vincentbernat.i3wm-configuration/bin/xsettingsd-setup

#!/bin/sh

# Build xsettingsd.local
cp  ~/.config/awesome/xsettingsd ~/.config/awesome/xsettingsd.local
if [ -f ~/.config/awesome/xsettingsd.dpi ]; then
    dpi=$(cat ~/.config/awesome/xsettingsd.dpi)
else
    dpi=$(xdpyinfo | awk  '$1 ~ /resolution:/ { print $2 }' | sed 's/x.*//')
fi
echo Xft/DPI $(( $dpi * 1024 )) >> ~/.config/awesome/xsettingsd.local

# Signal xsettingsd
pid=$(xprop -name xsettingsd _NET_WM_PID 2> /dev/null | awk '{print $NF}')
if [ x"$pid" = x ]; then
    xsettingsd -c ~/.config/awesome/xsettingsd.local &
else
    kill -HUP $pid
fi

# Also use xrdb for very old stuff (you know, LibreOffice)
echo Xft.dpi: $dpi | xrdb -merge