Current File : //proc/3/task/3/cwd/opt/alt/python38/lib64/python3.8/__pycache__/tarfile.cpython-38.pyc
U
��,a�n�@sjdZdZdZdZddlmZddlZddlZddl Z ddl
Z
ddlZddlZddl
Z
ddlZddlZzddlZWnek
r�dZYnXzddlZWnek
r�dZYnXeefZzeef7ZWnek
r�YnXddd d
ddd
ddddddddgZdZdZedZdZdZdZdZdZ dZ!dZ"dZ#dZ$d Z%d!Z&d"Z'd#Z(d$Z)d%Z*d&Z+d'Z,d(Z-d)Z.d*Z/dZ0d+Z1d,Z2e2Z3e!e"e#e$e'e(e)e%e&e*e+e,fZ4e!e"e)e,fZ5e*e+e,fZ6d-Z7d.d/d0d1hZ8e9e9e9e:e:e:d2�Z;ej<d3k�r�d4Z=ne�>�Z=d5d6�Z?d7d8�Z@d9d:�ZAd;e3fd<d=�ZBd>d?�ZCdedfd@dA�ZDdBdC�ZEGdDd
�d
eF�ZGGdEd�deG�ZHGdFd�deG�ZIGdGd�deG�ZJGdHd
�d
eG�ZKGdId�deG�ZLGdJdK�dKeL�ZMGdLdM�dMeL�ZNGdNdO�dOeL�ZOGdPdQ�dQeL�ZPGdRdS�dSeL�ZQGdTdU�dU�ZRGdVdW�dW�ZSGdXdY�dYeT�ZUGdZd[�d[eT�ZVGd\d]�d]e jW�ZXGd^d�deT�ZYGd_d�deT�ZZd`d �Z[eZjZdadb�Z\e]dck�rfe\�dS)dz,Read from and write to tar format archives.
z0.9.0u"Lars Gustäbel (lars@gustaebel.de)u4Gustavo Niemeyer, Niels Gustäbel, Richard Townsend.�)�openN�TarFile�TarInfo�
is_tarfile�TarError� ReadError�CompressionError�StreamError�ExtractError�HeaderError�ENCODING�USTAR_FORMAT�
GNU_FORMAT�
PAX_FORMAT�DEFAULT_FORMATr�i�sustar sustar00�d��0�1�2�3�4�5�6�7�L�K�S�x�g�X��)�path�linkpath�size�mtime�uid�gid�uname�gnamer%r&r+r,)Zatime�ctimer(r)r*r'�nt�utf-8cCs(|�||�}|d|�|t|�tS)z8Convert a string to a null-terminated bytes object.
N)�encode�len�NUL)�s�length�encoding�errors�r7�,/opt/alt/python38/lib64/python3.8/tarfile.py�stn�sr9cCs*|�d�}|dkr|d|�}|�||�S)z8Convert a null-terminated bytes object to a string.
r���N)�find�decode)r3r5r6�pr7r7r8�nts�s
r>cCs�|ddkrbd}tt|�d�D]}|dK}|||d7}q |ddkr�dt|�d|}n@z"t|dd�}t|��p|d d�}Wntk
r�td
��YnX|S)z/Convert a number field to a python number.
r)��r#�r@��ascii�strict�0�invalid header)�ranger1r>�int�strip�
ValueError�InvalidHeaderError)r3�n�ir7r7r8�nti�srNrAcCs�t|�}d|kr$d|dkrDnntd|d|fd�t}n�|tkr�d|d|krrd|dkr�nnV|dkr�tdg�}ntdg�}d||}t|d�D]}|�d|d@�|dL}q�ntd ��|S)
z/Convert a python number to a number field.
rrAr#z%0*orCrBr?r@zoverflow in number field)rH�bytesr2r� bytearrayrG�insertrJ)rL�digits�formatr3rMr7r7r8�itn�s 2
rTcCs0dtt�d|��}dtt�d|��}||fS)a�Calculate the checksum for a member's header by summing up all
characters except for the chksum field which is treated as if
it was filled with spaces. According to the GNU tar sources,
some tars (Sun and NeXT) calculate chksum with signed char,
which will be different if there are chars in the buffer with
the high bit set. So we calculate two checksums, unsigned and
signed.
rBZ
148B8x356BZ
148b8x356b)�sum�structZunpack_from)�bufZunsigned_chksumZ
signed_chksumr7r7r8�calc_chksums�s rXc Cs�|pd}|dkrdS|dkr.t�|||�dSt||�\}}t|�D],}|�|�}t|�|krf|d��|�|�qD|dkr�|�|�}t|�|kr�|d��|�|�dS)zjCopy length bytes from fileobj src to fileobj dst.
If length is None, copy the entire content.
i@rN�unexpected end of data)�shutil�copyfileobj�divmodrG�readr1�write) �srcZdstr4� exception�bufsize�blocks� remainder�brWr7r7r8r[�s$
r[cCs8ttjdd�}|dk r(|�|d��|�}t|dd�dS)Nr5�backslashreplace� )�end)�getattr�sys�stdoutr0r<�print)r3r5r7r7r8�_safe_printsrlc@seZdZdZdS)rzBase exception.N��__name__�
__module__�__qualname__�__doc__r7r7r7r8r
sc@seZdZdZdS)r
z%General exception for extract errors.Nrmr7r7r7r8r
sc@seZdZdZdS)rz&Exception for unreadable tar archives.Nrmr7r7r7r8rsc@seZdZdZdS)rz.Exception for unavailable compression methods.Nrmr7r7r7r8rsc@seZdZdZdS)r z=Exception for unsupported operations on stream-like TarFiles.Nrmr7r7r7r8r sc@seZdZdZdS)rz!Base exception for header errors.Nrmr7r7r7r8rsc@seZdZdZdS)�EmptyHeaderErrorzException for empty headers.Nrmr7r7r7r8rrsrrc@seZdZdZdS)�TruncatedHeaderErrorz Exception for truncated headers.Nrmr7r7r7r8rssrsc@seZdZdZdS)�EOFHeaderErrorz"Exception for end of file headers.Nrmr7r7r7r8rt"srtc@seZdZdZdS)rKzException for invalid headers.Nrmr7r7r7r8rK%srKc@seZdZdZdS)�SubsequentHeaderErrorz3Exception for missing and invalid extended headers.Nrmr7r7r7r8ru(sruc@s0eZdZdZdd�Zdd�Zdd�Zdd �Zd
S)�
_LowLevelFilez�Low-level file object. Supports reading and writing.
It is used instead of a regular file object for streaming
access.
cCsFtjtjtjBtjBd�|}ttd�r2|tjO}t�||d�|_dS)N��r�w�O_BINARYi�) �os�O_RDONLY�O_WRONLY�O_CREAT�O_TRUNC�hasattrrzr�fd)�self�name�moder7r7r8�__init__5s��
z_LowLevelFile.__init__cCst�|j�dS�N)r{�closer��r�r7r7r8r�>sz_LowLevelFile.closecCst�|j|�Sr�)r{r]r��r�r'r7r7r8r]Asz_LowLevelFile.readcCst�|j|�dSr�)r{r^r��r�r3r7r7r8r^Dsz_LowLevelFile.writeN)rnrorprqr�r�r]r^r7r7r7r8rv/s
rvc@sreZdZdZdd�Zdd�Zdd�Zdd �Zd
d�Zdd
�Z dd�Z
dd�Zddd�Zdd�Z
dd�Zdd�ZdS)�_Streama�Class that serves as an adapter between TarFile and
a stream-like object. The stream-like object only
needs to have a read() or write() method and is accessed
blockwise. Use of gzip or bzip2 compression is possible.
