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.tmux.conf
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.tmux.conf
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# ~/.tmux.conf
# Copyright (C) 2021 Maciej Delmanowski <[email protected]>
# SPDX-License-Identifier: GPL-3.0-only
# -- Environment --------------------------------------------------------{{{1
# Copy specified variables from the environment when a new tmux session is
# created or existing session is attached
set-option -g update-environment \
"DBUS_SESSION_BUS_ADDRESS \
DESKTOP_SESSION \
DISPLAY \
GNOME_KEYRING_CONTROL \
GNOME_KEYRING_PID \
GPG_AGENT_INFO \
ORIGCOLORTERM \
ORIGTERM \
SESSION_MANAGER \
SSH_AGENT_PID \
SSH_AUTH_SOCK \
SSH_CONNECTION \
WINDOWID \
XAUTHORITY \
XDG_SESSION_COOKIE \
XDG_SESSION_PATH"
# Set tmux version in the environment to be used by the version-specific
# commands
# Source: https://stackoverflow.com/questions/35016458/
run-shell 'tmux setenv -g TMUX_VERSION $(tmux -V | \
sed -En "s/^tmux ([0-9]+(.[0-9]+)?).*/\1/p")'
# -- Keybindings --------------------------------------------------------{{{1
# Send prefix character into the client when pressed twice
bind-key ` send-prefix
bind-key C-b send-prefix
# Enable and disable custom prefix in case of paste issues
bind-key F7 set-option -g prefix C-b
bind-key F8 set-option -g prefix `
# <prefix> \ or v: split window vertically
bind-key \ split-window -h
bind-key v split-window -h
# <prefix> - or b: split window horizontally
bind-key - split-window -v
bind-key b split-window -v
# <prefix> i or o: select prev/next pane
bind-key i select-pane -t :.-
bind-key o select-pane -t :.+
# <prefix> vi motions: switch panes
bind-key h select-pane -L
bind-key j select-pane -D
bind-key k select-pane -U
bind-key l select-pane -R
# <prefix> <Meta> + vi motions: resize panes
bind-key -r -T prefix M-h resize-pane -L 8
bind-key -r -T prefix M-j resize-pane -D 4
bind-key -r -T prefix M-k resize-pane -U 4
bind-key -r -T prefix M-l resize-pane -R 8
# <prefix> <Meta> + <Shift> + vi motions: resize panes more
bind-key -r -T prefix M-H resize-pane -L 32
bind-key -r -T prefix M-J resize-pane -D 16
bind-key -r -T prefix M-K resize-pane -U 16
bind-key -r -T prefix M-L resize-pane -R 32
# <Meta> + vi motions: switch panes
bind-key -n M-h select-pane -L
bind-key -n M-j select-pane -D
bind-key -n M-k select-pane -U
bind-key -n M-l select-pane -R
# <Meta> + <Shift> + vi motions: move panes spatially
bind-key -n M-H select-pane -L \; swap-pane -ds '!'
bind-key -n M-J select-pane -D \; swap-pane -ds '!'
bind-key -n M-K select-pane -U \; swap-pane -ds '!'
bind-key -n M-L select-pane -R \; swap-pane -ds '!'
