python-pip/remove-existing-dist-only-if-path-conflicts.patch
2021-02-17 10:26:08 +01:00

132 lines
5.3 KiB
Diff

From f83eacf40f1506418e74d747906b8f108401f91d Mon Sep 17 00:00:00 2001
From: Lumir Balhar <lbalhar@redhat.com>
Date: Tue, 26 Jan 2021 09:05:07 +0100
Subject: [PATCH] Prevent removing of the system packages installed under
/usr/lib
when pip install -U is executed.
Resolves: rhbz#1550368
Co-Authored-By: Michal Cyprian <m.cyprian@gmail.com>
Co-Authored-By: Victor Stinner <vstinner@redhat.com>
Co-Authored-By: Petr Viktorin <pviktori@redhat.com>
---
src/pip/_internal/req/req_install.py | 3 ++-
src/pip/_internal/resolution/legacy/resolver.py | 5 ++++-
src/pip/_internal/resolution/resolvelib/factory.py | 10 ++++++++++
src/pip/_internal/utils/misc.py | 11 +++++++++++
4 files changed, 27 insertions(+), 2 deletions(-)
diff --git a/src/pip/_internal/req/req_install.py b/src/pip/_internal/req/req_install.py
index 6d0aa30..0a5f8ed 100644
--- a/src/pip/_internal/req/req_install.py
+++ b/src/pip/_internal/req/req_install.py
@@ -39,6 +39,7 @@ from pip._internal.utils.misc import (
ask_path_exists,
backup_dir,
display_path,
+ dist_in_install_path,
dist_in_site_packages,
dist_in_usersite,
get_distribution,
@@ -445,7 +446,7 @@ class InstallRequirement:
"lack sys.path precedence to {} in {}".format(
existing_dist.project_name, existing_dist.location)
)
- else:
+ elif dist_in_install_path(existing_dist):
self.should_reinstall = True
else:
if self.editable:
diff --git a/src/pip/_internal/resolution/legacy/resolver.py b/src/pip/_internal/resolution/legacy/resolver.py
index 665dba1..a219e63 100644
--- a/src/pip/_internal/resolution/legacy/resolver.py
+++ b/src/pip/_internal/resolution/legacy/resolver.py
@@ -34,6 +34,7 @@ from pip._internal.resolution.base import BaseResolver
from pip._internal.utils.compatibility_tags import get_supported
from pip._internal.utils.logging import indent_log
from pip._internal.utils.misc import dist_in_usersite, normalize_version_info
+from pip._internal.utils.misc import dist_in_install_path
from pip._internal.utils.packaging import check_requires_python, get_requires_python
from pip._internal.utils.typing import MYPY_CHECK_RUNNING
@@ -204,7 +205,9 @@ class Resolver(BaseResolver):
"""
# Don't uninstall the conflict if doing a user install and the
# conflict is not a user install.
- if not self.use_user_site or dist_in_usersite(req.satisfied_by):
+ if ((not self.use_user_site
+ or dist_in_usersite(req.satisfied_by))
+ and dist_in_install_path(req.satisfied_by)):
req.should_reinstall = True
req.satisfied_by = None
diff --git a/src/pip/_internal/resolution/resolvelib/factory.py b/src/pip/_internal/resolution/resolvelib/factory.py
index be0729e..bc2912b 100644
--- a/src/pip/_internal/resolution/resolvelib/factory.py
+++ b/src/pip/_internal/resolution/resolvelib/factory.py
@@ -1,5 +1,6 @@
import functools
import logging
+import sys
from pip._vendor.packaging.utils import canonicalize_name
@@ -19,7 +20,9 @@ from pip._internal.utils.misc import (
dist_in_site_packages,
dist_in_usersite,
get_installed_distributions,
+ dist_location,
)
+from pip._internal.locations import distutils_scheme
from pip._internal.utils.typing import MYPY_CHECK_RUNNING
from pip._internal.utils.virtualenv import running_under_virtualenv
@@ -362,6 +365,13 @@ class Factory:
if dist is None: # Not installed, no uninstallation required.
return None
+ # Prevent uninstalling packages from /usr
+ if dist_location(dist) in (
+ distutils_scheme('', prefix=sys.base_prefix)['purelib'],
+ distutils_scheme('', prefix=sys.base_prefix)['platlib'],
+ ):
+ return None
+
# We're installing into global site. The current installation must
# be uninstalled, no matter it's in global or user site, because the
# user site installation has precedence over global.
diff --git a/src/pip/_internal/utils/misc.py b/src/pip/_internal/utils/misc.py
index 6dd94e2..7925518 100644
--- a/src/pip/_internal/utils/misc.py
+++ b/src/pip/_internal/utils/misc.py
@@ -27,6 +27,7 @@ from pip._vendor.retrying import retry # type: ignore
from pip import __version__
from pip._internal.exceptions import CommandError
from pip._internal.locations import get_major_minor_version, site_packages, user_site
+from pip._internal.locations import distutils_scheme, get_major_minor_version, site_packages, user_site
from pip._internal.utils.compat import WINDOWS, stdlib_pkgs
from pip._internal.utils.typing import MYPY_CHECK_RUNNING, cast
from pip._internal.utils.virtualenv import (
@@ -398,6 +399,16 @@ def dist_in_site_packages(dist):
return dist_location(dist).startswith(normalize_path(site_packages))
+def dist_in_install_path(dist):
+ """
+ Return True if given Distribution is installed in
+ path matching distutils_scheme layout.
+ """
+ norm_path = normalize_path(dist_location(dist))
+ return norm_path.startswith(normalize_path(
+ distutils_scheme("")['purelib'].split('python')[0]))
+
+
def dist_is_editable(dist):
# type: (Distribution) -> bool
"""
--
2.29.2