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# ==========================
# === General settings ===
# ==========================
set -g default-terminal "screen-256color"
set -g history-limit 20000
set -g buffer-limit 20
set -sg escape-time 0
set -g display-time 1500
set -g remain-on-exit off
set -g repeat-time 300
setw -g allow-rename off
setw -g automatic-rename off
setw -g aggressive-resize on
# Change prefix key to C-a, easier to type, same to "screen"
unbind C-b
set -g prefix C-a
# Set parent terminal title to reflect current window in tmux session
set -g set-titles on
set -g set-titles-string "#I:#W"
# Start index of window/pane with 1, because we're humans, not computers
set -g base-index 1
setw -g pane-base-index 1
# Enable mouse support
set -g mouse on
# ==========================
# === Key bindings ===
# ==========================
# Unbind default key bindings, we're going to override
unbind "\$" # rename-session
unbind , # rename-window
unbind % # split-window -h
unbind '"' # split-window
unbind } # swap-pane -D
unbind { # swap-pane -U
unbind [ # paste-buffer
unbind ]
unbind "'" # select-window
unbind n # next-window
unbind p # previous-window
unbind l # last-window
unbind M-n # next window with alert
unbind M-p # next window with alert
unbind o # focus thru panes
unbind & # kill-window
unbind "#" # list-buffer
unbind = # choose-buffer
unbind z # zoom-pane
unbind M-Up # resize 5 rows up
unbind M-Down # resize 5 rows down
unbind M-Right # resize 5 rows right
unbind M-Left # resize 5 rows left
# Edit configuration and reload
bind C-e new-window -n 'tmux.conf' "sh -c '\${EDITOR:-vim} ~/.tmux.conf && tmux source ~/.tmux.conf && tmux display \"Config reloaded\"'"
# Reload tmux configuration
bind C-r source-file ~/.tmux.conf \; display "Config reloaded"
# new window and retain cwd
bind c new-window -c "#{pane_current_path}"
# Prompt to rename window right after it's created
set-hook -g after-new-window 'command-prompt -I "#{window_name}" "rename-window '%%'"'
# Rename session and window
bind r command-prompt -I "#{window_name}" "rename-window '%%'"
bind R command-prompt -I "#{session_name}" "rename-session '%%'"
# Split panes
bind | split-window -h -c "#{pane_current_path}"
bind _ split-window -v -c "#{pane_current_path}"
# Select pane and windows
bind -r C-[ previous-window
bind -r C-] next-window
bind -r [ select-pane -t :.-
bind -r ] select-pane -t :.+
bind -r Tab last-window # cycle thru MRU tabs
bind -r C-o swap-pane -D
# Zoom pane
bind + resize-pane -Z
# Link window
bind L command-prompt -p "Link window from (session:window): " "link-window -s %% -a"
# Swap panes back and forth with 1st pane
# When in main-(horizontal|vertical) layouts, the biggest/widest panel is always @1
bind \ if '[ #{pane_index} -eq 1 ]' \
'swap-pane -s "!"' \
'select-pane -t:.1 ; swap-pane -d -t 1 -s "!"'
# Kill pane/window/session shortcuts
bind x kill-pane
bind X kill-window
bind C-x confirm-before -p "kill other windows? (y/n)" "kill-window -a"
bind Q confirm-before -p "kill-session #S? (y/n)" kill-session
# Merge session with another one (e.g. move all windows)
# If you use adhoc 1-window sessions, and you want to preserve session upon exit
# but don't want to create a lot of small unnamed 1-window sessions around
# move all windows from current session to main named one (dev, work, etc)
bind C-u command-prompt -p "Session to merge with: " \
"run-shell 'yes | head -n #{session_windows} | xargs -I {} -n 1 tmux movew -t %%'"
# Detach from session
bind d detach
bind D if -F '#{session_many_attached}' \
'confirm-before -p "Detach other clients? (y/n)" "detach -a"' \
'display "Session has only 1 client attached"'
# Hide status bar on demand
bind C-s if -F '#{s/off//:status}' 'set status off' 'set status on'
# ==================================================
# === Window monitoring for activity and silence ===
# ==================================================
bind m setw monitor-activity \; display-message 'Monitor window activity [#{?monitor-activity,ON,OFF}]'
bind M if -F '#{monitor-silence}' \
'setw monitor-silence 0 ; display-message "Monitor window silence [OFF]"' \
'command-prompt -p "Monitor silence: interval (s)" "setw monitor-silence %%"'
# Activity bell and whistles
set -g visual-activity on
# TODO: Does not work as well, check on newer versions
# set -g visual-silence on
# BUG: bell-action other ignored · Issue #1027 · tmux/tmux · GitHub - https://github.com/tmux/tmux/issues/1027
# set -g visual-bell on
# setw -g bell-action other
# ================================================
# === Copy mode, scroll and clipboard ===
# ================================================
set -g @copy_use_osc52_fallback on
