관리-도구
편집 파일: tarfile.cpython-34.pyc
� e f�e � @ s� d Z d Z d Z d Z d Z d Z d d l m Z d d l Z d d l Z d d l Z d d l Z d d l Z d d l Z d d l Z d d l Z d d l Z y d d l Z d d l Z Wn e k r� d Z Z Yn Xe e f Z y e e f 7Z Wn e k r Yn Xd d d d g Z d Z 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. d Z/ d Z0 d! Z1 d Z2 d" Z3 d# Z4 e3 Z5 e# e$ e% e& e) e* e+ e' e( e, e- e. f Z6 e# e$ e+ e. f Z7 e, e- e. f Z8 d$ d% d& d' d( d) d* d+ f Z9 d$ d% d* d+ h Z: i e; d, 6e; d- 6e; d' 6e< d( 6e< d) 6e< d& 6Z= e j> d. d/ f k r�d0 Z? n e j@ � Z? d1 d2 � ZA d3 d4 � ZB d5 d6 � ZC d7 e5 d8 d9 � ZD d: d; � ZE d e d< d= � ZF d> d? � ZG d@ dA � ZH GdB d � d eI � ZJ GdC dD � dD eJ � ZK GdE dF � dF eJ � ZL GdG dH � dH eJ � ZM GdI dJ � dJ eJ � ZN GdK dL � dL eJ � ZO GdM dN � dN eO � ZP GdO dP � dP eO � ZQ GdQ dR � dR eO � ZR GdS dT � dT eO � ZS GdU dV � dV eO � ZT GdW dX � dX � ZU GdY dZ � dZ � ZV Gd[ d\ � d\ eW � ZX Gd] d^ � d^ eW � ZY Gd_ d` � d` e jZ � Z[ Gda d � d 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` � n 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 $u4 Gustavo Niemeyer, Niels Gustäbel, Richard Townsend.� )�openN�TarFile�TarInfo� is_tarfile�TarErrors i � s ustar s ustar 00�d � � 0� 1� 2� 3� 4� 5� 6� 7� L� K� S� x� g� X� � �path�linkpath�size�mtime�uid�gid�uname�gnameZatimeZctime�ntZcezutf-8c C s2 | j | | � } | d | � | t | � t S)z8Convert a string to a null-terminated bytes object. N)�encode�len�NUL)�s�length�encoding�errors� r* �,/opt/alt/python34/lib64/python3.4/tarfile.py�stn� s r, c C s> | j d � } | d k r. | d | � } n | j | | � S)z8Convert a null-terminated bytes object to a string. s r N���)�find�decode)r& r( r) �pr* r* r+ �nts� s r1 c C s� | d d k r� d } x: t t | � d � D]" } | d K} | | | d 7} q- W| d d k r� d t | � d | } q� nR y1 t | d d � } t | j � p� d d � } Wn t k r� t d � � Yn X| S) z/Convert a number field to a python number. r � � r � � �ascii�strict�0zinvalid header)r2 r3 )�ranger$ r1 �int�strip� ValueError�InvalidHeaderError)r& �n�ir* r* r+ �nti� s r@ r4 c C s d | k o d | d k n rN t d | d t | � f d � t } n� | t k r� d | d | k o� d | d k n r� | d k r� t d g � } n t d g � } d | | } xE t | d � D]$ } | j d | d @� | d L} q� Wn t d � � | S) 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 $*9 rG c C sB d t t j d | � � } d t t j d | � � } | | f S)a� Calculate the checksum for a member's header by summing up all characters except for the chksum field which is treated as if it was filled with spaces. According to the GNU tar sources, some tars (Sun and NeXT) calculate chksum with signed char, which will be different if there are chars in the buffer with the high bit set. So we calculate two checksums, unsigned and signed. r5 Z 148B8x356BZ 148b8x356b)�sum�structZ unpack_from)�bufZunsigned_chksumZ signed_chksumr* r* r+ � calc_chksums� s rK c C s� | d k r d S| d k r0 t j | | � d Sd } t | | � \ } } xQ t | � D]C } | j | � } t | � | k r� | d � � n | j | � qX W| d k r� | j | � } t | � | k r� | d � � n | j | � n d S)zjCopy length bytes from fileobj src to fileobj dst. If length is None, copy the entire content. r N� i zunexpected end of datai @ )�shutil� copyfileobj�divmodr9 �readr$ �write) �srcZdstr' � exceptionZBUFSIZE�blocks� remainder�brJ r* r* r+ rN � s$ 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 sS t t j d d � } | d k r? | j | d � j | � } n 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. 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)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 d � Z d d � Z d d � Z 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 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� d | _ | d k r0 t | | � } d | _ n | d k rW t | � } | j � } n | p` d | _ | | _ | | _ | | _ | | _ d | _ d | _ d | _ y�| d k r2y d d l } Wn t k r� t d � � Yn X| | _ | j d � | _ | d k r%| j � | j | _ qR| j � n | d k r�y d d l } Wn t k rnt d � � Yn X| d k r�d | _ | j � | _ t | _ qR| j � | _ n� | d k r3y d d l } Wn t k r�t d � � Yn X| d k r!d | _ | j � | _ | j | _ qR| j � | _ n | d k rRt d | � � n Wn- | j sr| j j � n 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� _init_read_gz�errorrS �_init_write_gzr� �dbufZBZ2Decompressor�cmp�OSErrorZ BZ2Compressor�lzmaZLZMADecompressor� LZMAErrorZLZMACompressorr� ) r} r~ r\ r� r� r� r� r� r� r* r* r+ r S sl z_Stream.