Bug 705976 - Add JSON/YAML version of 'Packages' index file for easier machine parsing

packages-to-json.py

#!/usr/bin/env python3

import argparse
import json
import sys

from portage.getbinpkg import PackageIndex


def main():
	parser = argparse.ArgumentParser(description='convert ${PKGDIR}/Packages file to JSON')
	parser.add_argument('input_file', default='-', nargs='?', help='default is stdin')
	args = parser.parse_args()

	pkgindex = PackageIndex()
	packages_json = {}
	if args.input_file == '-':
		pkgindex.read(sys.stdin)
	else:
		with open(args.input_file, 'rt', encoding='utf8') as input_file:
			pkgindex.read(input_file)
	packages_json['header'] = pkgindex.header
	packages_json['packages'] = pkgindex.packages
	json.dump(packages_json, sys.stdout)


if __name__ == '__main__':
	main()