From 6f70fa0f130db9d38a01433e5e8ee7b033832163 Mon Sep 17 00:00:00 2001
From: Tom Ryder <tom@sanctum.geek.nz>
Date: Tue, 9 Aug 2022 18:52:47 +1200
Subject: Don't update tmux environment at all

Not even DISPLAY or WINDOWID---it's too confusing.
---
 tmux/tmux.conf | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/tmux/tmux.conf b/tmux/tmux.conf
index e7f088bd..ca4e7172 100644
--- a/tmux/tmux.conf
+++ b/tmux/tmux.conf
@@ -1,3 +1,15 @@
+# Strip out a lot of machine and X11 dependent crap from the initial
+# environment
+set-environment -gru DISPLAY
+set-environment -gru SSH_CLIENT
+set-environment -gru SSH_CONNECTION
+set-environment -gru SSH_TTY
+set-environment -gru WINDOWID
+
+# Otherwise, use the environment we had when we started; don't touch it during
+# a session unless I specifically ask
+set-option -g update-environment 'COLORFGBG COLORTERM'
+
 # Setting this makes each new pane a non-login shell, which suits me better
 set-option -g default-command "exec $SHELL"
 
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