2bspwm

#!/usr/bin/env dash
# neeasade
# depends on: jq, colort, wmutils opt/chwb2
# makes dual borders based on your bspwm colors

focusedTint=70
normalTint=20

# set border widths, if odd outer is 1px larger
borderWidth=`bspc config border_width`
inWidth=$(( $borderWidth/2 ))
outWidth=$(( ($borderWidth/2) + ($borderWidth%2) ))

# _chwb2 [Focused|Normal] [nodeId]
_chwb2()
{
    colorType=$1
    shift
    eval chwb2 -I \$inner$colorType -O \$outer$colorType -i $inWidth -o $outWidth $@ 2>/dev/null
}

# dec to hex
d2h() {
    while read in; do
        printf '0x%x\n' "$in"
    done
}

# define border colors based on bspwm border settings
outerFocused=`bspc config focused_border_color | tr -d \#`
colort -c "$outerFocused" && sign=+ || sign=-
innerFocused=`colort -l $sign$focusedTint "$outerFocused"`

outerNormal=`bspc config normal_border_color | tr -d \#`
colort -c "$outerNormal" && sign=+ || sign=-
innerNormal=`colort -l $sign$normalTint "$outerNormal"`

# apply normal to all nodes, active to focused node.
_chwb2 Normal `bspc query -N -n .\!focused`
_chwb2 Focused `bspc query -N -n`

# react to resizes and focus changes
bspc subscribe node_geometry node_focus | while read msg; do
    # everything not focused
    _chwb2 Normal `bspc query -N -n .\!focused`

    # any windows under focused node path
    _chwb2 Focused `bspc query -T -n | jq '.. | .?, .root?, .firstChild?, .secondChild? | select (.client != null) | .id' | d2h`
done