ansible/test/lib/ansible_test/_internal/cli.py

"""Test runner for all Ansible tests."""
from __future__ import (absolute_import, division, print_function)
__metaclass__ = type

import errno
import os
import sys

# This import should occur as early as possible.
# It must occur before subprocess has been imported anywhere in the current process.
from .init import (
    CURRENT_RLIMIT_NOFILE,
)

from . import types as t

from .util import (
    ApplicationError,
    display,
    raw_command,
    generate_pip_command,
    read_lines_without_comments,
    MAXFD,
    ANSIBLE_TEST_DATA_ROOT,
    SUPPORTED_PYTHON_VERSIONS,
)

from .delegation import (
    check_delegation_args,
    delegate,
)

from .executor import (
    ApplicationWarning,
    Delegate,
    generate_pip_install,
    configure_pypi_proxy,
)

from .commands.integration.posix import (
    command_posix_integration,
)

from .commands.integration.network import (
    command_network_integration,
)

from .commands.integration.windows import (
    command_windows_integration,
)

from .commands.shell import (
    command_shell,
)

from .config import (
    PosixIntegrationConfig,
    WindowsIntegrationConfig,
    NetworkIntegrationConfig,
    SanityConfig,
    UnitsConfig,
    ShellConfig,
)

from .commands.env import (
    EnvConfig,
    command_env,
    configure_timeout,
)

from .commands.sanity import (
    command_sanity,
    sanity_init,
    sanity_get_tests,
)

from .commands.units import (
    command_units,
)

from .target import (
    find_target_completion,
    walk_posix_integration_targets,
    walk_network_integration_targets,
    walk_windows_integration_targets,
    walk_units_targets,
    walk_sanity_targets,
)

from .commands.integration.cloud import (
    initialize_cloud_plugins,
)

from .core_ci import (
    AnsibleCoreCI,
)

from .data import (
    data_context,
)

from .util_common import (
    get_docker_completion,
    get_network_completion,
    get_remote_completion,
    CommonConfig,
)

from .commands.coverage.combine import (
    command_coverage_combine,
    CoverageCombineConfig,
)

from .commands.coverage.erase import (
    command_coverage_erase,
    CoverageEraseConfig,
)

from .commands.coverage.html import (
    command_coverage_html,
    CoverageHtmlConfig,
)

from .commands.coverage.report import (
    command_coverage_report,
    CoverageReportConfig,
)

from .commands.coverage.xml import (
    command_coverage_xml,
    CoverageXmlConfig,
)

from .commands.coverage.analyze.targets.generate import (
    command_coverage_analyze_targets_generate,
    CoverageAnalyzeTargetsGenerateConfig,
)

from .commands.coverage.analyze.targets.expand import (
    command_coverage_analyze_targets_expand,
    CoverageAnalyzeTargetsExpandConfig,
)

from .commands.coverage.analyze.targets.filter import (
    command_coverage_analyze_targets_filter,
    CoverageAnalyzeTargetsFilterConfig,
)

from .commands.coverage.analyze.targets.combine import (
    command_coverage_analyze_targets_combine,
    CoverageAnalyzeTargetsCombineConfig,
)

from .commands.coverage.analyze.targets.missing import (
    command_coverage_analyze_targets_missing,
    CoverageAnalyzeTargetsMissingConfig,
)

from .commands.coverage import (
    COVERAGE_GROUPS,
)

if t.TYPE_CHECKING:
    import argparse as argparse_module


def main():
    """Main program function."""
    try:
        os.chdir(data_context().content.root)
        initialize_cloud_plugins()
        sanity_init()
        args = parse_args()
        config = args.config(args)  # type: CommonConfig
        display.verbosity = config.verbosity
        display.truncate = config.truncate
        display.redact = config.redact
        display.color = config.color
        display.info_stderr = config.info_stderr
        check_delegation_args(config)
        configure_timeout(config)

        display.info('RLIMIT_NOFILE: %s' % (CURRENT_RLIMIT_NOFILE,), verbosity=2)
        display.info('MAXFD: %d' % MAXFD, verbosity=2)

        try:
            configure_pypi_proxy(config)
            args.func(config)
            delegate_args = None
        except Delegate as ex:
            # save delegation args for use once we exit the exception handler
            delegate_args = (ex.exclude, ex.require)

