tmux.conf

# Load prefix_highlight
run-shell -b ~/.dotfiles/tmux_prefix_highlight

# Create and configure shells session
new-session -As shells

# Set C-o as command prefix
set -g prefix C-o

# Vi mode
set -g mode-keys vi

# Ensure color works
set -g default-terminal "screen-256color"

# Rename the window title to be the current 'application'
set -g automatic-rename on

# Colors
# To see a list of colours:
#   for i in {0..255} ; do     printf "\x1b[38;5;${i}mcolour${i}\n"; done | less
set-option -g status-style fg=colour136,bg=colour235
set-option -g window-status-bell-style bg=colour20,fg=white,blink
set-option -g pane-border-style fg=colour235
set-option -g pane-active-border-style fg=colour240
set-option -g message-style fg=colour166,bg=colour235
set-option -g display-panes-active-colour colour33
set-option -g display-panes-colour colour166

# Sensible split keys
unbind %
bind | split-window -h
bind - split-window -v

# Join another window into a pane in this window
bind-key j choose-window "join-pane -s "%%""

# Move the current pane into a new window
bind-key s break-pane

# Bind Alt-Left and Alt-Right to prev/next window
bind -n M-Left previous-window
bind -n M-Right next-window

# Bind Alt-Up and Alt-Down to prev/next pane
bind -n M-Up select-pane -U
bind -n M-Down select-pane -D

# Open new window with F5 or a new window in current path with F6
bind -n F5 new-window
bind -n F6 new-window -c "#{pane_current_path}"

# Move a window in the list with Prefix-Left and Prefix-Right
bind-key left swap-window -t -1 \; previous-window
bind-key right swap-window -t +1 \; next-window

# Fill the gaps with <Prefix>up
bind-key up move-window -r

# Rename current window with <Prefix>R
bind-key R command-prompt -p "Name for this window: " "rename-window '%%'"

# Use <Prefix>r to quickly reload tmux settings
bind r \
  source-file ~/.tmux.conf \; \
  display 'Reloaded tmux config'


# Host-specific colors
%if "#{==:#{host_short},grunthos}"
set-environment HOSTCOLOR colour24
%else
set-environment HOSTCOLOR colour196
%endif

# Statusbar
set status on
set-option -g status on
set-option -g status-interval 2
set-option -g status-justify "left"
set-option -g status-left ""
set-option -g status-right "#{prefix_highlight} #[fg=colour1]%H:%M #[fg=colour2]%m/%d #[fg=colour3]#h"
set-option -g status-right-length 50
set-window-option -g window-status-format "#[fg=#{HOSTCOLOR}] #I  #W "
set-window-option -g window-status-current-format "#[bg=white]#[fg=#{HOSTCOLOR}] #I #[bg=#{HOSTCOLOR}]#[fg=white] #W "