243 lines
8.0 KiB
Python
243 lines
8.0 KiB
Python
import datetime
|
|
import functools
|
|
import hashlib
|
|
import json
|
|
import logging
|
|
import optparse
|
|
import os.path
|
|
import sys
|
|
from dataclasses import dataclass
|
|
from typing import Any, Callable, Dict, Optional
|
|
|
|
from pip._vendor.packaging.version import parse as parse_version
|
|
from pip._vendor.rich.console import Group
|
|
from pip._vendor.rich.markup import escape
|
|
from pip._vendor.rich.text import Text
|
|
|
|
from pip._internal.index.collector import LinkCollector
|
|
from pip._internal.index.package_finder import PackageFinder
|
|
from pip._internal.metadata import get_default_environment
|
|
from pip._internal.metadata.base import DistributionVersion
|
|
from pip._internal.models.selection_prefs import SelectionPreferences
|
|
from pip._internal.network.session import PipSession
|
|
from pip._internal.utils.compat import WINDOWS
|
|
from pip._internal.utils.entrypoints import (
|
|
get_best_invocation_for_this_pip,
|
|
get_best_invocation_for_this_python,
|
|
)
|
|
from pip._internal.utils.filesystem import adjacent_tmp_file, check_path_owner, replace
|
|
from pip._internal.utils.misc import ensure_dir
|
|
|
|
_DATE_FMT = "%Y-%m-%dT%H:%M:%SZ"
|
|
|
|
|
|
logger = logging.getLogger(__name__)
|
|
|
|
|
|
def _get_statefile_name(key: str) -> str:
|
|
key_bytes = key.encode()
|
|
name = hashlib.sha224(key_bytes).hexdigest()
|
|
return name
|
|
|
|
|
|
class SelfCheckState:
|
|
def __init__(self, cache_dir: str) -> None:
|
|
self._state: Dict[str, Any] = {}
|
|
self._statefile_path = None
|
|
|
|
# Try to load the existing state
|
|
if cache_dir:
|
|
self._statefile_path = os.path.join(
|
|
cache_dir, "selfcheck", _get_statefile_name(self.key)
|
|
)
|
|
try:
|
|
with open(self._statefile_path, encoding="utf-8") as statefile:
|
|
self._state = json.load(statefile)
|
|
except (OSError, ValueError, KeyError):
|
|
# Explicitly suppressing exceptions, since we don't want to
|
|
# error out if the cache file is invalid.
|
|
pass
|
|
|
|
@property
|
|
def key(self) -> str:
|
|
return sys.prefix
|
|
|
|
def get(self, current_time: datetime.datetime) -> Optional[str]:
|
|
"""Check if we have a not-outdated version loaded already."""
|
|
if not self._state:
|
|
return None
|
|
|
|
if "last_check" not in self._state:
|
|
return None
|
|
|
|
if "pypi_version" not in self._state:
|
|
return None
|
|
|
|
seven_days_in_seconds = 7 * 24 * 60 * 60
|
|
|
|
# Determine if we need to refresh the state
|
|
last_check = datetime.datetime.strptime(self._state["last_check"], _DATE_FMT)
|
|
seconds_since_last_check = (current_time - last_check).total_seconds()
|
|
if seconds_since_last_check > seven_days_in_seconds:
|
|
return None
|
|
|
|
return self._state["pypi_version"]
|
|
|
|
def set(self, pypi_version: str, current_time: datetime.datetime) -> None:
|
|
# If we do not have a path to cache in, don't bother saving.
|
|
if not self._statefile_path:
|
|
return
|
|
|
|
# Check to make sure that we own the directory
|
|
if not check_path_owner(os.path.dirname(self._statefile_path)):
|
|
return
|
|
|
|
# Now that we've ensured the directory is owned by this user, we'll go
|
|
# ahead and make sure that all our directories are created.
|
|
ensure_dir(os.path.dirname(self._statefile_path))
|
|
|
|
state = {
|
|
# Include the key so it's easy to tell which pip wrote the
|
|
# file.
|
|
"key": self.key,
|
|
"last_check": current_time.strftime(_DATE_FMT),
|
|
"pypi_version": pypi_version,
|
|
}
|
|
|
|
text = json.dumps(state, sort_keys=True, separators=(",", ":"))
|
|
|
|
with adjacent_tmp_file(self._statefile_path) as f:
|
|
f.write(text.encode())
|
|
|
|
try:
|
|
# Since we have a prefix-specific state file, we can just
|
|
# overwrite whatever is there, no need to check.
|
|
replace(f.name, self._statefile_path)
|
|
except OSError:
