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| Current File : //usr/lib64/python2.7/tarfile.pyo |
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eg f dt � � YZm du f dv � � YZn dw f dx � � YZo dy eo f dz � � YZp d{ eo f d| � � YZq d} er f d~ � � YZs d# Zt d= Zu d f d� � � YZv d� � Zw em j Z d S(� s, Read from and write to tar format archives.
s $Revision: 85213 $s 0.9.0s! Lars Gust�bel (lars@gustaebel.de)s $Date$s $Id$s3 Gustavo Niemeyer, Niels Gust�bel, Richard Townsend.i����( t openNt TarFilet TarInfot
is_tarfilet TarErrors i i s ustar s ustar 00id i� t 0t 1t 2t 3t 4t 5t 6t 7t Lt Kt St xt gt Xi i i t patht linkpatht sizet mtimet uidt gidt unamet gnamet atimet ctimei � i � i ` i @ i i i i i i� i@ i i i i c C s | | | t | � t S( s@ Convert a python string to a null-terminated string buffer.
( t lent NUL( t st length( ( s /usr/lib64/python2.7/tarfile.pyt stn� s c C s' | j d � } | d k r | S| | S( s? Convert a null-terminated string field to a python string.
s i����( t find( R t p( ( s /usr/lib64/python2.7/tarfile.pyt nts� s c C s� | d t d � k r^ y% t t | � j � p1 d d � } Wq� t k
rZ t d � � q� XnI d } x@ t t | � d � D]( } | d K} | t | | d � 7} q{ W| S( s/ Convert a number field to a python number.
i i� R i s invalid headerl i ( t chrt intR$ t stript
ValueErrort InvalidHeaderErrort xrangeR t ord( R t nt i( ( s /usr/lib64/python2.7/tarfile.pyt nti� s %
c C s� d | k o d | d k n r? d | d | f t } n� | t k s_ | d | d k rn t d � � n | d k r� t j d t j d | � � d } n d } x6 t | d � D]$ } t | d
@� | } | d L} q� Wt d � | } | S( s/ Convert a python number to a number field.
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r� | j | j d � � q= Xq= Wd j | � SXn | j | | � Sd S( s* Convert a unicode object to a string.
s utf-8t strictt utf8R0 N( t encodet UnicodeEncodeErrort appendt join( R t encodingt errorsR t c( ( s /usr/lib64/python2.7/tarfile.pyt uts� s
c C sx d t t j d | d � t j d | d d !� � } d t t j d | d � t j d | d d !� � } | | f S( s� 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.
i t 148Bi� t 356Bi� i t 148bt 356b( t sumR2 R3 ( t buft unsigned_chksumt
signed_chksum( ( s /usr/lib64/python2.7/tarfile.pyt calc_chksums� s 77c C s� | d k r d S| d k r0 t j | | � d Sd } t | | � \ } } xQ t | � D]C } | j | � } t | � | k r� t d � � n | j | � qX W| d k r� | j | � } t | � | k r� t d � � n | j | � n d S( sj Copy length bytes from fileobj src to fileobj dst.
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i Ni i s end of file reachedi @ ( t Nonet shutilt copyfileobjt divmodR* t readR t IOErrort write( t srct dstR t BUFSIZEt blockst remaindert bRG ( ( s /usr/lib64/python2.7/tarfile.pyRM s$ R/ t -RW t dR@ R# t rt wR t tt Tc C si g } xS t D]K } xB | D]- \ } } | | @| k r | j | � Pq q W| j d � q
Wd j | � S( sc Convert a file's mode to a string of the form
-rwxrwxrwx.
