463 lines
17 KiB
Python
463 lines
17 KiB
Python
|
"""Contains the Command base classes that depend on PipSession.
|
||
|
|
|
||
|
|
The classes in this module are in a separate module so the commands not
|
||
|
|
needing download / PackageFinder capability don't unnecessarily import the
|
||
|
|
PackageFinder machinery and all its vendored dependencies, etc.
|
||
|
|
"""
|
||
|
|
|
||
|
|
import logging
|
||
|
|
import os
|
||
|
|
import sys
|
||
|
|
from functools import partial
|
||
|
|
from optparse import Values
|
||
|
|
from typing import Any, List, Optional, Tuple
|
||
|
|
|
||
|
|
from pip._internal.cache import WheelCache
|
||
|
|
from pip._internal.cli import cmdoptions
|
||
|
|
from pip._internal.cli.base_command import Command
|
||
|
|
from pip._internal.cli.command_context import CommandContextMixIn
|
||
|
|
from pip._internal.exceptions import CommandError, PreviousBuildDirError
|
||
|
|
from pip._internal.index.collector import LinkCollector
|
||
|
|
from pip._internal.index.package_finder import PackageFinder
|
||
|
|
from pip._internal.models.selection_prefs import SelectionPreferences
|
||
|
|
from pip._internal.models.target_python import TargetPython
|
||
|
|
from pip._internal.network.session import PipSession
|
||
|
|
from pip._internal.operations.prepare import RequirementPreparer
|
||
|
|
from pip._internal.req.constructors import (
|
||
|
|
install_req_from_editable,
|
||
|
|
install_req_from_line,
|
||
|
|
install_req_from_parsed_requirement,
|
||
|
|
install_req_from_req_string,
|
||
|
|
)
|
||
|
|
from pip._internal.req.req_file import parse_requirements
|
||
|
|
from pip._internal.req.req_install import InstallRequirement
|
||
|
|
from pip._internal.req.req_tracker import RequirementTracker
|
||
|
|
from pip._internal.resolution.base import BaseResolver
|
||
|
|
from pip._internal.self_outdated_check import pip_self_version_check
|
||
|
|
from pip._internal.utils.temp_dir import (
|
||
|
|
TempDirectory,
|
||
|
|
TempDirectoryTypeRegistry,
|
||
|
|
tempdir_kinds,
|
||
|
|
)
|
||
|
|
from pip._internal.utils.virtualenv import running_under_virtualenv
|
||
|
|
|
||
|
|
logger = logging.getLogger(__name__)
|
||
|
|
|
||
|
|
|
||
|
|
class SessionCommandMixin(CommandContextMixIn):
|
||
|
|
|
||
|
|
"""
|
||
|
|
A class mixin for command classes needing _build_session().
|
||
|
|
"""
|
||
|
|
|
||
|
|
def __init__(self):
|
||
|
|
# type: () -> None
|
||
|
|
super().__init__()
|
||
|
|
self._session = None # Optional[PipSession]
|
||
|
|
|
||
|
|
@classmethod
|
||
|
|
def _get_index_urls(cls, options):
|
||
|
|
# type: (Values) -> Optional[List[str]]
|
||
|
|
"""Return a list of index urls from user-provided options."""
|
||
|
|
index_urls = []
|
||
|
|
if not getattr(options, "no_index", False):
|
||
|
|
url = getattr(options, "index_url", None)
|
||
|
|
if url:
|
||
|
|
index_urls.append(url)
|
||
|
|
urls = getattr(options, "extra_index_urls", None)
|
||
|
|
if urls:
|
||
|
|
index_urls.extend(urls)
|
||
|
|
# Return None rather than an empty list
|
||
|
|
return index_urls or None
|
||
|
|
|
||
|
|
def get_default_session(self, options):
|
||
|
|
# type: (Values) -> PipSession
|
||
|
|
"""Get a default-managed session."""