        if delegate_args:
            # noinspection PyTypeChecker
            delegate(config, *delegate_args)

        display.review_warnings()
    except ApplicationWarning as ex:
        display.warning(u'%s' % ex)
        sys.exit(0)
    except ApplicationError as ex:
        display.error(u'%s' % ex)
        sys.exit(1)
    except KeyboardInterrupt:
        sys.exit(2)
    except IOError as ex:
        if ex.errno == errno.EPIPE:
            sys.exit(3)
        raise


def parse_args():
    """Parse command line arguments."""
    try:
        import argparse
    except ImportError:
        if '--requirements' not in sys.argv:
            raise
        # install argparse without using constraints since pip may be too old to support them
        # not using the ansible-test requirements file since this install is for sys.executable rather than the delegated python (which may be different)
        # argparse has no special requirements, so upgrading pip is not required here
        raw_command(generate_pip_install(generate_pip_command(sys.executable), '', packages=['argparse'], use_constraints=False))
        import argparse

    try:
        import argcomplete
    except ImportError:
        argcomplete = None

    if argcomplete:
        epilog = 'Tab completion available using the "argcomplete" python package.'
    else:
        epilog = 'Install the "argcomplete" python package to enable tab completion.'

    def key_value_type(value):  # type: (str) -> t.Tuple[str, str]
        """Wrapper around key_value."""
        return key_value(argparse, value)

    parser = argparse.ArgumentParser(epilog=epilog)

    common = argparse.ArgumentParser(add_help=False)

    common.add_argument('-e', '--explain',
                        action='store_true',
                        help='explain commands that would be executed')

    common.add_argument('-v', '--verbose',
                        dest='verbosity',
                        action='count',
                        default=0,
                        help='display more output')

    common.add_argument('--pypi-proxy',
                        action='store_true',
                        help=argparse.SUPPRESS)  # internal use only

    common.add_argument('--pypi-endpoint',
                        metavar='URI',
                        default=None,
                        help=argparse.SUPPRESS)  # internal use only

    common.add_argument('--color',
                        metavar='COLOR',
                        nargs='?',
                        help='generate color output: %(choices)s',
                        choices=('yes', 'no', 'auto'),
                        const='yes',
                        default='auto')

    common.add_argument('--debug',
                        action='store_true',
                        help='run ansible commands in debug mode')

    # noinspection PyTypeChecker
    common.add_argument('--truncate',
                        dest='truncate',
                        metavar='COLUMNS',
                        type=int,
                        default=display.columns,
                        help='truncate some long output (0=disabled) (default: auto)')

    common.add_argument('--redact',
                        dest='redact',
                        action='store_true',
                        default=True,
                        help='redact sensitive values in output')

    common.add_argument('--no-redact',
                        dest='redact',
                        action='store_false',
                        default=False,
                        help='show sensitive values in output')

    common.add_argument('--check-python',
                        choices=SUPPORTED_PYTHON_VERSIONS,
                        help=argparse.SUPPRESS)

    test = argparse.ArgumentParser(add_help=False, parents=[common])

    test.add_argument('include',
                      metavar='TARGET',
                      nargs='*',
                      help='test the specified target').completer = complete_target

    test.add_argument('--include',
                      metavar='TARGET',
                      action='append',
                      help='include the specified target').completer = complete_target

    test.add_argument('--exclude',
                      metavar='TARGET',
                      action='append',
                      help='exclude the specified target').completer = complete_target

    test.add_argument('--require',
                      metavar='TARGET',
                      action='append',
                      help='require the specified target').completer = complete_target

    test.add_argument('--coverage',
                      action='store_true',
                      help='analyze code coverage when running tests')

    test.add_argument('--coverage-label',
                      default='',
                      help='label to include in coverage output file names')

    test.add_argument('--coverage-check',
                      action='store_true',
                      help='only verify code coverage can be enabled')

    test.add_argument('--metadata',
                      help=argparse.SUPPRESS)

    test.add_argument('--base-branch',
                      help='base branch used for change detection')

    add_changes(test, argparse)
    add_environments(test, argparse)

    integration = argparse.ArgumentParser(add_help=False, parents=[test])

    integration.add_argument('--python',
                             metavar='VERSION',
                             choices=SUPPORTED_PYTHON_VERSIONS + ('default',),
                             help='python version: %s' % ', '.join(SUPPORTED_PYTHON_VERSIONS))