A stream-like object could be for example: sys.stdin,
sys.stdout, a socket, a tape device etc.
_Stream is intended to be used only internally.
c Cs�d|_|dkrt||�}d|_|dkr6t|�}|��}|p<d|_||_||_||_||_d|_ d|_
d|_�zL|dkr�zddl}Wnt
k
r�td ��YnX||_|�d�|_|d
kr�|��|j|_n|��n�|dk�r:zddl}Wnt
k
�r
td��YnX|d
k�r.d|_|��|_t|_n
|��|_n||d
k�r�zddl}Wnt
k
�rntd��YnX|d
k�r�d|_|��|_|j|_n
|��|_n|dk�r�td|��Wn&|j�s�|j��d|_�YnXdS)z$Construct a _Stream object.
TNF�*��r�gzzzlib module is not availablerx�bz2�bz2 module is not available�xz�lzma module is not available�tar�unknown compression type %r) �_extfileobjrv�_StreamProxy�getcomptyper�r��comptype�fileobjrarW�pos�closed�zlib�ImportErrorr�crc32�crc�
_init_read_gz�errorr`�_init_write_gzr��dbufZBZ2Decompressor�cmp�OSErrorZ
BZ2Compressor�lzmaZLZMADecompressor� LZMAErrorZLZMACompressorr�) r�r�r�r�r�rar�r�r�r7r7r8r�Rsl
z_Stream.__init__cCst|d�r|js|��dS)Nr�)r�r�r�r�r7r7r8�__del__�sz_Stream.__del__cCs�|j�d|jj|jj|jjd�|_t�dtt � ���}|�
d|d�|j�d�rf|jdd�|_t
j�|j�|_|�
|j�d d
�t�dS)z6Initialize for writing with gzip compression.
� r�<Ls�s��.gzN���z
iso-8859-1�replace)r�ZcompressobjZDEFLATED� MAX_WBITSZ
DEF_MEM_LEVELr�rV�packrH�time�_Stream__writer��endswithr{r%�basenamer0r2)r�Z timestampr7r7r8r��s�z_Stream._init_write_gzcCsR|jdkr|j�||j�|_|jt|�7_|jdkrD|j�|�}|�|�dS)z&Write string s to the stream.
r�r�N) r�r�r�r�r�r1r��compressr�r�r7r7r8r^�s
z
_Stream.writecCsN|j|7_t|j�|jkrJ|j�|jd|j��|j|jd�|_qdS)z]Write string s to the stream if a whole new block
is ready to be written.
N)rWr1rar�r^r�r7r7r8Z__write�sz_Stream.__writecCs�|jr
dSd|_z�|jdkr:|jdkr:|j|j��7_|jdkr�|jr�|j� |j�d|_|jdkr�|j� t
�d|j��|j� t
�d|j
d@��W5|js�|j��XdS) z[Close the _Stream object. No operation should be
done on it afterwards.
NTryr�r�r�r�l��)r�r�r�r�r�r�rWr��flushr^rVr�r�r�r�r7r7r8r��s
z
_Stream.closecCs�|j�|jj�|_d|_|�d�dkr0td��|�d�dkrFtd��t|�d��}|�d�|d @r�t|�d��d
t|�d��}|� |�|d@r�|�d�}|r�|t
kr�q�q�|d@r�|�d�}|r�|t
kr�q�q�|d@r�|�d�d
S)z:Initialize for reading a gzip compressed fileobj.
r�r$s��not a gzip filer#�zunsupported compression method��rBrA�N)r�Z
decompressobjr�r�r��
_Stream__readrr�ordr]r2)r��flagZxlenr3r7r7r8r��s*
z_Stream._init_read_gzcCs|jS)z3Return the stream's file pointer position.
)r�r�r7r7r8�tell�sz_Stream.tellrcCsX||jdkrJt||j|j�\}}t|�D]}|�|j�q,|�|�ntd��|jS)zXSet the stream's file pointer to pos. Negative seeking
is forbidden.
rz seeking backwards is not allowed)r�r\rarGr]r )r�r�rbrcrMr7r7r8�seek�sz_Stream.seekcCs,|dk st�|�|�}|jt|�7_|S)z5Return the next size number of bytes from the stream.N)�AssertionError�_readr�r1)r�r'rWr7r7r8r]s
z_Stream.readcCs�|jdkr|�|�St|j�}|jg}||kr�|jrB|j}d|_n|j�|j�}|sVq�z|j� |�}Wn|j
k
r�td��YnX|�|�|t|�7}q&d�
|�}||d�|_|d|�S)z+Return size bytes from the stream.
r�r�zinvalid compressed dataN)r�r�r1r�rWr�r]rar��
decompressr`r�append�join�r�r'�c�trWr7r7r8r�
s(
z
_Stream._readcCsjt|j�}|jg}||krF|j�|j�}|s.qF|�|�|t|�7}qd�|�}||d�|_|d|�S)zsReturn size bytes from stream. If internal buffer is empty,
read another block from the stream.
r�N)r1rWr�r]rar�r�r�r7r7r8Z__read(s
z_Stream.__readN)r)rnrorprqr�r�r�r^r�r�r�r�r�r]r�r�r7r7r7r8r�Gs
F
r�c@s0eZdZdZdd�Zdd�Zdd�Zdd �Zd
S)r�zsSmall proxy class that enables transparent compression
detection for the Stream interface (mode 'r|*').
cCs||_|j�t�|_dSr�)r�r]� BLOCKSIZErW)r�r�r7r7r8r�>sz_StreamProxy.__init__cCs|jj|_|jSr�)r�r]rWr�r7r7r8r]Bs
z_StreamProxy.readcCsP|j�d�rdS|jdd�dkr8|jdd�dkr8d S|j�d
�rHdSdSdS)
Ns�r�r�sBZhr��
s1AY&SYr�)s]�s�7zXZr�r�)rW�
startswithr�r7r7r8r�Fs$z_StreamProxy.getcomptypecCs|j��dSr�)r�r�r�r7r7r8r�Psz_StreamProxy.closeN)rnrorprqr�r]r�r�r7r7r7r8r�9s
r�c@sjeZdZdZddd�Zdd�Zdd�Zd d
�Zdd�Zd
d�Z e
jfdd�Zddd�Z
dd�Zdd�ZdS)�_FileInFilezA thin wrapper around an existing file object that
provides a part of its data as an individual file
object.
NcCs�||_||_||_d|_t|dd�|_d|_|dkr>d|fg}d|_g|_d}|j}|D]L\}}||kr||j� d||df�|j� d||||f�||7}||}qX||jkr�|j� d||jdf�dS)Nrr�FT)
r��offsetr'�positionrhr�r�� map_index�mapr�)r�r�r�r'Z blockinfoZlastposZrealposr7r7r8r�]s(
z_FileInFile.__init__cCsdSr�r7r�r7r7r8r�vsz_FileInFile.flushcCsdS�NTr7r�r7r7r8�readableysz_FileInFile.readablecCsdS)NFr7r�r7r7r8�writable|sz_FileInFile.writablecCs
|j��Sr�)r��seekabler�r7r7r8r�sz_FileInFile.seekablecCs|jS)z*Return the current file position.