|
||
|
|
if self._session is None:
|
||
|
|
self._session = self.enter_context(self._build_session(options))
|
||
|
|
# there's no type annotation on requests.Session, so it's
|
||
|
|
# automatically ContextManager[Any] and self._session becomes Any,
|
||
|
|
# then https://github.com/python/mypy/issues/7696 kicks in
|
||
|
|
assert self._session is not None
|
||
|
|
return self._session
|
||
|
|
|
||
|
|
def _build_session(self, options, retries=None, timeout=None):
|
||
|
|
# type: (Values, Optional[int], Optional[int]) -> PipSession
|
||
|
|
assert not options.cache_dir or os.path.isabs(options.cache_dir)
|
||
|
|
session = PipSession(
|
||
|
|
cache=(
|
||
|
|
os.path.join(options.cache_dir, "http") if options.cache_dir else None
|
||
|
|
),
|
||
|
|
retries=retries if retries is not None else options.retries,
|
||
|
|
trusted_hosts=options.trusted_hosts,
|
||
|
|
index_urls=self._get_index_urls(options),
|
||
|
|
)
|
||
|
|
|
||
|
|
# Handle custom ca-bundles from the user
|
||
|
|
if options.cert:
|
||
|
|
session.verify = options.cert
|
||
|
|
|
||
|
|
# Handle SSL client certificate
|
||
|
|
if options.client_cert:
|
||
|
|
session.cert = options.client_cert
|
||
|
|
|
||
|
|
# Handle timeouts
|
||
|
|
if options.timeout or timeout:
|
||
|
|
session.timeout = timeout if timeout is not None else options.timeout
|
||
|
|
|
||
|
|
# Handle configured proxies
|
||
|
|
if options.proxy:
|
||
|
|
session.proxies = {
|
||
|
|
"http": options.proxy,
|
||
|
|
"https": options.proxy,
|
||
|
|
}
|
||
|
|
|
||
|
|
# Determine if we can prompt the user for authentication or not
|
||
|
|
session.auth.prompting = not options.no_input
|
||
|
|
|
||
|
|
return session
|
||
|
|
|
||
|
|
|
||
|
|
class IndexGroupCommand(Command, SessionCommandMixin):
|
||
|
|
|
||
|
|
"""
|
||
|
|
Abstract base class for commands with the index_group options.
|
||
|
|
|
||
|
|
This also corresponds to the commands that permit the pip version check.
|
||
|
|
"""
|
||
|
|
|
||
|
|
def handle_pip_version_check(self, options):
|
||
|
|
# type: (Values) -> None
|
||
|
|
"""
|
||
|
|
Do the pip version check if not disabled.
|
||
|
|
|
||
|
|
This overrides the default behavior of not doing the check.
|
||
|
|
"""
|
||
|
|
# Make sure the index_group options are present.
|
||
|
|
assert hasattr(options, "no_index")
|
||
|
|
|
||
|
|
if options.disable_pip_version_check or options.no_index:
|
||
|
|
return
|
||
|
|
|
||
|
|
# Otherwise, check if we're using the latest version of pip available.
|
||
|
|
session = self._build_session(
|
||
|
|
options, retries=0, timeout=min(5, options.timeout)
|
||
|
|
)
|
||
|
|
with session:
|
||
|
|
pip_self_version_check(session, options)
|
||
|
|
|
||
|
|
|
||
|
|
KEEPABLE_TEMPDIR_TYPES = [
|
||
|
|
tempdir_kinds.BUILD_ENV,
|
||
|
|
tempdir_kinds.EPHEM_WHEEL_CACHE,
|
||
|
|
tempdir_kinds.REQ_BUILD,
|
||
|
|
]
|
||
|
|
|
||
|
|
|
||
|
|
def warn_if_run_as_root():
|
||
|
|
# type: () -> None
|
||
|
|
"""Output a warning for sudo users on Unix.
|
||
|
|
|
||
|
|
In a virtual environment, sudo pip still writes to virtualenv.
|
||
|
|
On Windows, users may run pip as Administrator without issues.
|
||
|
|
This warning only applies to Unix root users outside of virtualenv.
|
||
|
|
"""
|
||
|
|
if running_under_virtualenv():
|
||
|
|
return
|
||
|
|
if not hasattr(os, "getuid"):
|
||
|
|
return
|
||
|
|
# On Windows, there are no "system managed" Python packages. Installing as
|
||
|
|
# Administrator via pip is the correct way of updating system environments.
|
||
|
|
#
|
||
|
|
# We choose sys.platform over utils.compat.WINDOWS here to enable Mypy platform
|
||
|
|
# checks: https://mypy.readthedocs.io/en/stable/common_issues.html
|
||
|
|
if sys.platform == "win32" or sys.platform == "cygwin":
|
||
|
|
return
|
||
|
|
if sys.platform == "darwin" or sys.platform == "linux":
|
||
|
|
if os.getuid() != 0:
|
||
|
|
return
|
||
|
|
logger.warning(
|
||
|
|
"Running pip as the 'root' user can result in broken permissions and "
|
||
|
|
"conflicting behaviour with the system package manager. "
|
||
|
|
"It is recommended to use a virtual environment instead: "
|
||
|
|
"https://pip.pypa.io/warnings/venv"
|
||
|
|
)
|
||
|
|
|
||
|
|
|
||
|
|
def with_cleanup(func):
|
||
|
|
# type: (Any) -> Any
|
||
|
|
"""Decorator for common logic related to managing temporary
|
||
|
|
directories.
