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eW � Z\ Gdb d � d eW � Z] Gdc dd � dd � Z^ de d � Z_ e] j Z df dg � Z` ea dh k r�e` � d S)iz,Read from and write to tar format archives.
z0.9.0u" Lars Gustäbel (lars@gustaebel.de)z5$Date: 2011-02-25 17:42:01 +0200 (Fri, 25 Feb 2011) $z?$Id: tarfile.py 88586 2011-02-25 15:42:01Z marc-andre.lemburg $u4 Gustavo Niemeyer, Niels Gustäbel, Richard Townsend.� )�openN�TarFile�TarInfo�
is_tarfile�TarErrors i � s ustar s ustar 00�d � � 0� 1� 2� 3� 4� 5� 6� 7� L� K� S� x� g� X� � �path�linkpath�size�mtime�uid�gid�uname�gnameZatimeZctime�ntZcezutf-8c C s2 | j | | � } | d | � | t | � t S)z8Convert a string to a null-terminated bytes object.
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s r N���)�find�decode)r& r( r) �pr* r* r+ �nts� s r1 c C s� | d d k r d } x: t t | � d � D]" } | d K} | | | d 7} q- W| d d k r� d t | � d | } nR y1 t | d d � } t | j � p� d d � } Wn t k
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� � Yn X| S) z/Convert a number field to a python number.
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ValueError�InvalidHeaderError)r& �n�ir* r* r+ �nti� s
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z/Convert a python number to a number field.
r r4 r z%0*or6 r5 r2 r3 zoverflow in number field)�bytesr: r% �
GNU_FORMAT� bytearrayr9 �insertr< )r> �digits�formatr& r? r* r* r+ �itn� s $*9 rG c C sB d t t j d | � � } d t t j d | � � } | | f S)a� Calculate the checksum for a member's header by summing up all
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which will be different if there are chars in the buffer with
the high bit set. So we calculate two checksums, unsigned and
signed.
r5 Z
148B8x356BZ
148b8x356b)�sum�structZ unpack_from)�bufZunsigned_chksumZ
signed_chksumr* r* r+ � calc_chksums� s rK c C s� | d k r d S| d k r0 t j | | � d Sd } t | | � \ } } xN t | � D]@ } | j | � } t | � | k r� | d � � | j | � qX W| d k r� | j | � } t | � | k r� | d � � | j | � d S)zjCopy length bytes from fileobj src to fileobj dst.
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rN c C s, d d l } | j d t d � t j | � S)z/Deprecated in this location; use stat.filemode.r Nz$deprecated in favor of stat.filemoder )�warnings�warn�DeprecationWarning�stat�filemode)�moderW r* r* r+ r[ � s
r[ c C sP t t j d d � } | d k r< | j | d � j | � } t | d d �d S)Nr( �backslashreplace�end� )�getattr�sys�stdoutr# r/ �print)r& r( r* r* r+ � _safe_print s rd c @ s e Z d Z d Z d S)r zBase exception.N)�__name__�
__module__� __qualname__�__doc__r* r* r* r+ r s c @ s e Z d Z d Z d S)� ExtractErrorz%General exception for extract errors.N)re rf rg rh r* r* r* r+ ri s ri c @ s e Z d Z d Z d S)� ReadErrorz&Exception for unreadable tar archives.N)re rf rg rh r* r* r* r+ rj s rj c @ s e Z d Z d Z d S)�CompressionErrorz.Exception for unavailable compression methods.N)re rf rg rh r* r* r* r+ rk s rk c @ s e Z d Z d Z d S)� StreamErrorz=Exception for unsupported operations on stream-like TarFiles.N)re rf rg rh r* r* r* r+ rl s rl c @ s e Z d Z d Z d S)� HeaderErrorz!Base exception for header errors.N)re rf rg rh r* r* r* r+ rm s rm c @ s e Z d Z d Z d S)�EmptyHeaderErrorz Exception for empty headers.N)re rf rg rh r* r* r* r+ rn s rn c @ s e Z d Z d Z d S)�TruncatedHeaderErrorz Exception for truncated headers.N)re rf rg rh r* r* r* r+ ro s ro c @ s e Z d Z d Z d S)�EOFHeaderErrorz"Exception for end of file headers.N)re rf rg rh r* r* r* r+ rp # s rp c @ s e Z d Z d Z d S)r= z Exception for invalid headers.N)re rf rg rh r* r* r* r+ r= & s r= c @ s e Z d Z d Z d S)�SubsequentHeaderErrorz3Exception for missing and invalid extended headers.N)re rf rg rh r* r* r* r+ rq ) s rq c @ sF e Z d Z d Z d d � Z d d � Z d d � Z d d � Z d
S) �
_LowLevelFilez�Low-level file object. Supports reading and writing.
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access.
c C sb d t j d t j t j Bt j Bi | } t t d � rF | t j O} t j | | d � | _ d S)N�r�w�O_BINARYi� ) �os�O_RDONLY�O_WRONLY�O_CREAT�O_TRUNC�hasattrru r �fd)�self�namer\ r* r* r+ �__init__6 s
z_LowLevelFile.__init__c C s t j | j � d S)N)rv �closer| )r} r* r* r+ r� ? s z_LowLevelFile.closec C s t j | j | � S)N)rv rP r| )r} r r* r* r+ rP B s z_LowLevelFile.readc C s t j | j | � d S)N)rv rQ r| )r} r& r* r* r+ rQ E s z_LowLevelFile.writeN)re rf rg rh r r� rP rQ r* r* r* r+ rr 0 s
rr c @ s� e Z d Z d Z d d � Z d d � Z d d � Z d d � Z d
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d d � Z d d d � Z d d d � Z
d d � Z d d � Z d S) �_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
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sys.stdout, a socket, a tape device etc.
