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
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
|
from __future__ import annotations
import os
from pathlib import Path
from typing import Iterable
from typing import Iterator
from . import _entrypoints
from . import _log
from . import _types as _t
from ._config import Configuration
log = _log.log.getChild("discover")
def walk_potential_roots(root: _t.PathT, search_parents: bool = True) -> Iterator[Path]:
"""
Iterate though a path and each of its parents.
:param root: File path.
:param search_parents: If ``False`` the parents are not considered.
"""
root = Path(root)
yield root
if search_parents:
yield from root.parents
def match_entrypoint(root: _t.PathT, name: str) -> bool:
"""
Consider a ``root`` as entry-point.
:param root: File path.
:param name: Subdirectory name.
:return: ``True`` if a subdirectory ``name`` exits in ``root``.
"""
if os.path.exists(os.path.join(root, name)):
if not os.path.isabs(name):
return True
log.debug("ignoring bad ep %s", name)
return False
def iter_matching_entrypoints(
root: _t.PathT, entrypoint: str, config: Configuration
) -> Iterable[_entrypoints.EntrypointProtocol]:
"""
Consider different entry-points in ``root`` and optionally its parents.
:param root: File path.
:param entrypoint: Entry-point to consider.
:param config: Configuration,
read ``search_parent_directories``, write found parent to ``parent``.
"""
log.debug("looking for ep %s in %s", entrypoint, root)
from ._entrypoints import iter_entry_points
for wd in walk_potential_roots(root, config.search_parent_directories):
for ep in iter_entry_points(entrypoint):
if match_entrypoint(wd, ep.name):
log.debug("found ep %s in %s", ep, wd)
config.parent = wd
yield ep
|
