tmux.conf

# for tmux 3.1

#############
#  general  #
#############

set -g base-index 1
set -g renumber-windows on
set -g mouse on
set -g history-limit 50000
set -g display-time 4000
set -g default-terminal "screen-256color"
set -ga terminal-overrides ",xterm-256color:Tc"
set -g set-clipboard on
set -g set-titles on
set -g focus-events on

###########
#  theme  #
###########

# style
tmux_color="#{?client_prefix,yellow,#{?pane_in_mode,blue,#{?pane_synchronized,magenta,green}}}"
tmux_style="#[default,fg=${tmux_color},reverse]"

# separators
tmux_lmain1="#{?USE_POWERLINE,,}"
tmux_lmain2="#{?USE_POWERLINE,, }"
tmux_lsub="#{?USE_POWERLINE,,|}"
tmux_rmain="#{?USE_POWERLINE,,}"
tmux_rsub="#{?USE_POWERLINE,,|}"

# segments
tmux_rbegin="${tmux_style}#[noreverse]${tmux_rmain}#[reverse] "
tmux_sbegin="${tmux_style}${tmux_lmain1} "
tmux_send=" #[noreverse]${tmux_lmain1}"
tmux_mode="#{?pane_in_mode,copy,#{client_key_table}}"
tmux_window="#W#{?window_flags,#{window_flags},}"
tmux_host="#{?#{==:#{SSH_CONNECTION},},,#{?USE_POWERLINE, ,S:}}#{=17:host_short}"
tmux_sync="#{?pane_synchronized,sync ${tmux_rsub} ,}"
tmux_table="${tmux_mode} ${tmux_rsub} "
tmux_mode="#{?#{==:${tmux_mode},root},${tmux_sync},${tmux_table}}"

set -g status-style "none"
set -g status-left "${tmux_style} #{=7:session_name} #[noreverse]${tmux_lmain2}"
set -g status-right "${tmux_rbegin}${tmux_mode}%H:%M %b-%d-%y ${tmux_rsub} ${tmux_host} "
set -g status-right-length 50
set -g window-status-format " #I ${tmux_lsub} ${tmux_window}"
set -g window-status-current-format "${tmux_sbegin}#I ${tmux_lsub} ${tmux_window}${tmux_send}"
set -ga update-environment "USE_POWERLINE"

set-hook -g "window-layout-changed" {
  if -b "[ '#{window_panes}' -gt 1 ]" \
    "set pane-border-status top" "set pane-border-status off"
}

setenv -gu tmux_color
setenv -gu tmux_style
setenv -gu tmux_lmain1
setenv -gu tmux_lmain2
setenv -gu tmux_lsub
setenv -gu tmux_rmain
setenv -gu tmux_rsub
setenv -gu tmux_rbegin
setenv -gu tmux_sbegin
setenv -gu tmux_send
setenv -gu tmux_mode
setenv -gu tmux_window
setenv -gu tmux_host
setenv -gu tmux_sync
setenv -gu tmux_table
setenv -gu tmux_mode

#################
#  keybindings  #
#################

# prefix
set -g prefix C-z
unbind -a -T prefix
bind -N "Send the prefix key" C-z send-prefix

# vi bindings
set -g mode-keys vi
set -g status-keys vi

# Don't wait after escape key input, since it slows down mode-switching in vim.
set -g escape-time 0

# mouse
bind -n MouseDrag1Status swap-window -d -t=
bind -n WheelUpPane if -Ft= "#{||:#{mouse_any_flag},#{pane_in_mode}}" \
  "select-pane -t=; send -M" \
  "if -Ft= '#{alternate_on}' 'select-pane -t=; send -t= Up' 'select-pane -t=; copy-mode -e; send -M'"
bind -n WheelDownPane if -Ft= "#{||:#{?alternate_on,#{mouse_any_flag},1},#{pane_in_mode}}" \
  "select-pane -t=; send -M" \
  "select-pane -t=; send -t= Down"

