.tmux.conf

bind ? split-window -v -p 60 'echo -n "tmux help\n\
Sessions <prefix>-( and ) - move between sessions\n\
         <prefix>-L       - ‘last’ (previously used) session\n\
         <prefix>-s       - choose a session from a list\n\
         <prefix>-$       - rename session\n\
\n\
Windows <prefix>-w          - select window from list\n\
        <prefix>-l          - select last window\n\
        <prefix>-1,9,n,p    - navigate between windows\n\
        <prefix>-,          - rename window\n\
        <prefix>-c          - create window\n\
        <prefix>-&          - kill window\n\
        <prefix>-left,right - move window left right\n\
\n\
Panes <prefix>-h,j,k,l,o - move between panes\n\
      <prefix>-e         - select-layout even-horizontal\n\
      <prefix>-z         - maximise pane\n\
      <prefix>-q         - show pane numbers\n\
      <prefix>-;         - goto last pane\n\
      <prefix>-H,J,K,L   - resize panes\n\
      <prefix>-{,}       - move pane\n\
      <prefix>-<space>   - switch layout (select-layout even-horizontal, even-vertical, main-horizontal, main-vertical, tiled)\n\
      <prefix>-c-o       - rotate panes\n\
      <prefix>-v,b       - split vertically horizontally\n\
      <prefix>-x         - kill pane\n\
\n\
Press Enter to continue\
"; read'

# ---------------------------- General
# history
set -g history-limit 100000

# color
# set -g default-terminal "screen-256color"
# set -g default-terminal "tmux-256color"
# set -ag terminal-overrides ",xterm-256color:RGB"
# https://gist.github.com/andersevenrud/015e61af2fd264371032763d4ed965b6
set -g default-terminal "xterm-256color"
set -ag terminal-overrides ",xterm-256color:RGB"

# C-b is not acceptable -- Vim uses it, use 'C-\'
unbind-key C-b
set -g prefix 'C-\'
bind-key 'C-\' send-prefix
# Can you have both?
#bind-key 'C-\' last-window

# Start numbering at 1 - nice cause it lines up with number keys
set -g base-index 1

# Allows for faster key repetition
set -s escape-time 0

# Necessary for pbcopy with OSC52
# https://medium.com/free-code-camp/tmux-in-practice-integration-with-system-clipboard-bcd72c62ff7b
set -g set-clipboard on

# 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 on

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

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

# auto renumber windows when deleted
set-option -g renumber-windows on

# auto window rename
#set-window-option -g automatic-rename

# rm mouse mode fail
#set -g mode-mouse off
set-option -g mouse on

# --------------------------- Keybindings

# Vi copy mode
set-window-option -g mode-keys vi
bind-key -T copy-mode-vi 'v' send -X begin-selection # Begin selection in copy mode.
bind-key -T copy-mode-vi 'C-v' send -X rectangle-toggle # Begin selection in copy mode.
bind-key -T copy-mode-vi 'y' send -X copy-selection # Yank selection in copy mode.
#bind p paste-buffer

bind t run-shell -b "tmux list-windows -a -F \"##{window_id}: [##{session_name}] ##{window_name} ##{window_activity}\" | column -t | sort -k 4 -r | fzf-tmux | cut -d \":\" -f 1 | xargs tmux switch-client -t"

# hjkl pane traversal
bind h select-pane -L
bind j select-pane -D
bind k select-pane -U
bind l select-pane -R

# alt-hjkl resize
bind -r ˙ resize-pane -L 3
bind -r ˚ resize-pane -U 1
bind -r ∆ resize-pane -D 1
bind -r ¬ resize-pane -R 3

# layout
bind e select-layout even-horizontal

# reload config
bind r source-file ~/.tmux.conf \; display-message "Config reloaded!"

# Move left and right - tabs
# https://superuser.com/questions/343572/how-do-i-reorder-tmux-windows
bind-key -n C-Left swap-window -t -1\; select-window -t -1
bind-key -n C-Right swap-window -t +1\; select-window -t +1

