tests/readlink.py

namespaces: add bookmarks to the names data structure

This marks the first use of abstracting our different types of named objects
(bookmarks, tags, branches, etc.) and upcoming patches will use this to
simplify logic.

#!/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)