Current File : //usr/local/lib/python3.8/__pycache__/tarfile.cpython-38.pyc
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z0.9.0u" Lars Gustäbel (lars@gustaebel.de)u4 Gustavo Niemeyer, Niels Gustäbel, Richard Townsend. )openNTarFileTarInfo
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GNU_FORMAT
PAX_FORMATDEFAULT_FORMATr i s ustar s ustar 00d 0 1 2 3 4 5 6 7 L K S x g X )pathlinkpathsizemtimeuidgidunamegnamer% r& r+ r, )Zatimectimer( r) r* r' ntutf-8c C s( | ||} | d| |t| t S )z8Convert a string to a null-terminated bytes object.
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ValueErrorInvalidHeaderError)r3 nir7 r7 r8 nti s rN rA c C s t | } d| kr$d|d k rDn n td|d | f dt }n|tkrd|d | krrd|d k rn nV| dkrtdg}ntdg}d| | } t|d D ] }|d| d@ | dL } qntd |S )
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rT c C s0 dt td| }dt td| }||fS )a Calculate the checksum for a member's header by summing up all
characters except for the chksum field which is treated as if
it was filled with spaces. According to the GNU tar sources,
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which will be different if there are chars in the buffer with
the high bit set. So we calculate two checksums, unsigned and
signed.
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s c @ s e Zd ZdZdS )r z&Exception for unreadable tar archives.Nro r7 r7 r7 r8 r s c @ s e Zd ZdZdS )r z.Exception for unavailable compression methods.Nro r7 r7 r7 r8 r s c @ s e Zd ZdZdS )r z=Exception for unsupported operations on stream-like TarFiles.Nro r7 r7 r7 r8 r s c @ s e Zd ZdZdS )r z!Base exception for header errors.Nro r7 r7 r7 r8 r s c @ s e Zd ZdZdS )EmptyHeaderErrorz Exception for empty headers.Nro r7 r7 r7 r8 rt s rt c @ s e Zd ZdZdS )TruncatedHeaderErrorz Exception for truncated headers.Nro r7 r7 r7 r8 ru s ru c @ s e Zd ZdZdS )EOFHeaderErrorz"Exception for end of file headers.Nro r7 r7 r7 r8 rv " s rv c @ s e Zd ZdZdS )rK z Exception for invalid headers.Nro r7 r7 r7 r8 rK % s rK c @ s e Zd ZdZdS )SubsequentHeaderErrorz3Exception for missing and invalid extended headers.Nro r7 r7 r7 r8 rw ( s rw c @ s0 e Zd ZdZdd Zdd Zdd Zdd Zd
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A stream-like object could be for example: sys.stdin,
sys.stdout, a socket, a tape device etc.
_Stream is intended to be used only internally.
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| | _n|dkrtd| W n& | j s| j d| _ Y nX dS )z$Construct a _Stream object.
TNF* r gzz zlib module is not availablerz bz2bz2 module is not availablexz lzma module is not availabletarunknown compression type %r) _extfileobjrx _StreamProxy getcomptyper r comptypefileobjrc rX posclosedzlib ImportErrorr crc32crc
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_Stream.writec C sN | j |7 _ t| j | jkrJ| j| j d| j | j | jd | _ qdS )z]Write string s to the stream if a whole new block
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N)rX r1 rc r r_ r r7 r7 r8 Z__write s z_Stream.__writec C s | j r
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_Stream.closec C s | j | j j | _d| _| ddkr0td| ddkrFtdt| d}| d |d @ rt| dd
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r r$ s not a gzip filer# z unsupported compression method rB rA N) r
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S ) r zsSmall proxy class that enables transparent compression
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c C s || _ | j t| _d S r )r r^ BLOCKSIZErX )r r r7 r7 r8 r > s z_StreamProxy.__init__c C s | j j| _| jS r )r r^ rX r r7 r7 r8 r^ B s
z_StreamProxy.readc C sP | j drdS | j dd dkr8| j dd dkr8d S | j d
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startswithr r7 r7 r8 r F s $ z_StreamProxy.getcomptypec C s | j d S r )r r r r7 r7 r8 r P s z_StreamProxy.closeN)rp rq rr rs r r^ r r r7 r7 r7 r8 r 9 s
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dd Zdd ZdS ) _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|dd | _d| _|d kr>d|fg}d| _g | _d}| j}|D ]L\}}||kr|| j d||d f | j d||| |f ||7 }|| }qX|| jk r| j d|| jd f d S )Nr r FT)
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| j S r )r seekabler r7 r7 r8 r s z_FileInFile.seekablec C s | j S )z*Return the current file position.
