#!/usr/bin/env python
#
# Copyright (c) 2015, Arista Networks, Inc.
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# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
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#  - Redistributions of source code must retain the above copyright notice,
# this list of conditions and the following disclaimer.
#  - Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# pylint: disable=C0209

from six import raise_from


def main(attributes):
    """Replaces /mnt/flash/startup-config with new file.

    This action is dual-supervisor compatible.

    Attributes:
        url: path to source config/template

    Special_attributes:
        NODE: API object - see documentation for details

    Example:
        ::

          -
            action: replace_config
            attributes:
              url: files/configs/tor-startup-config
            name: "tor config"
    """

    node = attributes.get("NODE")
    url = attributes.get("url")

    if not url:
        raise RuntimeError("Missing attribute('url')")

    try:
        node.retrieve_url(url, node.startup_config())
    except Exception as exc:
        raise_from(RuntimeError("Unable to retrieve config from URL"), exc)
