331 lines
11 KiB
Python
331 lines
11 KiB
Python
|
import email.message
|
||
|
|
import json
|
||
|
|
import logging
|
||
|
|
import re
|
||
|
|
import zipfile
|
||
|
|
from typing import (
|
||
|
|
IO,
|
||
|
|
TYPE_CHECKING,
|
||
|
|
Collection,
|
||
|
|
Container,
|
||
|
|
Iterable,
|
||
|
|
Iterator,
|
||
|
|
List,
|
||
|
|
Optional,
|
||
|
|
Union,
|
||
|
|
)
|
||
|
|
|
||
|
|
from pip._vendor.packaging.requirements import Requirement
|
||
|
|
from pip._vendor.packaging.specifiers import InvalidSpecifier, SpecifierSet
|
||
|
|
from pip._vendor.packaging.utils import NormalizedName
|
||
|
|
from pip._vendor.packaging.version import LegacyVersion, Version
|
||
|
|
|
||
|
|
from pip._internal.models.direct_url import (
|
||
|
|
DIRECT_URL_METADATA_NAME,
|
||
|
|
DirectUrl,
|
||
|
|
DirectUrlValidationError,
|
||
|
|
)
|
||
|
|
from pip._internal.utils.compat import stdlib_pkgs # TODO: Move definition here.
|
||
|
|
from pip._internal.utils.egg_link import egg_link_path_from_sys_path
|
||
|
|
from pip._internal.utils.urls import url_to_path
|
||
|
|
|
||
|
|
if TYPE_CHECKING:
|
||
|
|
from typing import Protocol
|
||
|
|
else:
|
||
|
|
Protocol = object
|
||
|
|
|
||
|
|
DistributionVersion = Union[LegacyVersion, Version]
|
||
|
|
|
||
|
|
logger = logging.getLogger(__name__)
|
||
|
|
|
||
|
|
|
||
|
|
class BaseEntryPoint(Protocol):
|
||
|
|
@property
|
||
|
|
def name(self) -> str:
|
||
|
|
raise NotImplementedError()
|
||
|
|
|
||
|
|
@property
|
||
|
|
def value(self) -> str:
|
||
|
|
raise NotImplementedError()
|
||
|
|
|
||
|
|
@property
|
||
|
|
def group(self) -> str:
|
||
|
|
raise NotImplementedError()
|
||
|
|
|
||
|
|
|
||
|
|
class BaseDistribution(Protocol):
|
||
|
|
def __repr__(self) -> str:
|
||
|
|
return f"{self.raw_name} {self.version} ({self.location})"
|
||
|
|
|
||
|
|
def __str__(self) -> str:
|
||
|
|
return f"{self.raw_name} {self.version}"
|
||
|
|
|
||
|
|
@property
|
||
|
|
def location(self) -> Optional[str]:
|
||
|
|
"""Where the distribution is loaded from.
|
||
|
|
|
||
|
|
A string value is not necessarily a filesystem path, since distributions
|
||
|
|
can be loaded from other sources, e.g. arbitrary zip archives. ``None``
|
||
|
|
means the distribution is created in-memory.
|
||
|
|
|
||
|
|
Do not canonicalize this value with e.g. ``pathlib.Path.resolve()``. If
|
||
|
|
this is a symbolic link, we want to preserve the relative path between
|
||
|
|
it and files in the distribution.
|
||
|
|
"""
|
||
|
|
raise NotImplementedError()
|
||
|
|
|
||
|
|
@property
|
||
|
|
def editable_project_location(self) -> Optional[str]:
|
||
|
|
"""The project location for editable distributions.
|
||
|
|
|
||
|
|
This is the directory where pyproject.toml or setup.py is located.
|
||
|
|
None if the distribution is not installed in editable mode.
