tests/readlink.py

bookmarks: explicitly track identical bookmarks

bookmarks.compare() previously lumped identical bookmarks in the
"invalid" bucket. This patch adds a "same" bucket.

An 8-tuple for holding this state is pretty gnarly. The return value
should probably be converted into a class to increase readability. But
that is beyond the scope of a patch intended to be a late arrival to
stable.

#!/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)