_Stream is intended to be used only internally.
c C s{ d | _ | d k r- t | | � } d | _ | d k rQ t | � } | j � } | pZ d | _ | | _ | | _ | | _ | | _ d | _ d | _
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k rd | _ | j � | _ | j | _ qI| j � | _ n | d k rIt d | � � Wn* | j sf| j j � d | _ � Yn Xd S)z$Construct a _Stream object.
TNF�*� � r �gzz zlib module is not availablers �bz2zbz2 module is not available�xzz lzma module is not available�tarzunknown compression type %r) � _extfileobjrr � _StreamProxy� getcomptyper~ r\ �comptype�fileobj�bufsizerJ �pos�closed�zlib� ImportErrorrk �crc32�crc�
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z_Stream.__init__c C s' t | d � r# | j r# | j � d S)Nr� )r{ r� r� )r} r* r* r+ �__del__� s z_Stream.__del__c C s� | j j d | j j | j j | j j d � | _ t j d t t j � � � } | j
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z_Stream._init_write_gzc C sq | j d k r* | j j | | j � | _ | j t | � 7_ | j d k r` | j j | � } | j | � d S)z&Write string s to the stream.
r� r� N) r� r� r� r� r� r$ r� �compressr� )r} r& r* r* r+ rQ � s z
_Stream.writec C sk | j | 7_ xU t | j � | j k rf | j j | j d | j � � | j | j d � | _ q Wd S)z]Write string s to the stream if a whole new block
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N)rJ r$ r� r� rQ )r} r& r* r* r+ Z__write� s z_Stream.__writec C s� | j r
d Sd | _ z� | j d k rO | j d k rO | j | j j � 7_ | j d k r� | j r� | j j | j � d | _ | j d k r� | j j t j d | j
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_Stream.closec C sO | j j | j j � | _ d | _ | j d � d k rF t d � � | j d � d k rg t d � � t | j d � � } | j d � | d @r� t | j d � � d
t | j d � � } | j | � | d @r x' | j d � } | s� | t
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r� r s �znot a gzip filer s z unsupported compression method� � r5 r4 rL N) r� Z
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_Stream__readrj rk �ordrP r% )r} ZflagZxlenr& r* r* r+ r� � s.
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z_Stream._init_read_gzc C s | j S)z3Return the stream's file pointer position.
)r� )r} r* r* r+ �tell� s z _Stream.tellr c C s| | | j d k ri t | | j | j � \ } } x$ t | � D] } | j | j � q? W| j | � n t d � � | j S)zXSet the stream's file pointer to pos. Negative seeking
is forbidden.
r z seeking backwards is not allowed)r� rO r� r9 rP rl )r} r� rT rU r? r* r* r+ �seek� s z _Stream.seekNc C sy | d k rQ g } x* | j | j � } | s. P| j | � q Wd j | � } n | j | � } | j t | � 7_ | S)z�Return the next size number of bytes from the stream.
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up to EOF.
Nr� )�_readr� �append�joinr� r$ )r} r �trJ r* r* r+ rP s z _Stream.readc C s� | j d k r | j | � St | j � } x� | | k r� | j | j � } | sS Py | j j | � } Wn! | j k
r� t d � � Yn X| j | 7_ | t | � 7} q. W| j d | � } | j | d � | _ | S)z+Return size bytes from the stream.
r� zinvalid compressed dataN) r� r� r$ r� r� r� Z
decompressrS rj )r} r �crJ r* r* r+ r� s
z
_Stream._readc C s� t | j � } xK | | k r\ | j j | j � } | s: P| j | 7_ | t | � 7} q W| j d | � } | j | d � | _ | S)zsReturn size bytes from stream. If internal buffer is empty,
read another block from the stream.
N)r$ rJ r� rP r� )r} r r� rJ r* r* r+ Z__read, s z_Stream.__read)re rf rg rh r r� r� rQ r� r� r� r� r� rP r� r� r* r* r* r+ r� H s F
r� c @ sF e Z d Z d Z d d � Z d d � Z d d � Z d d � Z d
S) r� zsSmall proxy class that enables transparent compression
detection for the Stream interface (mode 'r|*').
c C s" | | _ | j j t � | _ d S)N)r� rP � BLOCKSIZErJ )r} r� r* r* r+ r A s z_StreamProxy.__init__c C s | j j | _ | j S)N)r� rP rJ )r} r r* r* r+ rP E s z_StreamProxy.readc C sj | j j d � r d S| j d d � d k rL | j d d � d k rL d S| j j d � rb d Sd
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startswith)r} r* r* r+ r� I s 2z_StreamProxy.getcomptypec C s | j j � d S)N)r� r� )r} r* r* r+ r� S s z_StreamProxy.closeN)re rf rg rh r rP r� r� r* r* r* r+ r� < s
r� c @ s� e Z d Z d Z d d d � Z d d � Z d d � Z d d
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d d � Z d d � Z d S)� _FileInFilezA thin wrapper around an existing file object that
provides a part of its data as an individual file
object.