)r r r7 r7 r8 r s z_FileInFile.tellc C s |t jkr tt|d| j| _nj|t jkr\|dk rFt| j| d| _qt| j| | j| _n.|t jkrtt| j| | jd| _ntd| jS )z(Seek to a position in the file.
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| 7 }||8 }| j|7 _q,|S )z!Read data from the file.
Nr r r# rZ ) r' r r r r r1 r r r^ r r2 ) r r' rX datastartstopr r4 rf r7 r7 r8 r^ s,
z_FileInFile.readc C s& | t|}||d t|< t|S r )r^ r1 )r rf rX r7 r7 r8 readinto s z_FileInFile.readintoc C s
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r c s e Zd Z fddZ ZS ) ExFileObjectc s& t |j|j|j|j}t | d S r )r r offset_datar' sparsesuperr )r tarfiletarinfor __class__r7 r8 r s
zExFileObject.__init__)rp rq rr r
__classcell__r7 r7 r r8 r s r c @ s e Zd ZdZedddddddd d
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ed"fd#d$Zd%d& Zd'd( Zd)d* Zed+d, Zd-d. Zed/d0 Zed1d2 Zed3d4 Zed5d6 Zed7d8 Zed9d: Z d;d< Z d=d> Z d?d@ Z dAdB Z dCdD Z!dEdF Z"dGdH Z#dIdJ Z$dKdL Z%dMdN Z&dOdP Z'dQdR Z(dSdT Z)dUdV Z*dWdX Z+dYdZ Z,d[d\ Z-d]d^ Z.d_d` Z/dadb Z0dcdd Z1dS )fr 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.
zName of the archive member.zPermission bits.z6User ID of the user who originally stored this member.z7Group ID of the user who originally stored this member.zSize in bytes.zTime of last modification.zHeader checksum.zFile type. type is usually one of these constants: REGTYPE, AREGTYPE, LNKTYPE, SYMTYPE, DIRTYPE, FIFOTYPE, CONTTYPE, CHRTYPE, BLKTYPE, GNUTYPE_SPARSE.zcName of the target file name, which is only present in TarInfo objects of type LNKTYPE and SYMTYPE.z
User name.z Group name.zDevice major number.zDevice minor number.zThe tar header starts here.z The file's data starts here.zMA dictionary containing key-value pairs of an associated pax extended header.zSparse member information.N)r r r) r* r' r( chksumtypelinknamer+ r, devmajordevminorr r pax_headersr r _sparse_structs _link_targetr c C sj || _ d| _d| _d| _d| _d| _d| _t| _d| _ d| _
d| _ d| _ d| _
d| _d| _d| _i | _dS )zXConstruct a TarInfo object. name is the optional name
of the member.
i r r N)r r r) r* r' r( r REGTYPEr r r+ r, r r r r r r r r r7 r7 r8 r s" zTarInfo.__init__c C s | j S )z(In pax headers, "name" is called "path".r r r7 r7 r8 r% s z TarInfo.pathc C s
|| _ d S r r r r7 r7 r8 r%
s c C s | j S )z0In pax headers, "linkname" is called "linkpath".r r r7 r7 r8 r& s zTarInfo.linkpathc C s
|| _ d S r r )r r r7 r7 r8 r& s c C s d| j j| jt| f S )Nz<%s %r at %#x>)r rp r idr r7 r7 r8 __repr__ s zTarInfo.__repr__c C sl | j | jd@ | j| j| j| j| j| j| j| j | j
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krh|d dsh|d d7 < |S )z9Return the TarInfo's attributes as a dictionary.