)r�r�r7r7r8r��sz_FileInFile.tellcCs�|tjkr tt|d�|j�|_nj|tjkr\|dkrFt|j|d�|_q�t|j||j�|_n.|tjkr�tt|j||j�d�|_ntd��|jS)z(Seek to a position in the file.
rzInvalid argument) �io�SEEK_SET�min�maxr'r��SEEK_CUR�SEEK_ENDrJ)r�r��whencer7r7r8r��s
z_FileInFile.seekc Cs
|dkr|j|j}nt||j|j�}d}|dk�r|j|j\}}}}||jkr`|krhq�nq�q6|jd7_|jt|j�kr6d|_q6t|||j�}|r�|j�||j|�|j�|�}t|�|kr�t d��||7}n|t
|7}||8}|j|7_q,|S)z!Read data from the file.
Nr�rr#rY)r'r�r�r�r�r1r�r�r]rr2) r�r'rW�data�start�stopr�r4rdr7r7r8r]�s,
z_FileInFile.readcCs&|�t|��}||dt|��<t|�Sr�)r]r1)r�rdrWr7r7r8�readinto�sz_FileInFile.readintocCs
d|_dSr�)r�r�r7r7r8r��sz_FileInFile.close)N)N)rnrorprqr�r�r�r�r�r�r�r�r�r]r�r�r7r7r7r8r�Ws
r�cseZdZ�fdd�Z�ZS)�ExFileObjectcs&t|j|j|j|j�}t��|�dSr�)r�r��offset_datar'�sparse�superr�)r��tarfile�tarinfor��� __class__r7r8r��s
�zExFileObject.__init__)rnrorpr��
__classcell__r7r7r�r8r��sr�c@s�eZdZdZedddddddd d
ddd
ddddddddd�Zdedd�Zedd��Zej dd��Zedd��Z
e
j dd��Z
dd�Zd d!�Ze
ed"fd#d$�Zd%d&�Zd'd(�Zd)d*�Zed+d,��Zd-d.�Zed/d0��Zed1d2��Zed3d4��Zed5d6��Zed7d8��Zed9d:��Zd;d<�Zd=d>�Zd?d@�ZdAdB�Z dCdD�Z!dEdF�Z"dGdH�Z#dIdJ�Z$dKdL�Z%dMdN�Z&dOdP�Z'dQdR�Z(dSdT�Z)dUdV�Z*dWdX�Z+dYdZ�Z,d[d\�Z-d]d^�Z.d_d`�Z/dadb�Z0dcdd�Z1dS)fraInformational class which holds the details about an
archive member given by a tar header block.
TarInfo objects are returned by TarFile.getmember(),
TarFile.getmembers() and TarFile.gettarinfo() and are
usually created internally.
zName of the archive member.zPermission bits.z6User ID of the user who originally stored this member.z7Group ID of the user who originally stored this member.zSize in bytes.zTime of last modification.zHeader checksum.z�File type. type is usually one of these constants: REGTYPE, AREGTYPE, LNKTYPE, SYMTYPE, DIRTYPE, FIFOTYPE, CONTTYPE, CHRTYPE, BLKTYPE, GNUTYPE_SPARSE.zcName of the target file name, which is only present in TarInfo objects of type LNKTYPE and SYMTYPE.z
User name.zGroup name.zDevice major number.zDevice minor number.zThe tar header starts here.zThe file's data starts here.zMA dictionary containing key-value pairs of an associated pax extended header.zSparse member information.N)r�r�r)r*r'r(�chksum�type�linknamer+r,�devmajor�devminorr�r��pax_headersr�r��_sparse_structs�_link_targetr�cCsj||_d|_d|_d|_d|_d|_d|_t|_d|_ d|_
d|_d|_d|_
d|_d|_d|_i|_dS)zXConstruct a TarInfo object. name is the optional name
of the member.
i�rr�N)r�r�r)r*r'r(r��REGTYPEr�r�r+r,r�r�r�r�r�r��r�r�r7r7r8r��s"zTarInfo.__init__cCs|jS)z(In pax headers, "name" is called "path".�r�r�r7r7r8r%szTarInfo.pathcCs
||_dSr�r�r�r7r7r8r%
scCs|jS)z0In pax headers, "linkname" is called "linkpath".�r�r�r7r7r8r&szTarInfo.linkpathcCs
||_dSr�r�)r�r�r7r7r8r&scCsd|jj|jt|�fS)Nz<%s %r at %#x>)r�rnr��idr�r7r7r8�__repr__szTarInfo.__repr__cCsl|j|jd@|j|j|j|j|j|j|j|j |j
|j|jd�
}|dt
krh|d�d�sh|dd7<|S)z9Return the TarInfo's attributes as a dictionary.
�)
r�r�r)r*r'r(r�r�r�r+r,r�r�r�r��/)r�r�r)r*r'r(r�r�r�r+r,r�r��DIRTYPEr�)r��infor7r7r8�get_infos"�zTarInfo.get_info�surrogateescapecCsT|��}|tkr|�|||�S|tkr4|�|||�S|tkrH|�||�Std��dS)z<Return a tar header as a string of 512 byte blocks.
zinvalid formatN)r�r
�create_ustar_headerr�create_gnu_headerr�create_pax_headerrJ)r�rSr5r6r�r7r7r8�tobuf2sz
TarInfo.tobufcCsnt|d<t|d�||��tkr(td��t|d�||��tkr^|�|d||�\|d<|d<|�|t||�S)z3Return the object as a ustar header block.
�magicr�zlinkname is too longr��prefix) �POSIX_MAGICr1r0�LENGTH_LINKrJ�LENGTH_NAME�_posix_split_name�_create_headerr
)r�r�r5r6r7r7r8r�@szTarInfo.create_ustar_headercCs�t|d<d}t|d�||��tkr<||�|dt||�7}t|d�||��tkrl||�|dt||�7}||�|t ||�S)z:Return the object as a GNU header block sequence.
rr�r�r�)
� GNU_MAGICr1r0r�_create_gnu_long_header�GNUTYPE_LONGLINKr�GNUTYPE_LONGNAMErr)r�r�r5r6rWr7r7r8r�MszTarInfo.create_gnu_headerc
Cs*t|d<|j��}ddtfddtfddfD]j\}}}||kr>q*z||�dd �Wn$tk
rv||||<Yq*YnXt||�|kr*||||<q*d
D]`\}}||kr�d||<q�||}d|kr�d|d
kr�nn
t|t �r�t
|�||<d||<q�|�r|�|t|�} nd} | |�
|tdd�S)z�Return the object as a ustar header block. If it cannot be
represented this way, prepend a pax extended header sequence
with supplement information.
rr�r%r�r&)r+r+� )r,r,r
rCrD))r)rA)r*rA)r'�)r(rrrAr#r�r�)rr��copyrrr0�UnicodeEncodeErrorr1�
isinstance�float�str�_create_pax_generic_header�XHDTYPErr
)
r�r�r5r�r�Zhnamer4rR�valrWr7r7r8r[s8
�
*
zTarInfo.create_pax_headercCs|�|td�S)zAReturn the object as a pax global header block sequence.
r/)r�XGLTYPE)�clsr�r7r7r8�create_pax_global_header�sz TarInfo.create_pax_global_headercCs~|�d�}tdt|��D]T}d�|d|��}d�||d��}t|�||��tkrt|�||��tkrqvqtd��||fS)zUSplit a name longer than 100 chars into a prefix
and a name part.
