.tmux.conf

set -g base-index 1
set -g default-terminal "screen-256color"

# Rather than constraining window size to the maximum size of any client
# connected to the *session*, constrain window size to the maximum size of any
# client connected to *that window*. Much more reasonable.
setw -g aggressive-resize on

# Allow mouse input if tmux is <2.1
# Prior to version 2.1, there were several mouse options to set
if-shell '[[ (($(tmux -V | cut -d\  -f2) < 2.1)) ]]' \
  "set -g mouse-select-pane on; set -g mode-mouse on; \
    set -g mouse-resize-pane on; set -g mouse-select-window on"

# Allow mouse input if tmux is >2.0
# In version 2.1 "mouse" replaced the previous 4 mouse options
if-shell '[[ (($(tmux -V | cut -d\  -f2) > 2.0)) ]]' \
  "set -g mouse on"

# UTF8 is autodetected in 2.2 onwards, but errors if explicitly set
if-shell '[[ (($(tmux -V | cut -d\  -f2) < 2.2)) ]]' \
  "set -g utf8 on; set -g status-utf8 on; set -g mouse-utf8 on"

# Clock settings
set-window-option -g clock-mode-colour "#a22020"
set-window-option -g clock-mode-style 12

# History scrollback size (default 2000)
set-option -g history-limit 10000

# Allow reloading tmux config with Ctrl+b -> Shift+r
bind R source-file ~/.tmux.conf \; display-message "Config reloaded..."

# Color of status bar
set -g status-bg colour33
set -g status-fg colour255
set -g pane-active-border-style fg=colour33,bg=default

# Allow setting titles
set -g set-titles on
set -g set-titles-string "#{W:#{E:window-status-format} ,#{E:window-status-current-format} } - #{USER}@#{host}"