    integration.add_argument('--start-at',
                             metavar='TARGET',
                             help='start at the specified target').completer = complete_target

    integration.add_argument('--start-at-task',
                             metavar='TASK',
                             help='start at the specified task')

    integration.add_argument('--tags',
                             metavar='TAGS',
                             help='only run plays and tasks tagged with these values')

    integration.add_argument('--skip-tags',
                             metavar='TAGS',
                             help='only run plays and tasks whose tags do not match these values')

    integration.add_argument('--diff',
                             action='store_true',
                             help='show diff output')

    integration.add_argument('--allow-destructive',
                             action='store_true',
                             help='allow destructive tests')

    integration.add_argument('--allow-root',
                             action='store_true',
                             help='allow tests requiring root when not root')

    integration.add_argument('--allow-disabled',
                             action='store_true',
                             help='allow tests which have been marked as disabled')

    integration.add_argument('--allow-unstable',
                             action='store_true',
                             help='allow tests which have been marked as unstable')

    integration.add_argument('--allow-unstable-changed',
                             action='store_true',
                             help='allow tests which have been marked as unstable when focused changes are detected')

    integration.add_argument('--allow-unsupported',
                             action='store_true',
                             help='allow tests which have been marked as unsupported')

    integration.add_argument('--retry-on-error',
                             action='store_true',
                             help='retry failed test with increased verbosity')

    integration.add_argument('--continue-on-error',
                             action='store_true',
                             help='continue after failed test')

    integration.add_argument('--debug-strategy',
                             action='store_true',
                             help='run test playbooks using the debug strategy')

    integration.add_argument('--changed-all-target',
                             metavar='TARGET',
                             default='all',
                             help='target to run when all tests are needed')

    integration.add_argument('--changed-all-mode',
                             metavar='MODE',
                             choices=('default', 'include', 'exclude'),
                             help='include/exclude behavior with --changed-all-target: %(choices)s')

    integration.add_argument('--list-targets',
                             action='store_true',
                             help='list matching targets instead of running tests')

    integration.add_argument('--no-temp-workdir',
                             action='store_true',
                             help='do not run tests from a temporary directory (use only for verifying broken tests)')

    integration.add_argument('--no-temp-unicode',
                             action='store_true',
                             help='avoid unicode characters in temporary directory (use only for verifying broken tests)')

    subparsers = parser.add_subparsers(metavar='COMMAND')
    subparsers.required = True  # work-around for python 3 bug which makes subparsers optional

    posix_integration = subparsers.add_parser('integration',
                                              parents=[integration],
                                              help='posix integration tests')

    posix_integration.set_defaults(func=command_posix_integration,
                                   targets=walk_posix_integration_targets,
                                   config=PosixIntegrationConfig)

    add_extra_docker_options(posix_integration)

    network_integration = subparsers.add_parser('network-integration',
                                                parents=[integration],
                                                help='network integration tests')

    network_integration.set_defaults(func=command_network_integration,
                                     targets=walk_network_integration_targets,
                                     config=NetworkIntegrationConfig)

    add_extra_docker_options(network_integration, integration=False)

    network_integration.add_argument('--platform',
                                     metavar='PLATFORM',
                                     action='append',
                                     help='network platform/version').completer = complete_network_platform

    network_integration.add_argument('--platform-collection',
                                     type=key_value_type,
                                     metavar='PLATFORM=COLLECTION',
                                     action='append',
                                     help='collection used to test platform').completer = complete_network_platform_collection

    network_integration.add_argument('--platform-connection',
                                     type=key_value_type,
                                     metavar='PLATFORM=CONNECTION',
                                     action='append',
                                     help='connection used to test platform').completer = complete_network_platform_connection

    network_integration.add_argument('--inventory',
                                     metavar='PATH',
                                     help='path to inventory used for tests')

    network_integration.add_argument('--testcase',
                                     metavar='TESTCASE',
                                     help='limit a test to a specified testcase').completer = complete_network_testcase

    windows_integration = subparsers.add_parser('windows-integration',
                                                parents=[integration],
                                                help='windows integration tests')

    windows_integration.set_defaults(func=command_windows_integration,
                                     targets=walk_windows_integration_targets,
                                     config=WindowsIntegrationConfig)