Nc C s# | | _ | | _ | | _ d | _ t | d d � | _ d | _ | d k r] d | f g } d | _ g | _ d } | j } xp | D]h \ } } | | k r� | j j d | | d f � | j j d | | | | f � | | 7} | | } q� W| | j k r | j j d | | j d f � d S)Nr r~ FT)
r� �offsetr �positionr` r~ r� � map_index�mapr� )r} r� r� r Z blockinfoZlastposZrealposr* r* r+ r ` s(
z_FileInFile.__init__c C s d S)Nr* )r} r* r* r+ r� y s z_FileInFile.flushc C s d S)NTr* )r} r* r* r+ �readable| s z_FileInFile.readablec C s d S)NFr* )r} r* r* r+ �writable s z_FileInFile.writablec C s
| j j � S)N)r� �seekable)r} r* r* r+ r� � s z_FileInFile.seekablec C s | j S)z*Return the current file position.
)r� )r} r* r* r+ r� � s z_FileInFile.tellc C s� | t j k r0 t t | d � | j � | _ n� | t j k r� | d k rg t | j | d � | _ q� t | j | | j � | _ nC | t j k r� t t | j | | j � d � | _ n t d � � | j S)z(Seek to a position in the file.
r zInvalid argument) �io�SEEK_SET�min�maxr r� �SEEK_CUR�SEEK_ENDr< )r} r� �whencer* r* r+ r� � s ! ( z_FileInFile.seekc C sf | d k r | j | j } n t | | j | j � } d } x!| d k raxs | j | j \ } } } } | | j k o� | k n r� PqP | j d 7_ | j t | j � k rP d | _ qP Wt | | | j � } | r7| j j | | j | � | j j | � } t | � | k r*t d � � | | 7} n | t
| 7} | | 8} | j | 7_ qA W| S)z!Read data from the file.
Nr� r r zunexpected end of data) r r� r� r� r� r$ r� r� rP rj r% ) r} r rJ �data�start�stopr� r' rV r* r* r+ rP � s.
z_FileInFile.readc C s5 | j t | � � } | | d t | � � <t | � S)N)rP r$ )r} rV rJ r* r* r+ �readinto� s z_FileInFile.readintoc C s
d | _ d S)NT)r� )r} r* r* r+ r� � s z_FileInFile.close)re rf rg rh r r� r� r� r� r� r� r� r� rP r� r� r* r* r* r+ r� Z s r� c s" e Z d Z � f d d � Z � S)� ExFileObjectc s5 t | j | j | j | j � } t � j | � d S)N)r� r� � offset_datar �sparse�superr )r} �tarfile�tarinfor� )� __class__r* r+ r � s zExFileObject.__init__)re rf rg r r* r* )r� r+ r� � s r� c @ sP e Z d Z d Z di Z d d d � Z d d � Z d d � Z e e e � Z d d � Z
d d � Z e e
e � Z d! d" � Z
d# d$ � Z e e d% d& d' � Z d( d) � Z d* d+ � Z d, d- � Z e d. d/ � � Z d0 d1 � Z e d2 d3 � � Z e d4 d5 � � Z e d6 d7 � � Z e d8 d9 � � Z e d: d; � � Z e d< d= � � Z d> d? � Z d@ dA � Z dB dC � Z! dD dE � Z" dF dG � Z# dH dI � Z$ dJ dK � Z% dL dM � Z& dN dO � Z' dP dQ � Z( dR dS � Z) dT dU � Z* dV dW � Z+ dX dY � Z, dZ d[ � Z- d\ d] � Z. d^ d_ � Z/ d` da � Z0 db dc � Z1 dd de � Z2 df dg � Z3 dh S)jr a Informational 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.
r~ r\ r r r r �chksum�type�linknamer r! �devmajor�devminorr� r� � pax_headersr� r� �_sparse_structs� _link_targetr� c C s� | | _ d | _ d | _ d | _ d | _ d | _ d | _ t | _ d | _ d | _
d | _ d | _ d | _
d | _ d | _ d | _ i | _ d S)zXConstruct a TarInfo object. name is the optional name
of the member.
i� r r� N)r~ r\ r r r r r� �REGTYPEr� r� r r! r� r� r� r� r� r� )r} r~ r* r* r+ r � s" zTarInfo.__init__c C s | j S)N)r~ )r} r* r* r+ �_getpath� s zTarInfo._getpathc C s
| | _ d S)N)r~ )r} r~ r* r* r+ �_setpath� s zTarInfo._setpathc C s | j S)N)r� )r} r* r* r+ � _getlinkpath� s zTarInfo._getlinkpathc C s
| | _ d S)N)r� )r} r� r* r* r+ � _setlinkpath� s zTarInfo._setlinkpathc C s d | j j | j t | � f S)Nz<%s %r at %#x>)r� re r~ �id)r} r* r* r+ �__repr__ s zTarInfo.__repr__c C s� d | j d | j d @d | j d | j d | j d | j d | j d | j d
| j d | j d | j
d
| j d | j i
} | d t
k r� | d j d � r� | d d 7<| S)z9Return the TarInfo's attributes as a dictionary.
r~ r\ i� 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} �infor* r* r+ �get_info s
$zTarInfo.get_info�surrogateescapec C sv | j � } | t k r+ | j | | | � S| t k rJ | j | | | � S| t k rf | j | | � St d � � d S)z<Return a tar header as a string of 512 byte blocks.
zinvalid formatN)r� � USTAR_FORMAT�create_ustar_headerrB �create_gnu_header�
PAX_FORMAT�create_pax_headerr< )r} rF r( r) r� r* r* r+ �tobuf s z
TarInfo.tobufc C s� t | d <t | d j | | � � t k r8 t d � � t | d j | | � � t k r� | j | d | | � \ | d <| d <| j | t | | � S)z3Return the object as a ustar header block.