Used by TarFile.list()
RX R0 ( t filemode_tableR< R= ( t modet permt tablet bitt char( ( s /usr/lib64/python2.7/tarfile.pyt filemode7 s
c B s e Z d Z RS( s Base exception.( t __name__t
__module__t __doc__( ( ( s /usr/lib64/python2.7/tarfile.pyR F s t ExtractErrorc B s e Z d Z RS( s% General exception for extract errors.( Re Rf Rg ( ( ( s /usr/lib64/python2.7/tarfile.pyRh I s t ReadErrorc B s e Z d Z RS( s& Exception for unreadable tar archives.( Re Rf Rg ( ( ( s /usr/lib64/python2.7/tarfile.pyRi L s t CompressionErrorc B s e Z d Z RS( s. Exception for unavailable compression methods.( Re Rf Rg ( ( ( s /usr/lib64/python2.7/tarfile.pyRj O s t StreamErrorc B s e Z d Z RS( s= Exception for unsupported operations on stream-like TarFiles.( Re Rf Rg ( ( ( s /usr/lib64/python2.7/tarfile.pyRk R s t HeaderErrorc B s e Z d Z RS( s! Base exception for header errors.( Re Rf Rg ( ( ( s /usr/lib64/python2.7/tarfile.pyRl U s t EmptyHeaderErrorc B s e Z d Z RS( s Exception for empty headers.( Re Rf Rg ( ( ( s /usr/lib64/python2.7/tarfile.pyRm X s t TruncatedHeaderErrorc B s e Z d Z RS( s Exception for truncated headers.( Re Rf Rg ( ( ( s /usr/lib64/python2.7/tarfile.pyRn [ s t EOFHeaderErrorc B s e Z d Z RS( s" Exception for end of file headers.( Re Rf Rg ( ( ( s /usr/lib64/python2.7/tarfile.pyRo ^ s R) c B s e Z d Z RS( s Exception for invalid headers.( Re Rf Rg ( ( ( s /usr/lib64/python2.7/tarfile.pyR) a s t SubsequentHeaderErrorc B s e Z d Z RS( s3 Exception for missing and invalid extended headers.( Re Rf Rg ( ( ( s /usr/lib64/python2.7/tarfile.pyRp d s t
_LowLevelFilec B s2 e Z d Z d � Z d � Z d � Z d � Z RS( s� Low-level file object. Supports reading and writing.
It is used instead of a regular file object for streaming
access.
c C sg i t j d 6t j t j Bt j Bd 6| } t t d � rK | t j O} n t j | | d � | _ d S( NRZ R[ t O_BINARYi� ( t ost O_RDONLYt O_WRONLYt O_CREATt O_TRUNCt hasattrRr R t fd( t selft nameR_ ( ( s /usr/lib64/python2.7/tarfile.pyt __init__q s
c C s t j | j � d S( N( Rs t closeRy ( Rz ( ( s /usr/lib64/python2.7/tarfile.pyR} z s c C s t j | j | � S( N( Rs RO Ry ( Rz R ( ( s /usr/lib64/python2.7/tarfile.pyRO } s c C s t j | j | � d S( N( Rs RQ Ry ( Rz R ( ( s /usr/lib64/python2.7/tarfile.pyRQ � s ( Re Rf Rg R| R} RO RQ ( ( ( s /usr/lib64/python2.7/tarfile.pyRq k s
t _Streamc B s� e Z d Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z
d d
� Z d d � Z
d � Z d
� Z RS( s� 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 C s� t | _ | d k r0 t | | � } t | _ n | d k rW t | � } | j � } n | p` d | _ | | _ | | _ | | _
| | _ d | _ d | _
t | _ y� | d k r)y d d l } Wn t k
r� t d � � n X| | _ | j d � d @| _ | d k r | j � q�| j � nu | d
k r�y d d l } Wn t k
rdt d � � n X| d k r�d | _ | j � | _ q�| j � | _ n Wn, | j s�| j
j � n t | _ � n Xd S( s$ Construct a _Stream object.
t *R0 l t gzi����Ns zlib module is not availablel �� RZ t bz2s bz2 module is not available( t Truet _extfileobjRK Rq t Falset _StreamProxyt getcomptypeR{ R_ t comptypet fileobjt bufsizeRG t post closedt zlibt ImportErrorRj t crc32t crct
_init_read_gzt _init_write_gzR� t dbuft BZ2Decompressort cmpt
BZ2CompressorR} ( Rz R{ R_ R� R� R� R� R� ( ( s /usr/lib64/python2.7/tarfile.pyR| � sP
c C s* t | d � r& | j r& | j � n d S( NR� ( Rx R� R} ( Rz ( ( s /usr/lib64/python2.7/tarfile.pyt __del__� s c C s� | j j d | j j | j j | j j d � | _ t j d t t j � � � } | j
d | � t | j � t
k r� | j j d d � | _ n | j j d � r� | j d | _ n | j
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s6 Initialize for writing with gzip compression.