    add_extra_docker_options(windows_integration, integration=False)

    windows_integration.add_argument('--windows',
                                     metavar='VERSION',
                                     action='append',
                                     help='windows version').completer = complete_windows

    windows_integration.add_argument('--inventory',
                                     metavar='PATH',
                                     help='path to inventory used for tests')

    units = subparsers.add_parser('units',
                                  parents=[test],
                                  help='unit tests')

    units.set_defaults(func=command_units,
                       targets=walk_units_targets,
                       config=UnitsConfig)

    units.add_argument('--python',
                       metavar='VERSION',
                       choices=SUPPORTED_PYTHON_VERSIONS + ('default',),
                       help='python version: %s' % ', '.join(SUPPORTED_PYTHON_VERSIONS))

    units.add_argument('--collect-only',
                       action='store_true',
                       help='collect tests but do not execute them')

    # noinspection PyTypeChecker
    units.add_argument('--num-workers',
                       type=int,
                       help='number of workers to use (default: auto)')

    units.add_argument('--requirements-mode',
                       choices=('only', 'skip'),
                       help=argparse.SUPPRESS)

    add_extra_docker_options(units, integration=False)

    sanity = subparsers.add_parser('sanity',
                                   parents=[test],
                                   help='sanity tests')

    sanity.set_defaults(func=command_sanity,
                        targets=walk_sanity_targets,
                        config=SanityConfig)

    sanity.add_argument('--test',
                        metavar='TEST',
                        action='append',
                        choices=[test.name for test in sanity_get_tests()],
                        help='tests to run').completer = complete_sanity_test

    sanity.add_argument('--skip-test',
                        metavar='TEST',
                        action='append',
                        choices=[test.name for test in sanity_get_tests()],
                        help='tests to skip').completer = complete_sanity_test

    sanity.add_argument('--allow-disabled',
                        action='store_true',
                        help='allow tests to run which are disabled by default')

    sanity.add_argument('--list-tests',
                        action='store_true',
                        help='list available tests')

    sanity.add_argument('--python',
                        metavar='VERSION',
                        choices=SUPPORTED_PYTHON_VERSIONS + ('default',),
                        help='python version: %s' % ', '.join(SUPPORTED_PYTHON_VERSIONS))

    sanity.add_argument('--enable-optional-errors',
                        action='store_true',
                        help='enable optional errors')

    add_lint(sanity)
    add_extra_docker_options(sanity, integration=False)

    shell = subparsers.add_parser('shell',
                                  parents=[common],
                                  help='open an interactive shell')

    shell.add_argument('--python',
                       metavar='VERSION',
                       choices=SUPPORTED_PYTHON_VERSIONS + ('default',),
                       help='python version: %s' % ', '.join(SUPPORTED_PYTHON_VERSIONS))

    shell.set_defaults(func=command_shell,
                       config=ShellConfig)

    shell.add_argument('--raw',
                       action='store_true',
                       help='direct to shell with no setup')

    add_environments(shell, argparse)
    add_extra_docker_options(shell)

    coverage_common = argparse.ArgumentParser(add_help=False, parents=[common])

    add_environments(coverage_common, argparse, isolated_delegation=False)

    coverage_common_isolated_delegation = argparse.ArgumentParser(add_help=False, parents=[common])

    add_environments(coverage_common_isolated_delegation, argparse)

    coverage = subparsers.add_parser('coverage',
                                     help='code coverage management and reporting')

    coverage_subparsers = coverage.add_subparsers(metavar='COMMAND')
    coverage_subparsers.required = True  # work-around for python 3 bug which makes subparsers optional

    add_coverage_analyze(coverage_subparsers, coverage_common)

    coverage_combine = coverage_subparsers.add_parser('combine',
                                                      parents=[coverage_common_isolated_delegation],
                                                      help='combine coverage data and rewrite remote paths')

    coverage_combine.set_defaults(func=command_coverage_combine,
                                  config=CoverageCombineConfig)

    coverage_combine.add_argument('--export',
                                  help='directory to export combined coverage files to')

    add_extra_coverage_options(coverage_combine)

    coverage_erase = coverage_subparsers.add_parser('erase',
                                                    parents=[coverage_common],
                                                    help='erase coverage data files')