|
|
# Best effort.
|
|
pass
|
|
|
|
|
|
@dataclass
|
|
class UpgradePrompt:
|
|
old: str
|
|
new: str
|
|
|
|
def __rich__(self) -> Group:
|
|
if WINDOWS:
|
|
pip_cmd = f"{get_best_invocation_for_this_python()} -m pip"
|
|
else:
|
|
pip_cmd = get_best_invocation_for_this_pip()
|
|
|
|
notice = "[bold][[reset][blue]notice[reset][bold]][reset]"
|
|
return Group(
|
|
Text(),
|
|
Text.from_markup(
|
|
f"{notice} A new release of pip is available: "
|
|
f"[red]{self.old}[reset] -> [green]{self.new}[reset]"
|
|
),
|
|
Text.from_markup(
|
|
f"{notice} To update, run: "
|
|
f"[green]{escape(pip_cmd)} install --upgrade pip"
|
|
),
|
|
)
|
|
|
|
|
|
def was_installed_by_pip(pkg: str) -> bool:
|
|
"""Checks whether pkg was installed by pip
|
|
|
|
This is used not to display the upgrade message when pip is in fact
|
|
installed by system package manager, such as dnf on Fedora.
|
|
"""
|
|
dist = get_default_environment().get_distribution(pkg)
|
|
return dist is not None and "pip" == dist.installer
|
|
|
|
|
|
def _get_current_remote_pip_version(
|
|
session: PipSession, options: optparse.Values
|
|
) -> Optional[str]:
|
|
# Lets use PackageFinder to see what the latest pip version is
|
|
link_collector = LinkCollector.create(
|
|
session,
|
|
options=options,
|
|
suppress_no_index=True,
|
|
)
|
|
|
|
# Pass allow_yanked=False so we don't suggest upgrading to a
|
|
# yanked version.
|
|
selection_prefs = SelectionPreferences(
|
|
allow_yanked=False,
|
|
allow_all_prereleases=False, # Explicitly set to False
|
|
)
|
|
|
|
finder = PackageFinder.create(
|
|
link_collector=link_collector,
|
|
selection_prefs=selection_prefs,
|
|
)
|
|
best_candidate = finder.find_best_candidate("pip").best_candidate
|
|
if best_candidate is None:
|
|
return None
|
|
|
|
return str(best_candidate.version)
|
|
|
|
|
|
def _self_version_check_logic(
|
|
*,
|
|
state: SelfCheckState,
|
|
current_time: datetime.datetime,
|
|
local_version: DistributionVersion,
|
|
get_remote_version: Callable[[], Optional[str]],
|
|
) -> Optional[UpgradePrompt]:
|
|
remote_version_str = state.get(current_time)
|
|
if remote_version_str is None:
|
|
remote_version_str = get_remote_version()
|
|
if remote_version_str is None:
|
|
logger.debug("No remote pip version found")
|
|
return None
|
|
state.set(remote_version_str, current_time)
|
|
|
|
remote_version = parse_version(remote_version_str)
|
|
logger.debug("Remote version of pip: %s", remote_version)
|
|
logger.debug("Local version of pip: %s", local_version)
|
|
|
|
pip_installed_by_pip = was_installed_by_pip("pip")
|
|
logger.debug("Was pip installed by pip? %s", pip_installed_by_pip)
|
|
if not pip_installed_by_pip:
|
|
return None # Only suggest upgrade if pip is installed by pip.
|
|
|
|
local_version_is_older = (
|
|
local_version < remote_version
|
|
and local_version.base_version != remote_version.base_version
|
|
)
|
|
if local_version_is_older:
|
|
return UpgradePrompt(old=str(local_version), new=remote_version_str)
|
|
|
|
return None
|
|
|
|
|
|
def pip_self_version_check(session: PipSession, options: optparse.Values) -> None:
|
|
"""Check for an update for pip.
|
|
|
|
Limit the frequency of checks to once per week. State is stored either in
|
|
the active virtualenv or in the user's USER_CACHE_DIR keyed off the prefix
|
|
of the pip script path.
|
|
"""
|
|
installed_dist = get_default_environment().get_distribution("pip")
|
|
if not installed_dist:
|
|
return
|
|
|
|
try:
|
|
upgrade_prompt = _self_version_check_logic(
|
|
state=SelfCheckState(cache_dir=options.cache_dir),
|
|
current_time=datetime.datetime.utcnow(),
|
|
local_version=installed_dist.version,
|
|
get_remote_version=functools.partial(
|
|
_get_current_remote_pip_version, session, options
|
|
),
|
|
)
|
|
if upgrade_prompt is not None:
|
|
logger.warning("[present-rich] %s", upgrade_prompt)
|
|
except Exception:
|
|
logger.warning("There was an error checking the latest version of pip.")
|
|
logger.debug("See below for error", exc_info=True)
|