|
||
|
|
"""
|
||
|
|
|
||
|
|
def configure_tempdir_registry(registry):
|
||
|
|
# type: (TempDirectoryTypeRegistry) -> None
|
||
|
|
for t in KEEPABLE_TEMPDIR_TYPES:
|
||
|
|
registry.set_delete(t, False)
|
||
|
|
|
||
|
|
def wrapper(self, options, args):
|
||
|
|
# type: (RequirementCommand, Values, List[Any]) -> Optional[int]
|
||
|
|
assert self.tempdir_registry is not None
|
||
|
|
if options.no_clean:
|
||
|
|
configure_tempdir_registry(self.tempdir_registry)
|
||
|
|
|
||
|
|
try:
|
||
|
|
return func(self, options, args)
|
||
|
|
except PreviousBuildDirError:
|
||
|
|
# This kind of conflict can occur when the user passes an explicit
|
||
|
|
# build directory with a pre-existing folder. In that case we do
|
||
|
|
# not want to accidentally remove it.
|
||
|
|
configure_tempdir_registry(self.tempdir_registry)
|
||
|
|
raise
|
||
|
|
|
||
|
|
return wrapper
|
||
|
|
|
||
|
|
|
||
|
|
class RequirementCommand(IndexGroupCommand):
|
||
|
|
def __init__(self, *args, **kw):
|
||
|
|
# type: (Any, Any) -> None
|
||
|
|
super().__init__(*args, **kw)
|
||
|
|
|
||
|
|
self.cmd_opts.add_option(cmdoptions.no_clean())
|
||
|
|
|
||
|
|
@staticmethod
|
||
|
|
def determine_resolver_variant(options):
|
||
|
|
# type: (Values) -> str
|
||
|
|
"""Determines which resolver should be used, based on the given options."""
|
||
|
|
if "legacy-resolver" in options.deprecated_features_enabled:
|
||
|
|
return "legacy"
|
||
|
|
|
||
|
|
return "2020-resolver"
|
||
|
|
|
||
|
|
@classmethod
|
||
|
|
def make_requirement_preparer(
|
||
|
|
cls,
|
||
|
|
temp_build_dir, # type: TempDirectory
|
||
|
|
options, # type: Values
|
||
|
|
req_tracker, # type: RequirementTracker
|
||
|
|
session, # type: PipSession
|
||
|
|
finder, # type: PackageFinder
|
||
|
|
use_user_site, # type: bool
|
||
|
|
download_dir=None, # type: str
|
||
|
|
):
|
||
|
|
# type: (...) -> RequirementPreparer
|
||
|
|
"""
|
||
|
|
Create a RequirementPreparer instance for the given parameters.
|
||
|
|
"""
|
||
|
|
temp_build_dir_path = temp_build_dir.path
|
||
|
|
assert temp_build_dir_path is not None
|
||
|
|
|
||
|
|
resolver_variant = cls.determine_resolver_variant(options)
|
||
|
|
if resolver_variant == "2020-resolver":
|
||
|
|
lazy_wheel = "fast-deps" in options.features_enabled
|
||
|
|
if lazy_wheel:
|
||
|
|
logger.warning(
|
||
|
|
"pip is using lazily downloaded wheels using HTTP "
|
||
|
|
"range requests to obtain dependency information. "
|
||
|
|
"This experimental feature is enabled through "
|
||
|
|
"--use-feature=fast-deps and it is not ready for "
|
||
|
|
"production."
|
||
|
|
)
|
||
|
|
else:
|
||
|
|
lazy_wheel = False
|
||
|
|
if "fast-deps" in options.features_enabled:
|
||
|
|
logger.warning(
|
||
|
|
"fast-deps has no effect when used with the legacy resolver."
