You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
82 lines
2.5 KiB
82 lines
2.5 KiB
1 year ago
|
import functools
|
||
|
|
import os
|
||
|
|
import site
|
||
|
|
import sys
|
||
|
|
import sysconfig
|
||
|
|
import typing
|
||
|
|
|
||
|
|
from pip._internal.exceptions import InstallationError
|
||
|
|
from pip._internal.utils import appdirs
|
||
|
|
from pip._internal.utils.virtualenv import running_under_virtualenv
|
||
|
|
|
||
|
|
# Application Directories
|
||
|
|
USER_CACHE_DIR = appdirs.user_cache_dir("pip")
|
||
|
|
|
||
|
|
# FIXME doesn't account for venv linked to global site-packages
|
||
|
|
site_packages: str = sysconfig.get_path("purelib")
|
||
|
|
|
||
|
|
|
||
|
|
def get_major_minor_version() -> str:
|
||
|
|
"""
|
||
|
|
Return the major-minor version of the current Python as a string, e.g.
|
||
|
|
"3.7" or "3.10".
|
||
|
|
"""
|
||
|
|
return "{}.{}".format(*sys.version_info)
|
||
|
|
|
||
|
|
|
||
|
|
def change_root(new_root: str, pathname: str) -> str:
|
||
|
|
"""Return 'pathname' with 'new_root' prepended.
|
||
|
|
|
||
|
|
If 'pathname' is relative, this is equivalent to os.path.join(new_root, pathname).
|
||
|
|
Otherwise, it requires making 'pathname' relative and then joining the
|
||
|
|
two, which is tricky on DOS/Windows and Mac OS.
|
||
|
|
|
||
|
|
This is borrowed from Python's standard library's distutils module.
|
||
|
|
"""
|
||
|
|
if os.name == "posix":
|
||
|
|
if not os.path.isabs(pathname):
|
||
|
|
return os.path.join(new_root, pathname)
|
||
|
|
else:
|
||
|
|
return os.path.join(new_root, pathname[1:])
|
||
|
|
|
||
|
|
elif os.name == "nt":
|
||
|
|
(drive, path) = os.path.splitdrive(pathname)
|
||
|
|
if path[0] == "\\":
|
||
|
|
path = path[1:]
|
||
|
|
return os.path.join(new_root, path)
|
||
|
|
|
||
|
|
else:
|
||
|
|
raise InstallationError(
|
||
|
|
f"Unknown platform: {os.name}\n"
|
||
|
|
"Can not change root path prefix on unknown platform."
|
||
|
|
)
|
||
|
|
|
||
|
|
|
||
|
|
def get_src_prefix() -> str:
|
||
|
|
if running_under_virtualenv():
|
||
|
|
src_prefix = os.path.join(sys.prefix, "src")
|
||
|
|
else:
|
||
|
|
# FIXME: keep src in cwd for now (it is not a temporary folder)
|
||
|
|
try:
|
||
|
|
src_prefix = os.path.join(os.getcwd(), "src")
|
||
|
|
except OSError:
|
||
|
|
# In case the current working directory has been renamed or deleted
|
||
|
|
sys.exit("The folder you are executing pip from can no longer be found.")
|
||
|
|
|
||
|
|
# under macOS + virtualenv sys.prefix is not properly resolved
|
||
|
|
# it is something like /path/to/python/bin/..
|
||
|
|
return os.path.abspath(src_prefix)
|
||
|
|
|
||
|
|
|
||
|
|
try:
|
||
|
|
# Use getusersitepackages if this is present, as it ensures that the
|
||
|
|
# value is initialised properly.
|
||
|
|
user_site: typing.Optional[str] = site.getusersitepackages()
|
||
|
|
except AttributeError:
|
||
|
|
user_site = site.USER_SITE
|
||
|
|
|
||
|
|
|
||
|
|
@functools.lru_cache(maxsize=None)
|
||
|
|
def is_osx_framework() -> bool:
|
||
|
|
return bool(sysconfig.get_config_var("PYTHONFRAMEWORK"))
|