tmux.conf

# make tmux display things in 256 colors
set -g default-terminal "screen-256color"

# set scrollback history to 10000 (10k)
set -g history-limit 10000

# set Ctrl-a as the default prefix key combination
# and unbind C-b to free it up
set -g prefix `
unbind C-b

# use send-prefix to pass C-a through to application
bind ` send-prefix

bind '"' split-window -c "#{pane_current_path}"
bind % split-window -h -c "#{pane_current_path}"
bind c new-window -c "#{pane_current_path}"

# shorten command delay
set -sg escape-time 1

# set window and pane index to 1 (0 by default)
set-option -g base-index 1
setw -g pane-base-index 1

# reload ~/.tmux.conf using PREFIX r
bind r source-file ~/.tmux.conf \; display "Reloaded!"

# use PREFIX | to split window horizontally and PREFIX - to split vertically
bind | split-window -h -c "#{pane_current_path}"
bind - split-window -v -c "#{pane_current_path}"

# Make the current window the first window
bind T swap-window -t 1

# map Vi movement keys as pane movement keys
bind h select-pane -L
bind j select-pane -D
bind k select-pane -U
bind l select-pane -R

# and use C-h and C-l to cycle thru panes
bind -r C-h select-window -t :-
bind -r C-l select-window -t :+

# resize panes using PREFIX H, J, K, L
bind H resize-pane -L 5
bind J resize-pane -D 5
bind K resize-pane -U 5
bind L resize-pane -R 5

# C-i for even-vertical arrangement and C-o to zoom current pane
bind-key C-i select-layout even-vertical
bind-key C-v select-layout even-horizontal
bind-key C-o resize-pane -y 1000

# Sync panes
bind C-s set-window-option synchronize-panes

# explicitly enable mouse control
setw -g mouse on

# Double LMB Select & Copy (Word)
bind-key -T copy-mode-vi DoubleClick1Pane \
    select-pane \; \
    send-keys -X select-word \; \
    send-keys -X copy-pipe "reattach-to-user-namespace pbcopy"
bind-key -n DoubleClick1Pane \
    select-pane \; \
    copy-mode -M \; \
    send-keys -X select-word \; \
    send-keys -X copy-pipe "reattach-to-user-namespace pbcopy"

# Triple LMB Select & Copy (Line)
bind-key -T copy-mode-vi TripleClick1Pane \
    select-pane \; \
    send-keys -X select-line \; \
    send-keys -X copy-pipe "reattach-to-user-namespace pbcopy"
bind-key -n TripleClick1Pane \
    select-pane \; \
    copy-mode -M \; \
    send-keys -X select-line \; \
    send-keys -X copy-pipe "reattach-to-user-namespace pbcopy"

# ---------------------
# Copy & Paste
# ---------------------
# provide access to the clipboard for pbpaste, pbcopy
if-shell 'command -v reattach-to-user-namespace >/dev/null' 'set-option -g default-command "reattach-to-user-namespace -l bash"'
set-window-option -g automatic-rename on

# use vim keybindings in copy mode
setw -g mode-keys vi

# setup 'v' to begin selection as in Vim
bind-key -T copy-mode-vi 'v' send -X begin-selection
bind-key -T copy-mode-vi 'y' send -X copy-pipe-and-cancel "reattach-to-user-namespace pbcopy"

# update default binding of 'Enter' to also use copy-pipe
unbind -T copy-mode-vi Enter
bind-key -T copy-mode-vi Enter send -X copy-pipe-and-cancel "reattach-to-user-namespace pbcopy"
bind-key -T copy-mode-vi MouseDragEnd1Pane send -X copy-pipe-and-cancel "reattach-to-user-namespace pbcopy"

bind y run 'tmux save-buffer - | reattach-to-user-namespace pbcopy '
bind C-y run 'tmux save-buffer - | reattach-to-user-namespace pbcopy '

# Save entire tmux history to a file - file will be on machine where tmux is
# running
bind-key * command-prompt -p 'save history to filename:' -I '~/tmux.history' 'capture-pane -S -32768 ; save-buffer %1 ; delete-buffer'

# ----------------------
# set some pretty colors
# ----------------------
# set pane colors - hilight the active pane
# set-option -g pane-border-fg colour235 #base02
# set-option -g pane-active-border-fg colour240 #base01
set-option -g pane-border-style fg=color235
set-option -g pane-active-border-style fg=color240

# colorize messages in the command line
# set-option -g message-bg black #base02
# set-option -g message-fg brightred #orange
set-option -g message-style fg=brightred,bg=black

# ----------------------
# Status Bar
# -----------------------
set-option -g status on                # turn the status bar on
set -g status-interval 5               # set update frequencey (default 15 seconds)
set -g status-justify centre           # center window list for clarity
# set-option -g status-position top    # position the status bar at top of screen

# visual notification of activity in other windows
setw -g monitor-activity on
set -g visual-activity on

# set color for status bar
# set-option -g status-bg colour235 #base02
# set-option -g status-fg yellow #yellow
# set-option -g status-attr dim
set-option -g status-style bg=colour235,fg=yellow,dim

# set window list colors - red for active and cyan for inactive
# set-window-option -g window-status-fg brightblue #base0
# set-window-option -g window-status-bg colour236
# set-window-option -g window-status-attr dim
set-window-option -g window-status-style bg=colour236,fg=brightblue,dim

# set-window-option -g window-status-current-fg brightred #orange
# set-window-option -g window-status-current-bg colour236
# set-window-option -g window-status-current-attr bright
set-window-option -g window-status-current-style bg=colour236,fg=brightred,bright

# show host name and IP address on left side of status bar
set -g status-left-length 85
set -g status-left "#[fg=green]: #h : #[fg=brightblue]#(dig +short myip.opendns.com @resolver1.opendns.com) #[fg=yellow]#(ifconfig en0 | grep 'inet ' | awk '{print \"en0 \" $2}') #(ifconfig en1 | grep 'inet ' | awk '{print \"en1 \" $2}') #(ifconfig en3 | grep 'inet ' | awk '{print \"en3 \" $2}') #[fg=red]#(ifconfig tun0 | grep 'inet ' | awk '{print \"vpn \" $2}') "

# show session name, window & pane number, date and time on right side of
# status bar
set -g status-right-length 60
set -g status-right "#[fg=blue]#S #I:#P #[fg=yellow]: %d %b %Y #[fg=green]: %l:%M %p : #(date -u | awk '{print $4}') :"

# Show SYNC when synchronize-panes is on
set-option -gw window-status-current-format " #{?pane_synchronized,#[bg=red]SYNC#[default],} #I:#T#F "