Source code for ztps.install_cli_plugin

#!/usr/bin/env python
#
# Copyright (c) 2014, Arista Networks, Inc.
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#pylint: disable=W0703,E1103

CLI_PLUGIN_DIR = '/usr/lib/python2.7/site-packages/CliPlugin'
PERSISTENT_PLUGIN_DIR = '/mnt/flash/.ztp-plugins'

import os

def main(attributes):
    '''Installs EOS CliPlugin.

    Installs CliPlugin based on the value of the
    'url' attribute.

    This action is NOT dual-supervisor compatible.

    Args:
       attributes: list of attributes; use attributes.get(<ATTRIBUTE_NAME>)
                   to read attribute values

       Special attributes:
           node: attributes.get('NODE')
                 API: see documentation
    '''

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

    if not url:
        return 'Missing attribute(\'url\')'

    try:
        os.makedirs(PERSISTENT_PLUGIN_DIR)
    except OSError:
        # file exists
        pass

    name = url.split('/')[ -1 ]
    try:
        node.retrieve_url(url, '%s/%s' % 
                          (PERSISTENT_PLUGIN_DIR, name))
    except Exception as exc:
        return 'Unable to retrieve CliPlugin from URL (%s)' % exc

    lines = ['sudo cp %s/%s %s'  % (PERSISTENT_PLUGIN_DIR,
                                    name,
                                    CLI_PLUGIN_DIR)]

    node.append_rc_eos_lines(lines)