#################
#  prefix mode  #
#################

bind -N "Select the pane above" k select-pane -U \; switch-client -T prefix
bind -N "Select the pane below" j select-pane -D \; switch-client -T prefix
bind -N "Select the left pane" h select-pane -L \; switch-client -T prefix
bind -N "Select the right pane" l select-pane -R \; switch-client -T prefix
bind -N "Resize pane up" K resize-pane -U \; switch-client -T prefix
bind -N "Resize pane down" J resize-pane -D \; switch-client -T prefix
bind -N "Resize pane left" H resize-pane -L \; switch-client -T prefix
bind -N "Resize pane right" L resize-pane -R \; switch-client -T prefix
bind -N "Scroll one page up" C-b copy-mode -ue
bind -N "Swap pane with the one above" \
  C-k swap-pane -U \; switch-client -T prefix
bind -N "Swap pane with the one below" \
  C-j swap-pane -D \; switch-client -T prefix
bind -N "Create a new window" C-n new-window \; switch-client -T prefix
bind -N "Scroll halfpage up" C-u copy-mode -e \; send -X halfpage-up
bind -N "Scroll one line up" C-y copy-mode -e \; send -X scroll-up
bind -N "+goto: Show help with 'Prefix g ?'" g switch-client -T g
bind -N "Display pane numbers" G display-panes \; switch-client -T prefix
bind -N "Repeat last search forward" n copy-mode -e \; send -X search-again
bind -N "Repeat last search backward" N copy-mode -e \; send -X search-reverse

bind -N "Enter insert mode" \
  i setw synchronize-panes off \; switch-client -T root
bind -N "+change: Show help with 'Prefix c ?'" c switch-client -T c
bind -N "+delete: Show help with 'Prefix d ?'" d switch-client -T d
bind -N "+search: Show help with 'Prefix f ?'" f switch-client -T regex
bind -N "Toggle the marked pane" m select-pane -m \; switch-client -T prefix
bind -N "Paste the most recent paste buffer" \
  p paste-buffer \; switch-client -T prefix
bind -N "+toggle: Show help with 'Prefix t ?'" t switch-client -T t
bind -N "Kill the active pane" \
  x confirm-before -p "kill-pane #P? (y/n)" kill-pane \; switch-client -T prefix
bind -N "Enter copy mode. Press 'K' in copy mode to show help." \
  y copy-mode
bind -N "Enter insert mode and sync input with all visible panes" \
  I setw synchronize-panes on \; switch-client -T root
bind -N "Show clock" T clock-mode \; switch-client -T prefix
bind -N "Kill current window" \
  X confirm-before -p "kill-window #W? (y/n)" kill-window \;\
    switch-client -T prefix
bind -N "+client: Show help with 'Prefix Z ?'" Z switch-client -T Z
bind -N "+prev: Show help with 'Prefix [ ?'" [ switch-client -T lbracket
bind -N "+next: Show help with 'Prefix ] ?'" ] switch-client -T rbracket
bind -N "Switch to the last client" C-6 switch-client -l
bind -N "Display window information" \
  C-g display-message \; switch-client -T prefix
bind -N "Redraw the current client" \
  C-l refresh-client \; switch-client -T prefix
bind -N "Move to the previously active pane" \
  C-o if '[ #{window_panes} -gt 1 ]' last-pane last-window \;\
      switch-client -T prefix
bind -N "+pane: Show help with 'Prefix C-w ?'" C-w switch-client -T ctrl-w
bind -N "+buffer: Show help with 'Prefix \" ?'" '"' switch-client -T buffer
bind -N "Prompt for window index to select" \
  "'" command-prompt -p index "select-window -t ':%%'"
bind -N "Alternative prefix key, for nested clients" . send-prefix
bind -N "Search forward" / copy-mode \; command-prompt -ip "(search up)" \
  -I"#{pane_search_string}" "send -X search-backward-incremental \"%%%\""
bind -N "Prompt for a command" : command-prompt \; switch-client -T prefix
bind -N "Show help. For more detailed help, run ':list-keys' instead." \
  ? list-keys -aN
bind -N "Zoom the active pane" Enter resize-pane -Z \; switch-client -T prefix
bind -N "Select next layout" Space next-layout \; switch-client -T prefix
bind Any switch-client -T prefix

###############
#  copy mode  #
###############

bind -T copy-mode-vi v send -X begin-selection
bind -T copy-mode-vi K list-keys -aNT copy-mode-vi
bind -T copy-mode-vi / command-prompt -ip "(search up)" \
  -I"#{pane_search_string}" "send -X search-backward-incremental \"%%%\""
bind -T copy-mode-vi ? command-prompt -ip "(search down)" \
  -I"#{pane_search_string}" "send -X search-forward-incremental \"%%%\""
bind -T copy-mode-vi C-v send -X begin-selection \;\
  send -X rectangle-toggle

