From 5d75d9aef2b69036328501820df770b29d57a308 Mon Sep 17 00:00:00 2001
From: Gregory Anders <8965202+gpanders@users.noreply.github.com>
Date: Thu, 16 Nov 2023 13:56:05 -0600
Subject: fix(osc52): enable OSC 52 by default in tmux sessions (#26072)

tmux has a set-clipboard option which, when set to 'on', allows
applications to set the system clipboard using the usual OSC 52 escape
sequence.
---
 runtime/plugin/osc52.lua | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

(limited to 'runtime/plugin/osc52.lua')

diff --git a/runtime/plugin/osc52.lua b/runtime/plugin/osc52.lua
index 78b21863ad..374b70066f 100644
--- a/runtime/plugin/osc52.lua
+++ b/runtime/plugin/osc52.lua
@@ -2,19 +2,18 @@ local tty = vim.iter(vim.api.nvim_list_uis()):any(function(ui)
   return ui.chan == 1 and ui.stdout_tty
 end)
 
-if
-  not tty
-  or vim.g.clipboard ~= nil
-  or vim.o.clipboard ~= ''
-  or not os.getenv('SSH_TTY')
-  or os.getenv('TMUX')
-then
+if not tty or vim.g.clipboard ~= nil or vim.o.clipboard ~= '' or not os.getenv('SSH_TTY') then
   return
 end
 
 require('vim.termcap').query('Ms', function(cap, seq)
   assert(cap == 'Ms')
 
+  -- Check 'clipboard' and g:clipboard again to avoid a race condition
+  if vim.o.clipboard ~= '' or vim.g.clipboard ~= nil then
+    return
+  end
+
   -- If the terminal reports a sequence other than OSC 52 for the Ms capability
   -- then ignore it. We only support OSC 52 (for now)
   if not seq:match('^\027%]52') then
-- 
cgit