|
||
|
|
)
|
||
|
|
|
||
|
|
return RequirementPreparer(
|
||
|
|
build_dir=temp_build_dir_path,
|
||
|
|
src_dir=options.src_dir,
|
||
|
|
download_dir=download_dir,
|
||
|
|
build_isolation=options.build_isolation,
|
||
|
|
req_tracker=req_tracker,
|
||
|
|
session=session,
|
||
|
|
progress_bar=options.progress_bar,
|
||
|
|
finder=finder,
|
||
|
|
require_hashes=options.require_hashes,
|
||
|
|
use_user_site=use_user_site,
|
||
|
|
lazy_wheel=lazy_wheel,
|
||
|
|
in_tree_build="in-tree-build" in options.features_enabled,
|
||
|
|
)
|
||
|
|
|
||
|
|
@classmethod
|
||
|
|
def make_resolver(
|
||
|
|
cls,
|
||
|
|
preparer, # type: RequirementPreparer
|
||
|
|
finder, # type: PackageFinder
|
||
|
|
options, # type: Values
|
||
|
|
wheel_cache=None, # type: Optional[WheelCache]
|
||
|
|
use_user_site=False, # type: bool
|
||
|
|
ignore_installed=True, # type: bool
|
||
|
|
ignore_requires_python=False, # type: bool
|
||
|
|
force_reinstall=False, # type: bool
|
||
|
|
upgrade_strategy="to-satisfy-only", # type: str
|
||
|
|
use_pep517=None, # type: Optional[bool]
|
||
|
|
py_version_info=None, # type: Optional[Tuple[int, ...]]
|
||
|
|
):
|
||
|
|
# type: (...) -> BaseResolver
|
||
|
|
"""
|
||
|
|
Create a Resolver instance for the given parameters.
|
||
|
|
"""
|
||
|
|
make_install_req = partial(
|
||
|
|
install_req_from_req_string,
|
||
|
|
isolated=options.isolated_mode,
|
||
|
|
use_pep517=use_pep517,
|
||
|
|
)
|
||
|
|
resolver_variant = cls.determine_resolver_variant(options)
|
||
|
|
# The long import name and duplicated invocation is needed to convince
|
||
|
|
# Mypy into correctly typechecking. Otherwise it would complain the
|
||
|
|
# "Resolver" class being redefined.
|
||
|
|
if resolver_variant == "2020-resolver":
|
||
|
|
import pip._internal.resolution.resolvelib.resolver
|
||
|
|
|
||
|
|
return pip._internal.resolution.resolvelib.resolver.Resolver(
|
||
|
|
preparer=preparer,
|
||
|
|
finder=finder,
|
||
|
|
wheel_cache=wheel_cache,
|
||
|
|
make_install_req=make_install_req,
|
||
|
|
use_user_site=use_user_site,
|
||
|
|
ignore_dependencies=options.ignore_dependencies,
|
||
|
|
ignore_installed=ignore_installed,
|
||
|
|
ignore_requires_python=ignore_requires_python,
|
||
|
|
force_reinstall=force_reinstall,
|
||
|
|
upgrade_strategy=upgrade_strategy,
|
||
|
|
py_version_info=py_version_info,
|
||
|
|
)
|
||
|
|
import pip._internal.resolution.legacy.resolver
|
||
|
|
|
||
|
|
return pip._internal.resolution.legacy.resolver.Resolver(
|
||
|
|
preparer=preparer,
|
||
|
|
finder=finder,
|
||
|
|
wheel_cache=wheel_cache,
|
||
|
|
make_install_req=make_install_req,
|
||
|
|
use_user_site=use_user_site,
|
||
|
|
ignore_dependencies=options.ignore_dependencies,
|
||
|
|
ignore_installed=ignore_installed,
|
||
|
|
ignore_requires_python=ignore_requires_python,
|
||
|
|
force_reinstall=force_reinstall,
|
||
|
|
upgrade_strategy=upgrade_strategy,
|
||
|
|
py_version_info=py_version_info,
|
||
|
|
)
|
||
|
|
|
||
|
|
def get_requirements(
|
||
|
|
self,
|
||
|
|
args, # type: List[str]
|
||
|
|
options, # type: Values
|
||
|
|
finder, # type: PackageFinder
|
||
|
|
session, # type: PipSession
|
||
|
|
):
|
||
|
|
# type: (...) -> List[InstallRequirement]
|
||
|
|
"""
|
||
|
|
Parse command-line arguments into the corresponding requirements.
