REDROOM

Navigation

Breadcrumbs

Create

Preview: importer.py Size: 2.43 KB

/lib/python3.6/site-packages/cloudinit/importer.py

# Copyright (C) 2012 Canonical Ltd.
# Copyright (C) 2012 Hewlett-Packard Development Company, L.P.
# Copyright (C) 2012 Yahoo! Inc.
#
# Author: Scott Moser <scott.moser@canonical.com>
# Author: Juerg Haefliger <juerg.haefliger@hp.com>
# Author: Joshua Harlow <harlowja@yahoo-inc.com>
#
# This file is part of cloud-init. See LICENSE file for license information.

import importlib
from types import ModuleType
from typing import Optional, Sequence

from cloudinit import util


def import_module(module_name: str) -> ModuleType:
    return importlib.import_module(module_name)


def _count_attrs(
    module_name: str, attrs: Optional[Sequence[str]] = None
) -> int:
    found_attrs = 0
    if not attrs:
        return found_attrs
    mod = importlib.import_module(module_name)
    for attr in attrs:
        if hasattr(mod, attr):
            found_attrs += 1
    return found_attrs


def match_case_insensitive_module_name(mod_name: str) -> Optional[str]:
    """Check the importable datasource modules for a case-insensitive match."""

    # nocloud-net is the only datasource that requires matching on a name that
    # does not match its python module - canonicalize it here
    if "nocloud-net" == mod_name.lower():
        mod_name = mod_name[:-4]
    if not mod_name.startswith("DataSource"):
        mod_name = f"DataSource{mod_name}"
    modules = {}
    spec = importlib.util.find_spec("cloudinit.sources")
    if spec and spec.submodule_search_locations:
        for dir in spec.submodule_search_locations:
            modules.update(util.get_modules_from_dir(dir))
        for module in modules.values():
            if module.lower() == mod_name.lower():
                return module
    return mod_name


def find_module(
    base_name: str,
    search_paths: Sequence[str],
    required_attrs: Optional[Sequence[str]] = None,
) -> tuple:
    """Finds specified modules"""
    if not required_attrs:
        required_attrs = []
    lookup_paths = []
    found_paths = []

    for path in search_paths:
        # Add base name to search paths. Filter out empty paths.
        full_path = ".".join(filter(None, [path, base_name]))
        lookup_paths.append(full_path)
        if not importlib.util.find_spec(full_path):
            continue
        # Check that required_attrs are all present within the module.
        if _count_attrs(full_path, required_attrs) == len(required_attrs):
            found_paths.append(full_path)
    return (found_paths, lookup_paths)

Name	Size	Perms	Modified	Actions
analyze DIR	-	drwxr-xr-x	2026-01-24 23:01:14	Edit Download recursive recursive
cmd DIR	-	drwxr-xr-x	2026-01-24 23:01:14	Edit Download recursive recursive
config DIR	-	drwxr-xr-x	2026-01-24 23:01:14	Edit Download recursive recursive
distros DIR	-	drwxr-xr-x	2026-01-24 23:01:14	Edit Download recursive recursive
filters DIR	-	drwxr-xr-x	2026-01-24 23:01:14	Edit Download recursive recursive
handlers DIR	-	drwxr-xr-x	2026-01-24 23:01:14	Edit Download recursive recursive
mergers DIR	-	drwxr-xr-x	2026-01-24 23:01:14	Edit Download recursive recursive
net DIR	-	drwxr-xr-x	2026-01-24 23:01:14	Edit Download recursive recursive
reporting DIR	-	drwxr-xr-x	2026-01-24 23:01:14	Edit Download recursive recursive
sources DIR	-	drwxr-xr-x	2026-01-24 23:01:14	Edit Download recursive recursive
__pycache__ DIR	-	drwxr-xr-x	2026-01-24 23:01:14	Edit Download recursive recursive
apport.py	7.05 KB	lrw-r--r--	2023-12-04 11:47:40	Edit Download recursive recursive
atomic_helper.py	2.45 KB	lrw-r--r--	2023-12-04 11:47:40	Edit Download recursive recursive
cloud.py	3.22 KB	lrw-r--r--	2023-12-04 11:47:40	Edit Download recursive recursive
dmi.py	6.77 KB	lrw-r--r--	2023-12-04 11:47:40	Edit Download recursive recursive
event.py	2.00 KB	lrw-r--r--	2023-12-04 11:47:40	Edit Download recursive recursive
features.py	3.38 KB	lrw-r--r--	2023-12-04 11:47:40	Edit Download recursive recursive
gpg.py	4.28 KB	lrw-r--r--	2023-12-04 11:47:40	Edit Download recursive recursive
helpers.py	16.41 KB	lrw-r--r--	2023-12-04 11:47:40	Edit Download recursive recursive
importer.py	2.43 KB	lrw-r--r--	2023-12-04 11:47:40	Edit Download recursive recursive
log.py	5.47 KB	lrw-r--r--	2023-12-04 11:47:40	Edit Download recursive recursive
netinfo.py	22.97 KB	lrw-r--r--	2023-12-04 11:47:40	Edit Download recursive recursive
persistence.py	2.52 KB	lrw-r--r--	2023-12-04 11:47:40	Edit Download recursive recursive
registry.py	1022 B	lrw-r--r--	2023-12-04 11:47:40	Edit Download recursive recursive
safeyaml.py	10.28 KB	lrw-r--r--	2023-12-04 11:47:40	Edit Download recursive recursive
settings.py	2.02 KB	lrw-r--r--	2026-01-23 08:56:46	Edit Download recursive recursive
signal_handler.py	1.74 KB	lrw-r--r--	2023-12-04 11:47:40	Edit Download recursive recursive
simpletable.py	1.93 KB	lrw-r--r--	2023-12-04 11:47:40	Edit Download recursive recursive
ssh_util.py	22.28 KB	lrw-r--r--	2026-01-23 08:56:47	Edit Download recursive recursive
stages.py	38.88 KB	lrw-r--r--	2026-01-23 08:56:46	Edit Download recursive recursive
subp.py	13.23 KB	lrw-r--r--	2023-12-04 11:47:40	Edit Download recursive recursive
templater.py	5.95 KB	lrw-r--r--	2023-12-04 11:47:40	Edit Download recursive recursive
temp_utils.py	3.15 KB	lrw-r--r--	2023-12-04 11:47:40	Edit Download recursive recursive
type_utils.py	703 B	lrw-r--r--	2023-12-04 11:47:40	Edit Download recursive recursive
url_helper.py	27.32 KB	lrw-r--r--	2023-12-04 11:47:40	Edit Download recursive recursive
user_data.py	14.43 KB	lrw-r--r--	2023-12-04 11:47:40	Edit Download recursive recursive
util.py	96.43 KB	lrw-r--r--	2023-12-04 11:47:40	Edit Download recursive recursive
version.py	566 B	lrw-r--r--	2026-01-23 08:56:50	Edit Download recursive recursive
warnings.py	3.76 KB	lrw-r--r--	2023-12-04 11:47:40	Edit Download recursive recursive
__init__.py	0 B	lrw-r--r--	2023-12-04 11:47:40	Edit Download recursive recursive

Directory Contents