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    yh                     @   sD   d Z ddlZddlmZmZ ddlmZ dgZdd Zdd
dZ	dS )z
Move a file in the safest way possible::

    >>> from django.core.files.move import file_move_safe
    >>> file_move_safe("/tmp/old_file", "/tmp/new_file")
    N)copymodecopystat)locksfile_move_safec                 C   s\   t tjdr4ztj| |W S  tk
r2   Y dS X tjtj| tjtj|kS )NsamefileF)hasattrospathr   OSErrornormcaseabspath)srcdst r   ^/var/www/dating/data/www/fatepal.com/env/lib/python3.8/site-packages/django/core/files/move.py	_samefile   s    
r      Fc                 C   s  t | |rdS z0|s.t|tjr.td| t| | W dS  tk
rR   Y nX t| d}t|tjtj	B t
tddB |stjndB tjB }z6t|tj d}|dkr||}t|| qW 5 t| t| X W 5 Q R X zt| | W n< tk
r6   zt| | W n tk
r0   Y nX Y nX zt|  W n8 tk
r~ } zt
|dddkrn W 5 d}~X Y nX dS )	aU  
    Move a file from one location to another in the safest way possible.

    First, try ``os.rename``, which is simple but will break across filesystems.
    If that fails, stream manually from one file to another in pure Python.

    If the destination file exists and ``allow_overwrite`` is ``False``, raise
    ``FileExistsError``.
    Nz8Destination file %s exists and allow_overwrite is False.rbO_BINARYr       winerror    )r   r   accessF_OKFileExistsErrorrenamer
   openO_WRONLYO_CREATgetattrO_EXCLO_TRUNCr   unlockcloselockZLOCK_EXreadwriter   PermissionErrorr   remove)Zold_file_nameZnew_file_name
chunk_sizeZallow_overwriteZold_filefdZcurrent_chunker   r   r   r      s\    




)r   F)
__doc__r   shutilr   r   Zdjango.core.filesr   __all__r   r   r   r   r   r   <module>   s      