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librsync.cpython-310.pyc
o �~�_(" � @ s� d Z ddlmZ ddlmZ ddlZddlZddlZddlmZ ej � d�dkr5ddl Z ddl Z e � � e _ejZG d d � d e�ZG d d � d e�ZG d d� de�ZG dd� de�ZG dd� de�ZG dd� de�ZdS )z�Provides a high-level interface to some librsync functions This is a python wrapper around the lower-level _librsync module, which is written in C. The goal was to use C as little as possible... � )�object)�strN� )� _librsync� READTHEDOCS�Truec @ s e Zd ZdZdS )� librsyncErrora/ Signifies error in internal librsync processing (bad signature, etc.) underlying _librsync.librsyncError's are regenerated using this class because the C-created exceptions are by default unPickleable. There is probably a way to fix this in _librsync, but this scheme was easier. N)�__name__� __module__� __qualname__�__doc__� r r �4/usr/lib/python3/dist-packages/duplicity/librsync.pyr . s r c @ sN e Zd ZdZdZdZddd�Zddd�Zdd d �Zd d � Z d d� Z dd� Z dS )�LikeFilez:File-like object used by SigFile, DeltaFile, and PatchFile�rbNc C s@ | � ||� || _d | _| _d| _t�d�| _d | _| _dS )z1LikeFile initializer - zero buffers, set eofs offN� �b) � check_file�infile�closed� infile_closed�inbuf�array�outbuf�eof� infile_eof)�selfr � need_seekr r r �__init__B s zLikeFile.__init__c C sB t |d�s td��t |d�std��|r t |d�s td��dS dS )z:Raise type error if file doesn't have necessary attributes�readz$Basis file must have a read() method�closez%Basis file must have a close() method�seekz$Basis file must have a seek() methodN)�hasattr� TypeError)r �filer r r r r K s �zLikeFile.check_file���c C s� |dkr| j s| �� | j rt| j�}n | j s,t| j�|k r,| �� | j s,t| j�|k s t|t| j��}tjjdkrD| jd|� �� }n | jd|� � � }| jd|�= |S )z/Build up self.outbuf, return first length bytesr% � N) r �_add_to_outbuf_once�lenr �min�sys� version_info�major�tobytes�tostring)r �length�real_len� return_valr r r r T s � � z LikeFile.readc C s� | j s| �� z | j�| j�\| _}}W n tjy' } ztt|���d}~ww | j|d� | _t j j dkr>| j � |� dS | j �|� dS )z.Add one cycle's worth of output to self.outbufNr& )r � _add_to_inbuf�maker�cycler r r r r r* r+ r, r � frombytes� fromstring)r �len_inbuf_read� cycle_out�er r r r' f s �� z LikeFile._add_to_outbuf_oncec C sj | j rJ �t| j�tk r3| j�t�}|s#d| _ | j�� r J �d| _dS | j|7 _t| j�tk s dS dS )z&Make sure len(self.inbuf) >= blocksizer N)r r( r � blocksizer r r r )r �new_inr r r r2 t s �zLikeFile._add_to_inbufc C s | j s | j�� r J �d| _dS )z Close infiler N)r r r r �r r r r r � s zLikeFile.close)N)r% ) r r r r �moder3 r r r r' r2 r r r r r r : s r c @ s e Zd ZdZejfdd�ZdS )�SigFilezCFile-like object which incrementally generates a librsync signaturec C sF t �| |� z t�|�| _W dS tjy" } ztt|���d}~ww )z�SigFile initializer - takes basis file basis file only needs to have read() and close() methods. It will be closed when we come to the end of the signature. N)r r r � new_sigmakerr3 r r )r r r: r9 r r r r � s ��zSigFile.__init__N)r r r r r �RS_DEFAULT_BLOCK_LENr r r r r r> � s r> c @ � e Zd ZdZdd� ZdS )� DeltaFilez?File-like object which incrementally generates a librsync deltac C st t �| |� t|t�r|}n| �|� |�� }|�� r J �z t�|�| _ W dS tj y9 } zt t |���d}~ww )a DeltaFile initializer - call with signature and new file Signature can either be a string or a file with read() and close() methods. New_file also only needs to have read() and close() methods. It will be closed when self is closed. N) r r � isinstance�bytesr r r r �new_deltamakerr3 r r )r � signature�new_file� sig_stringr9 r r r r � s ��zDeltaFile.