tmux: Fixed copying over ssh/mosh

.config/tmux/yank.sh

@@ -0,0 +1,25 @@
+#!/bin/sh
+# tmux clipboard helper - works locally and over SSH/mosh
+
+set -eu
+
+# Read from stdin
+buf=$(cat)
+
+# Try methods in order of preference
+copy_backend_remote_tunnel_port=$(tmux show-option -gvq "@copy_backend_remote_tunnel_port" 2>/dev/null || echo "")
+
+# Method 1: Use pbcopy if available (local macOS)
+if command -v pbcopy >/dev/null 2>&1; then
+  printf "%s" "$buf" | pbcopy
+# Method 2: OSC 52 (for mosh/ssh)
+elif [ -n "${TMUX:-}" ]; then
+  # Get the tmux tty
+  tmux_tty=$(tmux display-message -p '#{client_tty}')
+  
+  # Encode in base64
+  encoded=$(printf "%s" "$buf" | base64 | tr -d '\n')
+  
+  # Send OSC 52 sequence
+  printf "\033]52;c;%s\a" "$encoded" > "$tmux_tty"
+fi