|
||
|
|
"""
|
||
|
|
# TODO: this property is relatively costly to compute, memoize it ?
|
||
|
|
direct_url = self.direct_url
|
||
|
|
if direct_url:
|
||
|
|
if direct_url.is_local_editable():
|
||
|
|
return url_to_path(direct_url.url)
|
||
|
|
else:
|
||
|
|
# Search for an .egg-link file by walking sys.path, as it was
|
||
|
|
# done before by dist_is_editable().
|
||
|
|
egg_link_path = egg_link_path_from_sys_path(self.raw_name)
|
||
|
|
if egg_link_path:
|
||
|
|
# TODO: get project location from second line of egg_link file
|
||
|
|
# (https://github.com/pypa/pip/issues/10243)
|
||
|
|
return self.location
|
||
|
|
return None
|
||
|
|
|
||
|
|
@property
|
||
|
|
def info_directory(self) -> Optional[str]:
|
||
|
|
"""Location of the .[egg|dist]-info directory.
|
||
|
|
|
||
|
|
Similarly to ``location``, a string value is not necessarily a
|
||
|
|
filesystem path. ``None`` means the distribution is created in-memory.
|
||
|
|
|
||
|
|
For a modern .dist-info installation on disk, this should be something
|
||
|
|
like ``{location}/{raw_name}-{version}.dist-info``.
|
||
|
|
|
||
|
|
Do not canonicalize this value with e.g. ``pathlib.Path.resolve()``. If
|
||
|
|
this is a symbolic link, we want to preserve the relative path between
|
||
|
|
it and other files in the distribution.
|
||
|
|
"""
|
||
|
|
raise NotImplementedError()
|
||
|
|
|
||
|
|
@property
|
||
|
|
def canonical_name(self) -> NormalizedName:
|
||
|
|
raise NotImplementedError()
|
||
|
|
|
||
|
|
@property
|
||
|
|
def version(self) -> DistributionVersion:
|
||
|
|
raise NotImplementedError()
|
||
|
|
|
||
|
|
@property
|
||
|
|
def direct_url(self) -> Optional[DirectUrl]:
|
||
|
|
"""Obtain a DirectUrl from this distribution.
|
||
|
|
|
||
|
|
Returns None if the distribution has no `direct_url.json` metadata,
|
||
|
|
or if `direct_url.json` is invalid.
|
||
|
|
"""
|
||
|
|
try:
|
||
|
|
content = self.read_text(DIRECT_URL_METADATA_NAME)
|
||
|
|
except FileNotFoundError:
|
||
|
|
return None
|
||
|
|
try:
|
||
|
|
return DirectUrl.from_json(content)
|
||
|
|
except (
|
||
|
|
UnicodeDecodeError,
|
||
|
|
json.JSONDecodeError,
|
||
|
|
DirectUrlValidationError,
|
||
|
|
) as e:
|
||
|
|
logger.warning(
|
||
|
|
"Error parsing %s for %s: %s",
|
||
|
|
DIRECT_URL_METADATA_NAME,
|
||
|
|
self.canonical_name,
|
||
|
|
e,
|
||
|
|
)
|
||
|
|
return None
|
||
|
|
|
||
|
|
@property
|
||
|
|
def installer(self) -> str:
|
||
|
|
raise NotImplementedError()
|
||
|
|
|
||
|
|
@property
|
||
|
|
def editable(self) -> bool:
|
||
|
|
return bool(self.editable_project_location)
|
||
|
|
|
||
|
|
@property
|
||
|
|
def local(self) -> bool:
|
||
|
|
raise NotImplementedError()
|
||
|
|
|
||
|
|
@property
|
||
|
|
def in_usersite(self) -> bool:
|
||
|
|
raise NotImplementedError()
|
||
|
|
|
||
|
|
@property
|
||
|
|
def in_site_packages(self) -> bool:
|
||
|
|
raise NotImplementedError()
|
||
|
|
|
||
|
|
def read_text(self, name: str) -> str:
|
||
|
|
"""Read a file in the .dist-info (or .egg-info) directory.
|
||
|
|
|
||
|
|
Should raise ``FileNotFoundError`` if ``name`` does not exist in the
|
||
|
|
metadata directory.
