Convert USB device list for flatpak USB device allow list

epsonscan2-parse.py

#!/bin/env python3
#
# Convert epsonscan2 rules.

import re

vendor_match = re.compile(r"^ATTR\{idVendor\}!=\"([\dabcdef]*)\"")
device_match = re.compile(r"^ATTRS\{idProduct\}==\"([\dabcdef]*)\"")
file = open('epsonscan2.rules', 'r')

vendor = 0
while True:
    line = file.readline()
    if not line:
        break
    line = line.strip()
    m = vendor_match.match(line)
    if m is not None:
        vendor = m.group(1)
        continue

    m = device_match.match(line)
    if m is not None:
        print("--usb=vnd:{}+dev:{}".format(vendor, m.group(1)))

gphoto2-parse.py

#!/bin/env python3
#
# Convert the output of libgphoto2 print-camera-list.

import subprocess
import re

device_match = re.compile(r"^([\dabcdef]*):([\dabcdef]*)")
file = subprocess.Popen(['./packaging/generic/print-camera-list', 'idlist'], stdout=subprocess.PIPE).stdout

vendor = 0
while True:
    line = file.readline()
    if not line:
        break
    line = line.decode('utf-8')
    m = device_match.match(line)
    if m is not None:
        print("--usb=vnd:{}+dev:{}".format(m.group(1), m.group(2)))

libsane-parse.py

#!/bin/env python3
#
# Convert libsane udev rules.

import re

device_match = re.compile(r"ATTR\{idVendor\}==\"([\dabcdef]*)\",[\s]*ATTR\{idProduct\}==\"([\dabcdef]*)\"")
file = open('libsane.rules', 'r')

vendor = 0
while True:
    line = file.readline()
    if not line:
        break

    m = device_match.match(line)
    if m is not None:
        print("--usb=vnd:{}+dev:{}".format(m.group(1), m.group(2)))

utsushi-parse.py

#!/bin/env python3
#
# Convert utsushi device list (SANE .desc).

import subprocess
import re

device_match = re.compile(r"^:usbid[\s]+\"0x([\dabcdef]*)\"[\s]+\"0x([\dabcdef]*)\"")
file = open('sane/utsushi.desc', 'r')

vendor = 0
while True:
    line = file.readline()
    if not line:
        break
    m = device_match.match(line)
    if m is not None:
        print("--usb=vnd:{}+dev:{}".format(m.group(1), m.group(2)))