Create udev rule file from avrdude.conf

avrdude2udev

#!/bin/bash

for candidate in /usr/local/Cellar/avrdude/*/etc/avrdude.conf /etc/avrdude.conf /usr/local/etc/avrdude.conf ;do
    if [[ -f $candidate ]] ;then
        AVRCONF=$candidate
    fi
done
[[ -f $AVRCONF ]] || exit

gawk '
    /^ +usbvid +=/ {
        match($3, /0x([[:xdigit:]]+);/, m)
        usbvid=m[1]
    }
    /^ +id +=/ {
        match($3, /"([[:alnum:]_-]+)"/, m)
        id=m[1]
    }
    /^ +usbpid +=/  && usbvid && id {
        match($3, /0x([[:xdigit:]]+);/, m)
        printf("#AVR: %s\nSUBSYSTEM==\"usb\", ATTRS{idVendor}==\"%s\", ATTRS{idProduct}==\"%s\", GROUP=\"dialout\"\n",
        id, usbvid, m[1])
    }
    /^programmer *$/ {
        usbvid = 0
        id = 0
    }
' $AVRCONF