tmux.conf

# start non-login shell (there's no zprofile)
set -g default-command $SHELL

# start numbering at 1
set-option -g base-index 1

# create a default session on server start
new-session

set -g prefix C-s
unbind C-b
bind C-s send-prefix

# update env
set -g update-environment -r

# Add dim color support
set -sa terminal-overrides ",*:dim=\\E[2m"

# Clear buffer
bind C-l send-keys C-l \; clear-history

# support for 256 colors
set-option -g default-terminal "xterm-256color"

# make pbcopy & pbpaste to work in OS X
if-shell 'test "$(uname)" = "Darwin"' \
    'set-option -g default-command "tmux rename-window shell; reattach-to-user-namespace -l $SHELL"'

# bind vi key-mapping
set-option -g status-keys vi

# vi-style controls for copy mode
set-window-option -g mode-keys vi

# large history
set-option -g history-limit 100000

# highlight status bar on activity
set-window-option -g monitor-activity off
set-option -g visual-activity on
set-option -g visual-bell off

# automatically set window title
set-window-option -g automatic-rename on
set-option -g set-titles on
set-option -g set-titles-string "#T"

# force a reload of the config file
bind r source-file ~/.tmux.conf

# default statusbar colors
set-option -g status-style fg=colour244,bg=colour234

# default window title colors
set-window-option -g window-status-style fg=colour244,bg=default,dim

# active window title colors
set-window-option -g window-status-current-style fg=colour254,bg=default,none

# activity window colors
set-window-option -g window-status-activity-style bg=default

# pane border
set-option -g pane-border-style fg=colour235
set-option -g pane-active-border-style fg=colour240

# message text
set-option -g message-style fg=colour7,bg=colour235

# pane number display
set-option -g display-panes-active-colour colour4
set-option -g display-panes-colour colour7

# clock
set-window-option -g clock-mode-colour colour214

# splitting windows into panes with h and v
bind-key h split-window -v -c "#{pane_current_path}"
bind-key v split-window -h -c "#{pane_current_path}"

# create new window with the current directory
bind-key c new-window -c "#{pane_current_path}"

# set up resize-pane keys
bind-key -r > resize-pane -R 3
bind-key -r < resize-pane -L 3
bind-key -r - resize-pane -D 1
bind-key -r = resize-pane -U 1

# shift + arrows to switch windows (w/o prefix key)
bind -n S-Left  previous-window
bind -n S-Right next-window

# set up swap-pane keys
bind-key [ swap-pane -U
bind-key ] swap-pane -D

# mouse mode
set -g mouse on

# report focus events
set -g focus-events on

# remove time and hostname in status bar
set-option -g status-left '#S '
set-option -g status-right ''

# set up copy and paste keys
unbind [
bind Escape copy-mode
unbind p
bind p paste-buffer
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-key -T copy-mode-vi 'y' send -X copy-selection

# choose buffer to paste interactively
# bind-key o choose-buffer
# delete the most recently copied buffer of text
# bind-key x delete-buffer

# toggle statusbar
bind-key b set status

# disable delay between characters in commands
set-option -s escape-time 0

# load "SSH" overrides
if-shell '[ -n "$SSH_TTY" ]' 'source $DOTFILES_PATH/tmux-ssh.conf'

# load local overrides
if-shell "test -f ~/.tmux.local.conf" "source-file ~/.tmux.local.conf"

set-option -g @resurrect-save 'S'
set-option -g @resurrect-restore 'R'

# 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?|fzf)(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
# }}}

run-shell "$DOTFILES_PATH/tmux/plugins/resurrect/resurrect.tmux"
run-shell "$DOTFILES_PATH/tmux/plugins/open/open.tmux"
run-shell "$DOTFILES_PATH/tmux/plugins/copycat/copycat.tmux"
run-shell "$DOTFILES_PATH/tmux/plugins/yank/yank.tmux"