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option_helpers.py	17.68 MB	View DL Edit
__init__.py	221 B	View DL Edit

Edit file: /usr/lib/python3.9/site-packages/ansible/cli/arguments/option_helpers.py

# Copyright: (c) 2018, 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

import copy
import operator
import argparse
import os
import os.path
import sys
import time

from jinja2 import __version__ as j2_version

import ansible
from ansible import constants as C
from ansible.module_utils._text import to_native
from ansible.module_utils.common.yaml import HAS_LIBYAML, yaml_load
from ansible.release import __version__
from ansible.utils.path import unfrackpath

#
# Special purpose OptionParsers
#
class SortingHelpFormatter(argparse.HelpFormatter):
    def add_arguments(self, actions):
        actions = sorted(actions, key=operator.attrgetter('option_strings'))
        super(SortingHelpFormatter, self).add_arguments(actions)

class AnsibleVersion(argparse.Action):
    def __call__(self, parser, namespace, values, option_string=None):
        ansible_version = to_native(version(getattr(parser, 'prog')))
        print(ansible_version)
        parser.exit()

class UnrecognizedArgument(argparse.Action):
    def __init__(self, option_strings, dest, const=True, default=None, required=False, help=None, metavar=None, nargs=0):
        super(UnrecognizedArgument, self).__init__(option_strings=option_strings, dest=dest, nargs=nargs, const=const,
                                                   default=default, required=required, help=help)

def __call__(self, parser, namespace, values, option_string=None):
        parser.error('unrecognized arguments: %s' % option_string)

class PrependListAction(argparse.Action):
    """A near clone of ``argparse._AppendAction``, but designed to prepend list values
    instead of appending.
    """
    def __init__(self, option_strings, dest, nargs=None, const=None, default=None, type=None,
                 choices=None, required=False, help=None, metavar=None):
        if nargs == 0:
            raise ValueError('nargs for append actions must be > 0; if arg '
                             'strings are not supplying the value to append, '
                             'the append const action may be more appropriate')
        if const is not None and nargs != argparse.OPTIONAL:
            raise ValueError('nargs must be %r to supply const' % argparse.OPTIONAL)
        super(PrependListAction, self).__init__(
            option_strings=option_strings,
            dest=dest,
            nargs=nargs,
            const=const,
            default=default,
            type=type,
            choices=choices,
            required=required,
            help=help,
            metavar=metavar
        )

def __call__(self, parser, namespace, values, option_string=None):
        items = copy.copy(ensure_value(namespace, self.dest, []))
        items[0:0] = values
        setattr(namespace, self.dest, items)

def ensure_value(namespace, name, value):
    if getattr(namespace, name, None) is None:
        setattr(namespace, name, value)
    return getattr(namespace, name)

#
# Callbacks to validate and normalize Options
#
def unfrack_path(pathsep=False, follow=True):
    """Turn an Option's data into a single path in Ansible locations"""
    def inner(value):
        if pathsep:
            return [unfrackpath(x, follow=follow) for x in value.split(os.pathsep) if x]

if value == '-':
            return value

return unfrackpath(value, follow=follow)
    return inner

def maybe_unfrack_path(beacon):

def inner(value):
        if value.startswith(beacon):
            return beacon + unfrackpath(value[1:])
        return value
    return inner

def _git_repo_info(repo_path):
    """ returns a string containing git branch, commit id and commit date """
    result = None
    if os.path.exists(repo_path):
        # Check if the .git is a file. If it is a file, it means that we are in a submodule structure.
        if os.path.isfile(repo_path):
            try:
                with open(repo_path) as f:
                    gitdir = yaml_load(f).get('gitdir')
                # There is a possibility the .git file to have an absolute path.
                if os.path.isabs(gitdir):
                    repo_path = gitdir
                else:
                    repo_path = os.path.join(repo_path[:-4], gitdir)
            except (IOError, AttributeError):
                return ''
        with open(os.path.join(repo_path, "HEAD")) as f:
            line = f.readline().rstrip("\n")
            if line.startswith("ref:"):
                branch_path = os.path.join(repo_path, line[5:])
            else:
                branch_path = None
        if branch_path and os.path.exists(branch_path):
            branch = '/'.join(line.split('/')[2:])
            with open(branch_path) as f:
                commit = f.readline()[:10]
        else:
            # detached HEAD
            commit = line[:10]
            branch = 'detached HEAD'
            branch_path = os.path.join(repo_path, "HEAD")

