.tmux.conf

# split windows like vim
# vim's definition of a horizontal/vertical split is reversed from tmux's
bind s split-window -v -c "#{pane_current_path}"
bind v split-window -h -c '#{pane_current_path}'

bind ^s split-window -v -c "#{pane_current_path}"
bind ^v split-window -h -c "#{pane_current_path}"

# open panes in same path when using canonical tmux splits
bind '"' split-window -c "#{pane_current_path}"
bind % split-window -h -c "#{pane_current_path}"

# 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

bind ^h select-pane -L
bind ^j select-pane -D
bind ^k select-pane -U
bind ^l select-pane -R

# resize panes like vim
# feel free to change the "1" to however many lines you want to resize by, only
# one at a time can be slow
bind -r < resize-pane -L 10
bind -r > resize-pane -R 10
bind -r - resize-pane -D 10
bind -r + resize-pane -U 10

# bind : to command-prompt like vim
# this is the default in tmux already
bind : command-prompt

# session management
bind C new-session
bind L choose-session

# vi-style controls for copy mode
setw -g mode-keys vi

# Set the prefix to ^A, like screen
unbind C-b
set -g prefix ^A
bind a send-prefix

# Start numbering windows at 1
set -g base-index 1

bind ^a last-window # toggle last window like screen

set -g update-environment "DISPLAY WINDOWID SSH_ASKPASS SSH_AGENT_PID SSH_CONNECTION"

bind K confirm kill-server
bind X confirm kill-window

# longer scrollback
set -g history-limit 10000

# let us use utf-8 drawing characters to make tab-like window formats
# setw -g utf8 on
# set -g status-utf8 on

set -g status-bg default
set -g status-fg white

# left side of status bar holds "(>- session name -<)"
set -g status-left-length 100
set -g status-left-bg green
set -g status-left-fg black
set -g status-left-attr bold
set -g status-left ''

# right side of status bar holds "[host name] (date time)"
set -g status-right-length 100
set -g status-right-fg black
set -g status-right-attr bold
set -g status-right '#[fg=colour214,bg=colour235] #H#[fg=colour238]:#[fg=colour178]#S #[fg=colour039,bg=colour238] %y.%m.%d %H:%M '

# make background window look like white tab
set-window-option -g window-status-bg default
set-window-option -g window-status-fg white
set-window-option -g window-status-attr none
set-window-option -g window-status-format '#[fg=colour214,bg=colour235] #I #[fg=white,bg=colour236] #W #[default]'

# make foreground window look like bold yellow foreground tab
set-window-option -g window-status-current-attr none
set-window-option -g window-status-current-format '#[fg=black,bg=colour214] #I #[fg=brightwhite,bg=colour238] #W #[default]'

# active terminal yellow border, non-active white
set -g pane-border-bg default
set -g pane-border-fg colour238
set -g pane-active-border-bg default
set -g pane-active-border-fg colour214

# set a 256color $TERM variable so programs inside tmux know they can use 256 colors
set -g default-terminal screen-256color

# disable mouse mode by default
# set -g mode-mouse off
# set -g mouse-resize-pane off
# set -g mouse-select-pane off
# set -g mouse-select-window off

# Toggle mouse on with m
bind m \
  set -g mode-mouse on \;\
  set -g mouse-resize-pane on \;\
  set -g mouse-select-pane on \;\
  set -g mouse-select-window on \;\
  display 'Mouse: ON'

# Toggle mouse off with M
bind M \
  set -g mode-mouse off \;\
  set -g mouse-resize-pane off \;\
  set -g mouse-select-pane off \;\
  set -g mouse-select-window off \;\
  display 'Mouse: OFF'

# reload tmux config file with C-a r
bind r source ~/.tmux.conf

# Create a new window and prompt for name
bind N command-prompt "new-window -n '%%' -c '#{pane_current_path}'"
bind c new-window -c '#{pane_current_path}'

# Rebind prefix to b
bind B set -g prefix ^b
bind A set -g prefix ^a

# Works with ~/.ssh/rc to allow re-attaching to tmuxes after ssh reconnect
# setenv -g SSH_AUTH_SOCK $HOME/.ssh/ssh_auth_sock

# set-option -g default-shell /bin/zsh
set -g default-shell $SHELL 
set -g default-command "reattach-to-user-namespace -l ${SHELL}"

# see http://stackoverflow.com/questions/39645253/clipboard-failure-in-tmux-vim-after-upgrading-to-macos-sierra