i3_configuration/i3status/mytopbar.sh

#!/bin/sh

# i3 config in ~/.config/i3/config :
# bar {
#   status_command exec /home/you/.config/i3status/mybar.sh
# }

bg_bar_color="#282A36"

# Print a left caret separator
# @params {string} $1 text color, ex: "#FF0000"
# @params {string} $2 background color, ex: "#FF0000"
separator() {
  echo -n "{"
  echo -n "\"full_text\":\"\"," # CTRL+Ue0b2
  echo -n "\"separator\":false,"
  echo -n "\"separator_block_width\":0,"
  echo -n "\"border\":\"$bg_bar_color\","
  echo -n "\"border_left\":0,"
  echo -n "\"border_right\":0,"
  echo -n "\"border_top\":2,"
  echo -n "\"border_bottom\":2,"
  echo -n "\"color\":\"$1\","
  echo -n "\"background\":\"$2\""
  echo -n "}"
}

common() {
  echo -n "\"border\": \"$bg_bar_color\","
  echo -n "\"separator\":false,"
  echo -n "\"separator_block_width\":0,"
  echo -n "\"border_top\":2,"
  echo -n "\"border_bottom\":2,"
  echo -n "\"border_left\":0,"
  echo -n "\"border_right\":0"
}

root_text() {
  local bg="#000000"
  local text_color="#D48F06"
  separator $bg "#FFD180"
  echo -n ",{"
  echo -n "\"name\":\"id_root_text\","
  echo -n "\"color\":\"$text_color\","
  echo -n "\"full_text\":\"  $(echo -n 'Root:')\","
  echo -n "\"background\":\"$bg\","
  common
  echo -n "},"
}

root_usage() {
  local bg="#000000"
  local text_color="#00A300"
  separator $bg "#2E7D32"
  echo -n ",{"
  echo -n "\"name\":\"id_root_usage\","
  echo -n "\"color\":\"$text_color\","
  echo -n "\"full_text\":\"$(df --output=pcent / | grep -v Uti)\","
  echo -n "\"background\":\"$bg\","
  common
  echo -n "},"
}

home_text() {
  local bg="#000000"
  local text_color="#D48F06"
  separator $bg "#FFD180"
  echo -n ",{"
  echo -n "\"name\":\"id_home_text\","
  echo -n "\"color\":\"$text_color\","
  echo -n "\"full_text\":\" $(echo -n 'Home:')\","
  echo -n "\"background\":\"$bg\","
  common
  echo -n "},"
}

home_usage() {
  local bg="#000000"
  local text_color="#00A300"
  separator $bg "#2E7D32"
  echo -n ",{"
  echo -n "\"name\":\"id_home_usage\","
  echo -n "\"color\":\"$text_color\","
  echo -n "\"full_text\":\"$(df --output=pcent /home | grep -v Uti)\","
  echo -n "\"background\":\"$bg\","
  common
  echo -n "},"
}

src_usage() {
  local bg="#000000"
  local text_color="#00A300"
  separator $bg "#2E7D32"
  echo -n ",{"
  echo -n "\"name\":\"id_src_usage\","
  echo -n "\"color\":\"$text_color\","
  echo -n "\"full_text\":\"$(df --output=pcent /usr/src | grep -v Uti) \","
  echo -n "\"background\":\"$bg\","
  common
  echo -n "},"
}

src_text() {
  local bg="#000000"
  local text_color="#D48F06"
  separator $bg "#FFD180"
  echo -n ",{"
  echo -n "\"name\":\"id_src_text\","
  echo -n "\"color\":\"$text_color\","
  echo -n "\"full_text\":\" $(echo -n 'Src:')\","
  echo -n "\"background\":\"$bg\","
  common
  echo -n "},"
}

seclists_usage() {
  local bg="#000000"
  local text_color="#00A300"
  separator $bg "#2E7D32"
  echo -n ",{"
  echo -n "\"name\":\"id_seclists_usage\","
  echo -n "\"color\":\"$text_color\","
  echo -n "\"full_text\":\"$(df --output=pcent /usr/share/seclists | grep -v Uti)\","
  echo -n "\"background\":\"$bg\","
  common
  echo -n "},"
}

seclists_text() {
  local bg="#000000"
  local text_color="#D48F06"
  separator $bg "#FFD180"
  echo -n ",{"
  echo -n "\"name\":\"id_boot_text\","
  echo -n "\"color\":\"$text_color\","
  echo -n "\"full_text\":\" $(echo -n 'Sec:')\","
  echo -n "\"background\":\"$bg\","
  common
  echo -n "},"
}