    coverage_erase.set_defaults(func=command_coverage_erase,
                                config=CoverageEraseConfig)

    coverage_report = coverage_subparsers.add_parser('report',
                                                     parents=[coverage_common_isolated_delegation],
                                                     help='generate console coverage report')

    coverage_report.set_defaults(func=command_coverage_report,
                                 config=CoverageReportConfig)

    coverage_report.add_argument('--show-missing',
                                 action='store_true',
                                 help='show line numbers of statements not executed')
    coverage_report.add_argument('--include',
                                 metavar='PAT1,PAT2,...',
                                 help='include only files whose paths match one of these '
                                      'patterns. Accepts shell-style wildcards, which must be '
                                      'quoted.')
    coverage_report.add_argument('--omit',
                                 metavar='PAT1,PAT2,...',
                                 help='omit files whose paths match one of these patterns. '
                                      'Accepts shell-style wildcards, which must be quoted.')

    add_extra_coverage_options(coverage_report)

    coverage_html = coverage_subparsers.add_parser('html',
                                                   parents=[coverage_common_isolated_delegation],
                                                   help='generate html coverage report')

    coverage_html.set_defaults(func=command_coverage_html,
                               config=CoverageHtmlConfig)

    add_extra_coverage_options(coverage_html)

    coverage_xml = coverage_subparsers.add_parser('xml',
                                                  parents=[coverage_common_isolated_delegation],
                                                  help='generate xml coverage report')

    coverage_xml.set_defaults(func=command_coverage_xml,
                              config=CoverageXmlConfig)

    add_extra_coverage_options(coverage_xml)

    env = subparsers.add_parser('env',
                                parents=[common],
                                help='show information about the test environment')

    env.set_defaults(func=command_env,
                     config=EnvConfig)

    env.add_argument('--show',
                     action='store_true',
                     help='show environment on stdout')

    env.add_argument('--dump',
                     action='store_true',
                     help='dump environment to disk')

    env.add_argument('--list-files',
                     action='store_true',
                     help='list files on stdout')

    # noinspection PyTypeChecker
    env.add_argument('--timeout',
                     type=int,
                     metavar='MINUTES',
                     help='timeout for future ansible-test commands (0 clears)')

    if argcomplete:
        argcomplete.autocomplete(parser, always_complete_options=False, validator=lambda i, k: True)

    args = parser.parse_args()

    if args.explain and not args.verbosity:
        args.verbosity = 1

    if args.color == 'yes':
        args.color = True
    elif args.color == 'no':
        args.color = False
    else:
        args.color = sys.stdout.isatty()

    return args


def key_value(argparse, value):  # type: (argparse_module, str) -> t.Tuple[str, str]
    """Type parsing and validation for argparse key/value pairs separated by an '=' character."""
    parts = value.split('=')

    if len(parts) != 2:
        raise argparse.ArgumentTypeError('"%s" must be in the format "key=value"' % value)

    return parts[0], parts[1]


# noinspection PyProtectedMember,PyUnresolvedReferences
def add_coverage_analyze(coverage_subparsers, coverage_common):  # type: (argparse_module._SubParsersAction, argparse_module.ArgumentParser) -> None
    """Add the `coverage analyze` subcommand."""
    analyze = coverage_subparsers.add_parser(
        'analyze',
        help='analyze collected coverage data',
    )

    analyze_subparsers = analyze.add_subparsers(metavar='COMMAND')
    analyze_subparsers.required = True  # work-around for python 3 bug which makes subparsers optional

    targets = analyze_subparsers.add_parser(
        'targets',
        help='analyze integration test target coverage',
    )

    targets_subparsers = targets.add_subparsers(metavar='COMMAND')
    targets_subparsers.required = True  # work-around for python 3 bug which makes subparsers optional

    targets_generate = targets_subparsers.add_parser(
        'generate',
        parents=[coverage_common],
        help='aggregate coverage by integration test target',
    )

    targets_generate.set_defaults(
        func=command_coverage_analyze_targets_generate,
        config=CoverageAnalyzeTargetsGenerateConfig,
    )

    targets_generate.add_argument(
        'input_dir',
        nargs='?',
        help='directory to read coverage from',
    )

    targets_generate.add_argument(
        'output_file',
        help='output file for aggregated coverage',
    )

