U
    P^                     @   s   d dl Z d dlZ d dlZd dlZd dlmZ d dlmZ d dlm	Z	 d dl
mZ d dlmZ d dlmZ d dlmZ erd d	lmZmZ G d
d deZdd Zdd Zdd Zedd Ze	dddZeredd Zn
ee jZdS )    N)contextmanager)NamedTemporaryFile)retry)PY2)get_path_uid)cast)MYPY_CHECK_RUNNING)BinaryIOIteratorc                   @   s   e Zd Zedd ZdS )NamedTemporaryFileResultc                 C   s   d S N )selfr   r   ?/tmp/pip-install-220asx0h/pip/pip/_internal/utils/filesystem.pyfile   s    zNamedTemporaryFileResult.fileN)__name__
__module____qualname__propertyr   r   r   r   r   r      s   r   c                 C   s   t tdsdS d }| |krtj| rnt dkr^zt| }W n tk
rT   Y dS X |dkS t| tjS q| tj	|  }} qdS )NgeteuidTr   F)
hasattrospathlexistsr   r   OSErroraccessW_OKdirname)r   previouspath_uidr   r   r   check_path_owner   s    
r    c                 C   sr   zt | | W n\ ttfk
rl   | |fD ]8}zt|}W n tk
rP   Y q,X |r,t d| q, Y nX dS )zWrap shutil.copy2() but map errors copying socket files to
    SpecialFileError as expected.

    See also https://bugs.python.org/issue37700.
    z`%s` is a socketN)shutilcopy2r   IOError	is_socketSpecialFileError)srcdestfZis_socket_filer   r   r   copy2_fixed5   s    r)   c                 C   s   t t| jS r   )statS_ISSOCKr   lstatst_mode)r   r   r   r   r$   M   s    r$   c                 c   sb   t dtj| tj| dd8}td|}z
|V  W 5 |j  t|j	  X W 5 Q R X dS )zGiven a path to a file, open a temp file next to it securely and ensure
    it is written to disk after the context reaches its end.
    Fz.tmp)deletedirprefixsuffixr   N)
r   r   r   r   basenamer   r   flushfsyncfileno)r   r(   resultr   r   r   adjacent_tmp_fileR   s    




r7   i     )stop_max_delay
wait_fixedc                 C   s@   zt | | W n* tk
r:   t | t | | Y nX d S r   )r   renamer   remove)r&   r'   r   r   r   replacei   s
    
r=   )r   os.pathr!   r*   
contextlibr   tempfiler   pip._vendor.retryingr   pip._vendor.sixr   pip._internal.utils.compatr   pip._internal.utils.miscr   pip._internal.utils.typingr   typingr	   r
   r   r    r)   r$   r7   Z_replace_retryr=   r   r   r   r   <module>   s.   
	