�magicr� zlinkname is too longr~ �prefix) � POSIX_MAGICr$ r# � LENGTH_LINKr< � LENGTH_NAME�_posix_split_name�_create_headerr� )r} r� r( r) r* r* r+ r� * s
" "'zTarInfo.create_ustar_headerc C s� t | d <d } t | d j | | � � t k rR | | j | d t | | � 7} t | d j | | � � t k r� | | j | d t | | � 7} | | j | t | | � S)z:Return the object as a GNU header block sequence.
r� r� r� r~ )
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C s� t | d <| j j � } x� d d t f d d t f d d f D]� \ } } } | | k r\ q> y | | j d d
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r� r~ r r� r r � r! r6 r7 r r4 r r � r r r r� r� )r r r� )r! r! r� �r r4 �r r4 �r r� �r r� )r� r� r� r� )r� r� �copyr� r� r# �UnicodeEncodeErrorr$ �
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zutf-8)r �XGLTYPE)�clsr� r* r* r+ �create_pax_global_headerv s z TarInfo.create_pax_global_headerc C s� | j d � } x� t d t | � � D]u } d j | d | � � } d j | | d � � } t | j | | � � t k r% t | j | | � � t k r% Pq% Wt d � � | | f S)zUSplit a name longer than 100 chars into a prefix
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componentsr? r� r* r* r+ r� | s zTarInfo._posix_split_namec C s� t | j d d � d | | � t | j d d � d @d | � t | j d d � d | � t | j d d � d | � t | j d
d � d | � t | j d d � d | � d
| j d t � t | j d d � d | | � | j d t � t | j d d � d | | � t | j d d � d | | � t | j d d � d | � t | j d d � d | � t | j d d � d | | � g } t j d t d j | � � } t | t d � � d } | d d � t
d | d � | d d � } | S)!z�Return a header block. info is a dictionary with file
information, format must be one of the *_FORMAT constants.
r~ r� r r\ r i� r4 r r r r� r s r� r� r� r r� r! r� r� r� r z%dsr� Nil z%06o r6 ie i����i����) r, �getrG r� r� rI r� r� r� rK rA )r� rF r( r) �partsrJ r� r* r* r+ r� � s& $ /zTarInfo._create_headerc C s= t t | � t � \ } } | d k r9 | t | t 7} | S)zdReturn the string payload filled with zero bytes
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r )rO r$ r� r% )ZpayloadrT rU r* r* r+ �_create_payload� s zTarInfo._create_payloadc C sm | j | | � t } i } d | d <| | d <t | � | d <t | d <| j | t | | � | j | � S)zTReturn a GNUTYPE_LONGNAME or GNUTYPE_LONGLINK sequence
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rN d } PYq Xq Wd } | ri | d 7} x� | j � D]� \ } } | j d � } | r� | j | d � } n | j d � } t | � t | � d } d } }
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| d d � | | � | _ t | d d � � | _ t | d d
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t | | d | d � � } Wn t k
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r z empty headerztruncated headerzend of file header� � z bad checksumr �l �t �| � � i i i) iI iQ iY i� r� i� r� r� � i� i� i� )$r$ rn r� ro �countr% rp r@ rK r= r1 r~ r\ r r r r r� r� r� r r! r� r� �AREGTYPEr� r� �GNUTYPE_SPARSEr9 r< r� �boolr� �isdir�rstrip� GNU_TYPES)r rJ r( r) r� �objr� r� �structsr? r� �numbytes�
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) r� rP r� r( r( r) r� r� � _proc_member)r r� rJ r# r* r* r+ � fromtarfile5 s zTarInfo.fromtarfilec C st | j t t f k r" | j | � S| j t k r> | j | � S| j t t t f k rc | j | � S| j
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zTarInfo._proc_sparsec C s� | j j | j | j � � } | j t k r9 | j } n | j j � } t j d | � } | d k r� | j
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hdrcharsetZBINARYs (\d+) ([^=]+)=r r z missing or bad subsequent headerzGNU.sparse.mapzGNU.sparse.sizezGNU.sparse.major�1zGNU.sparse.minorr8 r )$r� rP r2 r r� r r� r� �re�search�groupr/ r r( �compile�match�groupsr: r^ r� �_decode_pax_fieldr) �PAX_NAME_FIELDSr* rm rq �_proc_gnusparse_01�_proc_gnusparse_00�_proc_gnusparse_10r r- r3 r� r� r0 r1 )r} r� rJ r� r< r6 r( Zregexr� r' r r r4 r� r* r* r+ r. � s` .
* zTarInfo._proc_paxc C s� g } x6 t j d | � D]" } | j t | j d � � � q Wg } x6 t j d | � D]" } | j t | j d � � � qX Wt t | | � � | _ d S)z?Process a GNU tar extended sparse header, version 0.0.
s \d+ GNU.sparse.offset=(\d+)\nr s \d+ GNU.sparse.numbytes=(\d+)\nN)r8 �finditerr� r: r: �list�zipr� )r} r4 r� rJ Zoffsetsr< r% r* r* r+ rA s zTarInfo._proc_gnusparse_00c C sV d d � | d j d � D� } t t | d d d � | d d d � � � | _ d S)z?Process a GNU tar extended sparse header, version 0.1.
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<listcomp> s z.TarInfo._proc_gnusparse_01.<locals>.<listcomp>zGNU.sparse.map�,Nr r )r rD rE r� )r} r4 r� r� r* r* r+ r@ s zTarInfo._proc_gnusparse_01c C s� d } g } | j j t � } | j d d � \ } } t | � } xg t | � | d k r� d | k r} | | j j t � 7} | j d d � \ } } | j t | � � qE W| j j � | _ t t
| d d d � | d d d � � � | _ d S)z?Process a GNU tar extended sparse header, version 1.0.