)
r r r) r* r' r( r r r r+ r, r r r r /)r r r) r* r' r( r r r r+ r, r r DIRTYPEr )r infor7 r7 r8 get_info s" zTarInfo.get_infosurrogateescapec C sT | }|tkr | |||S |tkr4| |||S |tkrH| ||S tddS )z<Return a tar header as a string of 512 byte blocks.
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create_ustar_headerr create_gnu_headerr create_pax_headerrJ )r rS r5 r6 r r7 r7 r8 tobuf2 s z
TarInfo.tobufc C sn t |d< t|d ||tkr(tdt|d ||tkr^| |d ||\|d< |d< | |t||S )z3Return the object as a ustar header block.
magicr zlinkname is too longr prefix) POSIX_MAGICr1 r0 LENGTH_LINKrJ LENGTH_NAME_posix_split_name_create_headerr
)r r r5 r6 r7 r7 r8 r @ s zTarInfo.create_ustar_headerc C s t |d< d}t|d ||tkr<|| |d t||7 }t|d ||tkrl|| |d t||7 }|| |t || S )z:Return the object as a GNU header block sequence.
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r r r% r r& )r+ r+ )r, r, r rC rD ))r) rA )r* rA )r' )r( r r rA r# r r )r r copyr r r0 UnicodeEncodeErrorr1
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zTarInfo.create_pax_headerc C s | |tdS )zAReturn the object as a pax global header block sequence.
r/ )r XGLTYPE)clsr r7 r7 r8 create_pax_global_header s z TarInfo.create_pax_global_headerc C s~ | d}tdt|D ]T}d|d| }d||d }t|||tkrt|||tkr qvqtd||fS )zUSplit a name longer than 100 chars into a prefix
and a name part.
r r# Nzname is too long)splitrG r1 r r0
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zTarInfo._posix_split_namec C sV t | ddd||t| ddd@ d|t| ddd|t| d dd|t| d
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d | d |d d }|S ) zReturn a header block. info is a dictionary with file
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&zTarInfo._create_headerc C s. t t| t\}}|dkr*| t| t 7 } | S )zdReturn the string payload filled with zero bytes
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r )r] r1 r r2 )payloadrd re r7 r7 r8 _create_payload s zTarInfo._create_payloadc C sR | ||t }i }d|d< ||d< t||d< t|d< | |t||| | S )zTReturn a GNUTYPE_LONGNAME or GNUTYPE_LONGLINK sequence
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f|_ |! rP|j "d|_ |rr|jt#krr|d |j |_ |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 )$r1 rt r ru countr2 rv rN rY rK r> r r r) r* r' r( r r r r+ r, r r AREGTYPEr r GNUTYPE_SPARSErG rJ r boolr isdirrstrip GNU_TYPES)r" rX r5 r6 r objr
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zTarInfo.frombufc C s8 |j t}| ||j|j}|j t |_||S )zOReturn the next TarInfo object from TarFile object
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missing or bad subsequent header)r r^ rQ r' rI r rw r r r r> r5 r6 r r r )r r rX nextr7 r7 r8 rJ ~ s
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| S )z8Process a GNU sparse header plus extra headers.
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|_!| S )zVProcess an extended or global header as described in
POSIX.1-2008.
s \d+ hdrcharset=([^\n]+)\nNr# r/
hdrcharsetZBINARYs (\d+) ([^=]+)=r rF r$ rS GNU.sparse.mapGNU.sparse.sizezGNU.sparse.major1zGNU.sparse.minorrE r' )%r r^ rQ r' r r! r r researchgroupr< r& r5 compilematchgroupsrH rK ri r _decode_pax_fieldr6 PAX_NAME_FIELDSrI r rw _proc_gnusparse_01_proc_gnusparse_00_proc_gnusparse_10r rL rR r r rO rP )r r rX r r^ rV r5 Zregexr r4 r/ r0 rT r r7 r7 r8 rM sh
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zTarInfo._proc_paxc C sh g }t d|D ]}|t|d qg }t d|D ]}|t|d q:tt|||_dS )z?Process a GNU tar extended sparse header, version 0.0.
