tests/readlink.py

rebase: rework extrafn handling to support multiple extrafns

This makes it possible to pass keepbranches and extrafn to rebase at
the same time, although nobody uses that functionality presently. This
is a precursor to keeping graft metadata.

#!/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)