|
||
|
|
"""
|
||
|
|
raise NotImplementedError()
|
||
|
|
|
||
|
|
def iter_entry_points(self) -> Iterable[BaseEntryPoint]:
|
||
|
|
raise NotImplementedError()
|
||
|
|
|
||
|
|
@property
|
||
|
|
def metadata(self) -> email.message.Message:
|
||
|
|
"""Metadata of distribution parsed from e.g. METADATA or PKG-INFO."""
|
||
|
|
raise NotImplementedError()
|
||
|
|
|
||
|
|
@property
|
||
|
|
def metadata_version(self) -> Optional[str]:
|
||
|
|
"""Value of "Metadata-Version:" in distribution metadata, if available."""
|
||
|
|
return self.metadata.get("Metadata-Version")
|
||
|
|
|
||
|
|
@property
|
||
|
|
def raw_name(self) -> str:
|
||
|
|
"""Value of "Name:" in distribution metadata."""
|
||
|
|
# The metadata should NEVER be missing the Name: key, but if it somehow
|
||
|
|
# does, fall back to the known canonical name.
|
||
|
|
return self.metadata.get("Name", self.canonical_name)
|
||
|
|
|
||
|
|
@property
|
||
|
|
def requires_python(self) -> SpecifierSet:
|
||
|
|
"""Value of "Requires-Python:" in distribution metadata.
|
||
|
|
|
||
|
|
If the key does not exist or contains an invalid value, an empty
|
||
|
|
SpecifierSet should be returned.
|
||
|
|
"""
|
||
|
|
value = self.metadata.get("Requires-Python")
|
||
|
|
if value is None:
|
||
|
|
return SpecifierSet()
|
||
|
|
try:
|
||
|
|
# Convert to str to satisfy the type checker; this can be a Header object.
|
||
|
|
spec = SpecifierSet(str(value))
|
||
|
|
except InvalidSpecifier as e:
|
||
|
|
message = "Package %r has an invalid Requires-Python: %s"
|
||
|
|
logger.warning(message, self.raw_name, e)
|
||
|
|
return SpecifierSet()
|
||
|
|
return spec
|
||
|
|
|
||
|
|
def iter_dependencies(self, extras: Collection[str] = ()) -> Iterable[Requirement]:
|
||
|
|
"""Dependencies of this distribution.
|
||
|
|
|
||
|
|
For modern .dist-info distributions, this is the collection of
|
||
|
|
"Requires-Dist:" entries in distribution metadata.
|
||
|
|
"""
|
||
|
|
raise NotImplementedError()
|
||
|
|
|
||
|
|
def iter_provided_extras(self) -> Iterable[str]:
|
||
|
|
"""Extras provided by this distribution.
|
||
|
|
|
||
|
|
For modern .dist-info distributions, this is the collection of
|
||
|
|
"Provides-Extra:" entries in distribution metadata.
|
||
|
|
"""
|
||
|
|
raise NotImplementedError()
|
||
|
|
|
||
|
|
|
||
|
|
class BaseEnvironment:
|
||
|
|
"""An environment containing distributions to introspect."""
|
||
|
|
|
||
|
|
@classmethod
|
||
|
|
def default(cls) -> "BaseEnvironment":
|
||
|
|
raise NotImplementedError()
|
||
|
|
|
||
|
|
@classmethod
|
||
|
|
def from_paths(cls, paths: Optional[List[str]]) -> "BaseEnvironment":
|
||
|
|
raise NotImplementedError()
|
||
|
|
|
||
|
|
def get_distribution(self, name: str) -> Optional["BaseDistribution"]:
|
||
|
|
"""Given a requirement name, return the installed distributions."""
|
||
|
|
raise NotImplementedError()
|
||
|
|
|
||
|
|
def _iter_distributions(self) -> Iterator["BaseDistribution"]:
|
||
|
|
"""Iterate through installed distributions.
|
||
|
|
|
||
|
|
This function should be implemented by subclass, but never called
|
||
|
|
directly. Use the public ``iter_distribution()`` instead, which
|
||
|
|
implements additional logic to make sure the distributions are valid.