# <Meta> + Left/Right: switch to left/right window
# (doesn't work on console)
bind-key -n M-Left previous-window
bind-key -n M-Right next-window
# <Meta> + , or .: switch to left/right window
# (doesn't work on console)
bind-key -n M-, previous-window
bind-key -n M-. next-window
# <Meta> + < or >: move current window left or right
# (doesn't work on console)
bind-key -n M-< swap-window -t -1
bind-key -n M-> swap-window -t +1
# <Meta> + /: enter copy or search mode
bind-key -n M-/ copy-mode
# <prefix> /: switch to the previous window
bind-key / last-window
# <Meta> + f: switch fullscreen mode of the current pane
bind-key -n M-f resize-pane -Z
# <prefix> r: reload tmux configuration file
bind-key r source-file ~/.tmux.conf
# https://zserge.com/posts/tmux/
# Linux system clipboard
bind -T copy-mode-vi Enter send-keys -X copy-pipe-and-cancel "xclip -in -selection clipboard"
bind-key -T copy-mode-vi MouseDragEnd1Pane send -X copy-pipe-and-cancel "xclip -in -selection clipboard"
# -- Options ------------------------------------------------------------{{{1
# Enable mouse mode on older tmux versions
if-shell -b '[ "$(echo "$TMUX_VERSION < 2.1" | bc)" = 1 ]' " \
set -g mouse-select-pane on; set -g mode-mouse on; \
set -g mouse-resize-pane on; set -g mouse-select-window on"
# In version 2.1 "mouse" replaced the previous 4 mouse options
if-shell -b '[ "$(echo "$TMUX_VERSION >= 2.1" | bc)" = 1 ]' \
"set -g mouse on"
# UTF8 is autodetected in 2.2 onwards, but errors if explicitly set
if-shell -b '[ "$(echo "$TMUX_VERSION < 2.2" | bc)" = 1 ]' \
"set -g utf8 on; set -g status-utf8 on; set -g mouse-utf8 on"
# Set the default tmux prefix character
set-option -g prefix `
# Use vi keyboard shortcuts by default
set-window-option -g mode-keys vi
# Set the start index of tmux windows, keeping it at 1 makes switching using
# M-<number> easier
set-option -g base-index 1
# Set the start of the pane index, to make it similar to the window index
set-option -g pane-base-index 1
# Renumber all windows when a window is closed
set-option -g renumber-windows on
# Don't wait after <Escape> is pressed to check if a meta-key is pressed
set-option -s escape-time 0
# Rename windows automatically if a custom name has not been set. The name will
# based on the current process name.
set-window-option -g automatic-rename on
set-window-option -g automatic-rename-format '#{pane_current_command}'
# Allow programs to rename windows via ANSI escape sequences
set-window-option -g allow-rename on
# Increase the scrollback size
set-option -g history-limit 65536
# Define the value of the $TERM environment variable
set-option -g default-terminal "screen-256color"
# -- Window/pane activity monitoring ------------------------------------{{{1
# Monitor windows and panes for activity
set-window-option -g monitor-activity on
# Monitor window and panes for bells (^G) sent by applications
if-shell -b '[ "$(echo "$TMUX_VERSION >= 2.6" | bc)" = 1 ]' \
"set-window-option -g monitor-bell on"
# Define which windows should create activity events
if-shell -b '[ "$(echo "$TMUX_VERSION >= 2.6" | bc)" = 1 ]' \
"set-option -g activity-action other"
# Define which windows should create bell events
set-option -g bell-action any
# Define custom window title style on activity
set-window-option -g window-status-activity-style fg='red,underscore'
# Define custom window title style on bell
set-window-option -g window-status-bell-style fg='red,underscore'
# -- X window title -----------------------------------------------------{{{1
# Try setting the X window title using ANSI sequences
set-option -g set-titles on
# The string that defines the X window title, used by default
set-option -g set-titles-string "`#S -- tmux"
# If a SSH session is detectd, use a more desciptive string as X window title
if-shell '[ -n "$SSH_CONNECTION" ]' 'set-option -g set-titles-string "ssh!#(whoami)@#H`#S -- tmux"'