i i s <Ls �%s�s
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DEF_MEM_LEVELR� R2 R4 t longt timet _Stream__writet typeR{ t unicodeR: t endswithR ( Rz t timestamp( ( s /usr/lib64/python2.7/tarfile.pyR� � s
c C s{ | j d k r1 | j j | | j � d @| _ n | j t | � 7_ | j d k rj | j j | � } n | j | � d S( s& Write string s to the stream.
R� l �� t tarN( R� R� R� R� R� R R� t compressR� ( Rz R ( ( s /usr/lib64/python2.7/tarfile.pyRQ � s "c C s_ | j | 7_ xI t | j � | j k rZ | j j | j | j � | j | j | _ q Wd S( s] Write string s to the stream if a whole new block
is ready to be written.
N( RG R R� R� RQ ( Rz R ( ( s /usr/lib64/python2.7/tarfile.pyt __write� s c C s | j r
d St | _ z� | j d k rR | j d k rR | j | j j � 7_ n | j d k r� | j r� | j j | j � d | _ | j d k r� | j j t j
d | j d @� � | j j t j
d | j d @� � q� n Wd | j
s� | j j � n Xd S( s[ Close the _Stream object. No operation should be
done on it afterwards.
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t | j d � � } | j | � n | d @rx3 t
r| j d � } | s
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rQ| j d � } | sJ| t k r"Pq"q"Wn | d @ro| j d � n d
S( s: Initialize for reading a gzip compressed fileobj.
R0 i s �s not a gzip filei s s unsupported compression methodi i i i i N( R� t
decompressobjR� R� R� t
_Stream__readRi Rj R+ RO R� R ( Rz t flagt xlenR ( ( s /usr/lib64/python2.7/tarfile.pyR� s.
,
c C s | j S( s3 Return the stream's file pointer position.
( R� ( Rz ( ( s /usr/lib64/python2.7/tarfile.pyt tell# s i c C s| | | j d k ri t | | j | j � \ } } x$ t | � D] } | j | j � q? W| j | � n t d � � | j S( sX Set the stream's file pointer to pos. Negative seeking
is forbidden.
i s seeking backwards is not allowed( R� RN R� R* RO Rk ( Rz R� RU RV R- ( ( s /usr/lib64/python2.7/tarfile.pyt seek( s c C s� | d k rZ g } x3 t rG | j | j � } | s7 Pn | j | � q Wd j | � } n | j | � } | j t | � 7_ | S( s� Return the next size number of bytes from the stream.
If size is not defined, return all bytes of the stream
up to EOF.
R0 N( RK R� t _readR� R< R= R� R ( Rz R R\ RG ( ( s /usr/lib64/python2.7/tarfile.pyRO 5 s c C s� | j d k r | j | � St | j � } | j g } x | | k r� | j | j � } | sb Pn y | j j | � } Wn t k
r� t d � � n X| j | � | t | � 7} q: Wd j
| � } | | | _ | | S( s+ Return size bytes from the stream.
R� s invalid compressed dataR0 ( R� R� R R� R� R� t
decompressRP Ri R< R= ( Rz R R@ R\ RG ( ( s /usr/lib64/python2.7/tarfile.pyR� G s"
c C s� t | j � } | j g } xL | | k ri | j j | j � } | sI Pn | j | � | t | � 7} q Wd j | � } | | | _ | | S( ss Return size bytes from stream. If internal buffer is empty,
read another block from the stream.