Ns
r r ) r� rP r� r r: r$ r� r� r� rD rE r� )r} r4 r� r� Zfieldsr� rJ Znumberr* r* r+ rB s zTarInfo._proc_gnusparse_10c
C s x� | j � D]� \ } } | d k r8 t | d | � q
| d k r] t | d t | � � q
| d k r� t | d t | � � q
| t k r
| t k r� y t | | � } Wn t k
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W| j � | _ d S) zoReplace fields with supplemental information from a previous
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zGNU.sparse.namer zGNU.sparse.sizer zGNU.sparse.realsizer r� N) r �setattrr: �
PAX_FIELDS�PAX_NUMBER_FIELDSr< r! r� r� )r} r� r( r) r r r* r* r+ r3 ! s"
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r8 | j | | � SYn Xd S)z1Decode a single field from a pax record.
r7 N)r/ �UnicodeDecodeError)r} r r( Zfallback_encodingZfallback_errorsr* r* r+ r> 8 s
zTarInfo._decode_pax_fieldc C s- t | t � \ } } | r% | d 7} | t S)z_Round up a byte count by BLOCKSIZE and return it,
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r )rO r� )r} r rT rU r* r* r+ r2 @ s
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| j t k S)N)r� �CHRTYPE)r} r* r* r+ �ischrS s z
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| j t k S)N)r� �BLKTYPE)r} r* r* r+ �isblkU s z
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| j d k S)N)r� )r} r* r* r+ �issparseY s zTarInfo.issparsec C s | j t t t f k S)N)r� rT rV rX )r} r* r* r+ �isdev[ s z
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f c @ s� e Z d Z d Z d Z d Z d Z d Z e Z e
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� � Z e d d d d d � � Z e d d d d d � � Z e d d d d d � � Z d d d d d d d d i Z d d � Z d d � Z d! d" � Z d# d$ � Z d d d d% d& � Z d' d( d d) d* �Z d d' d d+ d d, d- �Z d d. d/ � Z! d0 d d1 d d2 d3 �Z" d4 d' d1 d d5 d6 �Z# d7 d8 � Z$ d' d d9 d: � Z% d; d< � Z& d= d> � Z' d? d@ � Z( dA dB � Z) dC dD � Z* dE dF � Z+ dG dH � Z, dI dJ � Z- dK dL � Z. dM dN � Z/ d d dO dP � Z0 dQ dR � Z1 d dS dT � Z2 dU dV � Z3 dW dX � Z4 dY dZ � Z5 d[ d\ � Z6 d] d^ � Z7 d S)_r z=The TarFile Class provides an interface to tar archives.
r Fr Nrs r� c
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| _ | j j � | _ i | _ y:| j d k rZd | _ | j � | _ | j d k rx� | j j! | j � y& | j j" | � } | j j# | � Wqlt$ k
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r} z t& t | � � � WYd d } ~ XqlXqlW| j d k rid | _ | j ri| j j' | j j( � � } | j j) | � | j t* | � 7_ Wn* | j s�| j j+ � d | _ � Yn Xd S)a� Open an (uncompressed) tar archive `name'. `mode' is either 'r' to
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file or 'w' to create a new file overwriting an existing one. `mode'
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If `fileobj' is given, it is used for reading or writing data. If it
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`fileobj' is not closed, when TarFile is closed.
rs �rb�azr+brt �wbrG Zxbz!mode must be 'r', 'a', 'w' or 'x'FNr~ r\ T)rc rt rG ),r< r\ �_moderv r �exists� bltn_openr� r{ r r~ r rA �abspathr� rF r� � dereference� ignore_zerosr( r) r� r� �debug�
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zTarFile.__init__c sY | r | r t d � � | d k r� � f d d � } x� t � j d | �D]� } t � � j | � } | d k r� | j � } y | | d | | � SWqN t t f k
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z! | d k r� | j | � wN WYd d }
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S| d k rI� j | | | | � St d � � d S)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 openrs �r:*c s � j | d k S)N�taropen)� OPEN_METH)r� )r r* r+ �not_compressed s z$TarFile.open.<locals>.not_compressed�keyNz%file could not be opened successfully�:r r� zunknown compression type %r�|rt zmode must be 'r' or 'w'Frc rG zundiscernible mode)rs rr )rs rt )rc rt rG )
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z TarFile.openc K s+ | d k r t d � � | | | | | � S)zCOpen uncompressed tar archive name for reading or writing.
rs rc rt rG z!mode must be 'r', 'a', 'w' or 'x')rs rc rt rG )r< )r r~ r\ r� rz r* r* r+ rs A s zTarFile.taropenr� c K s) | d k r t d � � y d d l } | j Wn$ t t f k
rU t d � � Yn Xy | j | | d | | � } Wn9 t k
r� | d k r� | d k r� t d � � � Yn Xy | j | | | | � } WnK t k
r| j � | d k r t d � � � Yn | j � � Yn Xd
| _
| S) zkOpen gzip compressed tar archive name for reading or writing.