boot_usage() {
  local bg="#000000"
  local text_color="#00A300"
  separator $bg "#2E7D32"
  echo -n ",{"
  echo -n "\"name\":\"id_boot_usage\","
  echo -n "\"color\":\"$text_color\","
  echo -n "\"full_text\":\"$(df --output=pcent /boot | grep -v Uti)\","
  echo -n "\"background\":\"$bg\","
  common
  echo -n "},"
}

boot_text() {
  local bg="#000000"
  local text_color="#D48F06"
  separator $bg "#FFD180"
  echo -n ",{"
  echo -n "\"name\":\"id_boot_text\","
  echo -n "\"color\":\"$text_color\","
  echo -n "\"full_text\":\" $(echo -n 'Boot:')\","
  echo -n "\"background\":\"$bg\","
  common
  echo -n "},"
}

memory_text() {
  local bg="#000000"
  local text_color="#D48F06"
  separator $bg "#FFD180"
  echo -n ",{"
  echo -n "\"name\":\"id_memory_text\","
  echo -n "\"color\":\"$text_color\","
  echo -n "\"full_text\":\" $(echo -n ' Mem: ')\","
  echo -n "\"background\":\"$bg\","
  common
  echo -n "},"
}

memory() {
  local bg="#000000"
  local text_color="#00A300"
  separator $bg "#FFD180"
  echo -n ",{"
  echo -n "\"color\":\"$text_color\","
  echo -n "\"name\":\"id_memory\","
  echo -n "\"full_text\":\"$(free | awk '/^Mem/ { printf("%.2f", $3/$2 * 100.0) }')%\","
  echo -n "\"background\":\"$bg\","
  common
  echo -n "},"
}

cpu_usage() {
  local text_color="#00A300"
  separator $bg "#FFD180"
  echo -n ",{"
  echo -n "\"color\":\"$text_color\","
  echo -n "\"name\":\"id_cpu_usage\","
  echo -n "\"full_text\":\"$(ps -A -o pcpu | tail -n+2 | paste -sd+ | bc)% \","
  echo -n "\"background\":\"#000000\","
  common
  echo -n "},"
}

cpu_text() {
  local bg="#000000"
  local text_color="#D48F06"
  separator $bg "#FFD180"
  echo -n ",{"
  echo -n "\"name\":\"id_cpu_text\","
  echo -n "\"color\":\"$text_color\","
  echo -n "\"full_text\":\" $(echo -n ' CPU: ')\","
  echo -n "\"background\":\"$bg\","
  common
  echo -n "},"
}

mydate() {
  local bg="#000000"
  separator $bg "#FFD190"
  echo -n ",{"
  echo -n "\"name\":\"id_time\","
  echo -n "\"full_text\":\"  $(date "+%a %d/%m %H:%M") \","
  echo -n "\"color\":\"#D48F06\","
  echo -n "\"background\":\"$bg\","
  common
  echo -n "},"
}

bat_text() {
  local bg="#000000"
  local text_color="#D48F06"
    charging=$(cat /sys/class/power_supply/BAT0/uevent | grep "POWER_SUPPLY_STATUS" | cut -d'=' -f2) # POWER_SUPPLY_STATUS=Discharging|Charging
    icon=""
    if [ "$charging" == "Charging" ]; then
      icon=""
    fi
  separator $bg "#FFD180"
  echo -n ",{"
  echo -n "\"name\":\"id_bat_text\","
  echo -n "\"color\":\"$text_color\","
  echo -n "\"full_text\":\"${icon}$(echo -n ' Bat: ')\","
  echo -n "\"background\":\"$bg\","
  common
  echo -n "},"
}

battery0() {
  if [ -f /sys/class/power_supply/BAT0/uevent ]; then
    local bg="#000000"
    separator $bg "#E0E0E0"
    bg_separator_previous=$bg
    prct=$(cat /sys/class/power_supply/BAT0/uevent | grep "POWER_SUPPLY_CAPACITY=" | cut -d'=' -f2)
    echo -n ",{"
    echo -n "\"name\":\"battery0\","
    echo -n "\"full_text\":\"${prct}% \","
    echo -n "\"color\":\"#00A300\","
    echo -n "\"background\":\"$bg\","
    common
    echo -n "},"
  else
    bg_separator_previous="#E0E0E0"
  fi
}

volume() {
  local bg="#000000"
  local text_color="#D48F06"
  separator $bg $bg_separator_previous  
  vol=$(pulsemixer --get-volume)
  echo -n ",{"
  echo -n "\"name\":\"id_volume\","
  echo -n "\"color\":\"$text_color\","
  if [ $vol -le 0 ]; then
    echo -n "\"full_text\":\"  ${vol}% \","
  else
    echo -n "\"full_text\":\"  ${vol}% \","
  fi
  echo -n "\"background\":\"$bg\","
  common
  echo -n "},"
}

systemupdate() {
  local nb=$(checkupdates | wc -l)
  if (( $nb > 0)); then
    echo -n ",{"
    echo -n "\"name\":\"id_systemupdate\","
    echo -n "\"full_text\":\"  ${nb}\""
    echo -n "}"
  fi
}