r�r#Nzname is too long)�splitrGr1r�r0�
LENGTH_PREFIXrrJ)r�r�r5r6Z
componentsrMrr7r7r8r�s
�zTarInfo._posix_split_namecCsVt|�dd�d||�t|�dd�d@d|�t|�dd�d|�t|�d d�d|�t|�d
d�d|�t|�dd�d|�d
|�dt�t|�dd�d||�|�dt�t|�dd�d||�t|�dd�d||�t|�dd�d|�t|�dd�d|�t|�dd�d||�g}t�dtd�|��}t |td��d}|dd�t
d|d�|dd�}|S)z�Return a header block. info is a dictionary with file
information, format must be one of the *_FORMAT constants.
r�r�rr�rr�rAr)r*r'rr(s r�r�rr+r
r,r�r�rrz%dsr�Ni����z%06orCi����)r9�getrTr�rrVr�r�r�rXrO)r�rSr5r6�partsrWr�r7r7r8r�s(
�&zTarInfo._create_headercCs.tt|�t�\}}|dkr*|t|t7}|S)zdReturn the string payload filled with zero bytes
up to the next 512 byte border.
r)r\r1r�r2)Zpayloadrbrcr7r7r8�_create_payload�szTarInfo._create_payloadcCsR|�||�t}i}d|d<||d<t|�|d<t|d<|�|t||�|�|�S)zTReturn a GNUTYPE_LONGNAME or GNUTYPE_LONGLINK sequence
for name.
z
././@LongLinkr�r�r'r)r0r2r1r rr
r)rr�r�r5r6r�r7r7r8r
�s�zTarInfo._create_gnu_long_headerc Cs2d}|��D]8\}}z|�dd�Wqtk
rBd}YqFYqXqd}|rV|d7}|��D]�\}}|�d�}|r�|�|d�}n
|�d�}t|�t|�d}d } }
|tt|
��} | |
kr�q�| }
q�|tt|
�d
�d|d|d
7}q^i}d|d<||d<t|�|d<t|d<|�|td
d�|� |�S)z�Return a POSIX.1-2008 extended or global header sequence
that contains a list of keyword, value pairs. The values
must be strings.
Fr/rDTr�s21 hdrcharset=BINARY
r�r�rrC� �=�
z././@PaxHeaderr�r�r'rr�)
�itemsr0rr1rrOrrr
r)rr�r�r5Zbinary�keyword�valueZrecords�lrLr=r�r7r7r8r�s<
(�z"TarInfo._create_pax_generic_headerc Csvt|�dkrtd��t|�tkr(td��|�t�tkr>td��t|dd��}|t|�krbt d��|�}t
|dd�||�|_t|dd ��|_t|d d
��|_
t|d
d��|_t|dd��|_t|dd��|_||_|dd
�|_t
|d
d�||�|_t
|dd�||�|_t
|dd�||�|_t|dd��|_t|dd��|_t
|dd�||�}|jtk�r�|j�d��r�t|_|jtk�r8d}g}td�D]l} z0t|||d��}
t||d|d��}Wntk
�r�Y�qYnX|�|
|f�|d7}�q�t|d�}t|dd��}
|||
f|_ |�!��rP|j�"d�|_|�rr|jt#k�rr|d|j|_|S)zAConstruct a TarInfo object from a 512 byte bytes object.
rzempty headerztruncated headerzend of file header��zbad checksumr�l�t�|��ii i)iIiQiYi�r�i�r�r�i�i�i�)$r1rrr�rs�countr2rtrNrXrKr>r�r�r)r*r'r(r�r�r�r+r,r�r��AREGTYPEr�r��GNUTYPE_SPARSErGrJr��boolr��isdir�rstrip� GNU_TYPES)rrWr5r6r��objrr��structsrMr��numbytes�
isextended�origsizer7r7r8�frombufsZ
zTarInfo.frombufcCs8|j�t�}|�||j|j�}|j��t|_|�|�S)zOReturn the next TarInfo object from TarFile object
tarfile.
) r�r]r�r:r5r6r�r��_proc_member)rr�rWr5r7r7r8�fromtarfileKszTarInfo.fromtarfilecCsT|jttfkr|�|�S|jtkr,|�|�S|jtttfkrF|� |�S|�
|�SdS)zYChoose the right processing method depending on
the type and call it.
N)r�rr�
_proc_gnulongr0�_proc_sparserr�SOLARIS_XHDTYPE� _proc_pax�
_proc_builtin)r�r�r7r7r8r;`s
zTarInfo._proc_membercCsR|j��|_|j}|��s$|jtkr4||�|j�7}||_|� |j
|j|j�|S)zfProcess a builtin type or an unknown type which
will be treated as a regular file.
)
r�r�r��isregr��SUPPORTED_TYPES�_blockr'r��_apply_pax_infor�r5r6)r�r�r�r7r7r8rAmszTarInfo._proc_builtincCs�|j�|�|j��}z|�|�}Wntk
r>td��YnX|j|_|jt krft
||j|j�|_
n|jtkr�t
||j|j�|_|S)zSProcess the blocks that hold a GNU longname
or longlink member.
� missing or bad subsequent header)r�r]rDr'r<rrur�r�rr>r5r6r�rr�)r�r�rW�nextr7r7r8r=~s
zTarInfo._proc_gnulongc
Cs�|j\}}}|`|r�|j�t�}d}td�D]n}z0t|||d��}t||d|d��} Wntk
rzYq�YnX|r�| r�|�|| f�|d7}q,t|d�}q||_ |j�
�|_|j|�|j
�|_||_
|S)z8Process a GNU sparse header plus extra headers.
r�rr-i�)r�r�r]r�rGrNrJr�r1r�r�r�rDr'r�)
r�r�r6r8r9rWr�rMr�r7r7r7r8r>�s(
zTarInfo._proc_sparsecCs.|j�|�|j��}|jtkr&|j}n
|j��}t� d|�}|dk rX|�
d��d�|d<|�d�}|dkrr|j
}nd}t�d�}d}|�||�}|s��q6|��\} }
t| �} | dkr�td ��||�d
�d|�d�| d�}|�|
dd|j�}
|
tk�r|�|||j
|j�}n|�|dd|j�}|||
<|| 7}q�z|�|�}Wntk
�rbtd��YnXd|k�r||�||�nHd
|k�r�|�|||�n.|�d�dk�r�|�d�dk�r�|�|||�|jttfk�r*|� ||j
|j�|j!|_!d|k�r*|j"}
|�#��s|jt$k�r$|
|�|j�7}
|
|_!|S)zVProcess an extended or global header as described in
POSIX.1-2008.
s\d+ hdrcharset=([^\n]+)\nNr#r/�
hdrcharsetZBINARYs(\d+) ([^=]+)=rrFr$rF�GNU.sparse.map�GNU.sparse.sizezGNU.sparse.major�1zGNU.sparse.minorrEr')%r�r]rDr'r�rr�r�re�search�groupr<rr5�compile�match�groupsrHrKrgr��_decode_pax_fieldr6�PAX_NAME_FIELDSr<rru�_proc_gnusparse_01�_proc_gnusparse_00�_proc_gnusparse_10rr?rEr�r�rBrC)r�r�rWr�rQrIr5Zregexr�r4r#r$rGr�r7r7r8r@�sh
$
�
�
�
zTarInfo._proc_paxcCshg}t�d|�D]}|�t|�d���qg}t�d|�D]}|�t|�d���q:tt||��|_dS)z?Process a GNU tar extended sparse header, version 0.0.
s\d+ GNU.sparse.offset=(\d+)\nr#s\d+ GNU.sparse.numbytes=(\d+)\nN)rM�finditerr�rHrO�list�zipr�)r�rGr�rWZoffsetsrQr7r7r7r8rVszTarInfo._proc_gnusparse_00cCs@dd�|d�d�D�}tt|ddd�|ddd���|_dS)z?Process a GNU tar extended sparse header, version 0.1.
cSsg|]}t|��qSr7)rH)�.0�xr7r7r8�
<listcomp>&sz.TarInfo._proc_gnusparse_01.<locals>.<listcomp>rJ�,Nr$r#)rrYrZr�)r�rGr�r�r7r7r8rU#szTarInfo._proc_gnusparse_01cCs�d}g}|j�t�}|�dd�\}}t|�}t|�|dkrtd|krT||j�t�7}|�dd�\}}|�t|��q,|j��|_t t
|ddd�|ddd���|_dS)z?Process a GNU tar extended sparse header, version 1.0.