# clear the current pane
unbind C-l
#bind -n C-l send-keys C-l \; clear-history
bind C-l send-keys C-l \; clear-history

# screen splits
unbind '"' # h
unbind % # v
bind v split-window -h -c "#{pane_current_path}" # tmux is reversed
bind b split-window -v -c "#{pane_current_path}"
bind c new-window -c "#{pane_current_path}"

# synchronise panes - not sure this currently works, meant to copy this pane to all other panes in window?
bind y set-window-option synchronize-panes

# pane management
#bind t break-pane # or <prefix> ! - moves pane to new window # Doesn't work
# https://unix.stackexchange.com/questions/14300/moving-tmux-pane-to-window
#alt-j
bind-key ∆ choose-window 'join-pane -h -t "%%"'
#bind ∆ command-prompt -p "send pane to:" "join-pane -h -t '%%'"

# https://unix.stackexchange.com/questions/145857/how-do-you-hide-a-tmux-pane
bind-key ! break-pane -d -n _hidden_pane
bind-key $ join-pane -s $.0

# convenience for switching windows
bind C-n next-window
bind C-p previous-window

# ---------------------------- Plugins
#### Plugins
# List of plugins
set -g @plugin 'tmux-plugins/tpm'
set -g @plugin 'tmux-plugins/tmux-resurrect'
set -g @plugin 'tmux-plugins/tmux-continuum'
# last saved environment is automatically restored when tmux is started.
set -g @continuum-restore 'on'
set -g @continuum-save-interval '10'

# for vim
set -g @resurrect-strategy-vim 'session'
set -g @resurrect-capture-pane-contents 'on'
# Resurrect shortcuts:
#   prefix s - save
#   prefix r - restore
#   dtmux - delete tmux session (bash alias)

set -g @plugin 'seebi/tmux-colors-solarized'
set -g @colors-solarized 'light'

set -g @plugin 'sainnhe/tmux-fzf'
TMUX_FZF_LAUNCH_KEY="C-f"
bind-key "C-s" run-shell -b "~/.tmux/plugins/tmux-fzf/scripts/window.sh switch"

set -g @plugin 'tmux-plugins/tmux-prefix-highlight'

set -g @plugin 'tmux-plugins/tmux-fpp'
set -g @fpp-mode 'paste'
# <prefix> f to open a window with path (brew install fpp)

set -g @plugin 'tmux-plugins/tmux-urlview'
# <prefix> u to open a url with path (brew install urlview extract_url)

set -g @plugin 'tmux-plugins/tmux-open'
# <prefix> o - open highlighted app
# <prefix> C-o - open in editor
# <prefix> S - google search
set -g @open-S 'https://www.google.com/search?q='

# net speed (doesn't have macos support)
#set -g @plugin 'tmux-plugins/tmux-net-speed'

# Battery indicator
set -g @plugin 'tmux-plugins/tmux-battery'

# CPU tmux
#set -g @plugin 'tmux-plugins/tmux-cpu'
set -g @cpu_low_bg_color "#[fg=colour7,bg=colour14]"
#set -g @cpu_medium_bg_color "#[fg=colour8,bg=#ffff00]"
set -g @cpu_low_fg_color "#[fg=white]"
set -g @cpu_medium_fg_color "#[fg=colour8]"
set -g @cpu_high_fg_color "#[fg=white]"
set -g @cpu_high_thresh "50"
#set -g @cpu_high_bg_color "#[bg=#ff0000]"

set -g @plugin 'nhdaly/tmux-scroll-copy-mode'
# Enter copy mode when scrolling up

set -g @plugin 'tmux-plugins/tmux-yank'
# Copy to clipboard, not just local buffer