    targets_expand = targets_subparsers.add_parser(
        'expand',
        parents=[coverage_common],
        help='expand target names from integers in aggregated coverage',
    )

    targets_expand.set_defaults(
        func=command_coverage_analyze_targets_expand,
        config=CoverageAnalyzeTargetsExpandConfig,
    )

    targets_expand.add_argument(
        'input_file',
        help='input file to read aggregated coverage from',
    )

    targets_expand.add_argument(
        'output_file',
        help='output file to write expanded coverage to',
    )

    targets_filter = targets_subparsers.add_parser(
        'filter',
        parents=[coverage_common],
        help='filter aggregated coverage data',
    )

    targets_filter.set_defaults(
        func=command_coverage_analyze_targets_filter,
        config=CoverageAnalyzeTargetsFilterConfig,
    )

    targets_filter.add_argument(
        'input_file',
        help='input file to read aggregated coverage from',
    )

    targets_filter.add_argument(
        'output_file',
        help='output file to write expanded coverage to',
    )

    targets_filter.add_argument(
        '--include-target',
        dest='include_targets',
        action='append',
        help='include the specified targets',
    )

    targets_filter.add_argument(
        '--exclude-target',
        dest='exclude_targets',
        action='append',
        help='exclude the specified targets',
    )

    targets_filter.add_argument(
        '--include-path',
        help='include paths matching the given regex',
    )

    targets_filter.add_argument(
        '--exclude-path',
        help='exclude paths matching the given regex',
    )

    targets_combine = targets_subparsers.add_parser(
        'combine',
        parents=[coverage_common],
        help='combine multiple aggregated coverage files',
    )

    targets_combine.set_defaults(
        func=command_coverage_analyze_targets_combine,
        config=CoverageAnalyzeTargetsCombineConfig,
    )

    targets_combine.add_argument(
        'input_file',
        nargs='+',
        help='input file to read aggregated coverage from',
    )

    targets_combine.add_argument(
        'output_file',
        help='output file to write aggregated coverage to',
    )

    targets_missing = targets_subparsers.add_parser(
        'missing',
        parents=[coverage_common],
        help='identify coverage in one file missing in another',
    )

    targets_missing.set_defaults(
        func=command_coverage_analyze_targets_missing,
        config=CoverageAnalyzeTargetsMissingConfig,
    )

    targets_missing.add_argument(
        'from_file',
        help='input file containing aggregated coverage',
    )

    targets_missing.add_argument(
        'to_file',
        help='input file containing aggregated coverage',
    )

    targets_missing.add_argument(
        'output_file',
        help='output file to write aggregated coverage to',
    )

    targets_missing.add_argument(
        '--only-gaps',
        action='store_true',
        help='report only arcs/lines not hit by any target',
    )

    targets_missing.add_argument(
        '--only-exists',
        action='store_true',
        help='limit results to files that exist',
    )


def add_lint(parser):
    """
    :type parser: argparse.ArgumentParser
    """
    parser.add_argument('--lint',
                        action='store_true',
                        help='write lint output to stdout, everything else stderr')

    parser.add_argument('--junit',
                        action='store_true',
                        help='write test failures to junit xml files')

    parser.add_argument('--failure-ok',
                        action='store_true',
                        help='exit successfully on failed tests after saving results')


def add_changes(parser, argparse):
    """
    :type parser: argparse.ArgumentParser
    :type argparse: argparse
    """
    parser.add_argument('--changed', action='store_true', help='limit targets based on changes')

    changes = parser.add_argument_group(title='change detection arguments')

    changes.add_argument('--tracked', action='store_true', help=argparse.SUPPRESS)
    changes.add_argument('--untracked', action='store_true', help='include untracked files')
    changes.add_argument('--ignore-committed', dest='committed', action='store_false', help='exclude committed files')
    changes.add_argument('--ignore-staged', dest='staged', action='store_false', help='exclude staged files')
    changes.add_argument('--ignore-unstaged', dest='unstaged', action='store_false', help='exclude unstaged files')

    changes.add_argument('--changed-from', metavar='PATH', help=argparse.SUPPRESS)
    changes.add_argument('--changed-path', metavar='PATH', action='append', help=argparse.SUPPRESS)


def add_environments(parser, argparse, isolated_delegation=True):
    """
    :type parser: argparse.ArgumentParser
    :type argparse: argparse
    :type isolated_delegation: bool
    """
    parser.add_argument('--requirements',
                        action='store_true',
                        help='install command requirements')

