.tmux.conf

# Settings ========================================================================================

# fix for vim background colors
set -g default-terminal 'screen-256color'
set -ga terminal-overrides ',screen-256color:Tc'
set-option -ga terminal-overrides ",xterm-256color:Tc"

# decrease delay to increase vim responsiveness
set -sg escape-time 1

# increase repeat time for repeatable commands
set -g repeat-time 1000

# refresh status line every 5 seconds
set -g status-interval 5

# start window and pane indices at 1.
set -g base-index 1
set -g pane-base-index 1

set -g default-terminal screen-256color
set -g history-limit 10000

set -g status-keys vi
setw -g mode-keys vi
setw -g monitor-activity on

# prevent unwanted exit with Ctrl-d
set-environment -g 'IGNOREEOF' 2

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

set-window-option -g clock-mode-style 24

# refresh status line every 5 seconds
set -g status-interval 5

# length of tmux status line
set -g status-left-length 30
set -g status-right-length 150


# Theme ===========================================================================================

# make active pane border blue
set -g pane-border-fg colour7
set -g pane-active-border-fg colour7

# set the background color
set -g status-bg colour7
set -g status-fg colour0
set -g window-status-current-bg colour250
set -g window-status-current-fg colour0

# remove space between window titles
set -g window-status-separator ''

# set the left and right status
set -g status-left '#{?client_prefix,#[bg=colour2],#[bg=colour7]}#[fg=colour0] #S #[bg=colour7]#{?client_prefix,#[fg=colour2],#[fg=colour0]}'
set -g status-right '#[bg=colour7]#[fg=colour0]#{?window_zoomed_flag, #[bg=colour250]#[fg=colour0] ❐ #[bg=colour7]#[fg=colour0],} %b %d %H:%M '

# customize how windows are displayed in the status line
set -g window-status-current-format " #I:#W "
set -g window-status-format " #I:#W "


# Bindings ========================================================================================

# set the prefix to `ctrl+a` instead of `ctrl+b`
unbind C-b
set-option -g prefix C-a
bind-key C-a send-prefix

# use | and - to split a window vertically and horizontally instead of " and % respoectively
bind | split-window -h -c "#{pane_current_path}"
bind - split-window -v -c "#{pane_current_path}"
unbind '"'
unbind %

# use r to quickly reload tmux settings
unbind r
bind r source-file ~/.tmux.conf \; display 'Reloaded tmux config'

# toggle synchronized input to all panes in current window
bind-key S set-window-option synchronize-panes

# move around panes with hjkl, as one would in vim after pressing ctrl + w
bind h select-pane -L
bind j select-pane -D
bind k select-pane -U
bind l select-pane -R

# resize panes with HJKL
bind-key J resize-pane -D 5
bind-key K resize-pane -U 5
bind-key H resize-pane -L 5
bind-key L resize-pane -R 5

# use Alt-vim keys without prefix key to switch panes
bind -n M-h select-pane -L
bind -n M-j select-pane -D
bind -n M-k select-pane -U
bind -n M-l select-pane -R

# use Alt-arrow keys without prefix key to switch panes
bind -n M-Left select-pane -L
bind -n M-Right select-pane -R
bind -n M-Up select-pane -U
bind -n M-Down select-pane -D

# shift arrow to switch windows
bind -n S-Left  previous-window
bind -n S-Right next-window