#!/usr/bin/env python3
# Yes, this is a Bad YAML Parser, but at this stage we are not in the
# venv and do not know what modules the user has available, so for
# maximum compatibility, we are just assuming a plain Python distribution.
import argparse
import re
import sys
import os

parser = argparse.ArgumentParser()
group = parser.add_mutually_exclusive_group(required=True)
group.add_argument('--sources',action='store_true')
group.add_argument('--family',action='store_true')
args = parser.parse_args()

with open(os.path.join("sources", "config.yaml")) as config:
	data = config.read()

if args.family:
	m = re.search(r"(?m)^familyName: (.*)", data)
	if m:
		print(m[1])
		sys.exit(0)
	else:
		print("Could not determine family name from config file!")
		sys.exit(1)

toggle = False
sources = []
for line in data.splitlines():
	if re.match("^sources:", line):
		toggle = True
		continue
	if toggle:
		m = re.match(r"^\s+-\s*(.*)", line)
		if m:
			sources.append("sources/"+m[1])
		else:
			toggle = False
if sources:
	print(" ".join(sources))
	sys.exit(0)
else:
	print("Could not determine sources from config file!")
	sys.exit(1)