# Prefer vi style key table
setw -g mode-keys vi
bind p paste-buffer
bind C-p choose-buffer
# trigger copy mode by
bind -n M-Up copy-mode
# Scroll up/down by 1 line, half screen, whole screen
bind -T copy-mode-vi M-Up send-keys -X scroll-up
bind -T copy-mode-vi M-Down send-keys -X scroll-down
bind -T copy-mode-vi M-PageUp send-keys -X halfpage-up
bind -T copy-mode-vi M-PageDown send-keys -X halfpage-down
bind -T copy-mode-vi PageDown send-keys -X page-down
bind -T copy-mode-vi PageUp send-keys -X page-up
# When scrolling with mouse wheel, reduce number of scrolled rows per tick to "2" (default is 5)
bind -T copy-mode-vi WheelUpPane select-pane \; send-keys -X -N 2 scroll-up
bind -T copy-mode-vi WheelDownPane select-pane \; send-keys -X -N 2 scroll-down
# wrap default shell in reattach-to-user-namespace if available
# there is some hack with `exec & reattach`, credits to "https://github.com/gpakosz/.tmux"
# don't really understand how it works, but at least window are not renamed to "reattach-to-user-namespace"
if -b "command -v reattach-to-user-namespace > /dev/null 2>&1" \
"run 'tmux set -g default-command \"exec $(tmux show -gv default-shell) 2>/dev/null & reattach-to-user-namespace -l $(tmux show -gv default-shell)\"'"
yank="~/.tmux/yank.sh"
# Copy selected text
bind -T copy-mode-vi Enter send-keys -X copy-pipe-and-cancel "$yank"
bind -T copy-mode-vi y send-keys -X copy-pipe-and-cancel "$yank"
bind -T copy-mode-vi Y send-keys -X copy-line \;\
run "tmux save-buffer - | $yank"
bind-key -T copy-mode-vi D send-keys -X copy-end-of-line \;\
run "tmux save-buffer - | $yank"
bind -T copy-mode-vi C-j send-keys -X copy-pipe-and-cancel "$yank"
bind-key -T copy-mode-vi A send-keys -X append-selection-and-cancel \;\
run "tmux save-buffer - | $yank"
# Copy selection on drag end event, but do not cancel copy mode and do not clear selection
# clear select on subsequence mouse click
bind -T copy-mode-vi MouseDragEnd1Pane \
send-keys -X copy-pipe "$yank"
bind -T copy-mode-vi MouseDown1Pane select-pane \;\
send-keys -X clear-selection
# iTerm2 works with clipboard out of the box, set-clipboard already set to "external"
# tmux show-options -g -s set-clipboard
# set-clipboard on|external
# =====================================
# === Theme ===
# =====================================
# Feel free to NOT use this variables at all (remove, rename)
# this are named colors, just for convenience
color_orange="colour166" # 208, 166
color_purple="colour134" # 135, 134
color_green="colour076" # 070
color_blue="colour39"
color_yellow="colour220"
color_red="colour160"
color_black="colour232"
color_white="white" # 015
# This is a theme CONTRACT, you are required to define variables below
# Change values, but not remove/rename variables itself
color_dark="$color_black"
color_light="$color_white"
color_session_text="$color_blue"
color_status_text="colour245"
color_main="$color_orange"
color_secondary="$color_purple"
color_level_ok="$color_green"
color_level_warn="$color_yellow"
color_level_stress="$color_red"
color_window_off_indicator="colour088"
color_window_off_status_bg="colour238"
color_window_off_status_current_bg="colour254"
# =====================================
# === Appearence and status bar ===
# ======================================
set -g mode-style "fg=default,bg=$color_main"
# command line style
set -g message-style "fg=$color_main,bg=$color_dark"
# status line style
set -g status-style "fg=$color_status_text,bg=$color_dark"
# window segments in status line
set -g window-status-separator ""
separator_powerline_left=""
separator_powerline_right=""
# setw -g window-status-style "fg=$color_status_text,bg=$color_dark"
setw -g window-status-format " #I:#W "
setw -g window-status-current-style "fg=$color_light,bold,bg=$color_main"
setw -g window-status-current-format "#[fg=$color_dark,bg=$color_main]$separator_powerline_right#[default] #I:#W# #[fg=$color_main,bg=$color_dark]$separator_powerline_right#[default]"
# when window has monitoring notification
setw -g window-status-activity-style "fg=$color_main"
# outline for active pane
setw -g pane-active-border-style "fg=$color_main"
# general status bar settings
set -g status on
set -g status-interval 5
set -g status-position top
set -g status-justify left
set -g status-right-length 100
# define widgets we're going to use in status bar
# note, that this is not the complete list, some of them are loaded from plugins
wg_session="#[fg=$color_session_text] #S #[default]"
