tests/readlink.py

discovery: make revlogdag work on filtered repo

The revlogdag class is a core part of discovery. We need its initialisation to
exclude revision filtered out.

#!/usr/bin/env python

import errno, os, sys

for f in sys.argv[1:]:
    try:
        print f, '->', os.readlink(f)
    except OSError, err:
        if err.errno != errno.EINVAL:
            raise
        print f, 'not a symlink'

sys.exit(0)