Initial import from local backup (Documents-Playground/pakerpale)
This commit is contained in:
jeonghwa
193
.env/Lib/site-packages/pip/_internal/req/req_set.py
Normal file
193
.env/Lib/site-packages/pip/_internal/req/req_set.py
Normal file
@@ -0,0 +1,193 @@
|
||||
from __future__ import absolute_import
|
||||
|
||||
import logging
|
||||
from collections import OrderedDict
|
||||
|
||||
from pip._internal.exceptions import InstallationError
|
||||
from pip._internal.utils.logging import indent_log
|
||||
from pip._internal.utils.typing import MYPY_CHECK_RUNNING
|
||||
from pip._internal.wheel import Wheel
|
||||
|
||||
if MYPY_CHECK_RUNNING:
|
||||
from typing import Dict, Iterable, List, Optional, Tuple
|
||||
from pip._internal.req.req_install import InstallRequirement
|
||||
|
||||
|
||||
logger = logging.getLogger(__name__)
|
||||
|
||||
|
||||
class RequirementSet(object):
|
||||
|
||||
def __init__(self, require_hashes=False, check_supported_wheels=True):
|
||||
# type: (bool, bool) -> None
|
||||
"""Create a RequirementSet.
|
||||
"""
|
||||
|
||||
self.requirements = OrderedDict() # type: Dict[str, InstallRequirement] # noqa: E501
|
||||
self.require_hashes = require_hashes
|
||||
self.check_supported_wheels = check_supported_wheels
|
||||
|
||||
# Mapping of alias: real_name
|
||||
self.requirement_aliases = {} # type: Dict[str, str]
|
||||
self.unnamed_requirements = [] # type: List[InstallRequirement]
|
||||
self.successfully_downloaded = [] # type: List[InstallRequirement]
|
||||
self.reqs_to_cleanup = [] # type: List[InstallRequirement]
|
||||
|
||||
def __str__(self):
|
||||
# type: () -> str
|
||||
reqs = [req for req in self.requirements.values()
|
||||
if not req.comes_from]
|
||||
reqs.sort(key=lambda req: req.name.lower())
|
||||
return ' '.join([str(req.req) for req in reqs])
|
||||
|
||||
def __repr__(self):
|
||||
# type: () -> str
|
||||
reqs = [req for req in self.requirements.values()]
|
||||
reqs.sort(key=lambda req: req.name.lower())
|
||||
reqs_str = ', '.join([str(req.req) for req in reqs])
|
||||
return ('<%s object; %d requirement(s): %s>'
|
||||
% (self.__class__.__name__, len(reqs), reqs_str))
|
||||
|
||||
def add_requirement(
|
||||
self,
|
||||
install_req, # type: InstallRequirement
|
||||
parent_req_name=None, # type: Optional[str]
|
||||
extras_requested=None # type: Optional[Iterable[str]]
|
||||
):
|
||||
# type: (...) -> Tuple[List[InstallRequirement], Optional[InstallRequirement]] # noqa: E501
|
||||
"""Add install_req as a requirement to install.
|
||||
|
||||
:param parent_req_name: The name of the requirement that needed this
|
||||
added. The name is used because when multiple unnamed requirements
|
||||
resolve to the same name, we could otherwise end up with dependency
|
||||
links that point outside the Requirements set. parent_req must
|
||||
already be added. Note that None implies that this is a user
|
||||
supplied requirement, vs an inferred one.
|
||||
:param extras_requested: an iterable of extras used to evaluate the
|
||||
environment markers.
|
||||
:return: Additional requirements to scan. That is either [] if
|
||||
the requirement is not applicable, or [install_req] if the
|
||||
requirement is applicable and has just been added.
|
||||
"""
|
||||
name = install_req.name
|
||||
|
||||
# If the markers do not match, ignore this requirement.
|
||||
if not install_req.match_markers(extras_requested):
|
||||
logger.info(
|
||||
"Ignoring %s: markers '%s' don't match your environment",
|
||||
name, install_req.markers,
|
||||
)