R0 ( R RG R� RO R� R< R= ( Rz R R@ R\ RG ( ( s /usr/lib64/python2.7/tarfile.pyt __read] s
N( Re Rf Rg R| R� R� RQ R� R} R� R� R� RK RO R� R� ( ( ( s /usr/lib64/python2.7/tarfile.pyR~ � s 4
R� c B s2 e Z d Z d � Z d � Z d � Z d � Z RS( ss Small proxy class that enables transparent compression
detection for the Stream interface (mode 'r|*').
c C s" | | _ | j j t � | _ d S( N( R� RO t BLOCKSIZERG ( Rz R� ( ( s /usr/lib64/python2.7/tarfile.pyR| s s c C s | j j | _ | j S( N( R� RO RG ( Rz R ( ( s /usr/lib64/python2.7/tarfile.pyRO w s c C sJ | j j d � r d S| j d d !d k rF | j d d !d k rF d Sd
S( Ns �R� i i t BZhi i
s 1AY&SYR� R� ( RG t
startswith( Rz ( ( s /usr/lib64/python2.7/tarfile.pyR� { s
,c C s | j j � d S( N( R� R} ( Rz ( ( s /usr/lib64/python2.7/tarfile.pyR} � s ( Re Rf Rg R| RO R� R} ( ( ( s /usr/lib64/python2.7/tarfile.pyR� n s
t _BZ2Proxyc B sS e Z d Z d
Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z
RS( s Small proxy class that enables external file object
support for "r:bz2" and "w:bz2" modes. This is actually
a workaround for a limitation in bz2 module's BZ2File
class which (unlike gzip.GzipFile) has no support for
a file object argument.
i i c C s8 | | _ | | _ t | j d d � | _ | j � d S( NR{ ( R� R_ t getattrRK R{ t init( Rz R� R_ ( ( s /usr/lib64/python2.7/tarfile.pyR| � s c C sb d d l } d | _ | j d k rO | j � | _ | j j d � d | _ n | j � | _ d S( Ni����i RZ R0 ( R� R� R_ R� t bz2objR� R� RG R� ( Rz R� ( ( s /usr/lib64/python2.7/tarfile.pyR� � s c C s� | j g } t | j � } x^ | | k r{ | j j | j � } | sI Pn | j j | � } | j | � | t | � 7} q Wd j | � | _ | j | } | j | | _ | j t | � 7_ | S( NR0 (
RG R R� RO t blocksizeR� R� R< R= R� ( Rz R RW R t rawt dataRG ( ( s /usr/lib64/python2.7/tarfile.pyRO � s
c C s4 | | j k r | j � n | j | | j � d S( N( R� R� RO ( Rz R� ( ( s /usr/lib64/python2.7/tarfile.pyR� � s
c C s | j S( N( R� ( Rz ( ( s /usr/lib64/python2.7/tarfile.pyR� � s c C s; | j t | � 7_ | j j | � } | j j | � d S( N( R� R R� R� R� RQ ( Rz R� R� ( ( s /usr/lib64/python2.7/tarfile.pyRQ � s c C s5 | j d k r1 | j j � } | j j | � n d S( NR[ ( R_ R� R� R� RQ ( Rz R� ( ( s /usr/lib64/python2.7/tarfile.pyR} � s i @ ( Re Rf Rg R� R| R� RO R� R� RQ R} ( ( ( s /usr/lib64/python2.7/tarfile.pyR� � s
t _FileInFilec B s\ e Z d Z d d � Z d � Z d � Z d d � Z d � Z d � Z d � Z
d � Z RS(
s A thin wrapper around an existing file object that
provides a part of its data as an individual file
object.
c C s1 | | _ | | _ | | _ | | _ d | _ d S( Ni ( R� t offsetR t sparset position( Rz R� R� R R� ( ( s /usr/lib64/python2.7/tarfile.pyR| � s
c C s | j S( s* Return the current file position.
( R� ( Rz ( ( s /usr/lib64/python2.7/tarfile.pyR� � s c C s
| | _ d S( s( Seek to a position in the file.
N( R� ( Rz R� ( ( s /usr/lib64/python2.7/tarfile.pyR� � s c C se | d k r | j | j } n t | | j | j � } | j d k rT | j | � S| j | � Sd S( s! Read data from the file.