date = time.localtime(os.stat(branch_path).st_mtime)
        if time.daylight == 0:
            offset = time.timezone
        else:
            offset = time.altzone
        result = "({0} {1}) last updated {2} (GMT {3:+04d})".format(branch, commit, time.strftime("%Y/%m/%d %H:%M:%S", date), int(offset / -36))
    else:
        result = ''
    return result

def _gitinfo():
    basedir = os.path.normpath(os.path.join(os.path.dirname(__file__), '..', '..', '..', '..'))
    repo_path = os.path.join(basedir, '.git')
    return _git_repo_info(repo_path)

def version(prog=None):
    """ return ansible version """
    if prog:
        result = ["{0} [core {1}]".format(prog, __version__)]
    else:
        result = [__version__]

gitinfo = _gitinfo()
    if gitinfo:
        result[0] = "{0} {1}".format(result[0], gitinfo)
    result.append("  config file = %s" % C.CONFIG_FILE)
    if C.DEFAULT_MODULE_PATH is None:
        cpath = "Default w/o overrides"
    else:
        cpath = C.DEFAULT_MODULE_PATH
    result.append("  configured module search path = %s" % cpath)
    result.append("  ansible python module location = %s" % ':'.join(ansible.__path__))
    result.append("  ansible collection location = %s" % ':'.join(C.COLLECTIONS_PATHS))
    result.append("  executable location = %s" % sys.argv[0])
    result.append("  python version = %s (%s)" % (''.join(sys.version.splitlines()), to_native(sys.executable)))
    result.append("  jinja version = %s" % j2_version)
    result.append("  libyaml = %s" % HAS_LIBYAML)
    return "\n".join(result)

#
# Functions to add pre-canned options to an OptionParser
#

def create_base_parser(prog, usage="", desc=None, epilog=None):
    """
    Create an options parser for all ansible scripts
    """
    # base opts
    parser = argparse.ArgumentParser(
        prog=prog,
        formatter_class=SortingHelpFormatter,
        epilog=epilog,
        description=desc,
        conflict_handler='resolve',
    )
    version_help = "show program's version number, config file location, configured module search path," \
                   " module location, executable location and exit"

parser.add_argument('--version', action=AnsibleVersion, nargs=0, help=version_help)
    add_verbosity_options(parser)
    return parser

def add_verbosity_options(parser):
    """Add options for verbosity"""
    parser.add_argument('-v', '--verbose', dest='verbosity', default=C.DEFAULT_VERBOSITY, action="count",
                        help="Causes Ansible to print more debug messages. Adding multiple -v will increase the verbosity, "
                             "the builtin plugins currently evaluate up to -vvvvvv. A reasonable level to start is -vvv, "
                             "connection debugging might require -vvvv.")

def add_async_options(parser):
    """Add options for commands which can launch async tasks"""
    parser.add_argument('-P', '--poll', default=C.DEFAULT_POLL_INTERVAL, type=int, dest='poll_interval',
                        help="set the poll interval if using -B (default=%s)" % C.DEFAULT_POLL_INTERVAL)
    parser.add_argument('-B', '--background', dest='seconds', type=int, default=0,
                        help='run asynchronously, failing after X seconds (default=N/A)')

def add_basedir_options(parser):
    """Add options for commands which can set a playbook basedir"""
    parser.add_argument('--playbook-dir', default=C.PLAYBOOK_DIR, dest='basedir', action='store',
                        help="Since this tool does not use playbooks, use this as a substitute playbook directory. "
                             "This sets the relative path for many features including roles/ group_vars/ etc.",
                        type=unfrack_path())

