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o ;jn � @ sb d Z ddlZddlZddlZG dd� dej�Zddd�Zdd d �Zdd d �Zd d� Z ddd�Z dS )zp salt.utils.gzip ~~~~~~~~~~~~~~~ Helper module for handling gzip consistently between 2.7+ and 2.6- � Nc @ s& e Zd Zd dd�Zdd� Zdd� ZdS ) �GzipFileN� c C s t j�| ||||� d S )N)�gzipr �__init__)�self�filename�mode� compresslevel�fileobj� r �H/opt/saltstack/salt/lib/python3.10/site-packages/salt/utils/gzip_util.pyr s zGzipFile.__init__c C s | S )z+Context management protocol. Returns self.r )r r r r � __enter__ s zGzipFile.__enter__c G s | � � dS )z+Context management protocol. Calls close()N)�close)r �argsr r r �__exit__ s zGzipFile.__exit__)NNr N)�__name__� __module__� __qualname__r r r r r r r r s r �rbr c C s& t tjd�r t�| ||�S t| ||�S )Nr )�hasattrr r �open)r r r r r r r s r c C s. t tjd�rtjd|| |d�S td|| |d�S )Nr � )r r r r )r r r )r r r r r r � open_fileobj" s ��r c C s^ t �� }t|d|��}t| t�s| �t�} |�| � W d � n1 s$w Y |�� }|S )z@ Returns the data compressed at gzip level compression. �wbN) �io�BytesIOr � isinstance�bytes�encodeZ__salt_system_encoding__�write�getvalue)�datar �buf�ogz� compressedr r r �compress, s �r% c C sD t �| �}t|d��}|�� }|W d � S 1 sw Y d S )Nr )r r r �read)r! r" ZigzZuncr r r � uncompress9 s $�r' � c c s � z t |�}||kr t�W n ty td��w z^||kret�� }t|d|��,}z |�| �|��}W n tyL tj j � | d�} |�| �|��}Y nw W d � n1 sWw Y |� � V ||ks W z| � � W dS tyw Y dS w z| � � W w ty� Y w w )a� Generator that reads chunk_size bytes at a time from a file/filehandle and yields the compressed result of each read. .. note:: Each chunk is compressed separately. They cannot be stitched together to form a compressed file. This function is designed to break up a file into compressed chunks for transport and decompression/reassembly on a remote host. z chunk_size must be an integerr r N)�int� ValueErrorr r r r r& �AttributeError�salt�utils�filesZfopenr r )Zfh_r Z chunk_sizeZ bytes_readr" r# r r r � compress_file@ sD � � � �� � �� �� �r/ )r r )r )r r( ) �__doc__r r Zsalt.utils.filesr, r r r r% r' r/ r r r r �<module> s
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