first-owner.py: benchmark time taken to locate an owner of a file

first-owner.py (text/x-python), 603 bytes, created by Zac Medico on 2014-11-27 21:36:21 UTC

#!/usr/bin/python

import os
import sys

import portage
from portage.util import writemsg, writemsg_stdout

def main(args):
	vardb = portage.db[portage.root]["vartree"].dbapi

	relative_paths = []
	for p in sys.argv[1:]:
		if not p.startswith(portage.root):
			writemsg("!!! Path does not start with EROOT: %s\n" %
				portage.root, noiselevel=-1)
			return 2
		relative_paths.append(p[len(portage.root)-1:])

	for db, relative_path in vardb._owners.iter_owners(relative_paths):
		writemsg_stdout("%s\n" % db.mycpv)
		return os.EX_OK

	return 1

if __name__ == "__main__":
	sys.exit(main(sys.argv[1:]))