.tmux.conf

# ##############################################################
# Global settings.

# Switch the prefix to Ctrl-a (Ctrl-b interferes with Vim paging).
set -g prefix C-a
unbind C-b

# Change the default input delay in order to improve Vim performance.
set -sg escape-time 1

# vi mode.
set -g mode-keys vi
set -g status-keys vi

# 256-color mode.
set -g default-terminal "screen-256color"

# Increase scrollback buffer size
set -g history-limit 50000

# Affects size of window when multiple people are attached.
set-window-option -g aggressive-resize on

# Disable mouse interactions
set -g mouse off


# ##############################################################
# Key bindings.
#

# Allow hitting Ctrl-a twice to issue it to other applications.
bind C-a send-prefix

# Reload .tmux.conf with "r".
bind r source-file ~/.tmux.conf \; display "Reloaded!"

# Create a new window
bind N new-window -c "#{pane_current_path}"

# Split windows with a more visual set of characters.
bind | split-window -h
bind - split-window -v
unbind '"'
unbind %

# Open new pane in same directory as current pane.
bind _ split-window -v -c "#{pane_current_path}"
# tmux 3.0 breaks on this. Escaping with \\ or '\' does not seem to work.
# bind \ split-window -h -c "#{pane_current_path}"

# Select panes with vi-style movement commands.
bind h select-pane -L
bind j select-pane -D
bind k select-pane -U
bind l select-pane -R

# Resize panes with vi-style movement commands.
bind -r H resize-pane -L 5
bind -r J resize-pane -D 5
bind -r K resize-pane -U 5
bind -r L resize-pane -R 5

# Copy and paste with vi-style commands.
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 'y' send -X copy-pipe-and-cancel pbcopy

# Clear pane history
bind-key b send-keys -R \; clear-history

# Use vim keybindings in copy mode
set-window-option -g mode-keys vi

# Toggle synchonize panes, which puts typed commands into all panes.
# bind C-s set-window-option synchronize-panes


# ##############################################################
# Color Scheme
#   Derived initially from:
#   https://www.hamvocke.com/blog/a-guide-to-customizing-your-tmux-conf/

# Loud or Quiet?
set-option -g visual-activity off
set-option -g visual-bell off
set-option -g visual-silence off
set-window-option -g monitor-activity off
set-option -g bell-action none


# Modes
set-window-option -g clock-mode-colour colour135
set-window-option -g mode-style "bold,fg=colour196,bg=colour238"

# Panes
set -g pane-border-style "bg=colour235,fg=colour238"
set -g pane-active-border-style "bg=colour236,fg=colour51"

# Status Bar
set -g status-justify left
set -g status-interval 2
set -g status-position bottom
set -g status-bg colour234
set -g status-fg colour137
set -g status-style dim
set -g status-left ''
set -g status-right '#[fg=colour233,bg=colour241,bold] %d/%m #[fg=colour233,bg=colour245,bold] %H:%M:%S '
set -g status-right-length 50
set -g status-left-length 20


# Window Status
set-window-option -g window-status-current-format ' #I#[fg=colour250]:#[fg=colour255]#W#[fg=colour50]#F '
set-window-option -g window-status-format ' #I#[fg=colour237]:#[fg=colour250]#W#[fg=colour244]#F '
set-window-option -g window-status-current-style "bold,fg=colour81,bg=colour238"
set-window-option -g window-status-style "none,fg=colour138,bg=colour235"
set-window-option -g window-status-bell-style "bold,fg=colour255,bg=colour1"

# The Messages
set -g message-style "bold,bg=colour166,fg=colour232"
set -g message-command-style "fg=blue,bg=black"