def add_check_options(parser):
    """Add options for commands which can run with diagnostic information of tasks"""
    parser.add_argument("-C", "--check", default=False, dest='check', action='store_true',
                        help="don't make any changes; instead, try to predict some of the changes that may occur")
    parser.add_argument("-D", "--diff", default=C.DIFF_ALWAYS, dest='diff', action='store_true',
                        help="when changing (small) files and templates, show the differences in those"
                             " files; works great with --check")

def add_connect_options(parser):
    """Add options for commands which need to connection to other hosts"""
    connect_group = parser.add_argument_group("Connection Options", "control as whom and how to connect to hosts")

connect_group.add_argument('--private-key', '--key-file', default=C.DEFAULT_PRIVATE_KEY_FILE, dest='private_key_file',
                               help='use this file to authenticate the connection', type=unfrack_path())
    connect_group.add_argument('-u', '--user', default=C.DEFAULT_REMOTE_USER, dest='remote_user',
                               help='connect as this user (default=%s)' % C.DEFAULT_REMOTE_USER)
    connect_group.add_argument('-c', '--connection', dest='connection', default=C.DEFAULT_TRANSPORT,
                               help="connection type to use (default=%s)" % C.DEFAULT_TRANSPORT)
    connect_group.add_argument('-T', '--timeout', default=C.DEFAULT_TIMEOUT, type=int, dest='timeout',
                               help="override the connection timeout in seconds (default=%s)" % C.DEFAULT_TIMEOUT)

# ssh only
    connect_group.add_argument('--ssh-common-args', default=None, dest='ssh_common_args',
                               help="specify common arguments to pass to sftp/scp/ssh (e.g. ProxyCommand)")
    connect_group.add_argument('--sftp-extra-args', default=None, dest='sftp_extra_args',
                               help="specify extra arguments to pass to sftp only (e.g. -f, -l)")
    connect_group.add_argument('--scp-extra-args', default=None, dest='scp_extra_args',
                               help="specify extra arguments to pass to scp only (e.g. -l)")
    connect_group.add_argument('--ssh-extra-args', default=None, dest='ssh_extra_args',
                               help="specify extra arguments to pass to ssh only (e.g. -R)")

parser.add_argument_group(connect_group)

connect_password_group = parser.add_mutually_exclusive_group()
    connect_password_group.add_argument('-k', '--ask-pass', default=C.DEFAULT_ASK_PASS, dest='ask_pass', action='store_true',
                                        help='ask for connection password')
    connect_password_group.add_argument('--connection-password-file', '--conn-pass-file', default=C.CONNECTION_PASSWORD_FILE, dest='connection_password_file',
                                        help="Connection password file", type=unfrack_path(), action='store')

parser.add_argument_group(connect_password_group)

def add_fork_options(parser):
    """Add options for commands that can fork worker processes"""
    parser.add_argument('-f', '--forks', dest='forks', default=C.DEFAULT_FORKS, type=int,
                        help="specify number of parallel processes to use (default=%s)" % C.DEFAULT_FORKS)

def add_inventory_options(parser):
    """Add options for commands that utilize inventory"""
    parser.add_argument('-i', '--inventory', '--inventory-file', dest='inventory', action="append",
                        help="specify inventory host path or comma separated host list. --inventory-file is deprecated")
    parser.add_argument('--list-hosts', dest='listhosts', action='store_true',
                        help='outputs a list of matching hosts; does not execute anything else')
    parser.add_argument('-l', '--limit', default=C.DEFAULT_SUBSET, dest='subset',
                        help='further limit selected hosts to an additional pattern')

def add_meta_options(parser):
    """Add options for commands which can launch meta tasks from the command line"""
    parser.add_argument('--force-handlers', default=C.DEFAULT_FORCE_HANDLERS, dest='force_handlers', action='store_true',
                        help="run handlers even if a task fails")
    parser.add_argument('--flush-cache', dest='flush_cache', action='store_true',
                        help="clear the fact cache for every host in inventory")

