tests/readlink.py

bundle2caps: advertise the available versions for changegroup packer

This will let the bundle2 client and server detect what packer they should be using.

This detection part is not done. I expect it to be done with the addition of the
second packer (with generaldelta support).

#!/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)