tmux.conf

set-option -g default-terminal tmux-256color

# Rebind action key to `
unbind-key C-b
set-option -g prefix `
bind-key ` send-prefix

# allow switching between two prefixes
bind-key C-q set-option -g prefix C-g \; unbind-key ` \; bind-key C-g send-prefix
bind-key C-w set-option -g prefix ` \; unbind-key C-g \; bind-key ` send-prefix

# Confirm before killing
bind-key k confirm kill-window
bind-key K confirm kill-server

# Refresh the screen, sometimes just needed
bind-key R refresh-client

# Make the escape key not delay so vim is more responsive
set -sg escape-time 0

# Make tmux control the xterm window title based on title of current pane
set -g set-titles on
set-option -g allow-rename on
set-window-option -g xterm-keys on
set-window-option -g alternate-screen on
set-window-option -g wrap-search off

# Move windows around
unbind-key .
bind-key m command "swap-window -t '%%'"

# Easy movement
bind-key -n M-Left prev
bind-key -n M-Right next

# Have a good history
set-option -g history-limit 50000

# Make tmux emit focus events
set -g focus-events on

# I almost never want to stop at - or _ in words
set-option -g word-separators ' @'

# Start window indexing at 1
set-option -g base-index 1
set-window-option -g pane-base-index 1

# Pause so I can read the dang message
set-option -g display-time 2500

# Don't notify on window activity
set-window-option -g monitor-activity off
set-option -g visual-bell off
set-option -g visual-activity off

# Style the tabs
set-option -g message-style 'fg=blue,bg=black'
set-window-option -g mode-style 'fg=colour236,bold,bg=colour230'
set-option -g status-left ''
set-option -g status-style 'fg=black,bg=colour0'
set-option -g status-interval 1
# set-option -g status-right '%b %d #[fg=cyan]%I:%M #[default]%p'
set -g status-right '#(usage --rgb 1 --tmux --order fwcai)'
set-window-option -g window-status-format '#[fg=colour10,bg=colour0]#I:#W '
set-window-option -g window-status-current-format '#[fg=black,bg=colour10] #[fg=black,bold,bg=colour10]#I:#W #[fg=colour10,bg=black] '
set-window-option -g window-status-style 'fg=colour10,bg=terminal'

# The command mode box
set-option -g message-style 'bg=default,fg=colour248'

# Let me know which pane is active
set-option -g pane-active-border-style 'fg=yellow,bg=default'
set-option -g pane-border-style 'fg=black,bg=default'

# split windows like vim
# vim's definition of a horizontal/vertical split is reversed from tmux's
unbind-key '"'
bind-key s split-window -v -c "#{?pane_current_path,#{pane_current_path},$HOME}"
unbind-key %
bind-key v split-window -h -c "#{?pane_current_path,#{pane_current_path},$HOME}"

bind-key c neww -c "#{?pane_current_path,#{pane_current_path},$HOME}"

# Make copy commands operate more like vim
unbind-key -T copy-mode-vi ' '
# unbind-key -t copy-mode-vi Enter
bind-key -T copy-mode-vi v send-keys -X begin-selection
bind-key -T copy-mode-vi y send-keys -X copy-selection-and-cancel
bind-key -T copy-mode-vi C-v send-keys -X rectangle-toggle\; send-keys -X begin-selection
bind-key -T copy-mode-vi Escape send-keys -X cancel
bind-key -T copy-mode-vi Space send-keys -X page-down

# move around panes with j and k, a bit like vim
bind-key h select-pane -L
bind-key l select-pane -R
bind-key j select-pane -D
bind-key k select-pane -U

# The above are fallbacks for when the next set don't fullfil you movment needs,
# e.g. tmux on a remove server and your local tmux window has multiple panes
# These is inlined here instead of an external script to keep latency low
bind-key -n C-h run "[[ $(tmux display-message -p '#{pane_current_command} #{window_panes}') =~ ^n?vim | 1$ ]] && tmux send-keys C-h || tmux select-pane -L"
bind-key -n C-j run "[[ $(tmux display-message -p '#{pane_current_command} #{window_panes}') =~ ^n?vim | 1$ ]] && tmux send-keys C-j || tmux select-pane -D"
bind-key -n C-k run "[[ $(tmux display-message -p '#{pane_current_command} #{window_panes}') =~ ^n?vim | 1$ ]] && tmux send-keys C-k || tmux select-pane -U"
bind-key -n C-l run "[[ $(tmux display-message -p '#{pane_current_command} #{window_panes}') =~ ^n?vim | 1$ ]] && tmux send-keys C-l || tmux select-pane -R"
# bind-key -n C-\ run "[[ $(tmux display-message -p '#{pane_current_command} #{window_panes}') =~ ^n?vim | 1$ ]] && tmux send-keys 'C-\\' || tmux select-pane -l"

# vi-style controls for copy mode
set-option -g status-keys vi
set-window-option -g mode-keys vi

# My default terminal has 180 columns so setup the max vertical window width
# to be half of that for ease of viewing and the max rows is 66 so half of that
set-window-option -g main-pane-width 90
set-window-option -g main-pane-height 33
set-window-option -g aggressive-resize on

# enable the mouse
set-option -g mouse on

# Only enter copy-mode if the pane is not in alternate mode, e.g. vim
bind-key -T root WheelUpPane if-shell -F -t = "#{alternate_on}" "send-keys -M" "select-pane -t =; copy-mode -e; send-keys -M"
bind-key -T root WheelDownPane if-shell -F -t = "#{alternate_on}" "send-keys -M" "select-pane -t =; send-keys -M"

# Integrate direnv
set-option -g update-environment "DIRENV_DIFF DIRENV_DIR DIRENV_WATCHES"
set-environment -gu DIRENV_DIFF
set-environment -gu DIRENV_DIR
set-environment -gu DIRENV_WATCHES
set-environment -gu DIRENV_LAYOUT

new-session -d -s main 'exec sudo htop'

run-shell -b 'init-tmux'

set -g @plugin 'tmux-plugins/tpm'
set -g @plugin 'tmux-plugins/tmux-resurrect'
set -g @plugin 'tmux-plugins/tmux-continuum'
set -g @plugin 'tmux-plugins/tmux-sessionist'
set -g @plugin 'tmux-plugins/tmux-open'
set -g @plugin 'tmux-plugins/tmux-sidebar'

set -g @continuum-restore 'on'
set -g @resurrect-strategy-vim 'session'
set -g @resurrect-strategy-nvim 'session'
set -g @resurrect-capture-pane-contents 'on'
set -g @sidebar-tree-command 'tree -C'

run '~/.tmux/plugins/tpm/tpm'