__init__c C s* t | d � r& | j r& | j � n 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 d | d � | j j d � r� | j d d � | _ n | j | j j d d � t � d S) z6Initialize for writing with gzip compression. � r z<Ls �s �z.gzN� z iso-8859-1�replace���)r� Z compressobjZDEFLATED� MAX_WBITSZ DEF_MEM_LEVELr� rI �packr: �time�_Stream__writer~ �endswithr# r% )r} Z timestampr* r* r+ r� � s z_Stream._init_write_gzc C sw | j d k r- | j j | | j � | _ n | j t | � 7_ | j d k rf | j j | � } n | 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 is ready to be written. 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 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) z[Close the _Stream object. No operation should be done on it afterwards. NTrt r� r� r� z<Ll �� )r� r\ r� rJ r� �flushr� rQ rI r� r� r� r� r� )r} r* r* r+ r� � s #- z _Stream.closec C sg | j j | j j � | _ d | _ | j d � d k rI t d � � n | j d � d k rm t d � � n t | j d � � } | j d � | d @r� t | j d � � d t | j d � � } | j | � n | d @rx- | j d � } | s| t k r� Pq� q� Wn | d @rIx- | j d � } | s>| t k r Pq q Wn | d @rc| j d � n d S)z:Initialize for reading a gzip compressed fileobj. r� r s �znot a gzip filer s z unsupported compression method� � r5 r4 rL N) r� Z decompressobjr� r� r� � _Stream__readrj rk �ordrP r% )r} ZflagZxlenr& r* r* r+ r� � s. , 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 s| | d k rT g } x- | j | j � } | s1 Pn | j | � q Wd j | � } n | j | � } | j t | � 7_ | S)z�Return the next size number of bytes from the stream. If size is not defined, return all bytes of the stream 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 � } | sV Pn y | 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 � } xN | | k r_ | j j | j � } | s= Pn | 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__read2 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 G s z_StreamProxy.__init__c C s | j j | _ | j S)N)r� rP rJ )r} r r* r* r+ rP K 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 Sd S)Ns �r� r r� s BZhr� � s 1AY&SYr� � ] �� �7zXZr� r� )r� r� )rJ � startswith)r} r* r* r+ r� O s 2z_StreamProxy.getcomptypec C s | j j � d S)N)r� r� )r} r* r* r+ r� Y s z_StreamProxy.closeN)re rf rg rh r rP r� r� r* r* r* r+ r� B s r� c @ s� e Z d Z d Z d d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z e j d d � Z d d d � Z 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 } n d | _ g | _ d } | j } xs | D]k \ } } | | k r� | j j d | | d f � n | j j d | | | | f � | | 7} | | } q� W| | j k r(| j j d | | j d f � n d S)Nr r~ FT) r� �offsetr �positionr` r~ r� � map_index�mapr� )r} r� r� r Z blockinfoZlastposZrealposr* r* r+ r f s( z_FileInFile.__init__c C s d S)Nr* )r} r* r* r+ r� 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 sl | d k r | j | j } n t | | j | j � } d } x'| d k rgxv | j | j \ } } } } | | j k o� | k n r� PqP | j d 7_ | j t | j � k rP d | _ qP qP Wt | | | j � } | r=| j j | | j | � | j j | � } t | � | k r0t d � � n | | 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� ` 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� i | j d 6| j d @d 6| j d 6| j d 6| j d 6| j d 6| j d 6| j d 6| j d 6| j d 6| j d 6| j d 6| j d 6} | d t k r� | d j d � r� | d d 7<n | S)z9Return the TarInfo's attributes as a dictionary. 