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<listcomp>& s z.TarInfo._proc_gnusparse_01.<locals>.<listcomp>rW ,Nr$ r# )r$ rf rg r )r rT r r r7 r7 r8 rb # s zTarInfo._proc_gnusparse_01c C s d}g }|j t}|dd\}}t|}t||d k rtd|krT||j t7 }|dd\}}|t| q,|j |_t t
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Nr, r# r$ ) r r^ r r$ rH r1 r r r rf rg r )r rT r r fieldsr rX Znumberr7 r7 r8 rd ) s zTarInfo._proc_gnusparse_10c C s | D ]\}}|dkr&t| d| q|dkr@t| dt| q|dkrZt| dt| q|tkr|tkrzt| |}W n tk
r d}Y nX |dkr|d}t| || q| | _dS ) zoReplace fields with supplemental information from a previous
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rD N)r< UnicodeDecodeError)r r0 r5 Zfallback_encodingZfallback_errorsr7 r7 r8 r` P s zTarInfo._decode_pax_fieldc C s" t |t\}}|r|d7 }|t S )z_Round up a byte count by BLOCKSIZE and return it,
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r# )r] r )r r; rd re r7 r7 r8 rQ X s zTarInfo._blockc C s
| j tkS z4Return True if the Tarinfo object is a regular file.)r
REGULAR_TYPESr r7 r7 r8 rO a s z
TarInfo.isregc C s | S rq )rO r r7 r7 r8 isfilee s zTarInfo.isfilec C s
| j tkS )z!Return True if it is a directory.)r r r r7 r7 r8 r? i s z
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| j tkS )z%Return True if it is a symbolic link.)r SYMTYPEr r7 r7 r8 issymm s z
TarInfo.issymc C s
| j tkS )z!Return True if it is a hard link.)r LNKTYPEr r7 r7 r8 islnkq s z
TarInfo.islnkc C s
| j tkS )z(Return True if it is a character device.)r CHRTYPEr r7 r7 r8 ischru s z
TarInfo.ischrc C s
| j tkS )z$Return True if it is a block device.)r BLKTYPEr r7 r7 r8 isblky s z
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| j d k S r )r r r7 r7 r8 issparse s zTarInfo.issparsec C s | j tttfkS )zCReturn True if it is one of character device, block device or FIFO.)r rx rz r| r r7 r7 r8 isdev s z
TarInfo.isdev)r )2rp rq rr rs dict __slots__r propertyr% setterr& r r r r r r r r
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r Fr# Nrz r c
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S )a Open an (uncompressed) tar archive `name'. `mode' is either 'r' to
read from an existing archive, 'a' to append data to an existing
file or 'w' to create a new file overwriting an existing one. `mode'
defaults to 'r'.
If `fileobj' is given, it is used for reading or writing data. If it
can be determined, `mode' is overridden by `fileobj's mode.
`fileobj' is not closed, when TarFile is closed.
rbzr+bwbxbrz ar{ ri !mode must be 'r', 'a', 'w' or 'x'r r{ FNr r Trz r r{ ri )-rJ r _moder} r% exists bltn_openr r r r r rO abspathr rS r dereference ignore_zerosr5 r6 r r debug
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zTarFile.__init__c
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| f|} W n |
Y nX d| _ | S |dkr j |||f|S t ddS )a Open a tar archive for reading, writing or appending. Return
an appropriate TarFile class.
mode:
'r' or 'r:*' open for reading with transparent compression
'r:' open for reading exclusively uncompressed
'r:gz' open for reading with gzip compression
'r:bz2' open for reading with bzip2 compression
'r:xz' open for reading with lzma compression
'a' or 'a:' open for appending, creating the file if necessary
'w' or 'w:' open for writing without compression
'w:gz' open for writing with gzip compression
'w:bz2' open for writing with bzip2 compression
'w:xz' open for writing with lzma compression
'x' or 'x:' create a tarfile exclusively without compression, raise
an exception if the file is already created
'x:gz' create a gzip compressed tarfile, raise an exception
if the file is already created
'x:bz2' create a bzip2 compressed tarfile, raise an exception
if the file is already created
'x:xz' create an lzma compressed tarfile, raise an exception
if the file is already created
'r|*' open a stream of tar blocks with transparent compression
'r|' open an uncompressed stream of tar blocks for reading
'r|gz' open a gzip compressed stream of tar blocks
'r|bz2' open a bzip2 compressed stream of tar blocks
'r|xz' open an lzma compressed stream of tar blocks
'w|' open an uncompressed stream for writing
'w|gz' open a gzip compressed stream for writing
'w|bz2' open a bzip2 compressed stream for writing
'w|xz' open an lzma compressed stream for writing
znothing to open)rz r:*c s j | dkS )Ntaropen) OPEN_METH)r r" r7 r8 not_compressed< s z$TarFile.open.<locals>.not_compressedkeyNrz z%file could not be opened successfully:r# r r |ry zmode must be 'r' or 'w'Fr zundiscernible mode)
rJ sortedr rj r r r r r$ r r r r )
r" r r r rc kwargsr r funcZ saved_posfilemodestreamr r7 r r8 r sP %
z TarFile.openc K s |dkrt d| |||f|S )zCOpen uncompressed tar archive name for reading or writing.
