tmux, vimrc: yanks also go to the local terminal clipboard via OSC 52

tmux: set-clipboard on, so OSC 52 written by vim inside a pane is forwarded
to the client terminal (external dropped it). vimrc: TextYankPost writes @"
as OSC 52 next to the existing ssh push; base64 via the base64 command since
base64_encode()/str2blob() are newer than vim 9.1.83.

2 files changed, 5 insertions, 1 deletions

diff --git a/core/tmux.conf b/core/tmux.conf
index 0093aaa..b9a6cb1 100644
--- a/core/tmux.conf
+++ b/core/tmux.conf
@@ -57,7 +57,9 @@ bind-key -T copy-mode-vi MouseDragEnd1Pane send-keys -X copy-pipe-no-clear "$YAN
 # no buffer on CLIP_HOST yet (exit 3, e.g. after its reboot) = paste tmux's own buffer
 bind-key ] run-shell "f=\$(mktemp); $CLIP '[ -f /dev/shm/clip/buf ] || exit 3; cat /dev/shm/clip/buf' >\$f; r=\$?; [ \$r -eq 0 ] && tmux load-buffer \$f; rm -f \$f; [ \$r -eq 0 ] || [ \$r -eq 3 ] && tmux paste-buffer -p"
 # ===== end shared clipboard =====
-# TODO: try `set -g set-clipboard off` later (tmux default "external" sends copies to the local terminal clipboard via OSC 52); unrelated to the shared clipboard above
+# OSC 52: copy-mode yanks also go to the clipboard of the terminal you type in; "on" (not "external")
+# also forwards OSC 52 that vim writes inside a pane
+set -g set-clipboard on
 
 # Linux only: true-color regardless of what TERM the outer terminal/distro sets
 if-shell 'uname | grep -q Darwin' {} {
diff --git a/core/vimrc b/core/vimrc
index fee3ba3..26ebdb6 100644
--- a/core/vimrc
+++ b/core/vimrc
@@ -68,6 +68,8 @@ let g:clip = ['ssh', '-o', 'ControlMaster=auto', '-o', 'ControlPersist=yes', '-o
 augroup ssh_clipboard
 au!
 au TextYankPost * let g:clip_job = job_start(g:clip + ['umask 077; mkdir -p /dev/shm/clip && cat >/dev/shm/clip/new && mv /dev/shm/clip/new /dev/shm/clip/buf'], {'in_io': 'pipe', 'out_io': 'null', 'err_io': 'null'}) | call ch_sendraw(g:clip_job, @") | call ch_close_in(g:clip_job)
+" also OSC 52: @" to the clipboard of the terminal you type in (inside tmux needs set-clipboard on)
+au TextYankPost * call echoraw("\e]52;c;" . system("base64 | tr -d '\\n'", @") . "\x07")
 augroup END
 " pull (paste): every p P gp gP ]p [p (normal) and p P (visual) first fetches the buffer into @".
 " Waits up to 3 s for a pending push, then up to 3 s for the fetch (perl alarm kills ssh);