Nr!r#r$)r�r]r�rrHr1r�r�r�rYrZr�)r�rGr�r�Zfieldsr�rWZnumberr7r7r8rW)szTarInfo._proc_gnusparse_10c Cs�|��D]�\}}|dkr&t|d|�q|dkr@t|dt|��q|dkrZt|dt|��q|tkr|tkr�zt||�}Wntk
r�d}YnX|dkr�|�d�}t|||�q|��|_dS) zoReplace fields with supplemental information from a previous
pax extended or global header.
zGNU.sparse.namer%rKr'zGNU.sparse.realsizerr�N) r"�setattrrH�
PAX_FIELDS�PAX_NUMBER_FIELDSrJr3rr�)r�r�r5r6r#r$r7r7r8rE9s"
zTarInfo._apply_pax_infocCs4z|�|d�WStk
r.|�||�YSXdS)z1Decode a single field from a pax record.
rDN)r<�UnicodeDecodeError)r�r$r5Zfallback_encodingZfallback_errorsr7r7r8rSPszTarInfo._decode_pax_fieldcCs"t|t�\}}|r|d7}|tS)z_Round up a byte count by BLOCKSIZE and return it,
e.g. _block(834) => 1024.
r#)r\r�)r�r.rbrcr7r7r8rDXszTarInfo._blockcCs
|jtkS�z4Return True if the Tarinfo object is a regular file.)r��
REGULAR_TYPESr�r7r7r8rBasz
TarInfo.isregcCs|��Src)rBr�r7r7r8�isfileeszTarInfo.isfilecCs
|jtkS)z!Return True if it is a directory.)r�r�r�r7r7r8r2isz
TarInfo.isdircCs
|jtkS)z%Return True if it is a symbolic link.)r��SYMTYPEr�r7r7r8�issymmsz
TarInfo.issymcCs
|jtkS)z!Return True if it is a hard link.)r��LNKTYPEr�r7r7r8�islnkqsz
TarInfo.islnkcCs
|jtkS)z(Return True if it is a character device.)r��CHRTYPEr�r7r7r8�ischrusz
TarInfo.ischrcCs
|jtkS)z$Return True if it is a block device.)r��BLKTYPEr�r7r7r8�isblkysz
TarInfo.isblkcCs
|jtkS)zReturn True if it is a FIFO.)r��FIFOTYPEr�r7r7r8�isfifo}szTarInfo.isfifocCs
|jdk Sr�)r�r�r7r7r8�issparse�szTarInfo.issparsecCs|jtttfkS)zCReturn True if it is one of character device, block device or FIFO.)r�rjrlrnr�r7r7r8�isdev�sz
TarInfo.isdev)r�)2rnrorprq�dict� __slots__r��propertyr%�setterr&r�r�rrrr�r�r�classmethodrr�staticmethodrrr
rr:r<r;rAr=r>r@rVrUrWrErSrDrBrer2rgrirkrmrorprqr7r7r7r8r�s��
1
2
>
h c
@s�eZdZdZdZdZdZdZeZ e
ZdZe
ZeZd\dd �Zedddefd
d��Zed]dd
��Zed^dd��Zed_dd��Zed`dd��Zddddd�Zdd�Zdd�Zdd�Zd d!�Zdad"d#�Zdbdd%�d&d'�Zdcdd(�d)d*�Z ddd+d,�Z!dedd.�d/d0�Z"dfdd.�d2d3�Z#d4d5�Z$dgd6d7�Z%d8d9�Z&d:d;�Z'd<d=�Z(d>d?�Z)d@dA�Z*dBdC�Z+dDdE�Z,dFdG�Z-dHdI�Z.dJdK�Z/dhdLdM�Z0dNdO�Z1didPdQ�Z2dRdS�Z3dTdU�Z4dVdW�Z5dXdY�Z6dZd[�Z7dS)jrz=The TarFile Class provides an interface to tar archives.
rFr#Nrxr�c
Cs�ddddd�}||krtd��||_|||_|sh|jdkrTtj�|�sTd|_d|_t||j�}d |_n@|d
kr�t|d�r�t |j
ttf�r�|j
}t|d�r�|j|_d
|_|r�tj�
|�nd
|_
||_|d
k r�||_|d
k r�||_|d
k r�||_|d
k r�||_|d
k �r||_| |_|
d
k �r0|jtk�r0|
|_ni|_|d
k �rF||_|d
k �rV||_|
|_d |_g|_d |_|j��|_i|_z�|jdk�r�d
|_ |�!�|_ |jdk�r2|j�"|j�z|j�#|�}|j�$|�WnXt%k
�r�|j�"|j�Y�q2Yn0t&k
�r,}zt't|���W5d
}~XYnX�q�|jdk�r|d
|_|j�r||j�(|j�)��}|j�*|�|jt+|�7_Wn&|j�s�|j�,�d
|_�YnXd
S)a�Open an (uncompressed) tar archive `name'. `mode' is either 'r' to
read from an existing archive, 'a' to append data to an existing
file or 'w' to create a new file overwriting an existing one. `mode'
defaults to 'r'.
If `fileobj' is given, it is used for reading or writing data. If it
can be determined, `mode' is overridden by `fileobj's mode.
`fileobj' is not closed, when TarFile is closed.
�rbzr+b�wbZxb�rx�aryr\�!mode must be 'r', 'a', 'w' or 'x'r{ryFNr�r�Trx�r{ryr\)-rJr��_moder{r%�exists� bltn_openr�r�rr�rrO�abspathr�rSr��dereference�ignore_zerosr5r6rr��debug�
errorlevel�copybufsizer��members�_loadedr�r��inodes�firstmemberrGr�r<r�rtrrrrr^r1r�)r�r�r�r�rSr�r�r�r5r6r�r�r�r�Zmodes�erWr7r7r8r��s�
�
"
zTarFile.__init__c
s�|s|std��|dkr��fdd�}t�j|d�D]j}t��j|�}|dk rV|��} z||d|f|�WSttfk
r�|dk r�|�| �Yq2Yq2Xq2td���nd |k�r|�d d
�\}
}|
p�d}
|p�d}|�jkr�t��j|�}ntd|��|||
|f|�Sd
|k�r�|�d
d
�\}
}|
�p.d}
|�p8d}|
dk�rLtd��t ||
|||�}z�||
|f|�}Wn|�
��YnXd|_|S|dk�r��j|||f|�Std��dS)a�Open a tar archive for reading, writing or appending. Return
an appropriate TarFile class.
