tmux.conf

# Enable titles and configure them
set-option -g set-titles on
set-option -g set-titles-string "#T"
# TODO: This probably can be done without hooks
set-hook -g after-new-window 'if "[ #{session_windows} -gt 1 ]" "set-option -g set-titles-string \"[#I] #T\" "'
set-hook -g pane-exited 'if "[ #{session_windows} -lt 2 ]" "set-option -g set-titles-string \"#T\" "'

# Allow xterm scrollback
set-option -ag terminal-overrides "xterm*:smcup@:rmcup@"

# Set the status options
# TODO: There are more than these two modes, but at least this makes it easy to see when the prefix has been pressed
set-option -g status-left "#{?client_prefix,#[bg=red] CNTROL ,#[bg=colour242,fg=colour250] INSERT }#[bg=colour237,fg=colour250] #h #[fg=default,bg=default]⡇"
set-option -g status-left-length 100
set-option -g status-right "#{?window_zoomed_flag,#[bg=colour242] ZOOMED ,}"
set-option -g status-bg colour250
set-option -g status-interval 60
set-option -g message-style bg=colour242,fg=black

# Set the window styles in the status
set-window-option -g window-status-format " #W "
set-window-option -g window-status-current-format " #W "
set-window-option -g window-status-current-style bg=colour32,fg=white,bold
set-window-option -g window-status-separator "⡇"

# Make sure we aren't monitoring activity
set-window-option -g monitor-activity off

# Switch to manual renaming so our shell configures it
set-option -g automatic-rename off
set-option -g allow-rename on

# Set the default terminal string to 256-color screen including background erase
set-option -g default-terminal "screen-256color-bce"

# Agressive resize
set-window-option -g aggressive-resize on

# Increase the scrollback buffer size
set-option -g history-limit 10000

# Set custom options
set-option -g @launch "#(date +%s)"

# Key bindings
# M = option with Terminal.app set to 'Use option as meta key', this prevents stomping most application's shortcuts
bind-key -n -r M-p      previous-window
bind-key -n -r M-n      next-window
bind-key -n -r M-s      new-window
bind-key -n -r M-o      "select-pane -t :.+"
# Blit the entire pane output to /tmp, useful for really cheaply showing output to someone or logging
bind-key C-p pipe-pane -o 'cat >> /tmp/pane.$USER.#W.#I'

# Complete disable escape-as-meta, because it's just annoying
set-option -g escape-time 0

# Renumber windows when they exit so they behave like normal "tabs"
set-option -g renumber-windows on

# Configure menu to make finding options a little easier sometimes
bind-key -n M-q display-menu -x W -y S \
    "New Window"                         s new-window \
    "New Popup"                          P "popup -E" \
    "Kill Window"                        k "killw"  \
    "Kill Other Session(s)"              X "kill-session -a" \
    "" \
    "Choose Window"                      w choose-window \
    "Previous Window"                    p previous-window \
    "Next Window"                        n next-window \
    "Swap Window Right"                  ↑ "swap-window -t -1" \
    "Swap Window Left"                   ↓ "swap-window -t +1" \
    "Horizontal Split"                   h "split-window -h" \
    "Vertical Split"                     v "split-window -v"  \
    "" \
    "Layout Horizontal"                  h "select-layout even-horizontal"  \
    "Layout Vertical"                    k "select-layout even-horizontal"  \
    "" \
    "Swap Pane Up"                       < "swap-pane -U" \
    "Swap Pane Down"                     > "swap-pane -D" \
    "Break Pane"                         t break-pane \
    "Join Pane"                          j "choose-window 'join-pane -h -s \"%%\"'" \
    "#{?window_zoomed_flag,Unzoom,Zoom}" z "resize-pane -Z"