tmux.conf

# set scrollback history to 30000 (30k)
#set -g history-limit 30000

# set Ctrl+a as the default prefix key combination
unbind C-b
set -g prefix C-a
#bind-key a last-window

# Allows us to use C-a a <command> to send commands to a TMUX session inside
# another TMUX session
#bind-key a send-prefix

# Start numbering at 1
set-option -g base-index 1
setw -g pane-base-index 1

# Allows for faster key repetition
# shorten command delay
#set -sg escape-time 1

# reload ~/.tmux.conf using PREFIX r
#bind r source-file ~/.tmux.conf \; display "Reloaded tmux configuration!"

# renumber windows automatically when a middle window is closed
set-option -g renumber-windows 1

# map Vim movement keys as pane movement keys
bind h select-pane -L
bind j select-pane -D
bind k select-pane -U
bind l select-pane -R

# cycle through windows
bind -r C-h select-window -t :-
bind -r C-l select-window -t :+

# Change to current directory in new panes/windows
bind '%' split-window -h -c '#{pane_current_path}'  # Horizontal pane
bind '"' split-window -v -c "#{pane_current_path}"  # Vertical pane
bind c new-window -c '#{pane_current_path}'  # New window

# Set status bar
set -g status-bg black
set -g status-fg white
set -g status-left ""
set -g status-right "#[fg=green]#H"

# 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 off

# Activity monitoring
setw -g monitor-activity on
set -g visual-activity on

# Example of using a shell command in the status line
#set -g status-right "#[fg=yellow]#(uptime | cut -d ',' -f 2-)"

# Highlight active window
#set-window-option -g window-status-current-bg blue

# Color prompt
#set -g default-terminal "screen-256color"

# ZSH shell
set-option -g default-shell "/bin/zsh"

# Mouse mode
set-option -g mouse on

# renew environment variables when reattaching
set-option -g update-environment "SSH_AUTH_SOCK \
                                  SSH_CONNECTION \
                                  DISPLAY"

# ---------------------
# Copy & Paste
# ---------------------
# provide access to the clipboard for pbpaste, pbcopy
#set-option -g default-command "which reattach-to-user-namespace >/dev/null && reattach-to-user-namespace -l $SHELL || $SHELL"
set-window-option -g automatic-rename on
set-option -g automatic-rename on
set-option -g automatic-rename-format '#{b:pane_current_path}'

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

# setup 'v' to begin selection as in Vim
#bind-key -t vi-copy v begin-selection
#bind-key -t vi-copy y copy-pipe "reattach-to-user-namespace pbcopy"

# update default binding of 'Enter' to also use copy-pipe
#unbind -t vi-copy Enter
#bind-key -t vi-copy Enter copy-pipe "reattach-to-user-namespace pbcopy"

#bind y run 'tmux save-buffer - | reattach-to-user-namespace pbcopy '
#bind C-y run 'tmux save-buffer - | reattach-to-user-namespace pbcopy '

# ----------------------
# Status Bar
# -----------------------
set-option -g status on                # turn the status bar on
#set -g status-interval 5               # set update frequencey (default 15 seconds)
set -g status-justify centre           # center window list for clarity
# set-option -g status-position top    # position the status bar at top of screen

# visual notification of activity in other windows
setw -g monitor-activity on
set -g visual-activity on

# set color for status bar
set-option -g status-style fg=white,bg=colour235,bright

# set window list colors - red for active and cyan for inactive
set-window-option -g window-status-style fg=brightblue,bg=colour235,dim
set-window-option -g window-status-current-style fg=brightred,bg=colour236,bright

# show host name and IP address on left side of status bar
set -g status-left-length 70
set -g status-left "#[fg=brightgreen] #h : \
#[fg=brightblue]#(dig +short myip.opendns.com @208.67.222.222) :\
#[fg=brightyellow]#(ifconfig en0 | grep 'inet ' | awk '{print \"en0 \" $2}')\
 #(ifconfig eno1 | grep 'inet ' | awk '{print \"eno1 \" $2}')\
#[fg=red]#(ifconfig tun0 | grep 'inet ' | awk '{print \"vpn \" $2}') "

# show session name, window & pane number, date and time on right side of
# status bar
set -g status-right-length 70
set -g status-right "#{prefix_highlight} #[fg=grey100]#S #[fg=lightsteelblue2]#I:#P \
#[fg=brightyellow]:: %d %b %Y #[fg=yellow2]::%l:%M %p\
#[fg=yellow4] :: Continuum:#{continuum_status}\
#{cpu_fg_color} ::#{cpu_percentage} #{cpu_icon}"

# Tmux child window integration
bind -n M-F11 set-option -g status-style fg=colour236,bg=colour238,dim
bind -n M-F12 set-option -g status-style fg=white,bg=colour235,bright
bind -T root F12 \
  send-keys M-F12 \;\
  set-option -g status-style fg=colour235,bg=colour238,dim \;\
  set prefix None \;\
  set key-table off \;\

bind -T off F12 \
  send-keys M-F11 \;\
  set-option -g status-style fg=white,bg=colour235,bright \;\
  set -u prefix \;\
  set -u key-table \;\

# List of plugins
set -g @plugin 'tmux-plugins/tmux-open'
set -g @plugin 'tmux-plugins/tmux-copycat'
set -g @plugin 'tmux-plugins/tmux-cpu'
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 'tmux-plugins/tmux-sensible'
set -g @plugin 'tmux-plugins/tmux-sessionist'
set -g @plugin 'tmux-plugins/tmux-yank'
set -g @plugin 'sainnhe/tmux-fzf'
set -g @plugin 'tmux-plugins/tpm'

# Plugin specific options
## Continuum
set -g @continuum-restore 'on' # enable automatic restore on tmux server start
set -g @continuum-save-interval '15' # save session every 15 minutes
set -g @continuum-timestamp 'on' # show last session saved timestamp in the status
## Prefix highlight
set -g @prefix_highlight_fg 'black'
set -g @prefix_highlight_bg 'brightwhite'
## Resurrect
#set -g @resurrect-strategy-vim 'session'
set -g @resurrect-capture-pane-contents 'on'

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