N( RK R R� t minR� t
readnormalt
readsparse( Rz R ( ( s /usr/lib64/python2.7/tarfile.pyRO � s
c C s7 | j j | � } t | � | k r3 t d � � n | S( Ns unexpected end of data( R� RO R Ri ( Rz R RG ( ( s /usr/lib64/python2.7/tarfile.pyR� � s c C s6 | j j | j | j � | j | 7_ | j | � S( s* Read operation for regular files.
( R� R� R� R� t _FileInFile__read( Rz R ( ( s /usr/lib64/python2.7/tarfile.pyR� � s c C s\ g } xF | d k rN | j | � } | s. Pn | t | � 8} | j | � q Wd j | � S( s) Read operation for sparse files.
i R0 ( t readsparsesectionR R< R= ( Rz R R� RG ( ( s /usr/lib64/python2.7/tarfile.pyR� � s c C s� | j j | j � } | d k r% d St | | j | j | j � } t | t � r� | j | j | j } | j
j | j | � | j | 7_ | j | � S| j | 7_ t
| Sd S( s0 Read a single section of a sparse file.
R0 N( R� R" R� RK R� R� R t
isinstancet _datat realposR� R� R� R ( Rz R t sectionR� ( ( s /usr/lib64/python2.7/tarfile.pyR� s
N( Re Rf Rg RK R| R� R� RO R� R� R� R� ( ( ( s /usr/lib64/python2.7/tarfile.pyR� � s
t ExFileObjectc B sh e Z d Z d Z d � Z d d � Z d d � Z d � Z d � Z e
j d � Z d � Z
d
� Z RS( sa File-like object for reading an archive member.
Is returned by TarFile.extractfile().
i c C sm t | j | j | j t | d d � � | _ | j | _ d | _ t | _ | j | _ d | _
d | _ d S( NR� RZ i R0 ( R� R� t offset_dataR R� RK R{ R_ R� R� R� t buffer( Rz t tarfilet tarinfo( ( s /usr/lib64/python2.7/tarfile.pyR| s c C s� | j r t d � � n d } | j rh | d k rH | j } d | _ qh | j | } | j | | _ n | d k r� | | j j � 7} n | | j j | t | � � 7} | j t | � 7_ | S( s~ Read at most size bytes from the file. If size is not
present or None, read all data until EOF is reached.
s I/O operation on closed fileR0 N( R� R( R� RK R� RO R R� ( Rz R RG ( ( s /usr/lib64/python2.7/tarfile.pyRO , s
i����c C s, | j r t d � � n d | j k r@ | j j d � d } n� | j g } x� t r� | j j | j � } | j | � | s� d | k rO d j | � | _ | j j d � d } | d k r� t
| j � } n PqO qO W| d k r� t | | � } n | j | } | j | | _ | j t
| � 7_ | S( s� Read one entire line from the file. If size is present
and non-negative, return a string with at most that
size, which may be an incomplete line.
s I/O operation on closed files
i R0 i i����(
R� R( R� R" R� R� RO R� R< R= R R� R� ( Rz R R� t buffersRG ( ( s /usr/lib64/python2.7/tarfile.pyt readlineD s(
c C s: g } x- t r5 | j � } | s% Pn | j | � q W| S( s0 Return a list with all remaining lines.