__init__N�r r r r r r r r r rB � � rB c @ rA )� PatchedFilez=File-like object which applies a librsync delta incrementallyc C s� t �| |� z|�� W n t|d�r t|jd�r |j}nttd���Y z t�|�| _ W dS tj yC } zt t |���d}~ww )z�PatchedFile initializer - call with basis delta Here basis_file must be a true Python file, because we may need to seek() around in it a lot, and this is done in C. delta_file only needs read() and close() methods. r$ �filenozebasis_file must be a (true) file or an object whose file attribute is the underlying true file objectN) r r rL r" r$ r# �_r �new_patchmakerr3 r r )r � basis_file� delta_filer9 r r r r � s � ��zPatchedFile.__init__NrI r r r r rK � rJ rK c @ s6 e Zd ZdZejfdd�Zdd� Zdd� Zdd � Z d S ) � SigGeneratorz�Calculate signature. Input and output is same as SigFile, but the interface is like md5 module, not filelike object c C sN zt �|�| _W n t jy } ztt|���d}~ww d| _d| _g | _dS )z Return new signature instanceNr )r r? � sig_makerr r �gotsig�buffer�sigstring_list)r r: r9 r r r r � s �� zSigGenerator.__init__c C sP | j rtd��| j|7 _t| j�tkr&| �� r td��t| j�tksdS dS )z6Add buf to data that signature will be calculated overz'SigGenerator already provided signaturez%Premature EOF received from sig_makerN)rS r rT r( r: �process_buffer)r �bufr r r �update� s �zSigGenerator.updatec C s` z | j �| j�\}}}W n tjy } ztt|���d}~ww | j|d� | _| j�|� |S )z9Run self.buffer through sig_maker, add to self.sig_stringN)rR r4 rT r r r rU �append)r r � len_buf_readr8 r9 r r r rV � s �� zSigGenerator.process_bufferc C s | � � s | � � rd�| j�S )z Return signature over given datar )rV �joinrU r< r r r �getsig� s � zSigGenerator.getsigN) r r r r r r@ r rX rV r\ r r r r rQ � s rQ )r �builtinsr r r �osr* � r �environ�get�mock� duplicity� MagicMock�RS_JOB_BLOCKSIZEr: � Exceptionr r r> rB rK rQ r r r r �<module> s$ M
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__init__.cpython-310.pyc
344 bytes
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asyncscheduler.cpython-310.pyc
9063 bytes
0644
backend.cpython-310.pyc
18900 bytes
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cached_ops.cpython-310.pyc
1400 bytes
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commandline.cpython-310.pyc
28584 bytes
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config.cpython-310.pyc
3140 bytes
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diffdir.cpython-310.pyc
21027 bytes
0644
dup_collections.cpython-310.pyc
37495 bytes
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dup_main.cpython-310.pyc
43356 bytes
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dup_temp.cpython-310.pyc
8412 bytes
0644
dup_threading.cpython-310.pyc
8153 bytes
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dup_time.cpython-310.pyc
7415 bytes
0644
errors.cpython-310.pyc
2980 bytes
0644
file_naming.cpython-310.pyc
9057 bytes
0644
filechunkio.cpython-310.pyc
2701 bytes
0644
globmatch.cpython-310.pyc
4072 bytes
0644
gpg.cpython-310.pyc
12871 bytes
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gpginterface.cpython-310.pyc
21306 bytes
0644
lazy.cpython-310.pyc
12385 bytes
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librsync.cpython-310.pyc
7597 bytes
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log.cpython-310.pyc
12752 bytes
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manifest.cpython-310.pyc
14973 bytes
0644
patchdir.cpython-310.pyc
17747 bytes
0644
path.cpython-310.pyc
24117 bytes
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progress.cpython-310.pyc
8932 bytes
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robust.cpython-310.pyc
1396 bytes
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selection.cpython-310.pyc
15591 bytes
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statistics.cpython-310.pyc
10615 bytes
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tarfile.cpython-310.pyc
393 bytes
0644
tempdir.cpython-310.pyc
8875 bytes
0644
util.cpython-310.pyc
7328 bytes
0644
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