# -- Messages, command line ---------------------------------------------{{{1
# Configure the style of tmux messages and the command prompt
set-option -g message-style fg='yellow,bold',bg='blue,bold'
# Set message display time in miliseconds
set-option -g display-time 2000
# -- Left status bar ----------------------------------------------------{{{1
# Set the maximum length of the left status bar
set-option -g status-left-length 50
# The default status, used in X window session
# `<session-name>
set-option -g status-left '#[fg=black,bold]--#[default] #[fg=yellow,bold]#[bg=blue,bold]#{?client_prefix,`#S#[default],#[fg=black,bold]#[bg=default]`#[fg=yellow,nobold]#S#[default]} #[fg=black,bold]--#[default] '
# Change the status on Linux console to show more relevant details
# <user>@<host>:<tty>`<session-name>
if-shell '[ -z "$DISPLAY" -a -z "$SSH_CONNECTION" ]' \
'set-option -g status-left "#[fg=black,bold]--#[default] #[fg=green]#(whoami)#[fg=black,bold]@#[default]#[fg=cyan]#H#[fg=black,bold]:#[fg=magenta,nobold]#{s|/dev/||:client_tty}#[fg=yellow,bold]#[bg=blue,bold]#{?client_prefix,`#S#[default],#[fg=black,bold]#[bg=default]`#[fg=yellow,nobold]#S#[default]} #[fg=black,bold]--#[default] "'
# Change the status when SSH connection is detected to show more relevant
# details
# ssh!<user>@<host>`<session-name>
if-shell '[ -n "$SSH_CONNECTION" ]' \
'set -g status-left "#[fg=black,bold]--#[default] #[fg=yellow,nobold]ssh#[fg=black,bold]!#[fg=green,nobold]#(whoami)#[fg=black,bold]@#[default]#[fg=cyan,bold]#H#[fg=yellow,bold]#[bg=blue,bold]#{?client_prefix,`#S#[default],#[fg=black,bold]#[bg=default]`#[fg=yellow,nobold]#S#[default]} #[fg=black,bold]--#[default] "'
# -- Middle status bar (window list) ------------------------------------{{{1
# Align the window list to the left
set-option -g status-justify left
# Configure the style of the middle status bar
set-option -g status-style fg='#999999',bg=default
# Set the style and format of the inactive windows
set -g window-status-format ' #[fg=magenta]#I#[fg=black,bold]:#[fg=white,nobold,dim]#W#[fg=green,nobold,nodim]#F '
set -g window-status-style fg='#777777',bg='default'
# Set the style and format of the currently active window
set -g window-status-current-format '#[fg=cyan,bold]╰╴#[fg=magenta,bold]#I#[fg=black,bold]:#[fg=white]#W#[fg=green,bold]#F#[fg=cyan,bold]╶╯'
set -g window-status-current-style fg='white,bold',bg='default'
# Use non-Unicode characters for the active window on Linux console
if-shell '[ -z "$DISPLAY" -a -z "$SSH_CONNECTION" ]' \
'set -g window-status-current-format "#[fg=cyan,bold]└─ #[fg=magenta,bold]#I#[fg=black,bold]:#[fg=white]#W#[fg=green,bold]#F#[fg=cyan,bold] ─┘"'
# -- Right status bar ---------------------------------------------------{{{1
# Display simple status bar in X window session
set -g status-right ' #[fg=black,bold]--'
# In Linux console or SSH session, show current load average and time
if-shell '[ -z "$DISPLAY" -o -n "$SSH_CONNECTION" ]' \
'set -g status-right " #[fg=black,bold]-- #[default]#[fg=yellow]#(cat /proc/loadavg | cut -d \" \" -f 1,2,3) #[fg=black,bold]-- #[fg=cyan,bright]%H:%M #[fg=black,bold]--"'
# -- Pane style ---------------------------------------------------------{{{1
# The style of the inactive pane border
set -g pane-border-style fg='#444444',bg=default
# The style of the active pane border
set -g pane-active-border-style fg='#888888',bg=default
# The style of the inactive pane border on Linux console
if-shell '[ -z "$DISPLAY" -a -z "$SSH_CONNECTION" ]' \
'set-option -g pane-border-style fg="brightblack",bg=default'
# The style of the active pane border on Linux console
if-shell '[ -z "$DISPLAY" -a -z "$SSH_CONNECTION" ]' \
'set-option -g pane-active-border-style fg="white",bg=default'