.tmux.conf

# tmux Global
#############

# Set zsh as default shell
set-option -g default-shell /bin/zsh

# Override prefix
unbind C-b
set -g prefix C-a

# Global keybindings
bind r source-file ~/.tmux.conf \; display "~/.tmux.conf reloaded!" # force a reload of the config file
unbind C-z # don't suspend client

# Incrase scrollback
set -g history-limit 10000

# Use vim keybindings in copy mode
setw -g mode-keys vi

# Enable mouse mode
set -g mouse on

# Session / Window / Pane Management
####################################

# session navigation
bind j split-window -v "tmux list-sessions | sed -E 's/:.*$//' | grep -v \"^$(tmux display-message -p '#S')\$\" | fzf --reverse | xargs tmux switch-client -t"

# start window and pane indexes at 1
set -g base-index 1
set -g pane-base-index 1
set -g renumber-windows on

# Easily swap a pane (targeted by pane number) with the current pane
bind-key s display-panes\; command-prompt -p "pane #: "  "swap-pane -t '%%'"

# break pane to a new window
bind b break-pane -d

# pane splitting, open all in current path
bind - split-window -v -c "#{pane_current_path}"
bind \\ split-window -h -c "#{pane_current_path}"
bind c new-window -c "#{pane_current_path}"

# pane navigation
bind -n C-h select-pane -L
bind -n C-j select-pane -D
bind -n C-k select-pane -U
bind -n C-l select-pane -R

# pane resizing
bind -n S-Left resize-pane -L 2
bind -n S-Right resize-pane -R 2
bind -n S-Down resize-pane -D 1
bind -n S-Up resize-pane -U 1

bind -n C-Left resize-pane -L 10
bind -n C-Right resize-pane -R 10
bind -n C-Down resize-pane -D 5
bind -n C-Up resize-pane -U 5

# Nested tmux
#############

# Extra variables
color_status_text="colour245"
color_window_off_status_bg="colour238"
color_light="white" #colour015
color_dark="colour232" # black= colour232
color_window_off_status_current_bg="colour254"
wg_is_keys_off="#[fg=$color_light,bg=$color_window_off_indicator]#([ $(tmux show-option -qv key-table) = 'off' ] && echo 'OFF')"

# Override local config
bind -T root F12  \
  set -g status-position top \;\
  set prefix None \;\
  set key-table off \;\
  set window-status-current-format "#[fg=colour8,bg=colour0,nobold,nounderscore,noitalics]#[fg=colour4,bg=colour8] $wg_is_keys_off #[fg=colour8,bg=colour0,nobold,nounderscore,noitalics]" \;\
  set window-status-current-style "fg=$color_dark,bold,bg=$color_window_off_status_current_bg" \;\
  if -F '#{pane_in_mode}' 'send-keys -X cancel' \;\
  refresh-client -S \;\

# Reset to defaults when
bind -T off F12 \
  set -g status-position bottom \;\
  set -u prefix \;\
  set -u key-table \;\
  set -u window-status-current-style \;\
  set -u window-status-current-format \;\
  refresh-client -S

# Status Bar
############
source-file ~/.dotfiles/.tmux/statusbar
set -g @prefix_highlight_empty_prompt '    '
set -g @prefix_highlight_empty_attr 'fg=colour0,bg=colour0'
set -g @prefix_highlight_fg 'colour4'
set -g @prefix_highlight_bg 'colour0'

# Plugins
#########

# List of plugins
set -g @plugin 'tmux-plugins/tpm'
set -g @plugin 'tmux-plugins/tmux-sensible'
set -g @plugin 'tmux-plugins/tmux-prefix-highlight'
set -g @plugin 'tmux-plugins/tmux-resurrect'
set -g @plugin 'tmux-plugins/tmux-continuum'

set -g @plugin 'christoomey/vim-tmux-navigator'

set -g @plugin 'xamut/tmux-weather'

# Plugin configuration
## tmux-continuum
set -g @continuum-restore 'on'

## tmux-resurrect - using vim's tpope/vim-obsession
set -g @resurrect-capture-pane-contents 'on'
set -g @resurrect-strategy-vim 'session'
set -g @resurrect-processes 'gitsh'

## tmux-weather
set-option -g @tmux-weather-interval 5
set-option -g @tmux-weather-location "Seattle"
set-option -g @tmux-weather-units "u"
set-option -g @tmux-weather-format 3

# SSH Configuration
# Remove SSH_AUTH_SOCK to disable tmux automatically resetting the variable
set -g update-environment "DISPLAY SSH_ASKPASS SSH_AGENT_PID \
                             SSH_CONNECTION WINDOWID XAUTHORITY"

# Use a symlink to look up SSH authentication
setenv -g SSH_AUTH_SOCK $HOME/.ssh/ssh_auth_sock

# Local overrides
source-file ~/.dotfiles/.tmux.conf.local

# install tpm if it's not already there
if "test ! -d ~/.tmux/plugins/tpm" \
   "run 'git clone https://github.com/tmux-plugins/tpm ~/.tmux/plugins/tpm && ~/.tmux/plugins/tpm/bin/install_plugins'"

# Initialize TMUX plugin manager (keep this line at the very bottom of tmux.conf)
run '~/.tmux/plugins/tpm/tpm'