|
||||
return [], None
|
||||
|
||||
# If the wheel is not supported, raise an error.
|
||||
# Should check this after filtering out based on environment markers to
|
||||
# allow specifying different wheels based on the environment/OS, in a
|
||||
# single requirements file.
|
||||
if install_req.link and install_req.link.is_wheel:
|
||||
wheel = Wheel(install_req.link.filename)
|
||||
if self.check_supported_wheels and not wheel.supported():
|
||||
raise InstallationError(
|
||||
"%s is not a supported wheel on this platform." %
|
||||
wheel.filename
|
||||
)
|
||||
|
||||
# This next bit is really a sanity check.
|
||||
assert install_req.is_direct == (parent_req_name is None), (
|
||||
"a direct req shouldn't have a parent and also, "
|
||||
"a non direct req should have a parent"
|
||||
)
|
||||
|
||||
# Unnamed requirements are scanned again and the requirement won't be
|
||||
# added as a dependency until after scanning.
|
||||
if not name:
|
||||
# url or path requirement w/o an egg fragment
|
||||
self.unnamed_requirements.append(install_req)
|
||||
return [install_req], None
|
||||
|
||||
try:
|
||||
existing_req = self.get_requirement(name)
|
||||
except KeyError:
|
||||
existing_req = None
|
||||
|
||||
has_conflicting_requirement = (
|
||||
parent_req_name is None and
|
||||
existing_req and
|
||||
not existing_req.constraint and
|
||||
existing_req.extras == install_req.extras and
|
||||
existing_req.req.specifier != install_req.req.specifier
|
||||
)
|
||||
if has_conflicting_requirement:
|
||||
raise InstallationError(
|
||||
"Double requirement given: %s (already in %s, name=%r)"
|
||||
% (install_req, existing_req, name)
|
||||
)
|
||||
|
||||
# When no existing requirement exists, add the requirement as a
|
||||
# dependency and it will be scanned again after.
|
||||
if not existing_req:
|
||||
self.requirements[name] = install_req
|
||||
# FIXME: what about other normalizations? E.g., _ vs. -?
|
||||
if name.lower() != name:
|
||||
self.requirement_aliases[name.lower()] = name
|
||||
# We'd want to rescan this requirements later
|
||||
return [install_req], install_req
|
||||
|
||||
# Assume there's no need to scan, and that we've already
|
||||
# encountered this for scanning.
|
||||
if install_req.constraint or not existing_req.constraint:
|
||||
return [], existing_req
|
||||
|
||||
does_not_satisfy_constraint = (
|
||||
install_req.link and
|
||||
not (
|
||||
existing_req.link and
|
||||
install_req.link.path == existing_req.link.path
|
||||
)
|
||||
)
|
||||
if does_not_satisfy_constraint:
|
||||
self.reqs_to_cleanup.append(install_req)
|
||||
raise InstallationError(
|
||||
"Could not satisfy constraints for '%s': "
|
||||
"installation from path or url cannot be "
|
||||
"constrained to a version" % name,
|
||||
)
|
||||
# If we're now installing a constraint, mark the existing
|
||||
# object for real installation.
|
||||
existing_req.constraint = False
|
||||
existing_req.extras = tuple(sorted(
|
||||
set(existing_req.extras) | set(install_req.extras)
|
||||
))
|
||||
logger.debug(
|
||||
"Setting %s extras to: %s",
|
||||
existing_req, existing_req.extras,
|
||||
)
|
||||
# Return the existing requirement for addition to the parent and
|
||||
# scanning again.
|
||||
return [existing_req], existing_req
|
||||
|
||||
def has_requirement(self, project_name):
|
||||
# type: (str) -> bool
|
||||
name = project_name.lower()
|
||||
if (name in self.requirements and
|
||||
not self.requirements[name].constraint or
|
||||
name in self.requirement_aliases and
|
||||
not self.requirements[self.requirement_aliases[name]].constraint):
|
||||
return True
|
||||
return False
|
||||
|
||||
def get_requirement(self, project_name):
|
||||
# type: (str) -> InstallRequirement
|
||||
for name in project_name, project_name.lower():
|
||||
if name in self.requirements:
|
||||
return self.requirements[name]
|
||||
if name in self.requirement_aliases:
|
||||
return self.requirements[self.requirement_aliases[name]]
|
||||
raise KeyError("No project with the name %r" % project_name)
|
||||
|
||||
def cleanup_files(self):
|
||||
# type: () -> None
|
||||
"""Clean up files, remove builds."""
|
||||
logger.debug('Cleaning up...')
|
||||
with indent_log():
|
||||
for req in self.reqs_to_cleanup:
|
||||
req.remove_temporary_source()
|
||||
Reference in New Issue
Block a user