sandbar

dwm-like bar for [river](https://github.com/riverwm/river). ![screenshot](/screenshot.png "screenshot")

Dependencies

libwayland-client
libwayland-cursor
pixman
fcft

Installation

From Source

git clone https://github.com/kolunmi/sandbar
cd sandbar
make install

Arch Linux

The package is available on the AUR as sandbar-git. Manually install it with makepkg -sirc or use your favorite AUR helper:

paru -S sandbar-git

NixOS

The package is available on NixOS as sandbar. Install it via home-manager, configuration.nix or install it via nix-env:

nix-env -iA nixos.sandbar #if your main channel is nixos

Commands

Commands are read through stdin in the following format:

output command data

where `output` is a wl_output name, "all" to affect all outputs, or "selected" for focused outputs, and `command` and `data` are any one of the following:	Command	Data
`status`	text
`show`
`hide`
`toggle-visibility`
`set-top`
`set-bottom`
`toggle-location`

For example, DP-3 status hello world would set the status text to "hello world" on output DP-3, if it exists. all set-top would ensure all bars are drawn at the top of their respective monitors.

Status text may contain in-line color commands in the following format: ^fg/bg(HEXCOLOR). A color command with no argument reverts to the default value. ^^ represents a single ^ character. Color commands can be disabled with -no-status-commands.

Example Setup

The following setup shows how to spawn both sandbar and a custom status script that communicates via FIFO with commands running at different intervals.

First, create the file $HOME/.config/river/bar:

#!/usr/bin/env sh

FIFO="$XDG_RUNTIME_DIR/sandbar"
[ -e "$FIFO" ] && rm -f "$FIFO"
mkfifo "$FIFO"

while cat "$FIFO"; do :; done | sandbar \
    -font "Iosevka Nerd Font:Pixelsize" \
    -active-fg-color "#000000" \
    -active-bg-color "#98971a" \
    -inactive-fg-color "#ebdbb2" \
    -inactive-bg-color "#000000" \
    -urgent-fg-color "#000000" \
    -urgent-bg-color "#cc241d" \
    -title-fg-color "#000000" \
    -title-bg-color "#98971a"

Then, create the file $HOME/.config/river/status:

#!/bin/env sh

cpu() {
    cpu="$(grep -o "^[^ ]*" /proc/loadavg)"
}

memory() {
    memory="$(free -h | sed -n "2s/\([^ ]* *\)\{2\}\([^ ]*\).*/\2/p")"
}

disk() {
    disk="$(df -h | awk 'NR==2{print $4}')"
}

datetime() {
    datetime="$(date "+%a %d %b %I:%M %P")"
}

bat() {
    read -r bat_status </sys/class/power_supply/BAT0/status
    read -r bat_capacity </sys/class/power_supply/BAT0/capacity
    bat="$bat_status $bat_capacity%"
}

vol() {
    vol="$([ "$(pamixer --get-mute)" = "false" ] && printf "%s%%" "$(pamixer --get-volume)" || printf '-')"
}

display() {
    echo "all status [$memory $cpu $disk] [$bat] [$vol] [$datetime]" >"$FIFO"
}

printf "%s" "$$" > "$XDG_RUNTIME_DIR/status_pid"
FIFO="$XDG_RUNTIME_DIR/sandbar"
[ -e "$FIFO" ] || mkfifo "$FIFO"
sec=0

while true; do
    sleep 1 &
    wait && {
        [ $((sec % 15)) -eq 0 ] && memory
        [ $((sec % 15)) -eq 0 ] && cpu
        [ $((sec % 15)) -eq 0 ] && disk
        [ $((sec % 60)) -eq 0 ] && bat
        [ $((sec % 5)) -eq 0 ] && vol
        [ $((sec % 5)) -eq 0 ] && datetime

        [ $((sec % 5)) -eq 0 ] && display

        sec=$((sec + 1))
    }
done

Finally, add these lines to $HOME/.config/river/init:

riverctl spawn "$HOME/.config/river/status"
riverctl spawn "$HOME/.config/river/bar"

kolunmi / sandbar

readme