    parser.add_argument('--python-interpreter',
                        metavar='PATH',
                        default=None,
                        help='path to the docker or remote python interpreter')

    parser.add_argument('--no-pip-check',
                        dest='pip_check',
                        default=True,
                        action='store_false',
                        help='do not run "pip check" to verify requirements')

    environments = parser.add_mutually_exclusive_group()

    environments.add_argument('--local',
                              action='store_true',
                              help='run from the local environment')

    environments.add_argument('--venv',
                              action='store_true',
                              help='run from ansible-test managed virtual environments')

    venv = parser.add_argument_group(title='venv arguments')

    venv.add_argument('--venv-system-site-packages',
                      action='store_true',
                      help='enable system site packages')

    if not isolated_delegation:
        environments.set_defaults(
            containers=None,
            docker=None,
            remote=None,
            remote_stage=None,
            remote_provider=None,
            remote_terminate=None,
            remote_endpoint=None,
            python_interpreter=None,
        )

        return

    parser.add_argument('--containers',
                        help=argparse.SUPPRESS)  # internal use only

    environments.add_argument('--docker',
                              metavar='IMAGE',
                              nargs='?',
                              default=None,
                              const='default',
                              help='run from a docker container').completer = complete_docker

    environments.add_argument('--remote',
                              metavar='PLATFORM',
                              default=None,
                              help='run from a remote instance').completer = complete_remote_shell if parser.prog.endswith(' shell') else complete_remote

    remote = parser.add_argument_group(title='remote arguments')

    remote.add_argument('--remote-stage',
                        metavar='STAGE',
                        help='remote stage to use: prod, dev',
                        default='prod').completer = complete_remote_stage

    remote.add_argument('--remote-provider',
                        metavar='PROVIDER',
                        help='remote provider to use: %(choices)s',
                        choices=['default'] + sorted(AnsibleCoreCI.PROVIDERS.keys()),
                        default='default')

    remote.add_argument('--remote-endpoint',
                        metavar='ENDPOINT',
                        help='remote provisioning endpoint to use (default: auto)',
                        default=None)

    remote.add_argument('--remote-terminate',
                        metavar='WHEN',
                        help='terminate remote instance: %(choices)s (default: %(default)s)',
                        choices=['never', 'always', 'success'],
                        default='never')


def add_extra_coverage_options(parser):
    """
    :type parser: argparse.ArgumentParser
    """
    parser.add_argument('--group-by',
                        metavar='GROUP',
                        action='append',
                        choices=COVERAGE_GROUPS,
                        help='group output by: %s' % ', '.join(COVERAGE_GROUPS))

    parser.add_argument('--all',
                        action='store_true',
                        help='include all python/powershell source files')

    parser.add_argument('--stub',
                        action='store_true',
                        help='generate empty report of all python/powershell source files')


def add_extra_docker_options(parser, integration=True):
    """
    :type parser: argparse.ArgumentParser
    :type integration: bool
    """
    docker = parser.add_argument_group(title='docker arguments')

    docker.add_argument('--docker-no-pull',
                        action='store_false',
                        dest='docker_pull',
                        help='do not explicitly pull the latest docker images')

    if data_context().content.is_ansible:
        docker.add_argument('--docker-keep-git',
                            action='store_true',
                            help='transfer git related files into the docker container')
    else:
        docker.set_defaults(
            docker_keep_git=False,
        )

    docker.add_argument('--docker-seccomp',
                        metavar='SC',
                        choices=('default', 'unconfined'),
                        default=None,
                        help='set seccomp confinement for the test container: %(choices)s')

    docker.add_argument('--docker-terminate',
                        metavar='WHEN',
                        help='terminate docker container: %(choices)s (default: %(default)s)',
                        choices=['never', 'always', 'success'],
                        default='always')

    if not integration:
        return

    docker.add_argument('--docker-privileged',
                        action='store_true',
                        help='run docker container in privileged mode')

    docker.add_argument('--docker-network',
                        help='run using the specified docker network')

    # noinspection PyTypeChecker
    docker.add_argument('--docker-memory',
                        help='memory limit for docker in bytes', type=int)


