dot_tmux.conf

# https://rampart81.github.io/post/vim-clipboard-share/

set -g mouse on
set -g mode-keys vi
set -g base-index 1
set-option -g renumber-windows on
set-window-option -g xterm-keys on

# Easy config reload
bind-key R source-file ~/.tmux.conf \; display-message "tmux.conf reloaded."

# make prefix 'ctrl-a'
set-option -g prefix C-a
unbind-key C-a
bind-key C-a send-prefix

# Use ctrl-arrow keys without prefix key to switch panes
# bind h select-pane -L
# bind j select-pane -D
# bind k select-pane -U
# bind l select-pane -R

# scrollback buffer size increase
set -g history-limit 100000

# clipboard for tmux - vim - mac os
set -g default-command "reattach-to-user-namespace -l zsh"

# Use | and - to split panes within pane's current path
bind | split-window -h -c "#{pane_current_path}"
bind - split-window -v -c "#{pane_current_path}"

# vi copy mode
unbind -T copy-mode-vi Enter
bind-key -T copy-mode-vi 'v' send -X begin-selection
bind-key -T copy-mode-vi 'V' send -X select-line
bind-key -T copy-mode-vi 'r' send -X rectangle-toggle
bind -T copy-mode-vi 'y' send -X copy-pipe-and-cancel "reattach-to-user-namespace pbcopy"

# Smart pane switching with awareness of Vim splits.
# See: https://github.com/christoomey/vim-tmux-navigator
is_vim="ps -o state= -o comm= -t '#{pane_tty}' \
    | grep -iqE '^[^TXZ ]+ +(\\S+\\/)?g?(view|l?n?vim?x?)(diff)?$'"
bind-key -n 'C-h' if-shell "$is_vim" 'send-keys C-h'  'select-pane -L'
bind-key -n 'C-j' if-shell "$is_vim" 'send-keys C-j'  'select-pane -D'
bind-key -n 'C-k' if-shell "$is_vim" 'send-keys C-k'  'select-pane -U'
bind-key -n 'C-l' if-shell "$is_vim" 'send-keys C-l'  'select-pane -R'

tmux_version='$(tmux -V | sed -En "s/^tmux ([0-9]+(.[0-9]+)?).*/\1/p")'
if-shell -b '[ "$(echo "$tmux_version < 3.0" | bc)" = 1 ]' \
    "bind-key -n 'C-\\' if-shell \"$is_vim\" 'send-keys C-\\'  'select-pane -l'"
if-shell -b '[ "$(echo "$tmux_version >= 3.0" | bc)" = 1 ]' \
    "bind-key -n 'C-\\' if-shell \"$is_vim\" 'send-keys C-\\\\'  'select-pane -l'"
bind-key -T copy-mode-vi 'C-h' select-pane -L
bind-key -T copy-mode-vi 'C-j' select-pane -D
bind-key -T copy-mode-vi 'C-k' select-pane -U
bind-key -T copy-mode-vi 'C-l' select-pane -R
bind-key -T copy-mode-vi 'C-\' select-pane -l

# close window
bind-key X kill-pane