.tmux.conf

# Version-specific commands [grumble, grumble]
# See: https://github.com/tmux/tmux/blob/master/CHANGES
run-shell "tmux setenv -g TMUX_VERSION $(tmux -V | cut -c 6-)"

if-shell -b '[ "$(echo "$TMUX_VERSION < 2.1" | bc)" = 1 ]' \
  "set -g mouse-select-pane on; set -g mode-mouse on; \
   set -g mouse-resize-pane on; set -g mouse-select-window on"

# In version 2.1 "mouse" replaced the previous 4 mouse options
if-shell -b '[ "$(echo "$TMUX_VERSION >= 2.1" | bc)" = 1 ]' \
  "set -g mouse on"

# UTF8 is autodetected in 2.2 onwards, but errors if explicitly set
if-shell -b '[ "$(echo "$TMUX_VERSION < 2.2" | bc)" = 1 ]' \
  "set -g utf8 on; set -g status-utf8 on; set -g mouse-utf8 on"

# bind-key syntax changed in 2.4
if-shell -b '[ "$(echo "$TMUX_VERSION < 2.4" | bc)" = 1 ]' \
  "bind-key -t vi-copy v   begin-selection; \
   bind-key -t vi-copy V   select-line; \
   bind-key -t vi-copy C-v rectangle-toggle; \
   bind-key -t vi-copy y   copy-pipe 'xclip -selection clipboard -in'"

# Newer versions
if-shell -b '[ "$(echo "$TMUX_VERSION >= 2.4" | bc)" = 1 ]' \
  "bind-key -T copy-mode-vi v   send -X begin-selection; \
   bind-key -T copy-mode-vi V   send -X select-line; \
   bind-key -T copy-mode-vi C-v send -X rectangle-toggle; \
   bind-key -T copy-mode-vi y   send -X copy-pipe-and-cancel 'xclip -selection clipboard -in'"

# Scroll History
set -g history-limit 30000

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

# improve colors
set -g default-terminal 'screen-256color'

# act like vim
#setw -g mode-keys vi
#bind h select-pane -L
#bind j select-pane -D
#bind k select-pane -U
#bind l select-pane -R
#bind-key -r C-h select-window -t :-
#bind-key -r C-l select-window -t :+

# Use Vim movement key mappings (uppercase) for resizing panes.
#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

# PREFIX \: Create a new vertial pane.
#bind \ split-window -h

# PREFIX -: Create a new horizontal pane.
#bind - split-window -v

# Allow sending prefix key to remote sessions (inception)
#bind-key -n C-n send-prefix