.tmux.conf

# Variable that is true if tmux runs on macOS
tmux_macos='[ uname | grep -q Darwin ]'

# Watch for activity in background windows
setw -g monitor-activity on
set -g visual-activity on

# Set terminal
set -g default-terminal "xterm-256color"

# Misc
set -g history-limit 500000

# set first window to index 1 (not 0) to map more to the keyboard layout
set -g base-index 1
setw -g pane-base-index 1

# remap prefix to Control + a
set -g prefix C-a
unbind C-b
# bind 'C-a C-a' to type 'C-a'
bind C-a send-prefix

# Reload config
unbind r
bind r source-file ~/.tmux.conf \; display 'Reloaded!'

# Xterm
setw -g xterm-keys on

# Lower escape timing from 500ms to 50ms for quicker response to scroll-buffer access
set -s escape-time 50

# Better splitting
unbind %
unbind '"'
bind '\' split-window -h # Fix '
bind '-' split-window -v

# Key Mappings
bind-key -n M-n new-window -c "#{pane_current_path}"
bind-key -n M-1 select-window -t :1
bind-key -n M-2 select-window -t :2
bind-key -n M-3 select-window -t :3
bind-key -n M-4 select-window -t :4
bind-key -n M-5 select-window -t :5
bind-key -n M-6 select-window -t :6
bind-key -n M-7 select-window -t :7
bind-key -n M-8 select-window -t :8
bind-key -n M-9 select-window -t :9
bind-key -n M-0 select-window -t :0
bind-key -n M-. select-window -n
bind-key -n M-, select-window -p
bind-key -n M-< swap-window -t -1
bind-key -n M-> swap-window -t +1
bind-key -n M-X confirm-before "kill-window"

# Theme
# center align window list
set -g status-justify centre
# default statusbar colors
set -g status-style fg=white,bg=default
# default window title colors
setw -g window-status-style fg=cyan,bg=default,dim
# active window title colors
setw -g window-status-current-style fg=white,bg=red,bright

# MacOS (brew install reattach-to-user-namespace vim tmux)
if-shell "$tmux_macos" "set -g default-shell $SHELL; set -g default-command \"reattach-to-user-namespace -l ${SHELL}\""

# Enable mouse support
set-option -g mouse on