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rs rt rG z mode must be 'r', 'w' or 'x'r Nz gzip module is not availablerV znot a gzip fileF)rs rt rG ) r< �gzipZGzipFiler� �AttributeErrorrk r� rj rs r� r� )r r~ r\ r� �
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zTarFile.gzopenc K s� | d k r t d � � y d d l } Wn t k
rH t d � � Yn X| j | pX | | d | �} y | j | | | | � } WnQ t t f k
r� | j � | d k r� t d � � � Yn | j � � Yn Xd
| _
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rs rt rG z mode must be 'r', 'w' or 'x'r Nzbz2 module is not availabler znot a bzip2 fileF)rs rt rG ) r< r� r� rk ZBZ2Filers r� �EOFErrorr� rj r� )r r~ r\ r� r rz r� r� r* r* r+ �bz2openk s(
zTarFile.bz2openc K s� | d k r t d � � y d d l } Wn t k
rH t d � � Yn X| j | pX | | d | �} y | j | | | | � } WnT | j t f k
r� | j � | d k r� t d � � � Yn | j � � Yn Xd
| _
| S) zkOpen lzma compressed tar archive name for reading or writing.
Appending is not allowed.
rs rt rG z mode must be 'r', 'w' or 'x'r Nz lzma module is not available�presetznot an lzma fileF)rs rt rG ) r< r� r� rk ZLZMAFilers r� r� r� rj r� )r r~ r\ r� r� rz r� r� r* r* r+ �xzopen� s&
zTarFile.xzopenr� rs r� r� r� r� r� r� c
C s� | j r
d Sd | _ zz | j d k r� | j j t t d � | j t d 7_ t | j t � \ } } | d k r� | j j t t | � Wd | j s� | j j
� Xd S) zlClose the TarFile. In write-mode, two finishing zero blocks are
appended to the archive.
NTrc rt rG r r )rc rt rG ) r� r\ r� rQ r% r� r� rO �
RECORDSIZEr� r� )r} rT rU r* r* r+ r� � s z
TarFile.closec C s/ | j | � } | d k r+ t d | � � | S)a Return 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� r* r* r+ � getmember� s zTarFile.getmemberc C s$ | j � | j s | j � | j S)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.
)�_checkrn �_loadrm )r} r* r* r+ �
getmembers� s
zTarFile.getmembersc C s d d � | j � 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().
c S s g | ] } | j � q Sr* )r~ )rF r� r* r* r+ rH � s z$TarFile.getnames.<locals>.<listcomp>)r� )r} r* r* r+ �getnames� s zTarFile.getnamesc C sI | j d � | d k r" | j } | d k r4 | } t j j | � \ } } | j t j d � } | j d � } | j � } | | _ | d k r� t
t d � r� | j r� t j | � } q� t j
| � } n t j | j � � } d } | j } t
j | � r�| j | j f } | j rd| j d k rd| | j k rd| | j | k rdt }
| j | } qt }
| d r| | j | <n� t
j | � r�t }
ns t
j | � r�t }
n[ t
j | � r�t }
t j | � } n4 t
j | � r�t }
n t
j! | � r t" }
n d S| | _ | | _# | j$ | _% | j& | _' |
t k rT| j( | _) n d | _) | j* | _+ |
| _, | | _- t. r�y t. j/ | j% � d | _0 Wn t1 k
r�Yn Xt2 r�y t2 j3 | j' � d | _4 Wn t1 k
r�Yn X|
t t" f k rEt
t d � rEt
t d � rEt j5 | j6 � | _7 t j8 | 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� �lstatr� r r �major�minor):r� r~ rv r �
splitdriver� �sep�lstripr� r� r{ ri r� rZ �fstat�fileno�st_mode�S_ISREG�st_ino�st_dev�st_nlinkro rR r� �S_ISDIRr� �S_ISFIFOrX �S_ISLNKrP �readlink�S_ISCHRrT �S_ISBLKrV r\ �st_uidr �st_gidr �st_sizer �st_mtimer r� r� �pwd�getpwuidr r� �grpZgetgrgidr! r� �st_rdevr� r� r� ) r} r~ �arcnamer� Zdrvr� Zstatresr� Zstmd�inoder� r* r* r+ �
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"
zTarFile.gettarinfoTrm c C sQ | j � | d k r | } x.| D]&} | r� t t j | j � � t d | j pZ | j | j pi | j f � | j � s� | j
� r� t d d | j | j f � n t d | j
� t d t j | j � d d � � t | j | j � r� d n d � | rB| j � r%t d
| j � | j � rBt d | j � t � q# Wd S) a Print 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� rd rZ r[ r\ r r r! r rU rW r� r� r r� Z localtimer r~ r rQ r� rS rc )r} �verboserm r� r* r* r+ rD C s*
# z TarFile.list�filterc
C s� | j d � | d k r | } | d k rn d d l } | j d t d � | | � rn | j d d | � d S| j d k r� t j j | � | j k r� | j d d | � d S| j d | � | j | | � } | d k r� | j d d | � d S| d k r2| | � } | d k r2| j d d | � d S| j
� rjt | d
� � } | j | | � Wd QRXn� | j
� r�| j | � | r�xa t j | � D]@ } | j t j j | | � t j j | | � | | d | �q�Wn
| j | � d S) 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. `exclude' is a function that should
return True for each filename to be excluded. `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 z use the filter argument insteadr ztarfile: Excluded %rztarfile: Skipped %rr z tarfile: Unsupported type %rrb r� )r� rW rX rY �_dbgr~ rv r rh r� r0 rg �addfiler �listdir�addr� ) r} r~ r� Z recursiveZexcluder� rW r� �fr* r* r+ r� c sB
*
*z TarFile.addc C s� | j d � t j | � } | j | j | j | j � } | j j | � | j t | � 7_ | d k r� t
| | j | j � t | j t
� \ } } | d k r� | j j t t
| � | d 7} | j | t
7_ | j j | � d S)a Add 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� Nr r )r� r� r� rF r( r) r� rQ r� r$ rN r rO r� r% rm r� )r} r� r� rJ rT rU r* r* r+ r� � s
zTarFile.addfile�.�
numeric_ownerc C sU g } | d k r | } xb | D]Z } | j � rV | j | � t j | � } d | _ | j | | d | j � d | �q W| j d d d � � | j � x� | D]� } t j j | | j
� } y: | j | | d | �| j | | � | j
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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.
