From b75877298b7605bb5a3bcdf40b4f58faaff2a20a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Fr=C3=A9d=C3=A9ric=20P=C3=A9ters?= <fpeters@entrouvert.com>
Date: Wed, 9 Jan 2019 17:56:24 +0100
Subject: [PATCH] eoptasks: do not start if already running in tmux

---
 eoptasks/eoptasks.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/eoptasks/eoptasks.py b/eoptasks/eoptasks.py
index cd56025..6124f97 100755
--- a/eoptasks/eoptasks.py
+++ b/eoptasks/eoptasks.py
@@ -268,6 +268,10 @@ if not args.cmd:
     sys.exit(1)
 
 def init_tmux_session():
+    if os.environ.get('TMUX'):  # already in a tmux
+        sys.stderr.write('Cannot run embedded in tmux\n')
+        sys.exit(1)
+
     tmux_session_name = 's%s' % random.randrange(1000)
     server_address = '/tmp/.eoptasks.%s' % tmux_session_name
     try: