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: / proc / self / root / lib / python3.9 / site-packages / ansible / plugins / inventory /
Filename : host_list.py
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# Copyright (c) 2017 Ansible Project
# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)

from __future__ import (absolute_import, division, print_function)
__metaclass__ = type

DOCUMENTATION = r'''
    name: host_list
    version_added: "2.4"
    short_description: Parses a 'host list' string
    description:
        - Parses a host list string as a comma separated values of hosts
        - This plugin only applies to inventory strings that are not paths and contain a comma.
'''

EXAMPLES = r'''
    # define 2 hosts in command line
    # ansible -i '10.10.2.6, 10.10.2.4' -m ping all

    # DNS resolvable names
    # ansible -i 'host1.example.com, host2' -m user -a 'name=me state=absent' all

    # just use localhost
    # ansible-playbook -i 'localhost,' play.yml -c local
'''

import os

from ansible.errors import AnsibleError, AnsibleParserError
from ansible.module_utils._text import to_bytes, to_native, to_text
from ansible.parsing.utils.addresses import parse_address
from ansible.plugins.inventory import BaseInventoryPlugin


class InventoryModule(BaseInventoryPlugin):

    NAME = 'host_list'

    def verify_file(self, host_list):

        valid = False
        b_path = to_bytes(host_list, errors='surrogate_or_strict')
        if not os.path.exists(b_path) and ',' in host_list:
            valid = True
        return valid

    def parse(self, inventory, loader, host_list, cache=True):
        ''' parses the inventory file '''

        super(InventoryModule, self).parse(inventory, loader, host_list)

        try:
            for h in host_list.split(','):
                h = h.strip()
                if h:
                    try:
                        (host, port) = parse_address(h, allow_ranges=False)
                    except AnsibleError as e:
                        self.display.vvv("Unable to parse address from hostname, leaving unchanged: %s" % to_text(e))
                        host = h
                        port = None

                    if host not in self.inventory.hosts:
                        self.inventory.add_host(host, group='ungrouped', port=port)
        except Exception as e:
            raise AnsibleParserError("Invalid data from string, could not parse: %s" % to_native(e))