wg_battery="#{battery_status_fg} #{battery_icon} #{battery_percentage}"
wg_date="#[fg=$color_secondary]%h %d %H:%M#[default]"
wg_user_host="#[fg=$color_secondary]#(whoami)#[default]@#H"
wg_is_zoomed="#[fg=$color_dark,bg=$color_secondary]#{?window_zoomed_flag,[Z],}#[default]"
# TODO: highlighted for nested local session as well
wg_is_keys_off="#[fg=$color_light,bg=$color_window_off_indicator]#([ $(tmux show-option -qv key-table) = 'off' ] && echo 'OFF')#[default]"
set -g status-left "$wg_session"
set -g status-right "#{prefix_highlight} $wg_is_keys_off $wg_is_zoomed #{sysstat_cpu} | #{sysstat_mem} | #{sysstat_loadavg} | $wg_user_host | $wg_date $wg_battery #{online_status}"
# online and offline icon for tmux-online-status
set -g @online_icon "#[fg=$color_level_ok]●#[default]"
set -g @offline_icon "#[fg=$color_level_stress]●#[default]"
# Configure view templates for tmux-plugin-sysstat "MEM" and "CPU" widget
set -g @sysstat_mem_view_tmpl 'MEM:#[fg=#{mem.color}]#{mem.pused}#[default] #{mem.used}'
# Configure colors for tmux-plugin-sysstat "MEM" and "CPU" widget
set -g @sysstat_cpu_color_low "$color_level_ok"
set -g @sysstat_cpu_color_medium "$color_level_warn"
set -g @sysstat_cpu_color_stress "$color_level_stress"
set -g @sysstat_mem_color_low "$color_level_ok"
set -g @sysstat_mem_color_medium "$color_level_warn"
set -g @sysstat_mem_color_stress "$color_level_stress"
set -g @sysstat_swap_color_low "$color_level_ok"
set -g @sysstat_swap_color_medium "$color_level_warn"
set -g @sysstat_swap_color_stress "$color_level_stress"
# Configure tmux-battery widget colors
set -g @batt_color_full_charge "#[fg=$color_level_ok]"
set -g @batt_color_high_charge "#[fg=$color_level_ok]"
set -g @batt_color_medium_charge "#[fg=$color_level_warn]"
set -g @batt_color_low_charge "#[fg=$color_level_stress]"
# Configure tmux-prefix-highlight colors
set -g @prefix_highlight_output_prefix '['
set -g @prefix_highlight_output_suffix ']'
set -g @prefix_highlight_fg "$color_dark"
set -g @prefix_highlight_bg "$color_secondary"
set -g @prefix_highlight_show_copy_mode 'on'
set -g @prefix_highlight_copy_mode_attr "fg=$color_dark,bg=$color_secondary"
# =====================================
# === Renew environment ===
# =====================================
set -g update-environment \
"DISPLAY\
SSH_ASKPASS\
SSH_AUTH_SOCK\
SSH_AGENT_PID\
SSH_CONNECTION\
SSH_TTY\
WINDOWID\
XAUTHORITY"
bind '$' run "~/.tmux/renew_env.sh"
# ============================
# === Plugins ===
# ============================
set -g @plugin 'tmux-plugins/tpm'
set -g @plugin 'tmux-plugins/tmux-battery'
set -g @plugin 'tmux-plugins/tmux-prefix-highlight'
set -g @plugin 'tmux-plugins/tmux-online-status'
set -g @plugin 'tmux-plugins/tmux-sidebar'
set -g @plugin 'tmux-plugins/tmux-copycat'
set -g @plugin 'tmux-plugins/tmux-open'
set -g @plugin 'samoshkin/tmux-plugin-sysstat'
# Plugin properties
set -g @sidebar-tree 't'
set -g @sidebar-tree-focus 'T'
set -g @sidebar-tree-command 'tree -C'
set -g @open-S 'https://www.google.com/search?q='
# ==============================================
# === Nesting local and remote sessions ===
# ==============================================
# Session is considered to be remote when we ssh into host
if-shell 'test -n "$SSH_CLIENT"' \
'source-file ~/.tmux/tmux.remote.conf'
# We want to have single prefix key "C-a", usable both for local and remote session
# we don't want to "C-a" + "a" approach either
# Idea is to turn off all key bindings and prefix handling on local session,
# so that all keystrokes are passed to inner/remote session
# see: toggle on/off all keybindings · Issue #237 · tmux/tmux - https://github.com/tmux/tmux/issues/237
# Also, change some visual styles when window keys are off
bind -T root F12 \
set prefix None \;\
set key-table off \;\
set status-style "fg=$color_status_text,bg=$color_window_off_status_bg" \;\
set window-status-current-format "#[fg=$color_window_off_status_bg,bg=$color_window_off_status_current_bg]$separator_powerline_right#[default] #I:#W# #[fg=$color_window_off_status_current_bg,bg=$color_window_off_status_bg]$separator_powerline_right#[default]" \;\
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 \;\
bind -T off F12 \
set -u prefix \;\
set -u key-table \;\
set -u status-style \;\
set -u window-status-current-style \;\
set -u window-status-current-format \;\
refresh-client -S
# Run all plugins' scripts
run '~/.tmux/plugins/tpm/tpm'
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