r r )rJ )r" r r r r r7 r7 r8 r m s zTarFile.taropenr c K s |dkrt dzddlm} W n tk
r< tdY nX z|||d ||}W n. tk
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|_ |S ) zkOpen gzip compressed tar archive name for reading or writing.
Appending is not allowed.
rz r{ ri mode must be 'r', 'w' or 'x'r )GzipFilez gzip module is not availablerf Nrz r F)
rJ gzipr r r r r r r r )r" r r r
compresslevelr r r r7 r7 r8 gzopenu s0 zTarFile.gzopenc K s |dkrt dzddlm} W n tk
r< tdY nX ||pF|||d}z| j|||f|}W nF ttfk
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|S )
zlOpen bzip2 compressed tar archive name for reading or writing.
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r r r )BZ2Filer )r rz znot a bzip2 fileF) rJ r r r r r r EOFErrorr r r )r" r r r r r r r r7 r7 r8 bz2open s& zTarFile.bz2openc K s |dkrt dzddlm}m} W n tk
r@ tdY nX ||pJ|||d}z| j|||f|}W nF |tfk
r | |dkrt d Y n | Y nX d |_
|S )
zkOpen lzma compressed tar archive name for reading or writing.
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r r r )LZMAFiler r )presetrz znot an lzma fileF) rJ r r r r r r r r r r ) r" r r r r r r r r r7 r7 r8 xzopen s& zTarFile.xzopenr r r r )r r r r c C s | j r
dS d| _ z`| jdkrn| jttd | jtd 7 _t | jt
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| W 5 | js| j X dS )zlClose the TarFile. In write-mode, two finishing zero blocks are
appended to the archive.
NTr r$ r ) r r r r r r_ r2 r r r]
RECORDSIZE)r rd re r7 r7 r8 r s
z
TarFile.closec C s" | |}|dkr td| |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)
_getmemberKeyError)r r r r7 r7 r8 getmember s
zTarFile.getmemberc C s | | js| | jS )zReturn the members of the archive as a list of TarInfo objects. The
list has the same order as the members in the archive.
)_checkr _loadr r r7 r7 r8
getmembers s zTarFile.getmembersc C s dd | D S )zReturn 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 qS r7 r )rh r r7 r7 r8 rj s z$TarFile.getnames.<locals>.<listcomp>)r r r7 r7 r8 getnames s zTarFile.getnamesc C s^ | d |dk r|j}|dkr$|}tj|\}}|tjd}|d}| }| |_ |dkr| j
stt |}qt |}nt
| }d}|j}t |r|j|jf} | j
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r Y nX |
t t!fkrZt4tdrZt4tdrZt5|j6|_7t8|j6|_9|S ) a Create a TarInfo object from the result of os.stat or equivalent
on an existing file. The file is either named by `name', or
specified as a file object `fileobj' with a file descriptor. If
given, `arcname' specifies an alternative name for the file in the
archive, otherwise, the name is taken from the 'name' attribute of
'fileobj', or the 'name' argument. The name should be a text
string.