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� r� �DIRTYPEr� )r} �infor* r* r+ �get_info s" $zTarInfo.get_info�surrogateescapec C sv | j � } | t k r+ | j | | | � S| t k rJ | j | | | � S| t k rf | j | | � St d � � d S)z<Return a tar header as a string of 512 byte blocks. zinvalid formatN)r� � USTAR_FORMAT�create_ustar_headerrB �create_gnu_header� PAX_FORMAT�create_pax_headerr< )r} rF r( r) r� r* r* r+ �tobuf" s z TarInfo.tobufc C s t | d <t | d � t k r/ t d � � n t | d � t k ri | j | d � \ | d <| d <n | j | t | | � S)z3Return the object as a ustar header block. �magicr� zlinkname is too longr~ �prefix)� POSIX_MAGICr$ � LENGTH_LINKr< � LENGTH_NAME�_posix_split_name�_create_headerr� )r} r� r( r) r* r* r+ r� 0 s $zTarInfo.create_ustar_headerc C s� t | d <d } t | d � t k rI | | j | d t | | � 7} n t | d � t k r� | | j | d t | | � 7} n | | j | t | | � S)z:Return the object as a GNU header block sequence. r� r� r� r~ ) � GNU_MAGICr$ r� �_create_gnu_long_header�GNUTYPE_LONGLINKr� �GNUTYPE_LONGNAMEr� rB )r} r� r( r) rJ r* r* r+ r� = s ##zTarInfo.create_gnu_headerc C s� t | d <| j j � } x� d d t f d d t f d d f D]� \ } } } | | k r_ q> n y | | j d d � Wn# t k r� | | | | <w> Yn Xt | | � | k r> | | | | <q> q> Wx� d D]� \ } } | | k r� d | | <q� n | | } d | k o d | d k n s5t | t � r� t | � | | <d | | <q� q� W| rt| j | t | � } n d } | | j | t d d � 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. r� r~ r r� r r � r! r6 r7 r r4 r r � r r r r� r� )�unamer� r� )�gnamer� r� �zuidr4 �zgidr4 �zsizer� �zmtimer� )r� r� r� r� )r� r� �copyr� r� r# �UnicodeEncodeErrorr$ � isinstance�float�str�_create_pax_generic_header�XHDTYPEr� r� ) r} r� r( r� r~ Zhnamer' rE �valrJ r* r* r+ r� K s4 4zTarInfo.create_pax_headerc C s | j | t d � S)zAReturn the object as a pax global header block sequence. zutf-8)r �XGLTYPE)�clsr� r* r* r+ �create_pax_global_header| s z TarInfo.create_pax_global_headerc C s� | d t d � } x* | r@ | d d k r@ | d d � } q W| t | � d � } | d d � } | s� t | � t k r� t d � � n | | f S)zUSplit a name longer than 100 chars into a prefix and a name part. Nr r� zname is too longr- r- r- )� LENGTH_PREFIXr$ r� r< )r} r~ 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 r< | t | t 7} n | S)zdReturn the string payload filled with zero bytes up to the next 512 byte border. 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 for name. z ././@LongLinkr~ r� r r� )r# r% r$ r� r� r� r )r r~ r� r( r) r� r* r* r+ r� � s z TarInfo._create_gnu_long_headerc C s� d } xJ | j � D]< \ } } y | j d d � Wq t k rN d } PYq Xq Wd } | rl | d 7} n x� | j � D]� \ } } | j d � } | r� | j | d � } n | j d � } t | � t | � d } d } } x0 | t t | � � } | | k r Pn | } q� W| t t | � d � d | d | d 7} qy Wi } d | d <| | d <t | � | d <t | d <| j | t d d � | j | � 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. Fzutf-8r7 Tr� s 21 hdrcharset=BINARY r� r� r r6 � � =s z././@PaxHeaderr~ r� r r� r� ) �itemsr# r r$ r rA r� r� r� r ) r r� r� r( Zbinary�keyword�valueZrecords�lr> r0 r� r* r* r+ r � s< 1 z"TarInfo._create_pax_generic_headerc C sf t | � d k r! t d � � n t | � t k rB t d � � n | j t � t k rf t d � � n t | d d � � } | t | � k r� t d � � n | � } t | d d � | | � | _ t | d d � � | _ t | d d � � | _ t | d d � � | _ t | d d � � | _ t | d d � � | _ | | _ | d d � | _ t | d d � | | � | _ t | d d � | | � | _ t | d d � | | � | _ t | d d � � | _ t | d d � � | _ t | d d � | | � } | j t k r6| j j d � r6t | _ n | j t k rd } g } x� t d � D]u } y< t | | | d � � } t | | d | d � � } Wn t k r�PYn X| j | | f � | d 7} q^Wt | d � } t | d d � � } | | | f | _ n | j! � r6| j j" d � | _ n | rb| j t# k rb| d | j | _ n | S) zAConstruct a TarInfo object from a 512 byte bytes object. 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� isextended�origsizer* r* r+ �frombuf� sZ ! " zTarInfo.frombufc C sP | j j t � } | j | | j | j � } | j j � t | _ | j | � S)zOReturn the next TarInfo object from TarFile object tarfile. ) r� rP r� r) r( r) r� r� � _proc_member)r r� rJ r$ r* r* r+ � fromtarfile: 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 | � Sd S)zYChoose the right processing method depending on the type and call it. N) r� r� r� � _proc_gnulongr � _proc_sparser r �SOLARIS_XHDTYPE� _proc_pax� _proc_builtin)r} r� r* r* r+ r* O s zTarInfo._proc_memberc C sx | j j � | _ | j } | j � s6 | j t k rO | | j | j � 7} n | | _ | j | 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� r( r) )r} r� r� r* r* r+ r0 \ s zTarInfo._proc_builtinc C s� | j j | j | j � � } y | j | � } Wn t k rQ t d � � Yn X| j | _ | j t k r� t | | j | j � | _ n- | j t k r� t | | j | j � | _ n | S)zSProcess the blocks that hold a GNU longname or longlink member. z missing or bad subsequent header)r� rP r3 r r+ rm rq r� r� r� r1 r( r) r~ r� r� )r} r� rJ �nextr* r* r+ r, m s zTarInfo._proc_gnulongc C s& | j \ } } } | ` x� | r� | j j t � } d } x� t d � D]� } y< t | | | d � � } t | | d | d � � } Wn t k r� PYn X| r� | r� | j | | f � n | d 7} qF Wt | d � } q W| | _ | j j � | _ | j | j | j � | _ | | _ | S)z8Process a GNU sparse header plus extra headers. r � r� r i� )r� r� rP r� r9 r@ r< r� r r� r� r� r3 r r� ) r} r� r% r' r( rJ r� r? r� r& r* r* r+ r- � s( " zTarInfo._proc_sparsec C s� | j j | j | j � � } | j t k r9 | j } n | j j � } t j d | � } | d k r� | j d � j d � | d <n | j d � } | d k r� | j } n d } t j d � } d } x� | j | | � } | s� Pn | j � \ } } t | � } | | j d � d | j d � | d � } | j | d d | j � } | t k rz| j | | | j | j � } n | j | d d | j � } | | | <| | 7} q� Wy | j | � } Wn t k r�t d � � Yn Xd | k r | j | | � nb d | k r"| j | | | � n@ | j d � d k rb| j d � d k rb| j | | | � n | j t t f k r�| j | | j | j � | j | _ d | k r�| j! } | j" � s�| j t# k r�| | j | j � 7} n | | _ q�n | S)zVProcess an extended or global header as described in POSIX.1-2008. s \d+ hdrcharset=([^\n]+)\nNr zutf-8� hdrcharsetZBINARYs (\d+) ([^=]+)=r r z missing or bad subsequent headerzGNU.sparse.mapzGNU.sparse.sizezGNU.sparse.major�1zGNU.sparse.minorr8 r )$r� rP r3 r r� r r� r �re�search�groupr/ r r( �compile�match�groupsr: r^ r� �_decode_pax_fieldr) �PAX_NAME_FIELDSr+ rm rq �_proc_gnusparse_01�_proc_gnusparse_00�_proc_gnusparse_10r r. r4 r� r� r1 r2 )r} r� rJ r� r= r7 r( Zregexr� r' r r r5 r� r* r* r+ r/ � s` . * zTarInfo._proc_paxc C s� g } x6 t j d | � D]" } | j t | j d � � � q Wg } x6 t j d | � D]" } | j t | j d � � � qX Wt t | | � � | _ d S)z?Process a GNU tar extended sparse header, version 0.0. s \d+ GNU.sparse.offset=(\d+)\nr s \d+ GNU.sparse.numbytes=(\d+)\nN)r9 �finditerr� r: r; �list�zipr� )r} r5 r� rJ Zoffsetsr= r& r* r* r+ rB s zTarInfo._proc_gnusparse_00c C sV d d � | d j d � D� } t t | d d d � | d d d � � � | _ d S)z?Process a GNU tar extended sparse header, version 0.1. c S s g | ] } t | � � q Sr* )r: )�.0�xr* r* r+ � <listcomp> s z.TarInfo._proc_gnusparse_01.<locals>.<listcomp>zGNU.sparse.map�,Nr r )�splitrE rF r� )r} r5 r� r� r* r* r+ rA s zTarInfo._proc_gnusparse_01c C s� d } g } | j j t � } | j d d � \ } } t | � } xj t | � | d k r� d | k r� | | j j t � 7} n | j d d � \ } } | j t | � � qE W| j j � | _ t t | d d d � | d d d � � � | _ d S)z?Process a GNU tar extended sparse header, version 1.0. Ns r r ) r� rP r� rK r: r$ r� r� r� rE rF r� )r} r5 r� r� Zfieldsr� rJ Znumberr* r* r+ rC 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 | | � } Wq� t k r� d } Yq� Xn | d k r� | j d � } n t | | | � q q W| j � | _ d S) zoReplace fields with supplemental information from a previous pax extended or global header. 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+ r4 & s" zTarInfo._apply_pax_infoc C s= y | j | d � SWn" t k 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? = s zTarInfo._decode_pax_fieldc C s0 t | t � \ } } | r( | d 7} n | t S)z_Round up a byte count by BLOCKSIZE and return it, e.g. _block(834) => 1024. r )rO r� )r} r rT rU r* r* r+ r3 E s zTarInfo._blockc C s | j t k S)N)r� � REGULAR_TYPES)r} r* r* r+ r1 N s z TarInfo.isregc C s | j � S)N)r1 )r} r* r* r+ �isfileP s zTarInfo.isfilec C s | j t k S)N)r� r� )r} r* r* r+ r! R s z TarInfo.isdirc C s | j t k S)N)r� �SYMTYPE)r} r* r* r+ �issymT s z TarInfo.issymc C s | j t k S)N)r� �LNKTYPE)r} r* r* r+ �islnkV s z TarInfo.islnkc C s | j t k S)N)r� �CHRTYPE)r} r* r* r+ �ischrX s z TarInfo.ischrc C s | j t k S)N)r� �BLKTYPE)r} r* r* r+ �isblkZ s z TarInfo.isblkc C s | j t k