# noinspection PyUnusedLocal
def complete_remote_stage(prefix, parsed_args, **_):  # pylint: disable=unused-argument
    """
    :type prefix: unicode
    :type parsed_args: any
    :rtype: list[str]
    """
    return [stage for stage in ('prod', 'dev') if stage.startswith(prefix)]


def complete_target(prefix, parsed_args, **_):
    """
    :type prefix: unicode
    :type parsed_args: any
    :rtype: list[str]
    """
    return find_target_completion(parsed_args.targets, prefix)


# noinspection PyUnusedLocal
def complete_remote(prefix, parsed_args, **_):
    """
    :type prefix: unicode
    :type parsed_args: any
    :rtype: list[str]
    """
    del parsed_args

    images = sorted(get_remote_completion().keys())

    return [i for i in images if i.startswith(prefix)]


# noinspection PyUnusedLocal
def complete_remote_shell(prefix, parsed_args, **_):
    """
    :type prefix: unicode
    :type parsed_args: any
    :rtype: list[str]
    """
    del parsed_args

    images = sorted(get_remote_completion().keys())

    windows_completion_path = os.path.join(ANSIBLE_TEST_DATA_ROOT, 'completion', 'windows.txt')
    images.extend(["windows/%s" % i for i in read_lines_without_comments(windows_completion_path, remove_blank_lines=True)])

    return [i for i in images if i.startswith(prefix)]


# noinspection PyUnusedLocal
def complete_docker(prefix, parsed_args, **_):
    """
    :type prefix: unicode
    :type parsed_args: any
    :rtype: list[str]
    """
    del parsed_args

    images = sorted(get_docker_completion().keys())

    return [i for i in images if i.startswith(prefix)]


def complete_windows(prefix, parsed_args, **_):
    """
    :type prefix: unicode
    :type parsed_args: any
    :rtype: list[str]
    """
    images = read_lines_without_comments(os.path.join(ANSIBLE_TEST_DATA_ROOT, 'completion', 'windows.txt'), remove_blank_lines=True)

    return [i for i in images if i.startswith(prefix) and (not parsed_args.windows or i not in parsed_args.windows)]


def complete_network_platform(prefix, parsed_args, **_):
    """
    :type prefix: unicode
    :type parsed_args: any
    :rtype: list[str]
    """
    images = sorted(get_network_completion())

    return [i for i in images if i.startswith(prefix) and (not parsed_args.platform or i not in parsed_args.platform)]


def complete_network_platform_collection(prefix, parsed_args, **_):
    """
    :type prefix: unicode
    :type parsed_args: any
    :rtype: list[str]
    """
    left = prefix.split('=')[0]
    images = sorted(set(image.split('/')[0] for image in get_network_completion()))

    return [i + '=' for i in images if i.startswith(left) and (not parsed_args.platform_collection or i not in [x[0] for x in parsed_args.platform_collection])]


def complete_network_platform_connection(prefix, parsed_args, **_):
    """
    :type prefix: unicode
    :type parsed_args: any
    :rtype: list[str]
    """
    left = prefix.split('=')[0]
    images = sorted(set(image.split('/')[0] for image in get_network_completion()))

    return [i + '=' for i in images if i.startswith(left) and (not parsed_args.platform_connection or i not in [x[0] for x in parsed_args.platform_connection])]


def complete_network_testcase(prefix, parsed_args, **_):
    """
    :type prefix: unicode
    :type parsed_args: any
    :rtype: list[str]
    """
    testcases = []

    # since testcases are module specific, don't autocomplete if more than one
    # module is specidied
    if len(parsed_args.include) != 1:
        return []

    test_dir = os.path.join(data_context().content.integration_targets_path, parsed_args.include[0], 'tests')
    connection_dirs = data_context().content.get_dirs(test_dir)

    for connection_dir in connection_dirs:
        for testcase in [os.path.basename(path) for path in data_context().content.get_files(connection_dir)]:
            if testcase.startswith(prefix):
                testcases.append(testcase.split('.')[0])

    return testcases


# noinspection PyUnusedLocal
def complete_sanity_test(prefix, parsed_args, **_):
    """
    :type prefix: unicode
    :type parsed_args: any
    :rtype: list[str]
    """
    del parsed_args

    tests = sorted(test.name for test in sanity_get_tests())

    return [i for i in tests if i.startswith(prefix)]