how do your hotplugd(8) scripts look? mine is messy and needs cleaning.

[izzy Meyer]

Hello misc@

I have slowly been working on this now-sprawling hotplugd(8) attach
script but I'm not a fan of how messy and complex it has gotten. Any
tips to clean it up and make it more modular? I don't like the usbdevs
hack, it feels uncomfortable to me for some reason. How do your
hotplugd(8) scripts look?

/etc/hotplug $ bat -l sh -pp attach
#!/bin/ksh

DEVCLASS=$1
DEVICE=$2

[ "$DEVCLASS" -eq 0 ] || exit 0

case "$DEVICE" in
    ugen*)
        # printer for CUPS
        if usbdevs -v | grep -q '03f0:dd11'; then

            ugen=$(usbdevs -v | awk '
                /03f0:dd11/ { found=1 }
                found && /driver: ugen[0-9]+/ {
                    sub(/^[[:space:]]*driver: /, "")
                    print
                    exit
                }
            ')

            [ "$DEVICE" = "$ugen" ] || exit 0

            usbctl=$(usbdevs -v | awk -v dev="$ugen" '
                /^Controller \/dev\/usb[0-9]+:/ {
                    ctl=$2
                    sub(":", "", ctl)
                }
                $0 ~ ("driver: " dev "$") {
                    print ctl
                    exit
                }
            ')

            logger -t hotplug "Printer attached"

            if [ -n "$usbctl" ]; then
                chown _cups:_saned /dev/${ugen}.* "$usbctl"
                chmod 660 /dev/${ugen}.* "$usbctl"
            fi
        # usb midi keyboard setup for LMMS
        elif usbdevs -v | grep -q '28e9:0001'; then
            logger -t hotplug "USB Midi Keyboard Attached"
            
            ( midicat -q midi/0 -q midithru/0 ) &
        fi
        ;;
    uvideo*)
        # usb webcam setup for video calls
        logger -t hotplug "USB Webcam attached"

        chown nobody:nobody /dev/video*
        chmod 0777 /dev/video*
        ;;
esac

Thanks for any help.

-- 
iz (she/her)

> I say mundane things
> so the uninteresting
> just might get noticed.

izder456 (dot) neocities (dot) org