Artist_text() {
  local bg="#000000"
  local text_color="#D48F06"
  separator $bg "#FFD180"
  echo -n ",{"
  echo -n "\"name\":\"id_artist_text\","
  echo -n "\"color\":\"$text_color\","
  echo -n "\"full_text\":\"🎧 $(ncmpcpp --current-song "{%a} ")\","
  echo -n "\"background\":\"$bg\","
  common
  echo -n "},"
}

Music_text() {
  local bg="#000000"
  local text_color="#00A300"
  separator $bg "#FFD180"
  echo -n ",{"
  echo -n "\"name\":\"id_music_text\","
  echo -n "\"color\":\"$text_color\","
  echo -n "\"full_text\":\"$(ncmpcpp --current-song "{%t} ")\","
  echo -n "\"background\":\"$bg\","
  common
  echo -n "},"
}

Backlight_text() {
  local bg="#000000"
  local text_color="#D48F06"
  separator $bg "#FFD180"
  echo -n ",{"
  echo -n "\"name\":\"id_backlight_text\","
  echo -n "\"color\":\"$text_color\","
  echo -n "\"full_text\":\"🞻 $( xbacklight -get)%\","
  echo -n "\"background\":\"$bg\","
  common
  echo -n "},"
  separator $bg_bar_color $bg
}

Album_text() {
  local bg="#000000"
  local text_color="#D48F06"
  separator $bg "#FFD180"
  echo -n ",{"
  echo -n "\"name\":\"id_album_text\","
  echo -n "\"color\":\"$text_color\","
  echo -n "\"full_text\":\"$(ncmpcpp --current-song " {%b} ")\","
  echo -n "\"background\":\"$bg\","
  common
  echo -n "},"
}

cutator() {
  local bg="#000000"
  local text_color="#919191"
  separator $bg "#FFD180"
  echo -n ",{"
  echo -n "\"name\":\"id_cutator_text\","
  echo -n "\"full_text\":\"$(echo -n '☢')\","
  echo -n "\"background\":\"$bg\","
  common
  echo -n "},"
}
logout() {
  echo -n ",{"
  echo -n "\"name\":\"id_logout\","
  echo -n "\"full_text\":\"  \""
  echo -n "}"
}

# https://github.com/i3/i3/blob/next/contrib/trivial-bar-script.sh
echo '{ "version": 1, "click_events":true }'     # Send the header so that i3bar knows we want to use JSON:
echo '['                    # Begin the endless array.
echo '[]'                   # We send an empty first array of blocks to make the loop simpler:

# Now send blocks with information forever:
(while :;
do
	echo -n ",["
  Artist_text
  Music_text
  Album_text
  cutator
  root_text
  root_usage
  home_text
  home_usage
  boot_text
  boot_usage
  src_text
  src_usage
#  seclists_text
#  seclists_usage
  cutator
  memory_text
  memory
  cpu_text
  cpu_usage
  cutator
  mydate
  bat_text
  battery0
  volume
  Backlight_text
  logout
  echo "]"
	sleep 1
done) &

# click events
while read line;
do
  # echo $line > /home/you/gitclones/github/i3/tmp.txt
  # {"name":"id_vpn","button":1,"modifiers":["Mod2"],"x":2982,"y":9,"relative_x":67,"relative_y":9,"width":95,"height":22}

  # CPU
  if [[ $line == *"name"*"id_cpu_usage"* ]]; then
    wezterm --config-file /home/pierre/.config/i3status/wezterm_htop.lua -e --class term_date htop &

  # TIME
  elif [[ $line == *"name"*"id_time"* ]]; then
    wezterm --config-file /home/pierre/.config/i3status/wezterm_date.lua -e --position screen:1582,21 --class term_date /home/pierre/.config/i3status/click_time.sh &

  # VOLUME
  elif [[ $line == *"name"*"id_volume"* ]]; then
    wezterm -e --class term_date -e pulsemixer &

  elif [[ $line == *"name"*"artist"* ]]; then
    wezterm -e --class term_date -e ncmpcpp &
    #
  # LOGOUT
  elif [[ $line == *"name"*"id_logout"* ]]; then
    i3-nagbar -t warning -m 'Log out ?' -b 'yes' 'i3-msg exit' > /dev/null &
  fi  
done