mode:
'r' or 'r:*' open for reading with transparent compression
'r:' open for reading exclusively uncompressed
'r:gz' open for reading with gzip compression
'r:bz2' open for reading with bzip2 compression
'r:xz' open for reading with lzma compression
'a' or 'a:' open for appending, creating the file if necessary
'w' or 'w:' open for writing without compression
'w:gz' open for writing with gzip compression
'w:bz2' open for writing with bzip2 compression
'w:xz' open for writing with lzma compression
'x' or 'x:' create a tarfile exclusively without compression, raise
an exception if the file is already created
'x:gz' create a gzip compressed tarfile, raise an exception
if the file is already created
'x:bz2' create a bzip2 compressed tarfile, raise an exception
if the file is already created
'x:xz' create an lzma compressed tarfile, raise an exception
if the file is already created
'r|*' open a stream of tar blocks with transparent compression
'r|' open an uncompressed stream of tar blocks for reading
'r|gz' open a gzip compressed stream of tar blocks
'r|bz2' open a bzip2 compressed stream of tar blocks
'r|xz' open an lzma compressed stream of tar blocks
'w|' open an uncompressed stream for writing
'w|gz' open a gzip compressed stream for writing
'w|bz2' open a bzip2 compressed stream for writing
'w|xz' open an lzma compressed stream for writing
znothing to open)rx�r:*cs�j|dkS)N�taropen)� OPEN_METH)r��rr7r8�not_compressed<sz$TarFile.open.<locals>.not_compressed��keyNrxz%file could not be opened successfully�:r#r�r��|rwzmode must be 'r' or 'w'Fr}zundiscernible mode)
rJ�sortedr�rhr�rrr�rr�r�r�r�)
rr�r�r�ra�kwargsr�r��funcZ saved_pos�filemode�streamr�r7r�r8rsP%
zTarFile.opencKs |dkrtd��||||f|�S)zCOpen uncompressed tar archive name for reading or writing.
rzr|)rJ)rr�r�r�r�r7r7r8r�mszTarFile.taropenr�cKs�|dkrtd��zddlm}Wntk
r<td��YnXz|||d||�}Wn.tk
r�|dk r||dkr|td ���YnXz|j|||f|�}WnBtk
r�|��|dkr�td ���Yn|���YnXd
|_ |S)zkOpen gzip compressed tar archive name for reading or writing.
Appending is not allowed.
�rxryr\�mode must be 'r', 'w' or 'x'r)�GzipFilezgzip module is not availablerdNrxr�F)
rJZgzipr�r�rr�rr�r�r�)rr�r�r��
compresslevelr�r�r�r7r7r8�gzopenus0zTarFile.gzopenc Ks�|dkrtd��zddlm}Wntk
r<td��YnX||pF|||d�}z|j|||f|�}WnFttfk
r�|��|dkr�t d���Yn|���YnXd |_
|S)
zlOpen bzip2 compressed tar archive name for reading or writing.
Appending is not allowed.
r�r�r)�BZ2Filer�)r�rxznot a bzip2 fileF)rJr�r�r�rr�r��EOFErrorr�rr�)rr�r�r�r�r�r�r�r7r7r8�bz2open�s&zTarFile.bz2openc Ks�|dkrtd��zddlm}m}Wntk
r@td��YnX||pJ|||d�}z|j|||f|�}WnF|tfk
r�|��|dkr�t d���Yn|���YnXd |_
|S)
zkOpen lzma compressed tar archive name for reading or writing.
Appending is not allowed.
r�r�r)�LZMAFiler�r�)�presetrxznot an lzma fileF)rJr�r�r�r�rr�r�r�rr�) rr�r�r�r�r�r�r�r�r7r7r8�xzopen�s&zTarFile.xzopenr�r�r�r�)r�r�r�r�cCs�|jr
dSd|_z`|jdkrn|j�ttd�|jtd7_t |jt
�\}}|dkrn|j�tt
|�W5|js�|j��XdS)zlClose the TarFile. In write-mode, two finishing zero blocks are
appended to the archive.
NTr}r$r)r�r�r�r�r�r^r2r�r�r\�
RECORDSIZE)r�rbrcr7r7r8r��s
z
TarFile.closecCs"|�|�}|dkrtd|��|S)aReturn a TarInfo object for member `name'. If `name' can not be
found in the archive, KeyError is raised. If a member occurs more
than once in the archive, its last occurrence is assumed to be the
most up-to-date version.
Nzfilename %r not found)�
_getmember�KeyError)r�r�r�r7r7r8� getmember�s
zTarFile.getmembercCs|��|js|��|jS)z�Return the members of the archive as a list of TarInfo objects. The
list has the same order as the members in the archive.
)�_checkr��_loadr�r�r7r7r8�
getmembers�szTarFile.getmemberscCsdd�|��D�S)z�Return the members of the archive as a list of their names. It has
the same order as the list returned by getmembers().
cSsg|]
}|j�qSr7r�)r[r�r7r7r8r]sz$TarFile.getnames.<locals>.<listcomp>)r�r�r7r7r8�getnamesszTarFile.getnamescCs^|�d�|dk r|j}|dkr$|}tj�|�\}}|�tjd�}|�d�}|��}||_ |dkr�|j
stt�|�}q�t�|�}nt�
|���}d}|j}t�|�r�|j|jf} |j
s�|jdkr�| |jkr�||j| kr�t}
|j| }nt}
| dr�||j| <nht�|��rt}
nVt�|��r"t}
nDt�|��r>t}
t�|�}n(t�|��rPt}
nt� |��rbt!}
ndS||_||_"|j#|_$|j%|_&|
tk�r�|j'|_(nd|_(|j)|_*|
|_+||_,t-�r�zt-�.|j$�d|_/Wnt0k
�r�YnXt1�rzt1�2|j&�d|_3Wnt0k
�rYnX|
tt!fk�rZt4td��rZt4td��rZt�5|j6�|_7t�8|j6�|_9|S) a�Create a TarInfo object from the result of os.stat or equivalent
on an existing file. The file is either named by `name', or
specified as a file object `fileobj' with a file descriptor. If
given, `arcname' specifies an alternative name for the file in the
archive, otherwise, the name is taken from the 'name' attribute of
'fileobj', or the 'name' argument. The name should be a text
string.
�awxNr�r�r#r�major�minor):r�r�r{r%�
splitdriver��sep�lstripr�r�r��lstat�stat�fstat�fileno�st_mode�S_ISREG�st_ino�st_dev�st_nlinkr�rhr��S_ISDIRr��S_ISFIFOrn�S_ISLNKrf�readlink�S_ISCHRrj�S_ISBLKrlr��st_uidr)�st_gidr*�st_sizer'�st_mtimer(r�r��pwd�getpwuidr+r��grpZgetgrgidr,r�r��st_rdevr�r�r�)r�r��arcnamer�Zdrvr�Zstatresr�Zstmd�inoder�r7r7r8�
gettarinfo s�
��
zTarFile.gettarinfoT)r�cCs�|��|dkr|}|D]�}|r�tt�|j��td|jp>|j|jpH|jf�|� �s`|�
�rztdd|j|jf�ntd|j
�tdt�|j�dd��t|j|��r�dnd �|r�|��r�td
|j�|��r�td|j�t�qdS)aPrint a table of contents to sys.stdout. If `verbose' is False, only
the names of the members are printed. If it is True, an `ls -l'-like
output is produced. `members' is optional and must be a subset of the
list returned by getmembers().