|
||
|
|
"""
|
||
|
|
raise NotImplementedError()
|
||
|
|
|
||
|
|
def iter_distributions(self) -> Iterator["BaseDistribution"]:
|
||
|
|
"""Iterate through installed distributions."""
|
||
|
|
for dist in self._iter_distributions():
|
||
|
|
# Make sure the distribution actually comes from a valid Python
|
||
|
|
# packaging distribution. Pip's AdjacentTempDirectory leaves folders
|
||
|
|
# e.g. ``~atplotlib.dist-info`` if cleanup was interrupted. The
|
||
|
|
# valid project name pattern is taken from PEP 508.
|
||
|
|
project_name_valid = re.match(
|
||
|
|
r"^([A-Z0-9]|[A-Z0-9][A-Z0-9._-]*[A-Z0-9])$",
|
||
|
|
dist.canonical_name,
|
||
|
|
flags=re.IGNORECASE,
|
||
|
|
)
|
||
|
|
if not project_name_valid:
|
||
|
|
logger.warning(
|
||
|
|
"Ignoring invalid distribution %s (%s)",
|
||
|
|
dist.canonical_name,
|
||
|
|
dist.location,
|
||
|
|
)
|
||
|
|
continue
|
||
|
|
yield dist
|
||
|
|
|
||
|
|
def iter_installed_distributions(
|
||
|
|
self,
|
||
|
|
local_only: bool = True,
|
||
|
|
skip: Container[str] = stdlib_pkgs,
|
||
|
|
include_editables: bool = True,
|
||
|
|
editables_only: bool = False,
|
||
|
|
user_only: bool = False,
|
||
|
|
) -> Iterator[BaseDistribution]:
|
||
|
|
"""Return a list of installed distributions.
|
||
|
|
|
||
|
|
:param local_only: If True (default), only return installations
|
||
|
|
local to the current virtualenv, if in a virtualenv.
|
||
|
|
:param skip: An iterable of canonicalized project names to ignore;
|
||
|
|
defaults to ``stdlib_pkgs``.
|
||
|
|
:param include_editables: If False, don't report editables.
|
||
|
|
:param editables_only: If True, only report editables.
|
||
|
|
:param user_only: If True, only report installations in the user
|
||
|
|
site directory.
|
||
|
|
"""
|
||
|
|
it = self.iter_distributions()
|
||
|
|
if local_only:
|
||
|
|
it = (d for d in it if d.local)
|
||
|
|
if not include_editables:
|
||
|
|
it = (d for d in it if not d.editable)
|
||
|
|
if editables_only:
|
||
|
|
it = (d for d in it if d.editable)
|
||
|
|
if user_only:
|
||
|
|
it = (d for d in it if d.in_usersite)
|
||
|
|
return (d for d in it if d.canonical_name not in skip)
|
||
|
|
|
||
|
|
|
||
|
|
class Wheel(Protocol):
|
||
|
|
location: str
|
||
|
|
|
||
|
|
def as_zipfile(self) -> zipfile.ZipFile:
|
||
|
|
raise NotImplementedError()
|
||
|
|
|
||
|
|
|
||
|
|
class FilesystemWheel(Wheel):
|
||
|
|
def __init__(self, location: str) -> None:
|
||
|
|
self.location = location
|
||
|
|
|
||
|
|
def as_zipfile(self) -> zipfile.ZipFile:
|
||
|
|
return zipfile.ZipFile(self.location, allowZip64=True)
|
||
|
|
|
||
|
|
|
||
|
|
class MemoryWheel(Wheel):
|
||
|
|
def __init__(self, location: str, stream: IO[bytes]) -> None:
|
||
|
|
self.location = location
|
||
|
|
self.stream = stream
|
||
|
|
|
||
|
|
def as_zipfile(self) -> zipfile.ZipFile:
|
||
|
|
return zipfile.ZipFile(self.stream, allowZip64=True)
|