awxNr r r# r majorminor):r r r} r%
splitdriver seplstripr r r lstatstatfstatfilenost_modeS_ISREGst_inost_devst_nlinkr rv r S_ISDIRr S_ISFIFOr| S_ISLNKrt readlinkS_ISCHRrx S_ISBLKrz r st_uidr) st_gidr* st_sizer' st_mtimer( r r pwdgetpwuidr+ r grpgetgrgidr, r r st_rdevr r r ) r r arcnamer Zdrvr Zstatresr Zstmdinoder r7 r7 r8
gettarinfo s
zTarFile.gettarinfoT)r c C s | |dkr| }|D ]}|rtt|j td|jp>|j|jpH|jf | s`|
rztdd|j |j f ntd|j
tdt|jdd t|j| rdnd |r| rtd
|j | rtd |j t qdS ) 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 rn r r r r+ r) r, r* ry r{ r r r' r localtimer( r r? ru r rw rm )r verboser r r7 r7 r8 rf l s0
z TarFile.listfilterc C s6 | d |dkr|}| jdk rFtj|| jkrF| dd| dS | d| | ||}|dkrz| dd| dS |dk r||}|dkr| dd| dS | rt|d}| || W 5 Q R X n`|
r(| | |r2t t |D ]*}| j
tj||tj||||d qn
| | dS )
a! Add the file `name' to the archive. `name' may be any type of file
(directory, fifo, symbolic link, etc.). If given, `arcname'
specifies an alternative name for the file in the archive.
Directories are added recursively by default. This can be avoided by
setting `recursive' to False. `filter' is a function
that expects a TarInfo object argument and returns the changed
TarInfo object, if it returns None the TarInfo object will be
excluded from the archive.
r Nr$ ztarfile: Skipped %rr# z tarfile: Unsupported type %rztarfile: Excluded %rr r )r r r} r% r _dbgr rO r addfiler? r listdiraddr )r r r recursiver r fr7 r7 r8 r s8
z TarFile.addc C s | d t|}|| j| j| j}| j| | jt |7 _| j
}|dk rt || j|j |d t
|j t\}}|dkr| jtt| |d7 }| j|t 7 _| j| dS )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 N)rc r r# )r r r rS r5 r6 r r_ r r1 r r\ r' r] r r2 r r )r r r rX rc rd re r7 r7 r8 r s
zTarFile.addfile.
numeric_ownerc C s g }|dkr| }|D ]>}| r:|| t|}d|_| j||| |d q|jdd d | |D ]}tj ||j
}z,| j |||d | || |
|| W qp tk
r } z"| jdkrЂ n| dd | W 5 d}~X Y qpX qpdS )
a Extract all members from the archive to the current working
directory and set owner, modification time and permissions on
directories afterwards. `path' specifies a different directory
to extract to. `members' is optional and must be a subset of the
list returned by getmembers(). If `numeric_owner` is True, only
the numbers for user/group names are used and not the names.
N set_attrsr c S s | j S r r )r r7 r7 r8 <lambda> r z$TarFile.extractall.<locals>.<lambda>r r r# tarfile: %s)r? r r r extractsortreverser} r% r r chownutimechmodr
r r )r r% r r Z directoriesr dirpathr r7 r7 r8
extractall s.
zTarFile.extractallr c
C s | d t|tr | |}n|}| r>tj||j|_ z"| j
|tj||j ||d W n t k
r } zH| j
dkr n6|jdkr| dd|j n| dd|j|jf W 5 d}~X Y nB tk
r } z"| j
dkr n| dd| W 5 d}~X Y nX dS )a Extract a member from the archive to the current working directory,
using its full name. Its file information is extracted as accurately
as possible. `member' may be a filename or a TarInfo object. You can
specify a different directory using `path'. File attributes (owner,
mtime, mode) are set unless `set_attrs' is False. If `numeric_owner`
is True, only the numbers for user/group names are used and not
the names.
rz r r Nr# r ztarfile: %s %r)r r r r rw r} r% r r r _extract_memberr r r filenamer strerrorr
)r memberr% r r r r r7 r7 r8 r s*
(
zTarFile.extractc C s | d t|tr | |}n|}| s6|jtkrB| | |S | sR| rzt| j
t rht dq~|
| |S ndS dS )zExtract a member from the archive as a file object. `member' may be
a filename or a TarInfo object. If `member' is a regular file or a
link, an io.BufferedReader object is returned. Otherwise, None is
returned.