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c B s� e Z d Z d d � Z d � Z d � Z e e e � Z d � Z d � Z e e e � Z
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� Z e d � � Z d � Z e d � � Z e d � � Z e d � � Z e e d � � Z e d � � Z e d � � Z d � Z d � Z d � Z d � Z! d � Z" d � Z# d � Z$ d � Z% d � Z& d � Z' d � Z( d! � Z) d" � Z* d# � Z+ d$ � Z, d% � Z- d& � Z. RS(' s Informational class which holds the details about an
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i� i R0 N( R{ R_ R R R R t chksumt REGTYPER� t linknameR R t devmajort devminorR� R� t pax_headers( Rz R{ ( ( s /usr/lib64/python2.7/tarfile.pyR| � s c C s | j S( N( R{ ( Rz ( ( s /usr/lib64/python2.7/tarfile.pyt _getpath� s c C s
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s invalid formatN( R� t USTAR_FORMATt create_ustar_headerR1 t create_gnu_headert
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S( s� Open an (uncompressed) tar archive `name'. `mode' is either 'r' to
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s nothing to openRZ s r:*c s � j | d k S( Nt taropen( t OPEN_METH( R� ( R ( s /usr/lib64/python2.7/tarfile.pyt not_compressed� s R� s% file could not be opened successfullyt :i R� s unknown compression type %rt |R[ s mode must be 'r' or 'w'RI s undiscernible modeN( RZ s r:*( RZ R[ ( RI R[ ( R( t sortedR` R� RK R� Ri Rj R� t splitR~ R} R� R� R_ ( R R{ R_ R� R� t kwargsRa R� t funct saved_posRY Rd t streamR\ ( ( R s /usr/lib64/python2.7/tarfile.pyR i sP
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| j | | � n� | j � s"| j � r5| j | | � n] | j � sM| j � r`| j | | � n2 | j t k r�| j | | � n | j | | � | j | | � | j � s�| j | | � | j | | � n d S( s\ Extract the TarInfo object tarinfo to a physical
file called targetpath.
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instead of a link.
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t geteuidi i t lchownt os2emxs could not change ownerN( R� Rx Rs R� R� t getgrnamR Ru R t getpwnamR R R8 R� t syst platformR� R� Rh ( Rz R� R� R t uRY ( ( s /usr/lib64/python2.7/tarfile.pyR� � s '
c C sO t t d � rK y t j | | j � WqK t k
rG } t d � � qK Xn d S( sA Set file permissions of targetpath according to tarinfo.
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c C sY t t d � s d Sy t j | | j | j f � Wn t k
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R� Ns" could not change modification time( Rx Rs R� R R� Rh ( Rz R� R� RY ( ( s /usr/lib64/python2.7/tarfile.pyR� s c C s% | j d � | j d k r2 | j } d | _ | S| j | j j � k r� | j j | j d � | j j d � s� t d � � q� n d } xkt r�y | j
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r�} | j d k r�t t | � � � q�n% t k
r�} t t | � � � n XPq� W| d k r| j j | � n t | _ | S( s� Return the next member of the archive as a TarInfo object, when
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empty fileN( Rw RW RK R� R� R� R� RO Ri R� R� R Ro RQ R� R� R) R
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c C s� | j � } | d k r. | | j | � } n | rI t j j | � } n xK t | � D]= } | rz t j j | j � } n | j } | | k rV | SqV Wd S( s} Find an archive member by name from bottom to top.
If tarinfo is given, it is used as the starting point.
N( Ry RK t indexRs R t normpatht reversedR{ ( Rz R{ R� t normalizeRT R� t member_name( ( s /usr/lib64/python2.7/tarfile.pyRt Y s c C s6 x& t r( | j � } | d k r Pq q Wt | _ d S( sW Read through the entire archive file and look for readable
members.
N( R� R" RK RU ( Rz R� ( ( s /usr/lib64/python2.7/tarfile.pyRx p s
c C sW | j r" t d | j j � � n | d k rS | j | k rS t d | j � � n d S( sn Check if TarFile is still open, and if the operation's mode
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s %s is closeds bad operation for mode %rN( R� RP R� Re RK R_ ( Rz R_ ( ( s /usr/lib64/python2.7/tarfile.pyRw z s c C s� | j � rE d j t d t j j | j � | j f � � } d } n | j } | } | j | d | d t
�} | d k r� t d | � � n | S( sZ Find the target member of a symlink or hardlink member in the
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c C s# | | j k r t j | IJn d S( s. Write debugging output to sys.stderr.
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i N( R� R� ( Rz R� ( ( s /usr/lib64/python2.7/tarfile.pyR| � s c C s | S( s Return iterator object.
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( Re Rf Rg ( ( ( s /usr/lib64/python2.7/tarfile.pyR$ � s R# c B s e Z d Z d � Z d � Z RS( sM Ringbuffer class which increases performance
over a regular list.
c C s
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