S)N)r� �FIFOTYPE)r} r* r* r+ �isfifo\ s zTarInfo.isfifoc C s | j d k S)N)r� )r} r* r* r+ �issparse^ s zTarInfo.issparsec C s | j t t t f k S)N)r� rV rX rZ )r} r* r* r+ �isdev` s z TarInfo.isdevN)znamezmodezuidzgidzsizezmtimezchksumztypezlinknamezunamezgnamezdevmajorzdevminorzoffsetz offset_dataz pax_headerszsparseztarfilez_sparse_structsz _link_target)4re rf rg rh � __slots__r r� r� �propertyr r� r� r r� r� �DEFAULT_FORMAT�ENCODINGr� r� r� r� � classmethodr r� � staticmethodr� r r� r r) r+ r* r0 r, r- r/ rB rA rC r4 r? r3 r1 rQ r! rS rU rW rY r[ r\ r] r* r* r* r+ r � s` 1 3? f c @ s� e Z d Z d Z d Z d Z d Z d Z e Z e Z d Z e Z e Z d d d d d d d d d d d d d d � Z e d d d e d d � � Z e d d d d � � Z e d d d d d � � Z e d d d d d � � Z e d d d d d � � Z i d d 6d d 6d d 6d d 6Z d d � Z d d � Z d! d" � Z d# d$ � Z d d d d% d& � Z d' d( d) � Z d d' d d* d d+ d, �Z d d- d. � Z! d/ d d0 d1 � Z" d2 d' d3 d4 � Z# d5 d6 � Z$ d' d7 d8 � Z% 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/ d d dM dN � Z0 dO dP � Z1 d dQ dR � Z2 dS dT � Z3 dU dV � Z4 dW dX � Z5 dY dZ � Z6 d[ d\ � Z7 d S)]r z=The TarFile Class provides an interface to tar archives. r Fr Nrs r� c C s� i d d 6d d 6d d 6} | | k r6 t d � � n | | _ | | | _ | s� | j d k r� t j j | � r� d | _ d | _ n t | | j � } d | _ nf | d k r� t | d � r� t | j t t f � r� | j } n t | d � r| j | _ n d | _ | r%t j j | � n d | _ | | _ | d k rO| | _ n | d k rg| | _ n | d k r| | _ n | d k r�| | _ n | d k r�| | _ n | | _ | d k r�| j t k r�| | _ n i | _ | d k r | | _ n | d k r| | _ n d | _ g | _ d | _ | j j � | _ i | _ yF| j d k r{d | _ | j � | _ n | j d k r,x� | j j! | j � y& | j j" | � } | j j# | � Wq�t$ k r�| j j! | j � PYq�t% k r$} z t& t | � � � WYd d } ~ Xq�Xq�Wn | j d k r�d | _ | j r�| j j' | j j( � � } | j j) | � | j t* | � 7_ q�n Wn- | j s�| j j+ � n d | _ � Yn Xd S)a� Open an (uncompressed) tar archive `name'. `mode' is either 'r' to read from an existing archive, 'a' to append data to an existing file or 'w' to create a new file overwriting an existing one. `mode' defaults to 'r'. If `fileobj' is given, it is used for reading or writing data. If it can be determined, `mode' is overridden by `fileobj's mode. `fileobj' is not closed, when TarFile is closed. �rbrs zr+b�a�wbrt z mode must be 'r', 'a' or 'w'FNr~ r\ T�aw),r< r\ �_moderv r �exists� bltn_openr� r{ r r~ r rA �abspathr� rF r� � dereference� ignore_zerosr( r) r� r� �debug� errorlevelr� �members�_loadedr� r� �inodes� firstmemberr5 r� r+ r� rp rm rj r r rQ r$ r� )r} r~ r\ r� rF r� rl rm r( r) r� rn ro Zmodes�erJ r* r* r+ r ~ s� " ! , zTarFile.__init__c K sG | r | r t d � � n | d k r� x� | j D]� } t | | j | � } | d k rj | j � } n y | | d | | � SWq3 t t f k r� } z$ | d k r� | j | � n w3 WYd d } ~ Xq3 Xq3 Wt d � � nVd | k rh| j d d � \ } } | pd } | pd } | | j k rEt | | j | � } n t d | � � | | | | | � Sd | k r| j d d � \ } } | p�d } | p�d } | d k r�t d � � n t | | | | | � } y | | | | | � } Wn | j � � Yn Xd | _ | S| d k r7| 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 '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:*Nz%file could not be opened successfully�:r r� zunknown compression type %r�|rt zmode must be 'r' or 'w'Fre zundiscernible mode)rs ru )rs rt )re rt ) r< � OPEN_METHr` r� rj rk r� rK r� r� r� �taropen) r r~ r\ r� r� �kwargsr� �funcZ saved_posrt r[ �streamr� r* r* r+ r � sN z TarFile.openc K s. | d k r t d � � n | | | | | � S)zCOpen uncompressed tar archive name for reading or writing. rs re rt z mode must be 'r', 'a' or 'w')rs re rt )r< )r r~ r\ r� rz r* r* r+ ry ; s zTarFile.taropenr� c K s2 | d k r t d � � n y d d l } | j Wn$ t t f k rX t d � � Yn Xy | j | | d | | � } Wn< t k r� | d k r� | d k r� t d � � n � Yn Xy | j | | | | � } WnN t k r| j � | d k r t d � � n � Yn | j � � Yn Xd | _ | S) zkOpen gzip compressed tar archive name for reading or writing. Appending is not allowed. rs rt zmode must be 'r' or 'w'r Nz gzip module is not availablerV znot a gzip fileF)rs rt ) r< �gzipZGzipFiler� �AttributeErrorrk r� rj ry r� r� )r r~ r\ r� � compresslevelrz r} r� r* r* r+ �gzopenC s2 zTarFile.gzopenc K s� | d k r t d � � n y d d l } Wn t k rK t d � � Yn X| j | p[ | | d | �} y | j | | | | � } WnT t t f k r� | j � | d k r� t d � � n � Yn | j � � Yn Xd | _ | S) zlOpen bzip2 compressed tar archive name for reading or writing. Appending is not allowed. rs rt zmode must be 'r' or 'w'.r Nzbz2 module is not availabler znot a bzip2 fileF)rs rt ) r< r� r� rk ZBZ2Filery r� �EOFErrorr� rj r� )r r~ r\ r� r rz r� r� r* r* r+ �bz2opene s( zTarFile.bz2openc K s� | d k r t d � � n y d d l } Wn t k rK t d � � Yn X| j | p[ | | d | �} y | j | | | | � } WnW | j t f k r� | j � | d k r� t d � � n � Yn | j � � Yn Xd | _ | S) zkOpen lzma compressed tar archive name for reading or writing. Appending is not allowed. rs rt zmode must be 'r' or 'w'r Nz lzma module is not available�presetznot an lzma fileF)rs rt ) r< r� r� rk ZLZMAFilery r� r� r� rj r� )r r~ r\ r� r� rz r� r� r* r* r+ �xzopen� s& zTarFile.xzopenry r� r� r� r� r� r� r� c C s� | j r d Sd | _ z� | j d k r� | j j t t d � | j t d 7_ t | j t � \ } } | d k r� | j j t t | � q� n Wd | j s� | j j � n Xd S)zlClose the TarFile. In write-mode, two finishing zero blocks are appended to the archive. NTrg r r ) r� r\ r� rQ r% r� r� rO � RECORDSIZEr� r� )r} rT rU r* r* r+ r� � s " z TarFile.closec C s2 | j | � } | d k r. t d | � � n | 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 � n | 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. )�_checkrq �_loadrp )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~ )rG r� r* r* r+ rI � s z$TarFile.getnames.<locals>.<listcomp>)r� )r} r* r* r+ �getnames� s zTarFile.getnamesc C s^ | j d � | d k r% | j } n | d k r: | } n t j j | � \ } } | j t j d � } | j d � } | j � } | | _ | d k r� t t d � r� | j r� t j | � } q� t j | � } n t j | j � � } d } | j } t j | � r�| j | j f } | j rj| j d k rj| | j k rj| | j | k rjt } | j | } qt } | d r| | j | <qn� t j | � r�t } ns t j | � r�t } n[ t j | � r�t } t j | � } n4 t j | � r�t } n t j! | � rt" } n d S| | _ | | _# | j$ | _% | j& | _' | t k r]| j( | _) n d | _) | j* | _+ | | _, | | _- t. r�y t. j/ | j% � d | _0 Wq�t1 k r�Yq�Xn t2 r�y t2 j3 | j' � d | _4 Wq�t1 k r�Yq�Xn | t t" f k rZt t d � rZt t d � rZt j5 | j6 � | _7 t j8 | j6 � | _9 qZn | S) aO Create a TarInfo object for either the file `name' or the file object `fileobj' (using os.fstat on its file descriptor). You can modify some of the TarInfo's attributes before you add it using addfile(). If given, `arcname' specifies an alternative name for the file in the archive. rg Nr� �lstatr� r r �major�minor):r� r~ rv r � splitdriver� �sep�lstripr� r� r{ rl r� rZ �fstat�fileno�st_mode�S_ISREG�st_ino�st_dev�st_nlinkrr rT r� �S_ISDIRr� �S_ISFIFOrZ �S_ISLNKrR �readlink�S_ISCHRrV �S_ISBLKrX 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� ZstmdZinoder� r* r* r+ � gettarinfo� s~ " zTarFile.gettarinfoTc C sK | j � x:| D]2} | r� t t j | j � � t d | j pH | j | j pW | j f � | j � sw | j � r� t d d | j | j f � n t d | j � t d t j | j � d d � � n t | j | j � r� d n d � | r<| j � rt d | j � n | j � r<t d | j � q<n t � q Wd S) z�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. z%s/%sz%10sz%d,%dz%10dz%d-%02d-%02d %02d:%02d:%02dNr� r� r� z-> zlink to )r� rd rZ r[ r\ r r r! r rW rY r� r� r r� Z localtimer r~ r! rS r� rU rc )r} �verboser� r* r* r+ rE ; s& !