def add_module_options(parser):
    """Add options for commands that load modules"""
    module_path = C.config.get_configuration_definition('DEFAULT_MODULE_PATH').get('default', '')
    parser.add_argument('-M', '--module-path', dest='module_path', default=None,
                        help="prepend colon-separated path(s) to module library (default=%s)" % module_path,
                        type=unfrack_path(pathsep=True), action=PrependListAction)

def add_output_options(parser):
    """Add options for commands which can change their output"""
    parser.add_argument('-o', '--one-line', dest='one_line', action='store_true',
                        help='condense output')
    parser.add_argument('-t', '--tree', dest='tree', default=None,
                        help='log output to this directory')

def add_runas_options(parser):
    """
    Add options for commands which can run tasks as another user

Note that this includes the options from add_runas_prompt_options().  Only one of these
    functions should be used.
    """
    runas_group = parser.add_argument_group("Privilege Escalation Options", "control how and which user you become as on target hosts")

# consolidated privilege escalation (become)
    runas_group.add_argument("-b", "--become", default=C.DEFAULT_BECOME, action="store_true", dest='become',
                             help="run operations with become (does not imply password prompting)")
    runas_group.add_argument('--become-method', dest='become_method', default=C.DEFAULT_BECOME_METHOD,
                             help='privilege escalation method to use (default=%s)' % C.DEFAULT_BECOME_METHOD +
                                  ', use `ansible-doc -t become -l` to list valid choices.')
    runas_group.add_argument('--become-user', default=None, dest='become_user', type=str,
                             help='run operations as this user (default=%s)' % C.DEFAULT_BECOME_USER)

parser.add_argument_group(runas_group)

add_runas_prompt_options(parser)

def add_runas_prompt_options(parser, runas_group=None):
    """
    Add options for commands which need to prompt for privilege escalation credentials

Note that add_runas_options() includes these options already.  Only one of the two functions
    should be used.
    """
    if runas_group is not None:
        parser.add_argument_group(runas_group)

runas_pass_group = parser.add_mutually_exclusive_group()

runas_pass_group.add_argument('-K', '--ask-become-pass', dest='become_ask_pass', action='store_true',
                                  default=C.DEFAULT_BECOME_ASK_PASS,
                                  help='ask for privilege escalation password')
    runas_pass_group.add_argument('--become-password-file', '--become-pass-file', default=C.BECOME_PASSWORD_FILE, dest='become_password_file',
                                  help="Become password file", type=unfrack_path(), action='store')

parser.add_argument_group(runas_pass_group)

def add_runtask_options(parser):
    """Add options for commands that run a task"""
    parser.add_argument('-e', '--extra-vars', dest="extra_vars", action="append", type=maybe_unfrack_path('@'),
                        help="set additional variables as key=value or YAML/JSON, if filename prepend with @", default=[])

def add_tasknoplay_options(parser):
    """Add options for commands that run a task w/o a defined play"""
    parser.add_argument('--task-timeout', type=int, dest="task_timeout", action="store", default=C.TASK_TIMEOUT,
                        help="set task timeout limit in seconds, must be positive integer.")

def add_subset_options(parser):
    """Add options for commands which can run a subset of tasks"""
    parser.add_argument('-t', '--tags', dest='tags', default=C.TAGS_RUN, action='append',
                        help="only run plays and tasks tagged with these values")
    parser.add_argument('--skip-tags', dest='skip_tags', default=C.TAGS_SKIP, action='append',
                        help="only run plays and tasks whose tags do not match these values")

def add_vault_options(parser):
    """Add options for loading vault files"""
    parser.add_argument('--vault-id', default=[], dest='vault_ids', action='append', type=str,
                        help='the vault identity to use')
    base_group = parser.add_mutually_exclusive_group()
    base_group.add_argument('--ask-vault-password', '--ask-vault-pass', default=C.DEFAULT_ASK_VAULT_PASS, dest='ask_vault_pass', action='store_true',
                            help='ask for vault password')
    base_group.add_argument('--vault-password-file', '--vault-pass-file', default=[], dest='vault_password_files',
                            help="vault password file", type=unfrack_path(follow=False), action='append')

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