set -g status-interval 10
set -g status-right '#{prefix_highlight}#{battery_color_bg} #[fg=white]#{battery_percentage} #[bg=default]#{cpu_bg_color}#[fg=white]#{cpu_fg_color} CPU: #{cpu_percentage} #[fg=colour7,bg=colour11] %a %Y-%m-%d %H:%M:%S '
# From vim-airline you get this:
#[
#  'set -g status-justify "left"',
#  'set -g status "on"',
#  'set -g status-left-style "none"',
#  'set -g message-command-style "fg=colour7,bg=colour14"',
#  'set -g status-right-style "none"',
#  'set -g pane-active-border-style "fg=colour11"',
#  'set -g status-style "none,bg=colour7"',
#  'set -g message-style "fg=colour7,bg=colour14"',
#  'set -g pane-border-style "fg=colour14"',
#  'set -g status-right-length "100"',
#  'set -g status-left-length "100"',
#  'setw -g window-status-activity-style "none,fg=colour11,bg=colour7"',
#  'setw -g window-status-separator ""',
#  'setw -g window-status-style "none,fg=colour14,bg=colour7"',
#  'set -g status-left "#[fg=colour7,bg=colour11,bold] #S:#I #[fg=colour11,bg=colour7,nobold,nounderscore,noitalics]"',
#  'set -g status-right "#[fg=colour14,bg=colour7,nobold,nounderscore,noitalics]#[fg=colour7,bg=colour14] %a | %Y-%m-%d | %l:%M%p #[fg=colour11,bg=colour14,nobold,nounderscore,noitalics]#[fg=colour7,bg=colour11] #(whoami) "',
#  'setw -g window-status-format "#[fg=colour7,bg=colour7,nobold,nounderscore,noitalics]#[default] #I | #W #[fg=colour7,bg=colour7,nobold,nounderscore,noitalics]"',
#  'setw -g window-status-current-format "#[fg=colour7,bg=colour14,nobold,nounderscore,noitalics]#[fg=colour7,bg=colour14] #I | #W #[fg=colour14,bg=colour7,nobold,nounderscore,noitalics]"',
#];

set -g @plugin 'tmux-plugins/tmux-sessionist'
# prefix + g - prompts for session name and switches to it. Performs 'kind-of' name completion.
#   Faster than the built-in prefix + s prompt for long session lists.
# prefix + C (shift + c) - prompt for creating a new session by name.
# prefix + X (shift + x) - kill current session without detaching tmux.
# prefix + S (shift + s) - switches to the last session.
#   The same as built-in prefix + L that everyone seems to override with some other binding.
# prefix + @ - promote current pane into a new session.
#   Analogous to how prefix + ! breaks current pane to a new window.
# prefix + t<secondary-key> - join currently marked pane (prefix + m) to current session/window, and switch to it
#   secondary-keys
#     h, -, ": join horizontally
#     v, |, %: join vertically
#     f, @: join full screen


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

# ------------------------ Layout
# https://stackoverflow.com/questions/25532773/change-background-color-of-active-or-inactive-pane-in-tmux/33553372#33553372
# http://www.deanbodenham.com/learn/tmux-pane-colours.html
# Colours go after so that they're not overridden
set -g pane-border-style bg=colour7,fg=black
set -g pane-active-border-style bg=colour15
set -g window-style 'fg=default,bg=colour7'
set -g window-active-style 'fg=default,bg=colour15'

# ---------------------------- Status bar config
set -g status-justify left # center align window list
set -g status-left-length 20
set -g status-right-length 140
set -g status-left '>'
set -g status-style fg=default,bg=colour7
set -g status-left "#[fg=colour7,bg=colour11,bold] #S:#I #[fg=colour11,bg=colour7,nobold,nounderscore,noitalics]"
setw -g window-status-format "#[fg=colour7,bg=colour7,nobold,nounderscore,noitalics]#[default] #I | #W #[fg=colour7,bg=colour7,nobold,nounderscore,noitalics]"
setw -g window-status-current-format "#[fg=colour7,bg=colour14,nobold,nounderscore,noitalics]#[fg=colour7,bg=colour14] #I | #W #[fg=colour14,bg=colour7,nobold,nounderscore,noitalics]"