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    .e                     @   s   d dl m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
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mZ d dlmZmZ eeZG dd deZd	d
 ZdS )    )absolute_importN)Command)ERROR)FAVORITE_HASHSTRONG_HASHES)read_chunkswrite_outputc                       s0   e Zd ZdZdZdZ fddZdd Z  ZS )HashCommandz
    Compute a hash of a local package archive.

    These can be used with --hash in a requirements file to do repeatable
    installs.
    z%prog [options] <file> ...Tc                    sJ   t t| j|| | jjdddtdtddt d | j	d| j d S )	Nz-az--algorithm	algorithmZstorez$The hash algorithm to use: one of %sz, )destchoicesactiondefaulthelpr   )
superr	   __init__Zcmd_optsZ
add_optionr   r   joinparserZinsert_option_group)selfargskw	__class__ ?/usr/lib/python3.8/site-packages/pip/_internal/commands/hash.pyr      s     zHashCommand.__init__c                 C   s>   |s| j tj tS |j}|D ]}td||t|| q d S )Nz%s:
--hash=%s:%s)r   Zprint_usagesysstderrr   r
   r   _hash_of_file)r   Zoptionsr   r
   pathr   r   r   run)   s      zHashCommand.run)	__name__
__module____qualname____doc__ZusageZignore_require_venvr   r   __classcell__r   r   r   r   r	      s
   r	   c              	   C   s@   t | d(}t|}t|D ]}|| qW 5 Q R X | S )z!Return the hash digest of a file.rb)openhashlibnewr   updateZ	hexdigest)r   r
   archivehashchunkr   r   r   r   4   s
    
r   )Z
__future__r   r'   Zloggingr   Zpip._internal.cli.base_commandr   Zpip._internal.cli.status_codesr   Zpip._internal.utils.hashesr   r   Zpip._internal.utils.miscr   r   Z	getLoggerr    Zloggerr	   r   r   r   r   r   <module>   s   
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