profile.d/tmux.bashrc
@@ -5,7 +5,25 @@ tmux=$(find_working tmux 2>/dev/null)
 if [ $? = 0 ]; then
   alias session="bigtmux $tmux has -t session 2>/dev/null && tmux attach -t session || ktmux -R $krenew -T $tmux -s session"
   if [ -n "$TMUX" ]; then
-    $tmux run-shell "ktmux_helper -R $krenew" ';' detach 2>/dev/null
+    ktmux_args=${TMUX##*,}
+    if [ "$ktmux_args" = "$TMUX" ]; then
+      ktmux_args=
+    else
+      ktmux_args="-s $ktmux_args"
+    fi
+
+    # tmux 1.8 added -b flag to run-shell.  Prior to 1.8 we must detach.
+    tmux_version=$($tmux -V)
+    tmux_version=${tmux_version#tmux }
+    tmux_major=${tmux_version%%.*}
+    tmux_minor=${tmux_version#*.}
+    tmux_minor=${tmux_minor%%.*}
+    tmux_version=$((tmux_minor+tmux_major*10))
+    if [ $tmux_version -lt 18 ]; then
+      $tmux run-shell "ktmux_helper $ktmux_args -R $krenew" ';' detach 2>/dev/null
+    else
+      $tmux run-shell -b "ktmux_helper $ktmux_args -R $krenew" 2>/dev/null
+    fi
   fi
 fi
-unset krenew tmux
+unset krenew tmux tmux_version tmux_major tmux_minor ktmux_args
-- 
2.7.4