Ni� � set_attrsr� rv c S s | j S)N)r~ )rc r* r* r+ �<lambda>� s z$TarFile.extractall.<locals>.<lambda>r z tarfile: %s)r r� r� r\ �extract�sort�reverserv r r� r~ �chown�utime�chmodri rl r� )r} r rm r� Z directoriesr� �dirpathrq r* r* r+ �
extractall� s,
zTarFile.extractallr� c C sd | j d � t | t � r. | j | � } n | } | j � r[ t j j | | j � | _ y2 | j
| t j j | | j � d | d | �Wn� t k
r} zc | j
d k r� � nI | j d k r� | j d d | j � n | j d d | j | j f � WYd d } ~ XnN t k
r_} z. | j
d k r9� n | j d d | � WYd d } ~ Xn Xd S) 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.
rs r� r� r Nr z tarfile: %sztarfile: %s %r)r� r r r� rS rv r r� r� r� �_extract_memberr~ r� rl �filenamer� �strerrorri )r} �memberr r� r� r� rq r* r* r+ r� � s(
! 2zTarFile.extractc C s� | j d � t | t � r. | j | � } n | } | j � sO | j t k r_ | j | | � S| j � sw | j � r� t | j
t � r� t d � � q� | j
| j | � � Sn d Sd S)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.
rs z'cannot extract (sym)link as file objectN)r� r r r� r0 r� r1 �
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zTarFile.extractfilec C s� | j d � } | j d t j � } t j j | � } | r\ t j j | � r\ t j | � | j � st | j � r� | j
d d | j | j f � n | j
d | j � | j
� r� | j | | � n� | j � r� | j | | � n� | j � r| j | | � n� | j � s | j � r2| j | | � n] | j � sJ| j � r]| j | | � n2 | j t k r| j | | � n | j | | � | r�| j | | | � | j � s�| j | | � | j | | � d S)z\Extract the TarInfo object tarinfo to a physical
file called targetpath.
r� r z%s -> %sN) r! r� rv r� r �dirnamerf �makedirsrS rQ r� r~ r� r0 �makefiler �makedirrY �makefiforU rW �makedev�makelinkr� r1 � makeunknownr� r� r� )r} r� �
targetpathr� r� Z upperdirsr* r* r+ r� & s4
# zTarFile._extract_memberc C s- y t j | d � Wn t k
r( Yn Xd S)z,Make a directory called targetpath.
i� N)rv �mkdir�FileExistsError)r} r� r� r* r* r+ r� W s
zTarFile.makedirc
C s� | j } | j | j � t | d � �� } | j d k r� x7 | j D], \ } } | j | � t | | | t � qD W| j | j � | j � n t | | | j t � Wd QRXd S)z'Make a file called targetpath.
rd N) r� r� r� rg r� rN rj r �truncate)r} r� r� �source�targetr� r r* r* r+ r� a s
zTarFile.makefilec C s+ | j | | � | j d d | j � d S)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} r� r� r* r* r+ r� p s zTarFile.makeunknownc C s/ t t d � r t j | � n t d � � d S)z'Make a fifo called targetpath.
�mkfifoz fifo not supported by systemN)r{ rv r� ri )r} r� r� r* r* r+ r� x s zTarFile.makefifoc C s� t t d � s t t d � r, t d � � | j } | j � rQ | t j O} n
| t j O} t j | | t j | j
| j � � d S)z<Make a character or block device called targetpath.
�mknodr� z'special devices not supported by systemN) r{ rv ri r\ rW rZ �S_IFBLK�S_IFCHRr� r� r� r� )r} r� r� r\ r* r* r+ r� � s
zTarFile.makedevc C s� yj | j � r% t j | j | � nD t j j | j � rP t j | j | � n | j | j | � | � WnP t
k
r� y | j | j | � | � Wn t k
r� t d � � Yn XYn Xd S)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)
rQ rv �symlinkr� r rf r� �linkr� r� �symlink_exceptionr� ri )r} r� r� r* r* r+ r� � s
zTarFile.makelinkc C s2 t r.t t d � r.t j � d k r.| rB | j } | j } np y t j | j � d } Wn t k
ry | j } Yn Xy t j
| j � d } Wn t k
r� | j } Yn XyH | j � r� t t d � r� t j
| | | � n t j | | | � Wn1 t k
r-} z t d � � WYd d } ~ Xn Xd S)z�Set owner of targetpath according to tarinfo. If numeric_owner
is True, use .gid/.uid instead of .gname/.uname.