rz z'cannot extract (sym)link as file objectN)r r r r rO r rP
fileobjectrw ru r r r extractfile_find_link_target)r r r r7 r7 r8 r & s
zTarFile.extractfilec C sT | d}|dtj}tj|}|r>tj|s>t| | sN| rh|
dd|j |j f n|
d|j |
r| || n| r| || nx| r| || nb| s| r| || nD| s| r| || n&|jtkr| || n | || |rP| ||| | sP| || | || dS )z\Extract the TarInfo object tarinfo to a physical
file called targetpath.
r r# z%s -> %sN) r@ r r} r r% dirnamer makedirsrw ru r r r rO makefiler? makedirr} makefifory r{ makedevmakelinkr rP makeunknownr r r )r r
targetpathr r Z upperdirsr7 r7 r8 r E s4
zTarFile._extract_memberc C s* zt |d W n tk
r$ Y nX dS )z,Make a directory called targetpath.
r N)r} mkdirFileExistsErrorr r r r7 r7 r8 r v s zTarFile.makedirc C s | j }||j | j}t|db}|jdk rn|jD ]"\}}|| t|||t| q4||j | nt|||jt| W 5 Q R X dS )z'Make a file called targetpath.
r N)
r r r r r r r\ r r' truncate)r r r sourcerc targetr r' r7 r7 r8 r s
zTarFile.makefilec C s" | || | dd|j dS )zYMake a file from a TarInfo object with an unknown type
at targetpath.
r# z9tarfile: Unknown file type %r, extracted as regular file.N)r r r r
r7 r7 r8 r s zTarFile.makeunknownc C s" t tdrt| ntddS )z'Make a fifo called targetpath.
mkfifoz fifo not supported by systemN)r r} r r
r
r7 r7 r8 r s
zTarFile.makefifoc C s^ t tdrt tds td|j}| r6|tjO }n
|tjO }t||t |j
|j dS )z<Make a character or block device called targetpath.
mknodr z'special devices not supported by systemN) r r} r
r r{ r S_IFBLKS_IFCHRr r r r )r r r r r7 r7 r8 r s
zTarFile.makedevc C s zb| r0tj|r t| t|j| n0tj|jrNt |j| n|
| || W nH t k
r z|
| || W n t
k
r tdY nX Y nX dS )zMake 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)ru r} r% lexistsunlinksymlinkr r r linkr r symlink_exceptionr r
r
r7 r7 r8 r s"
zTarFile.makelinkc C s t tdrt dkr|j}|j}|sztr<t|jd }W n tk
rR Y nX zt rjt
|j d }W n tk
r Y nX z4| rt tdrt
||| nt||| W n tk
r tdY nX dS )zSet owner of targetpath according to tarinfo. If numeric_owner
is True, use .gid/.uid instead of .gname/.uname. If numeric_owner
is False, fall back to .gid/.uid when the search based on name
fails.
geteuidr r$ lchownzcould not change ownerN)r r} r r* r) r getgrnamr, r r getpwnamr+ ru r r r r
)r r r r gur7 r7 r8 r s( z
TarFile.chownc C s4 zt ||j W n tk
r. tdY nX dS )zASet file permissions of targetpath according to tarinfo.
zcould not change modeN)r} r r r r
r
r7 r7 r8 r s z
TarFile.chmodc C sH t tdsdS zt||j|jf W n tk
rB tdY nX dS )zBSet modification time of targetpath according to tarinfo.
r Nz"could not change modification time)r r} r r( r r
r
r7 r7 r8 r s
z
TarFile.utimec
C s | d | jdk r$| j}d| _|S | j| j krZ| j| jd | jdsZtdd}z| j | }W q t
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r } z6| j r| dd| j|f | jt
7 _W Y q^W 5 d}~X Y q tk
r6 } zR| j r| dd| j|f | jt
7 _W Y q^n| jdkr&tt|W 5 d}~X Y n tk
r^ | jdkrZtdY nj tk
r } z | jdkrtt|W 5 d}~X Y n0 tk
r } ztt|W 5 d}~X Y nX qq^|dk r| j| nd | _|S )
zReturn the next member of the archive as a TarInfo object, when
TarFile is opened for reading. Return None if there is no more
available.
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