tests/readlink.py

changelog: handle decoding of NULs in extra more carefully (issue3156)

Escaped NULs adjacent to [0-7] could be decoded as octal. This hits
about 0.24% of changesets with transplant, which stores binary nodes.

#!/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)