blob: a31957b6724f07d8eff3840f3e3fdd8817ed86d3 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
|
# (c) 2020 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 os
import pkgutil
import sys
import warnings
# This package exists to host vendored top-level Python packages for downstream packaging. Any Python packages
# installed beneath this one will be masked from the Ansible loader, and available from the front of sys.path.
# It is expected that the vendored packages will be loaded very early, so a warning will be fired on import of
# the top-level ansible package if any packages beneath this are already loaded at that point.
#
# Python packages may be installed here during downstream packaging using something like:
# pip install --upgrade -t (path to this dir) cryptography pyyaml packaging jinja2
# mask vendored content below this package from being accessed as an ansible subpackage
__path__ = []
def _ensure_vendored_path_entry():
"""
Ensure that any downstream-bundled content beneath this package is available at the top of sys.path
"""
# patch our vendored dir onto sys.path
vendored_path_entry = os.path.dirname(__file__)
vendored_module_names = set(m[1] for m in pkgutil.iter_modules([vendored_path_entry], '')) # m[1] == m.name
if vendored_module_names:
# patch us early to load vendored deps transparently
if vendored_path_entry in sys.path:
# handle reload case by removing the existing entry, wherever it might be
sys.path.remove(vendored_path_entry)
sys.path.insert(0, vendored_path_entry)
already_loaded_vendored_modules = set(sys.modules.keys()).intersection(vendored_module_names)
if already_loaded_vendored_modules:
warnings.warn('One or more Python packages bundled by this ansible-core distribution were already '
'loaded ({0}). This may result in undefined behavior.'.format(', '.join(sorted(already_loaded_vendored_modules))))
_ensure_vendored_path_entry()
|