|
||
|
|
"""
|
||
|
|
requirements = [] # type: List[InstallRequirement]
|
||
|
|
for filename in options.constraints:
|
||
|
|
for parsed_req in parse_requirements(
|
||
|
|
filename,
|
||
|
|
constraint=True,
|
||
|
|
finder=finder,
|
||
|
|
options=options,
|
||
|
|
session=session,
|
||
|
|
):
|
||
|
|
req_to_add = install_req_from_parsed_requirement(
|
||
|
|
parsed_req,
|
||
|
|
isolated=options.isolated_mode,
|
||
|
|
user_supplied=False,
|
||
|
|
)
|
||
|
|
requirements.append(req_to_add)
|
||
|
|
|
||
|
|
for req in args:
|
||
|
|
req_to_add = install_req_from_line(
|
||
|
|
req,
|
||
|
|
None,
|
||
|
|
isolated=options.isolated_mode,
|
||
|
|
use_pep517=options.use_pep517,
|
||
|
|
user_supplied=True,
|
||
|
|
)
|
||
|
|
requirements.append(req_to_add)
|
||
|
|
|
||
|
|
for req in options.editables:
|
||
|
|
req_to_add = install_req_from_editable(
|
||
|
|
req,
|
||
|
|
user_supplied=True,
|
||
|
|
isolated=options.isolated_mode,
|
||
|
|
use_pep517=options.use_pep517,
|
||
|
|
)
|
||
|
|
requirements.append(req_to_add)
|
||
|
|
|
||
|
|
# NOTE: options.require_hashes may be set if --require-hashes is True
|
||
|
|
for filename in options.requirements:
|
||
|
|
for parsed_req in parse_requirements(
|
||
|
|
filename, finder=finder, options=options, session=session
|
||
|
|
):
|
||
|
|
req_to_add = install_req_from_parsed_requirement(
|
||
|
|
parsed_req,
|
||
|
|
isolated=options.isolated_mode,
|
||
|
|
use_pep517=options.use_pep517,
|
||
|
|
user_supplied=True,
|
||
|
|
)
|
||
|
|
requirements.append(req_to_add)
|
||
|
|
|
||
|
|
# If any requirement has hash options, enable hash checking.
|
||
|
|
if any(req.has_hash_options for req in requirements):
|
||
|
|
options.require_hashes = True
|
||
|
|
|
||
|
|
if not (args or options.editables or options.requirements):
|
||
|
|
opts = {"name": self.name}
|
||
|
|
if options.find_links:
|
||
|
|
raise CommandError(
|
||
|
|
"You must give at least one requirement to {name} "
|
||
|
|
'(maybe you meant "pip {name} {links}"?)'.format(
|
||
|
|
**dict(opts, links=" ".join(options.find_links))
|
||
|
|
)
|
||
|
|
)
|
||
|
|
else:
|
||
|
|
raise CommandError(
|
||
|
|
"You must give at least one requirement to {name} "
|
||
|
|
'(see "pip help {name}")'.format(**opts)
|
||
|
|
)
|
||
|
|
|
||
|
|
return requirements
|
||
|
|
|
||
|
|
@staticmethod
|
||
|
|
def trace_basic_info(finder):
|
||
|
|
# type: (PackageFinder) -> None
|
||
|
|
"""
|
||
|
|
Trace basic information about the provided objects.
|
||
|
|
"""
|
||
|
|
# Display where finder is looking for packages
|
||
|
|
search_scope = finder.search_scope
|
||
|
|
locations = search_scope.get_formatted_locations()
|
||
|
|
if locations:
|
||
|
|
logger.info(locations)
|
||
|
|
|
||
|
|
def _build_package_finder(
|
||
|
|
self,
|
||
|
|
options, # type: Values
|
||
|
|
session, # type: PipSession
|
||
|
|
target_python=None, # type: Optional[TargetPython]
|
||
|
|
ignore_requires_python=None, # type: Optional[bool]
|
||
|
|
):
|
||
|
|
# type: (...) -> PackageFinder
|
||
|
|
"""
|
||
|
|
Create a package finder appropriate to this requirement command.
|
||
|
|
|
||
|
|
:param ignore_requires_python: Whether to ignore incompatible
|
||
|
|
"Requires-Python" values in links. Defaults to False.
|
||
|
|
"""
|
||
|
|
link_collector = LinkCollector.create(session, options=options)
|
||
|
|
selection_prefs = SelectionPreferences(
|
||
|
|
allow_yanked=True,
|
||
|
|
format_control=options.format_control,
|
||
|
|
allow_all_prereleases=options.pre,
|
||
|
|
prefer_binary=options.prefer_binary,
|
||
|
|
ignore_requires_python=ignore_requires_python,
|
||
|
|
)
|
||
|
|
|
||
|
|
return PackageFinder.create(
|
||
|
|
link_collector=link_collector,
|
||
|
|
selection_prefs=selection_prefs,
|
||
|
|
target_python=target_python,
|
||
|
|
)
|