tests/readlink.py

formatter: extract function that encode values to json string

This is the stub for tuple support, which will be used to encode ctx.date()
in the same manner as jsonchangeset printer.

#!/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)