Kitty

A cross-platform, fast, feature-rich, GPU based terminal, with support for hyperlinks, image viewer.

References

• Kitty
• Kitty (github)

Install / config

• See also Kitty FAQ

• Setup terminfo

# SSH locally so that kitty will install terminfo file automatically (in ~/.terminfo/kitty.terminfo)
kitty +kitten ssh localhost

# Can also copy the file manually:
# See https://sw.kovidgoyal.net/kitty/kittens/ssh/#manual-terminfo-copy
infocmp -a xterm-kitty | ssh myserver tic -x -o \~/.terminfo /dev/stdin

• Add xterm-kitty to ~/.dircolors.cfg

 TERM xterm-color
 TERM xterm-debian
+TERM xterm-kitty
 # Below are the color init strings for the basic file types. A color init
 # string consists of one or more of the following numeric codes:

• Configure font thickness in white themes, .config/kitty/kitty.conf:

# See kitty.conf help text or https://sw.kovidgoyal.net/kitty/conf/#opt-kitty.text_composition_strategy on how to setup this variable
# See https://github.com/kovidgoyal/kitty/issues/6197
# See background tech details at: https://github.com/kovidgoyal/kitty/pull/5969
# This setting gives pixel identical rendering as gnome-terminator with light themes
text_composition_strategy 1.6 0

• Add font resize shortcut:

# See https://sw.kovidgoyal.net/kitty/conf/#conf-kitty-shortcuts-layout
# Resize fonts in current OS window
map ctrl+shift+equal       change_font_size current +1.0
map ctrl+shift+plus        change_font_size current +1.0
map ctrl+shift+kp_add      change_font_size current +1.0
map ctrl+minus             change_font_size current -1.0
map ctrl+shift+kp_subtract change_font_size current -1.0
# map ctrl+shift+backspace   change_font_size current 0
map ctrl+0                 change_font_size current 0

• Add window splitting / zooming:

enabled_layouts splits:split_axis=horizontal, stack

# Create a new window splitting the space used by the existing one so that
# the two windows are placed one above the other
map ctrl+shift+o launch --location=hsplit --cwd=current

# Create a new window splitting the space used by the existing one so that
# the two windows are placed side by side
map ctrl+shift+e launch --location=vsplit --cwd=current

# Create a new window splitting the space used by the existing one so that
# the two windows are placed side by side if the existing window is wide or
# one above the other if the existing window is tall.
# map f4 launch --location=split

# Rotate the current split, changing its split axis from vertical to
# horizontal or vice versa
# map f7 layout_action rotate

# Move the active window in the indicated direction
# map shift+up move_window up
# map shift+left move_window left
# map shift+right move_window right
# map shift+down move_window down

# Move the active window to the indicated screen edge
# map ctrl+shift+up layout_action move_to_screen_edge top
# map ctrl+shift+left layout_action move_to_screen_edge left
# map ctrl+shift+right layout_action move_to_screen_edge right
# map ctrl+shift+down layout_action move_to_screen_edge bottom

# Switch focus to the neighboring window in the indicated direction
map ctrl+shift+h neighboring_window left
map ctrl+shift+l neighboring_window right
map ctrl+shift+k neighboring_window up
map ctrl+shift+j neighboring_window down

# Note: use ctrl-shift-r   to resize the current window

# Zoom on current window
map ctrl+shift+z toggle_layout stack

• Setup midnight commander, add to ~/.config/mc/ini:

[terminal:xterm-kitty]
up=\ek
down=\ej
left=\eh
right=\el

Tips

Increase font size

Increasing the font size dynamically seems to require to enable remote control

kitty -c NONE -o font_size=12 -o allow_remote_control=yes # Or through config
kitty @ set-font-size -- +2

Example startup script

An example script to create a 4-window kitty, launching dedicating command in some windows:

#! /bin/bash
#
# Usage:  kitty ./layout.sh

function kitty-resize-window()
{
  WINDOW=$1
  AXIS=$2
  SIZE=$3
  case $AXIS in
    vertical)
      QUERY=lines   ;;
    horizontal)
      QUERY=columns ;;
  esac
  while true; do
    LINES=$(kitty @ ls | jq ".[].tabs[].windows[] | select( .title == \"$WINDOW\" ) | .$QUERY")
    DELTA=$((SIZE - LINES))
    [ $DELTA -ge -1 -a $DELTA -le 1 ] && break
    kitty @ resize-window --match title:$WINDOW --increment $DELTA --axis $AXIS
  done
}

kitty @ launch --type tab --title "editor" --tab-title "first"
kitty @ launch --match title:first --location vsplit --title "python" ./dev.sh
kitty @ launch --match title:first --location hsplit --title "remote_bash"
kitty @ focus-window --match title:editor
kitty @ launch --match title:first --location hsplit --title "local_bash"
kitty-resize-window local_bash vertical   10
kitty-resize-window python     horizontal 60
kitty @ focus-window --match title:editor
kitty @ send-text --match title:editor "vim myscript.py\n"