[tmux] Allow cross-ssh copying

clone_and_link.sh

@@ -25,3 +25,5 @@ else
     rm -rf $HOME/.config/nvim
     ln -Tsfv $PWD/nvim $HOME/.config/nvim
 fi
+
+sudo ln -Tsfv $PWD/ssh_tty /etc/sudoers.d/ssh_tty

scripts/yank

@@ -0,0 +1,64 @@
+#!/bin/sh
+#
+# Usage: yank [FILE...]
+#
+# Copies the contents of the given files (or stdin if no files are given) to
+# the terminal that runs this program.  If this program is run inside tmux(1),
+# then it also copies the given contents into tmux's current clipboard buffer.
+# If this program is run inside X11, then it also copies to the X11 clipboard.
+#
+# This is achieved by writing an OSC 52 escape sequence to the said terminal.
+# The maximum length of an OSC 52 escape sequence is 100_000 bytes, of which
+# 7 bytes are occupied by a "\033]52;c;" header, 1 byte by a "\a" footer, and
+# 99_992 bytes by the base64-encoded result of 74_994 bytes of copyable text.
+#
+# In other words, this program can only copy up to 74_994 bytes of its input.
+# However, in such cases, this program tries to bypass the input length limit
+# by copying directly to the X11 clipboard if a $DISPLAY server is available;
+# otherwise, it emits a warning (on stderr) about the number of bytes dropped.
+#
+# See http://en.wikipedia.org/wiki/Base64 for the 4*ceil(n/3) length formula.
+# See http://sourceforge.net/p/tmux/mailman/message/32221257 for copy limits.
+# See http://sourceforge.net/p/tmux/tmux-code/ci/a0295b4c2f6 for DCS in tmux.
+#
+# Written in 2014 by Suraj N. Kurapati and documented at http://goo.gl/NwYqfW
+
+buf=$( cat "$@" )
+
+
+# Create the OSC52 escape string.
+len=$( printf %s "$buf" | wc -c ) max=74994
+test $len -gt $max && echo "$0: input is $(( len - max )) bytes too long" >&2
+esc="\033]52;c;$( printf %s "$buf" | head -c $max | base64 | tr -d '\r\n' )\a"
+test -n "$TMUX" && esc="\033Ptmux;\033$esc\033\\"
+
+# Output the string to waiting terminals
+printf "$esc"
+
+# Attempt to push to the raw SSH_TTY if that exists.
+test -n "$SSH_TTY" && printf "$esc" > $SSH_TTY
+
+if [ -n "$TMUX" ]; then
+  #push the OSC52 esc string to the clients directly.
+#  tmux_clients=$(tmux list-clients -F "#{client_tty}")
+#  readarray -t tmux_clients <<<"$tmux_clients"
+#  for c in ${tmux_clients[@]}; do
+#    printf "$esc" > $c
+#  done
+#
+  # And add it directly to the TMUX copy buffer.
+  test -n "$TMUX" && tmux set-buffer "$buf"
+fi
+
+# copy to X11 if possible...
+test -n "$DISPLAY" && command -v xsel > /dev/null && command -v xclip > /dev/null \
+    && printf %s "$buf" | { xsel -ib || xclip -sel c ;} && exit
+
+# copy to pbcopy on MacOS
+command -v pbcopy > /dev/null && printf %s "$buf" | pbcopy
+
+# Copy to remote pbcopy daemon, if attached
+if $(nc -z localhost 5556); then
+  printf %s "$buf" | nc localhost 5556
+
+fi

ssh_tty

@@ -0,0 +1 @@
+Defaults env_keep += "SSH_TTY SSH_CONNECTION SSH_CLIENT"

tmux/.tmux.conf

@@ -1,4 +1,4 @@
-set-environment -g PATH "/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/snap/bin"
+set-environment -g PATH "$HOME/dotfiles/scripts:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/snap/bin"
 set -g default-terminal "xterm-256color"
 
 set -g history-limit 20000
@@ -59,6 +59,11 @@ set-window-option -g mode-keys vi
 set-option -s set-clipboard on
 set -g @yank_with_mouse off
 set -g @yank_action 'copy-pipe'
+bind-key -Tcopy-mode-vi 'C-right' send -X next-word
+bind-key -Tcopy-mode-vi 'C-left' send -X previous-word
+unbind-key -T copy-mode-vi MouseDragEnd1Pane
+# Allow copy across SSH
+set -g @override_copy_command 'yank > #{pane_tty}'
 
 if '[ `uname` == Darwin ]' \
     'source-file ~/.tmux/.mac_config'

zsh/.zshrc

@@ -1,4 +1,4 @@
-export PATH="$HOME/.local/bin:$PATH"
+export PATH="$HOME/.local/bin:$HOME/dotfiles/scripts:$PATH"
 [[ -z $SSH_AUTH_SOCK ]] || export FORWARD_SOCK=$SSH_AUTH_SOCK
 
 [[ -f ~/.zsh/.powerline_config ]] && source ~/.zsh/.powerline_config