Nz%s/%sz%10sz%d,%dz%10dz%d-%02d-%02d %02d:%02d:%02dr�r�r�z-> zlink to )r�rlr�r�r�r+r)r,r*rkrmr�r�r'r�� localtimer(r�r2rgr�rirk)r��verboser�r�r7r7r8rYls0
���zTarFile.list��filterc Cs6|�d�|dkr|}|jdk rFtj�|�|jkrF|�dd|�dS|�d|�|�||�}|dkrz|�dd|�dS|dk r�||�}|dkr�|�dd|�dS|��r�t|d��}|� ||�W5QRXn`|�
��r(|� |�|�r2tt�|��D]*}|j
tj�||�tj�||�||d �q�n
|� |�dS)
a!Add the file `name' to the archive. `name' may be any type of file
(directory, fifo, symbolic link, etc.). If given, `arcname'
specifies an alternative name for the file in the archive.
Directories are added recursively by default. This can be avoided by
setting `recursive' to False. `filter' is a function
that expects a TarInfo object argument and returns the changed
TarInfo object, if it returns None the TarInfo object will be
excluded from the archive.
r�Nr$ztarfile: Skipped %rr#ztarfile: Unsupported type %rztarfile: Excluded %rrxr�)r�r�r{r%r��_dbgr�rBr��addfiler2r��listdir�addr�)r�r�r�� recursiver�r��fr7r7r8r��s8
�
zTarFile.addcCs�|�d�t�|�}|�|j|j|j�}|j�|�|jt |�7_|j
}|dk r�t||j|j|d�t
|jt�\}}|dkr�|j�tt|�|d7}|j|t7_|j�|�dS)aAdd the TarInfo object `tarinfo' to the archive. If `fileobj' is
given, it should be a binary file, and tarinfo.size bytes are read
from it and added to the archive. You can create TarInfo objects
directly, or by using gettarinfo().
r�N)rarr#)r�rrrSr5r6r�r^r�r1r�r[r'r\r�r2r�r�)r�r�r�rWrarbrcr7r7r8r��s
zTarFile.addfile�.��
numeric_ownercCs�g}|dkr|}|D]>}|��r:|�|�t�|�}d|_|j|||��|d�q|jdd�d�|��|D]�}tj� ||j
�}z,|j|||d�|�||�|�
||�Wqptk
r�}z"|jdkrЂn|�dd |�W5d}~XYqpXqpdS)
a�Extract all members from the archive to the current working
directory and set owner, modification time and permissions on
directories afterwards. `path' specifies a different directory
to extract to. `members' is optional and must be a subset of the
list returned by getmembers(). If `numeric_owner` is True, only
the numbers for user/group names are used and not the names.
N��� set_attrsr�cSs|jSr�r�)r{r7r7r8�<lambda>�r�z$TarFile.extractall.<locals>.<lambda>r�r�r#�tarfile: %s)r2r�rr��extract�sort�reverser{r%r�r��chown�utime�chmodr
r�r�)r�r%r�r�Zdirectoriesr��dirpathr�r7r7r8�
extractall�s.
�
zTarFile.extractallr�c
Cs|�d�t|t�r |�|�}n|}|��r>tj�||j�|_ z"|j
|tj�||j�||d�Wn�tk
r�}zH|j
dkr��n6|jdkr�|�dd|j�n|�dd|j|jf�W5d}~XYnBtk
�r}z"|j
dkr�n|�dd|�W5d}~XYnXdS)a�Extract a member from the archive to the current working directory,
using its full name. Its file information is extracted as accurately
as possible. `member' may be a filename or a TarInfo object. You can
specify a different directory using `path'. File attributes (owner,
mtime, mode) are set unless `set_attrs' is False. If `numeric_owner`
is True, only the numbers for user/group names are used and not
the names.
rxr�rNr#r�ztarfile: %s %r)r�rrr�rir{r%r�r�r��_extract_memberr�r�r��filenamer��strerrorr
)r��memberr%r�r�r�r�r7r7r8r�s*
�
(
zTarFile.extractcCs�|�d�t|t�r |�|�}n|}|��s6|jtkrB|�||�S|��sR|� �rzt|j
t�rhtd��q~|�
|�|��SndSdS)z�Extract a member from the archive as a file object. `member' may be
a filename or a TarInfo object. If `member' is a regular file or a
link, an io.BufferedReader object is returned. Otherwise, None is
returned.
rxz'cannot extract (sym)link as file objectN)r�rrr�rBr�rC�
fileobjectrirgr�r�r �extractfile�_find_link_target)r�r�r�r7r7r8r�&s
zTarFile.extractfilecCsT|�d�}|�dtj�}tj�|�}|r>tj�|�s>t�|�|��sN|� �rh|�
dd|j|jf�n|�
d|j�|�
�r�|�||�n�|��r�|�||�nx|��r�|�||�nb|��s�|��r�|�||�nD|��s�|� �r�|�||�n&|jtk�r|�||�n|�||�|�rP|�|||�|� ��sP|�||�|�||�dS)z\Extract the TarInfo object tarinfo to a physical
file called targetpath.
r�r#z%s -> %sN)r3r�r{r�r%�dirnamer�makedirsrirgr�r�r�rB�makefiler2�makedirro�makefiforkrm�makedev�makelinkr�rC�makeunknownr�r�r�)r�r��
targetpathr�r�Z upperdirsr7r7r8r�Es4
zTarFile._extract_membercCs*zt�|d�Wntk
r$YnXdS)z,Make a directory called targetpath.
r�N)r{�mkdir�FileExistsError�r�r�r�r7r7r8r�vszTarFile.makedirc Cs�|j}|�|j�|j}t|d��b}|jdk rn|jD]"\}}|�|�t|||t|�q4|�|j�|� �nt|||jt|�W5QRXdS)z'Make a file called targetpath.
ryN)
r�r�r�r�r�r�r[rr'�truncate)r�r�r��sourcera�targetr�r'r7r7r8r��s
zTarFile.makefilecCs"|�||�|�dd|j�dS)zYMake a file from a TarInfo object with an unknown type
at targetpath.
r#z9tarfile: Unknown file type %r, extracted as regular file.N)r�r�r�r�r7r7r8r��s�zTarFile.makeunknowncCs"ttd�rt�|�ntd��dS)z'Make a fifo called targetpath.
�mkfifozfifo not supported by systemN)r�r{r�r
r�r7r7r8r��s
zTarFile.makefifocCs^ttd�rttd�std��|j}|��r6|tjO}n
|tjO}t�||t� |j
|j��dS)z<Make a character or block device called targetpath.
�mknodr�z'special devices not supported by systemN)r�r{r
r�rmr��S_IFBLK�S_IFCHRr�r�r�r�)r�r�r�r�r7r7r8r��s
�zTarFile.makedevcCs�zb|��r0tj�|�r t�|�t�|j|�n0tj�|j�rNt� |j|�n|�
|�|�|�WnHtk
r�z|�
|�|�|�Wnt
k
r�td��YnXYnXdS)z�Make a (symbolic) link called targetpath. If it cannot be created
(platform limitation), we try to make a copy of the referenced file
instead of a link.
z%unable to resolve link inside archiveN)rgr{r%�lexists�unlink�symlinkr�rr��linkr�r��symlink_exceptionr�r
r�r7r7r8r��s"
��zTarFile.makelinkcCs�ttd�r�t��dkr�|j}|j}|s�ztr<t�|j�d}Wntk
rRYnXzt rjt �
|j�d}Wntk
r�YnXz4|��r�ttd�r�t�
|||�nt�|||�Wntk
r�td��YnXdS)z�Set owner of targetpath according to tarinfo. If numeric_owner
is True, use .gid/.uid instead of .gname/.uname. If numeric_owner
is False, fall back to .gid/.uid when the search based on name
fails.