�geteuidr r �lchownzcould not change ownerN)r� r{ rv r� r r r� Zgetgrnamr! r� �getpwnamr rQ r� r� r� ri )r} r� r� r� �g�urq r* r* r+ r� � s$ '
z
TarFile.chownc C s^ t t d � rZ y t j | | j � Wn1 t k
rY } z t d � � WYd d } ~ Xn Xd S)zASet file permissions of targetpath according to tarinfo.
r� zcould not change modeN)r{ rv r� r\ r� ri )r} r� r� rq r* r* r+ r� � s
z
TarFile.chmodc C sk t t d � s d Sy t j | | j | j f � Wn1 t k
rf } z t d � � WYd d } ~ Xn Xd S)zBSet modification time of targetpath according to tarinfo.
r� Nz"could not change modification time)r{ rv r� r r� ri )r} r� r� rq r* r* r+ r� � s z
TarFile.utimec C sV | j d � | j d k r2 | j } d | _ | S| j | j j � k r | j j | j d � | j j d � s t d � � d } x�y | j j | � } Wn�t
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r� } z= | j r� | j d d | j | f � | j t
7_ w� WYd d } ~ Xn(t k
r}} za | j rJ| j d d | j | f � | j t
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r�| j d k r�t d � � Yn| t k
r�} z& | j d k r�t t | � � � WYd d } ~ Xn7 t k
r$} z t t | � � � WYd d } ~ Xn XPq� W| d k rI| j j | � n d | _ | 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 zunexpected end of datar z0x%X: %sr z
empty fileT)r� rp r� r� r� r� rP rj r� r* rp rj r� r� r= r rn ro rq rm r� rn )r} �mr� rq r* r* r+ r4 � sL
$
$% z TarFile.nextc C s� | j � } | d k r1 | d | j | � � } | rI t j j | � } xK t | � D]= } | rz t j j | j � } n | j } | | k rV | SqV Wd S)z}Find an archive member by name from bottom to top.
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N)r� �indexrv r �normpath�reversedr~ )r} r~ r� � normalizerm r� Z member_namer* r* r+ r�
s zTarFile._getmemberc C s- x | j � } | d k r Pq Wd | _ d S)zWRead through the entire archive file and look for readable
members.
NT)r4 rn )r} r� r* r* r+ r� ! s
z
TarFile._loadc C sQ | j r t d | j j � � | d k rM | j | k rM t d | j � � d S)znCheck if TarFile is still open, and if the operation's mode
corresponds to TarFile's mode.
z %s is closedNzbad operation for mode %r)r� r� r� re r\ )r} r\ r* r* r+ r� + s zTarFile._checkc C s� | j � rE d j t d t j j | j � | j f � � } d } n | j } | } | j | d | d d �} | d k r� t d | � � | S)zZFind the target member of a symlink or hardlink member in the
archive.
r� Nr� r� Tzlinkname %r not found)
rQ r� r� rv r r� r~ r� r� r� )r} r� r� �limitr� r* r* r+ r� 4 s 0 zTarFile._find_link_targetc C s$ | j r t | j � St | � Sd S)z$Provide an iterator object.
N)rn �iterrm �TarIter)r} r* r* r+ �__iter__G s
zTarFile.__iter__c C s& | | j k r" t | d t j �d S)z.Write debugging output to sys.stderr.
�fileN)rk rc ra �stderr)r} �level�msgr* r* r+ r� O s z TarFile._dbgc C s | j � | S)N)r� )r} r* r* r+ � __enter__U s
zTarFile.__enter__c C s< | d k r | j � n | j s/ | j j � d | _ d S)NT)r� r� r� r� )r} r� r � tracebackr* r* r+ �__exit__Y s
zTarFile.__exit__)8re rf rg rh rk ri rj rl r^ rF r_ r( r) r r� r� r� r r` r� r rs r� r� r� rt r� r� r� r� r� rD r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r4 r� r� r� r� r� r� r� r� r* r* r* r+ r _ st kZ!
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c @ s: e Z d Z d Z d d � Z d d � Z d d � Z d S) r� zMIterator Class.
for tarinfo in TarFile(...):
suite...
c C s | | _ d | _ d S)z$Construct a TarIter object.
r N)r� r� )r} r� r* r* r+ r k s zTarIter.__init__c C s | S)z Return iterator object.
r* )r} r* r* r+ r� p s zTarIter.__iter__c C s� | j d k r3 | j j d k r3 | j j � } nm | j t | j j � k rd | j j | j } n< | j j s� | j j � } | s� d | j _ t � n t � | j d 7_ | S)z�Return the next item using TarFile's next() method.
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r NTr )r� r� rp r4 r$ rm rn �
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r6 d SYn Xd S)zfReturn True if name points to a tar archive that we
are able to handle, else return False.
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c C s� d d l } d } | j d | � } | j d d d d d d d
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� � n | j d" | j � � d S);Nr z3A simple command line interface for tarfile module.� descriptionz-vz --verbose�action�
store_true�defaultF�helpzVerbose outputz-lz--list�metavar� <tarfile>zShow listing of a tarfilez-ez --extract�nargs�+� <output_dir>z Extract tarfile into target dirz-cz--create�<name>�<file>zCreate tarfile from sourcesz-tz--testzTest if a tarfile is validrs r� z{!r} is a tar archive.r z{!r} is not a tar archive.
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parse_argsZtestr r r� rc ra r� r� rF �exitrD r r� r$ rv �curdirZ format_helpr� Zcreate�popr �splitextr� )r� r� �parserr: �argsrR r� Ztfr r� Ztar_name�_ZextZ compressionsZtar_modeZ tar_files� file_namer* r* r+ �main� s�
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__author__Z__date__Z __cvsid__� __credits__�builtinsr rg ra rv r� rM rZ r� rI r� r8 r� r� r� r~ �NotImplementedErrorr� r� � NameError�__all__r% r� r� r� r� r� r� r
r� r rR rP rT rV r� rX ZCONTTYPEr� r� r r r r- r� rB r� r^ r1 rN r" rK r? r r: rL r~ r_ �getfilesystemencodingr, r1 r@ rG rK rN r[ rd � Exceptionr ri rj rk rl rm rn ro rp r= rq rr r� �objectr� r� �BufferedReaderr� r r r� r r
re r* r* r* r+ �<module> s�
� h � � �� � � � ) Z