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Editing: file_cache.cpython-38.pyc
U ��.e9 � @ s~ d dl Z d dlZd dlmZ ddlmZ ddlmZ ze W n e k rX e e fZY nX dd� Z G dd � d e�Z d d � ZdS ) � N)�dedent� )� BaseCache)�CacheControllerc C s� t j}|t jt jB O }tt d�r*|t jO }tt d�r>|t jO }zt �| � W n tt fk rd Y nX t � | ||�}zt � |d�W S t � |� � Y nX d S )N� O_NOFOLLOW�O_BINARY�wb) �os�O_WRONLY�O_CREAT�O_EXCL�hasattrr r �remove�IOError�OSError�open�fdopen�close)�filenameZfmode�flags�fd� r �N/usr/lib/python3.8/site-packages/pip/_vendor/cachecontrol/caches/file_cache.py�_secure_open_write s r c @ sB e Zd Zddd�Zedd� �Zd d � Zd d � Zd d� Zdd� Z dS )� FileCacheF� � Nc C s� |d k r|d k rt d��z ddlm} ddlm} W n$ tk rX td�} t| ��Y nX |rd|}n |d krp|}|| _|| _|| _ || _ || _ d S )Nz/Cannot use use_dir_lock and lock_class togetherr )�LockFile)� MkdirLockFilez� NOTE: In order to use the FileCache you must have lockfile installed. You can install it via pip: pip install lockfile ) � ValueErrorZlockfiler Zlockfile.mkdirlockfiler � ImportErrorr � directory�forever�filemode�dirmode� lock_class) �selfr! r" r# r$ Z use_dir_lockr% r r Znoticer r r �__init__: s& �zFileCache.__init__c C s t �| �� ��� S �N)�hashlibZsha224�encodeZ hexdigest)�xr r r r* a s zFileCache.encodec C s4 | � |�}t|d d� �|g }tjj| jf|�� S )N� )r* �listr �path�joinr! )r& �nameZhashed�partsr r r �_fne s z FileCache._fnc C sR | � |�}z,t|d��}|�� W 5 Q R � W S Q R X W n tk rL Y d S X d S )N�rb)r2 r �read�FileNotFoundError)r& �keyr0 �fhr r r �getl s z FileCache.getc C s| | � |�}zt�tj�|�| j� W n ttfk r< Y nX | �|��*}t |j| j ��}|� |� W 5 Q R X W 5 Q R X d S r( ) r2 r �makedirsr. �dirnamer$ r r r% r r# �write)r& r6 �valuer0 �lockr7 r r r �setu s z FileCache.setc C s8 | � |�}| js4zt�|� W n tk r2 Y nX d S r( )r2 r" r r r5 )r& r6 r0 r r r �delete� s zFileCache.delete)Fr r NN) �__name__� __module__� __qualname__r' � staticmethodr* r2 r8 r> r? r r r r r 8 s � ' r c C s t �| �}|�|�S )z\Return the file cache path based on the URL. This does not ensure the file exists! )r Z cache_urlr2 )ZurlZ filecacher6 r r r �url_to_file_path� s rD )r) r �textwrapr �cacher Z controllerr r5 � NameErrorr r r r rD r r r r �<module> s )T
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