############
#  c mode  #
############

bind -T c -N "Rename current session" \
  s command-prompt -I "#S" "rename-session '%%'" \; switch-client -T prefix
bind -T c -N "Rename current window" \
  w command-prompt -I "#W" "rename-window '%%'" \; switch-client -T prefix
bind -T c -N "Show help" ? list-keys -aNT c
bind -T c Any switch-client -T prefix

############
#  d mode  #
############

bind -T d -N "Delete the most recent paste buffer" \
  b delete-buffer \; switch-client -T prefix
bind -T d -N "Clear the marked pane" \
  m select-pane -M \; switch-client -T prefix
bind -T d -N "Show help" ? list-keys -aNT d
bind -T d Any switch-client -T prefix

############
#  g mode  #
############

bind -T g -N "Select window 0" 0 select-window -t :0 \; switch-client -T prefix
bind -T g -N "Select window 1" 1 select-window -t :1 \; switch-client -T prefix
bind -T g -N "Select window 2" 2 select-window -t :2 \; switch-client -T prefix
bind -T g -N "Select window 3" 3 select-window -t :3 \; switch-client -T prefix
bind -T g -N "Select window 4" 4 select-window -t :4 \; switch-client -T prefix
bind -T g -N "Select window 5" 5 select-window -t :5 \; switch-client -T prefix
bind -T g -N "Select window 6" 6 select-window -t :6 \; switch-client -T prefix
bind -T g -N "Select window 7" 7 select-window -t :7 \; switch-client -T prefix
bind -T g -N "Select window 8" 8 select-window -t :8 \; switch-client -T prefix
bind -T g -N "Select window 9" 9 select-window -t :9 \; switch-client -T prefix
bind -T g -N "Show session/window/pane tree" b choose-tree -Z
bind -T g -N "Scroll to top" g copy-mode -e \; send -X history-top
bind -T g -N "Select the next window" \
  t next-window \; switch-client -T prefix
bind -T g -N "Select the previous window" \
  T previous-window \; switch-client -T prefix
bind -T g -N "Show help" ? list-keys -aNT g
bind -T g Any switch-client -T prefix

############
#  t mode  #
############

bind -T t -N "Toggle activity monitor" \
  a setw monitor-activity \;\
    display-message 'monitor-activity #{?monitor-activity,on,off}' \;\
    switch-client -T prefix
bind -T t -N "Toggle activity monitor" \
  b setw monitor-bell \;\
    display-message 'monitor-bell #{?monitor-bell,on,off}' \;\
    switch-client -T prefix
bind -T t -N "Show help" ? list-keys -aNT t
bind -T t Any switch-client -T prefix

############
#  Z mode  #
############

bind -T Z -N "Choose client from list" C choose-client -Z
bind -T Z -N "Suspend the current client" Q suspend-client
bind -T Z -N "Detach the current client" Z detach-client
bind -T Z -N "Show help" ? list-keys -aNT Z
bind -T Z Any switch-client -T prefix

#################
#  buffer mode  #
#################

bind -T buffer -N "Choose a paste buffer from a list" p choose-buffer -Z
bind -T buffer -N "Choose a paste buffer from a list and copy to clipboard" \
  + choose-buffer -Z { run "tmux show-buffer -b '%%' | xclip -i -sel clip" }
bind -T buffer -N "Show help" ? list-keys -aNT buffer
bind -T buffer Any switch-client -T prefix

###################
#  lbracket mode  #
###################

bind -T lbracket -N "Select the previous window with an alert" \
  a previous-window -a \; switch-client -T prefix
bind -T lbracket -N "Switch to previous client" \
  s switch-client -p \; switch-client -T prefix
bind -T lbracket -N "Show help" ? list-keys -aNT lbracket
bind -T lbracket Any switch-client -T prefix

###################
#  rbracket mode  #
###################

bind -T rbracket -N "Select the next window with an alert" \
  a next-window -a \; switch-client -T prefix
bind -T rbracket -N "Switch to next client" \
  s switch-client -n \; switch-client -T prefix
bind -T rbracket -N "Show help" ? list-keys -aNT rbracket
bind -T rbracket Any switch-client -T prefix