�geteuidrr$�lchownzcould not change ownerN)r�r{rr*r)r�Zgetgrnamr,r�r��getpwnamr+rgrr�r�r
)r�r�r�r��g�ur7r7r8r��s(z
TarFile.chowncCs4zt�||j�Wntk
r.td��YnXdS)zASet file permissions of targetpath according to tarinfo.
zcould not change modeN)r{r�r�r�r
r�r7r7r8r��sz
TarFile.chmodcCsHttd�sdSzt�||j|jf�Wntk
rBtd��YnXdS)zBSet modification time of targetpath according to tarinfo.
r�Nz"could not change modification time)r�r{r�r(r�r
r�r7r7r8r��s
z
TarFile.utimec
Cs�|�d�|jdk r$|j}d|_|S|j|j��krZ|j�|jd�|j�d�sZtd��d}z|j� |�}W�q�t
k
r�}z6|jr�|�dd|j|f�|jt
7_WY�q^W5d}~XY�q�tk
�r6}zR|j�r|�dd|j|f�|jt
7_WY� q^n|jdk�r&tt|���W5d}~XYn�tk
�r^|jdk�rZtd��Ynjtk
�r�}z|jdk�r�tt|���W5d}~XYn0tk
�r�}ztt|���W5d}~XYnX�q�q^|dk �r�|j�|�nd |_|S)
z�Return the next member of the archive as a TarInfo object, when
TarFile is opened for reading. Return None if there is no more
available.
ZraNr#rYr$z0x%X: %srz
empty fileT)r�r�r�r�r�r�r]rr�r<rtr�r�r�rKrrrrsrur�r�r�)r��mr�r�r7r7r8rG�sJ
zTarFile.nextcCsn|��}|dk r"|d|�|��}|r2tj�|�}t|�D].}|rRtj�|j�}n|j}||kr:|Sq:dS)z}Find an archive member by name from bottom to top.
If tarinfo is given, it is used as the starting point.
N)r��indexr{r%�normpath�reversedr�)r�r�r�� normalizer�r��member_namer7r7r8r�/ szTarFile._getmembercCs|��}|dkrqqd|_dS)zWRead through the entire archive file and look for readable
members.
NT)rGr�)r�r�r7r7r8r�F sz
TarFile._loadcCs:|jrtd|jj��|dk r6|j|kr6td|j��dS)znCheck if TarFile is still open, and if the operation's mode
corresponds to TarFile's mode.
z%s is closedNzbad operation for mode %r)r�r�r�rnr�)r�r�r7r7r8r�P szTarFile._checkcCs`|��r.d�tdtj�|j�|jf��}d}n
|j}|}|j||dd�}|dkr\t d|��|S)zZFind the target member of a symlink or hardlink member in the
archive.
r�NT)r�rzlinkname %r not found)
rgr�r�r{r%r�r�r�r�r�)r�r�r��limitr�r7r7r8r�Y s zTarFile._find_link_targetccs�|jr|jEdHdSd}|jdk r:|��}|d7}|V|t|j�krT|j|}n"|jsr|��}|svd|_dSndS|d7}|Vq:dS)z$Provide an iterator object.
Nrr#T)r�r�r�rGr1)r�rr�r7r7r8�__iter__l s$
zTarFile.__iter__cCs||jkrt|tjd�dS)z.Write debugging output to sys.stderr.
��fileN)r�rkri�stderr)r��level�msgr7r7r8r�� s
zTarFile._dbgcCs|��|Sr�)r�r�r7r7r8� __enter__� szTarFile.__enter__cCs,|dkr|��n|js"|j��d|_dSr�)r�r�r�r�)r�r�r$� tracebackr7r7r8�__exit__� s
zTarFile.__exit__)
NrxNNNNNNr�NNNN)rxN)rxNr�)rxNr�)rxNN)NNN)T)NT)N)r�N)r�T)TF)NF)N)8rnrorprqr�r�r�r�rrSrr5r6rr�r�r�r�rvr�rr�r�r�r�r�r�r�r�r�r�rYr�r�r�r�r�r�r�r�r�r�r�r�r�r�r�rGr�r�r�r�rr�rrr7r7r7r8r�s��
oZ �
c 3
(&�
1
6
cCs2zt|�}|��WdStk
r,YdSXdS)zfReturn True if name points to a tar archive that we
are able to handle, else return False.
TFN)rr�r)r�r�r7r7r8r� sc Cs�ddl}d}|j|d�}|jdddddd �|jd
d�}|jdd
ddd�|jdddddd�|jdddddd�|jddddd�|��}|jdk �r|j}t|�r�t|d�� }|��t |��t
jd�W5QRX|jr�t d �
|��n|�d!d"�
|���n�|jdk �r\|j}t|��rFt�|d#��}|j|jd$�W5QRXn|�d!d"�
|���nr|jdk �r,t|j�d!k�r�|jd}tj}n,t|j�d%k�r�|j\}}n|�d!|���t|��rt�|d#��}|j|d&�W5QRX|j�r*|d'k�rd(�
|�} nd)�
||�} t | �n|�d!d"�
|��n�|jdk �r�|j�d�}
tj�|
�\}}d*d*d+d+d,d,d,d,d-�}
||
k�r�d.|
|nd/}|j}t�|
|��}|D]}|�|��q�W5QRX|j�r�t d0�
|
��dS)1Nrz3A simple command-line interface for tarfile module.)�descriptionz-vz --verbose�
store_trueFzVerbose output)�action�default�helpT)Zrequiredz-lz--list� <tarfile>zShow listing of a tarfile)�metavarrz-ez --extract�+)r z<output_dir>zExtract tarfile into target dir)�nargsr!rz-cz--create)z<name>z<file>zCreate tarfile from sourcesz-tz--testzTest if a tarfile is validrxrz{!r} is a tar archive.r#z{!r} is not a tar archive.
r�)r�r$)r%r�z{!r} file is extracted.z+{!r} file is extracted into {!r} directory.r�r�r�)r�z.tgzz.xzz.txzz.bz2z.tbzz.tbz2z.tb2zw:ryz{!r} file created.)�argparse�ArgumentParser�add_argumentZadd_mutually_exclusive_group�
parse_argsZtestrrr�rkrirr�rS�exitrYrr�r1r{�curdirZformat_helpr�Zcreate�popr%�splitextr�)r$r�parserrO�argsr_r�Ztfr)rZtar_name�_ZextZcompressionsZtar_modeZ tar_files� file_namer7r7r8�main� s��
�
�
�
�
�
�
r0�__main__)^rq�version�
__author__�__credits__�builtinsrr�rir{r�rZr�r�rVrrMr�r�r��AttributeError�NotImplementedErrorrr�� NameError�__all__r2r�r�r rrrrr�r/rhrfrjrlr�rnZCONTTYPErrr0rrr?r
rrrrCrdr4r`rTrrHrar�r�getfilesystemencodingr9r>rNrTrXr[rl� Exceptionrr
rrr rrrrsrtrKrurvr��objectr�r��BufferedReaderr�rrrr0rnr7r7r7r8�<module>s
�����
shD!W