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- import os
- import os.path
- from pip._internal.compat import get_path_uid
- def check_path_owner(path):
- # If we don't have a way to check the effective uid of this process, then
- # we'll just assume that we own the directory.
- if not hasattr(os, "geteuid"):
- return True
- previous = None
- while path != previous:
- if os.path.lexists(path):
- # Check if path is writable by current user.
- if os.geteuid() == 0:
- # Special handling for root user in order to handle properly
- # cases where users use sudo without -H flag.
- try:
- path_uid = get_path_uid(path)
- except OSError:
- return False
- return path_uid == 0
- else:
- return os.access(path, os.W_OK)
- else:
- previous, path = path, os.path.dirname(path)
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