#################
#  ctrl-w mode  #
#################

bind -T ctrl-w -N "Resize pane up by 5" \
  K resize-pane -U 5 \; switch-client -T prefix
bind -T ctrl-w -N "Resize pane down by 5" \
  J resize-pane -D 5 \; switch-client -T prefix
bind -T ctrl-w -N "Resize pane left by 5" \
  H resize-pane -L 5 \; switch-client -T prefix
bind -T ctrl-w -N "Resize pane right by 5" \
  L resize-pane -R 5 \; switch-client -T prefix

bind -T ctrl-w -N "Close all other pane in current window" \
  o confirm-before -p "kill panes? (y/n)" "kill-pane -a" \;\
    switch-client -T prefix
bind -T ctrl-w -N "Rotate through the panes" \
  r rotate-window \; switch-client -T prefix
bind -T ctrl-w -N "Split window horizontally" \
  s split-window -v -c "#{pane_current_path}" \;\
    switch-client -T prefix
bind -T ctrl-w -N "Split window vertically" \
  v split-window -h -c "#{pane_current_path}" \;\
    switch-client -T prefix
bind -T ctrl-w -N "Select the next window" \
  w select-pane -t :.+ \; switch-client -T prefix
bind -T ctrl-w -N "Rotate through the panes in reverse" \
  R rotate-window -D \; switch-client -T prefix
bind -T ctrl-w -N "Break pane to a new window" \
  T break-pane \; switch-client -T prefix
bind -T ctrl-w -N "Close all other pane in current window" \
  C-o confirm-before -p "kill panes? (y/n)" "kill-pane -a" \;\
    switch-client -T prefix
bind -T ctrl-w -N "Rotate through the panes" \
  C-r rotate-window \; switch-client -T prefix
bind -T ctrl-w -N "Split window horizontally" \
  C-s split-window -v -c "#{pane_current_path}" \; switch-client -T prefix
bind -T ctrl-w -N "Split window vertically" \
  C-v split-window -h -c "#{pane_current_path}" \; switch-client -T prefix
bind -T ctrl-w -N "Select the next window" \
  C-w select-pane -t :.+ \; switch-client -T prefix
bind -T ctrl-w -N "Search for a pane" / command-prompt "find-window -Z -- '%%'"
bind -T ctrl-w -N "Spread panes out evenly" \
  = select-layout -E \; switch-client -T prefix
bind -T ctrl-w -N "Show help" ? list-keys -aNT ctrl-w
bind -T ctrl-w Any switch-client -T prefix

#######################
#  regex search mode  #
#######################

bind -T regex -N "Search urls" u copy-mode -e \; send -X search-backward \
  '(https?://|git@|git://|ssh://|ftp://|file:///)[[:alnum:]?=%/_.:,;~@!#$&()*+-]*'
bind -T regex -N "Search files" f copy-mode -e \; send -X search-backward \
  '(^|^\.|[[:space:]]|[[:space:]]\.|[[:space:]]\.\.|^\.\.)[[:alnum:]~_-]*/[][[:alnum:]_.#$%&+=/@-]*'
bind -T regex -N "Search hashes" '#' copy-mode -e \; send -X search-backward \
  '([0-9a-f]{7,40}|[[:alnum:]]{52}|[0-9a-f]{64})'
bind -T regex -N "Search digits" 1 copy-mode -e \; send -X search-backward \
  '[[:digit:]]+'
bind -T regex -N "Search ipv4" 4 copy-mode -e \; send -X search-backward \
  '[[:digit:]]{1,3}\.[[:digit:]]{1,3}\.[[:digit:]]{1,3}\.[[:digit:]]{1,3}'
bind -T regex -N "Backwards regex search" \
  / command-prompt -p "(regex search up)" \
      -I"#{pane_search_string}" "copy-mode; send -X search-backward \"%%%\""
bind -T regex -N "Backwards regex search" \
  ? command-prompt -p "(regex search down)" \
      -I"#{pane_search_string}" "copy-mode; send -X search-forward \"%%%\""
bind -T regex -N "Show help" ? list-keys -aNT regex
bind -T regex Any switch-client -T prefix