# z TarFile.list�filterc C s� | j d � | d k r" | } n | d k rt d d l } | j d t d � | | � rt | j d d | � d Sn | 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 r;| | � } | d k r;| j d d | � d Sn | j � rrt | d � � } | j | | � Wd QXn� | j � r�| j | � | r�xT t j | � D]@ } | j t j j | | � t j j | | � | | d | �q�Wq�n | 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. rg Nr z use the filter argument insteadr ztarfile: Excluded %rztarfile: Skipped %rr z tarfile: Unsupported type %rrd r� )r� rW rX rY �_dbgr~ rv r rk r� r1 rj �addfiler! �listdir�addr� ) r} r~ r� Z recursiveZexcluder� rW r� �fr* r* r+ r� X 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} n | j | t 7_ n | j j | � d S)a] Add the TarInfo object `tarinfo' to the archive. If `fileobj' is given, tarinfo.size bytes are read from it and added to the archive. You can create TarInfo objects using gettarinfo(). On Windows platforms, `fileobj' should always be opened with mode 'rb' to avoid irritation about the file size. rg Nr r )r� r r� rF r( r) r� rQ r� r$ rN r rO r� r% rp r� )r} r� r� rJ rT rU r* r* r+ r� � s zTarFile.addfile�.c C sO g } | d k r | } n x_ | D]W } | j � r\ | j | � t j | � } d | _ n | j | | d | j � �q" W| j d d d � � | j � x� | D]� } t j j | | j � } y4 | j | | � | j | | � | j | | � Wq� t k rF} z. | j d k r � n | j d d | � WYd d } ~ Xq� Xq� Wd S) aM 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(). Ni� � set_attrs�keyc S s | j S)N)r~ )re 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 ro r� )r} r rp Z directoriesr� �dirpathrt r* r* r+ � extractall� s* ! zTarFile.extractallr� c C sa | j d � t | t � r. | j | � } n | } | j � r^ t j j | | j � | _ n y, | j | t j j | | j � 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 r6� n | j d d | � WYd d } ~ Xn Xd S)ax 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. rs r� r Nr z tarfile: %sztarfile: %s %r)r� r r r� rU rv r r� r� r� �_extract_memberr~ r� ro �filenamer� �strerrorri )r} �memberr r� r� rt 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� r1 r� r2 � fileobjectrU rS r� r� rl � extractfile�_find_link_target)r} r� r� r* r* r+ r� � s zTarFile.extractfilec C s� | j d � } | j d t j � } t j j | � } | r_ t j j | � r_ t j | � n | j � sw | 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 � r5| j | | � n] | j � sM| j � r`| j | | � n2 | j t k r�| j | | � n | j | | � | r�| j | | � | j � s�| j | | � | j | | � q�n d S)z\Extract the TarInfo object tarinfo to a physical file called targetpath. r� r z%s -> %sN) r" r� rv r� r �dirnameri �makedirsrU rS r� r~ r� r1 �makefiler! �makedirr[ �makefiforW rY �makedev�makelinkr� r2 � makeunknownr� r� r� )r} r� � targetpathr� 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� G s zTarFile.makedirc C s� | j } | j | j � t | d � �� } | j d k rw xP | j D], \ } } | j | � t | | | t � qD Wn t | | | j t � | j | j � | j � Wd QXd S)z'Make a file called targetpath. rf N) r� r� r� rj r� rN rj r �truncate)r} r� r� �source�targetr� r r* r* r+ r� Q 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� ` 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� h s zTarFile.makefifoc C s� t t d � s t t d � r/ t d � � n | j } | j � rT | 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\ rY rZ �S_IFBLK�S_IFCHRr� r� r� r� )r} r� r� r\ r* r* r+ r� p 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) rS rv �symlinkr� r ri r� �linkr� r� �symlink_exceptionr� ri )r} r� r� r* r* r+ r� s zTarFile.makelinkc C s t rt t d � rt j � d k ry t j | j � d } Wn t k r^ | 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 | | | � Wqt k r} z t d � � WYd d } ~ XqXn d S)z6Set owner of targetpath according to tarinfo. �geteuidr r �lchownzcould not change ownerN)r� r{ rv r� r� Zgetgrnamr! r� r �getpwnamr r rS r� r� r� ri )r} r� r� �g�urt r* r* r+ r� � s ' z TarFile.chownc C sa t t d � r] y t j | | j � Wq] t k rY } z t d � � WYd d } ~ Xq] Xn d S)zASet file permissions of targetpath according to tarinfo. r� zcould not change modeN)r{ rv r� r\ r� ri )r} r� r� rt 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� rt r* r* r+ r� � s z TarFile.utimec C sh | 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 } x�y | j j | � } Wn�t k r} z@ | j r� | j d d | j | f � | j t 7_ w� n WYd d } ~ Xn1t k r�} zd | j rS| j d d | j | f � | j t 7_ w� n$ | j d k rwt t | � � � n WYd d } ~ Xn� t k r�| j d k r�t d � � n Yn t k r } z) | j d k r�t t | � � � n WYd d } ~ Xn7 t k r6} z t t | � � � WYd d } ~ Xn XPq� W| d k r[| 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� rs r� r� r� r� rP rj r� r+ rp rm r� r� r= r rn ro rq rp r� rq )r} �mr� rt r* r* r+ r5 � sL ' '% z TarFile.nextc C s� | j � } | d k r4 | d | j | � � } n | rO t j j | � } n xK t | � D]= } | r� t j j | j � } n | j } | | k r\ | Sq\ Wd S)z}Find an archive member by name from bottom to top. If tarinfo is given, it is used as the starting point. N)r� �indexrv r �normpath�reversedr~ )r} r~ r� � normalizerp r� Z member_namer* r* r+ r� � s zTarFile._getmemberc C s0 x | j � } | d k r Pq q Wd | _ d S)zWRead through the entire archive file and look for readable members. NT)r5 rq )r} r� r* r* r+ r� s z TarFile._loadc C sW | j r" t d | j j � � n | d k rS | j | k rS t d | j � � n 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 | � � n | S)zZFind the target member of a symlink or hardlink member in the archive. r� Nr� r� Tzlinkname %r not found) rS r� r� rv r r� r~ r� r� r� )r} r� r� �limitr� r* r* r+ r� s 0 zTarFile._find_link_targetc C s$ | j r t | j � St | � Sd S)z$Provide an iterator object. N)rq �iterrp �TarIter)r} r* r* r+ �__iter__2 s zTarFile.__iter__c C s) | | j k r% t | d t j �n d S)z.Write debugging output to sys.stderr. �fileN)rn rc ra �stderr)r} �level�msgr* r* r+ r� : s z TarFile._dbgc C s | j � | S)N)r� )r} r* r* r+ � __enter__@ s zTarFile.__enter__c C s? | d k r | j � n" | j s2 | j j � n d | _ d S)NT)r� r� r� r� )r} r� r � tracebackr* r* r+ �__exit__D s zTarFile.__exit__)8re rf rg rh rn rl rm ro r` rF ra r( r) r r� r� r� r rb r� r ry r� r� r� rx r� r� r� r� r� rE r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r5 r� r� r� r� r� r� r� r� r* r* r* r+ r d st kO! b =&# 0 6 c @ s: e Z d Z d Z d d � Z d d � Z d d � Z d S) r� zMIterator Class. for tarinfo in TarFile(...): suite... c C s | | _ d | _ d S)z$Construct a TarIter object. r N)r� r� )r} r� r* r* r+ r V s zTarIter.__init__c C s | S)z Return iterator object. r* )r} r* r* r+ r� [ s zTarIter.__iter__c C s� | j d k r3 | j j d k r3 | j j � } np | j t | j j � k rd | j j | j } n? | j j s� | j j � } | s� d | j _ t � q� n t � | j d 7_ | S)z�Return the next item using TarFile's next() method. When all members have been read, set TarFile as _loaded. r NTr )r� r� rs r5 r$ rp rq � StopIteration)r} r� r* r* r+ �__next___ s ! zTarIter.__next__N)re rf rg rh r r� r� r* r* r* r+ r� O s r� c C s; y t | � } | j � d SWn t k r6 d SYn Xd S)zfReturn True if name points to a tar archive that we are able to handle, else return False. TFN)r r� r )r~ r� r* r* r+ r x s c C s� d d l } d } | j d | � } | j d d d d d d d d �| j � } | j d d d d d d �| j d d d d d d9 d d �| j d d d d d d: d d �| j d d d d d d �| j � } | j rq| j } t | � rUt | d � �* } | j � t | j � d t j �Wd QX| j rnt d! j | � � qnq�| j d" d# j | � � n�| j r�| j } t | � r�t j | d$ � � } | j d% | j � Wd QXq�| j d" d# j | � � n| j r�t | j � d" k r| j d } t j } n= t | j � d& k r:| j \ } } n | j d" | j � � t | � r�t j | d$ � � } | j d' | � Wd QX| j r�| d( k r�d) j | � } n d* j | | � } t | � q�q�| j d" d# j | � � n | j r�| j j d � } t j j | � \ } } i d+ d, 6d+ d- 6d. d/ 6d. d0 6d1 d2 6d1 d3 6d1 d4 6d1 d5 6} | | k rwd6 | | n d7 } | j } t j | | � �% } x | D] } | j | � q�WWd QX| j r�t d8 j | � � q�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. zr:*r� r r r� z{!r} file is extracted.z+{!r} file is extracted into {!r} directory.r� z.gzz.tgzr� z.xzz.txzr� z.bz2z.tbzz.tbz2z.tb2zw:rt z{!r} file created.)r� r� )r� r� ) �argparse�ArgumentParser� add_argumentZ add_mutually_exclusive_group� parse_argsZtestr r r� rc ra r� r� rF �exitrE r r� r$ rv �curdirZ format_helpr� �create�popr �splitextr� )r� r� �parserr; �argsrR r� Ztfr r� Ztar_name�_ZextZ compressionsZtar_modeZ tar_files� file_namer* r* r+ �main� s� r �__main__)brh �version� __author__Z__date__Z __cvsid__� __credits__�builtinsr rj ra rv r� rM rZ r� rI r r9 r� r� r� r~ �NotImplementedErrorr� r� � NameError�__all__r% r� r� r� r� r� r� r r� r rT rR rV rX r� rZ ZCONTTYPEr� r� r r r r. r� rB r� r` r2 rP r# rM r@ r r: rN r~ ra �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