֦i:c d Z ddlZddlZddlZddlZddlZddlZddlZddlZddl Z g dZ
d\ Z Z Z
ZZd\ ZZdZdZdZd Zd
ej, z Zd edddfd Zd
Z G d d Z G d de Z G d dej: Z G d dej> Z d Z!d Z" G d dejF Z$ d"de%de&fd Z'efdd d Z(d Z)d Z*e+d!k( r e* yy)#zFunctions that read and write gzipped files.
The user of the file doesn't have to worry about the compression,
but random access is not allowed. N) BadGzipFileGzipFileopencompress
decompress) )r r r i r
rbc d|v rd|v r5t d| | t d | t d | t d |j dd }t | t t t
j f rt | || }n2t | d s t | d
rt d||| }n t d d|v r-t j | }t j |||| S |S ) a Open a gzip-compressed file in binary or text mode.
The filename argument can be an actual filename (a str or bytes object), or
an existing file object to read from or write to.
The mode argument can be "r", "rb", "w", "wb", "x", "xb", "a" or "ab" for
binary mode, or "rt", "wt", "xt" or "at" for text mode. The default mode is
"rb", and the default compresslevel is 9.
For binary mode, this function is equivalent to the GzipFile constructor:
GzipFile(filename, mode, compresslevel). In this case, the encoding, errors
and newline arguments must not be provided.
For text mode, a GzipFile object is created, and wrapped in an
io.TextIOWrapper instance with the specified encoding, error handling
behavior, and line ending(s).
tbzInvalid mode: Nz0Argument 'encoding' not supported in binary modez.Argument 'errors' not supported in binary modez/Argument 'newline' not supported in binary mode readwritez1filename must be a str or bytes object, or a file)
ValueErrorreplace
isinstancestrbytesosPathLiker hasattr TypeErrorio
text_encoding
TextIOWrapper)filenamemode
compresslevelencodingerrorsnewlinegz_mode binary_files /usr/lib64/python3.12/gzip.pyr r s ( d{ $; 4 9: : OP P MN N NO Oll3#G(S% 56 x-@ 6 "gh&@ tWmXF KLL
d{##H- XvwGG c N | j t j d| y )Nz>$' ' :: ,::D JJ$ J<<TZZ0 0::D DJ<<&99>>$t||"3D"89:
:r+ c | j || _ n | xj t | z c_ y t | j | _ d| _ y r5 )r: r6 r7 r8 )r; r= s r* r= z_PaddedFile.prependj s? :: "DL JJ#g, &J 4<<(
r+ c T d | _ d | _ | j j | S r@ )r: r6 r9 seek)r; offs r* rD z_PaddedFile.seeks s#
yy~~c""r+ c yNT r; s r* seekablez_PaddedFile.seekablex r+ N)r+ ) __name__
__module__ __qualname____doc__r> r r= rD rJ rH r+ r* r3 r3 R s :#
r+ r3 c e Zd ZdZy)r z6Exception raised in some cases for invalid gzip files.N)rL rM rN rO rH r+ r* r r | s @r+ r c ( e Zd ZdZd Zd Zd Zd Zy)_WriteBufferStreamz8Minimal object to pass WriteBuffer flushes into GzipFilec 8 t j | | _ y r@ )weakrefref gzip_file)r; rV s r* r> z_WriteBufferStream.__init__ s Y/r+ c ^ | j }| t d |j | S )Nzlost gzip_file)rV RuntimeError
_write_raw)r; datarV s r* r z_WriteBufferStream.write s1 NN$ /0 0##D))r+ c y)NFrH rI s r* rJ z_WriteBufferStream.seekable s r+ c yrG rH rI s r* writablez_WriteBufferStream.writable rK r+ N)rL rM rN rO r> r rJ r] rH r+ r* rR rR s B0* r+ rR c e Zd ZdZdZddeddfdZed Zd Z d Z
fdZ d Z d Z
d
Zdd Zdd Zd
Zed Zd Zd Zej, fdZd Zd Zd Zd Zd Z e j< fdZ ddZ xZ!S )r a
The GzipFile class simulates most of the methods of a file object with
the exception of the truncate() method.
This class only supports opening files in binary mode. If you need to open a
compressed file in text mode, use the gzip.open() function.
Nc : |r"d|v sd|v rt dj | |r d|vr|dz
} |!t j ||xs d x}| _ |&t |dd }t
|t t f sd}nt j | }|}|
t |d d }|j d
r8t | _
t | }t j | | _ || _ n|j d r|d dl}|j) d
t* d t, | _
| j/ | t1 j2 |t0 j4 t0 j6 t0 j8 d | _ || _ t> | _ t jB tE | | j@ | _ nt dj | || _# | j t, k( r| jI | yy# | jK xY w)aG Constructor for the GzipFile class.
At least one of fileobj and filename must be given a
non-trivial value.
The new class instance is based on fileobj, which can be a regular
file, an io.BytesIO object, or any other object which simulates a file.
It defaults to None, in which case filename is opened to provide
a file object.
When fileobj is not None, the filename argument is only used to be
included in the gzip file header, which may include the original
filename of the uncompressed file. It defaults to the filename of
fileobj, if discernible; otherwise, it defaults to the empty string,
and in this case the original filename is not included in the header.
The mode argument can be any of 'r', 'rb', 'a', 'ab', 'w', 'wb', 'x', or
'xb' depending on whether the file will be read or written. The default
is the mode of fileobj if discernible; otherwise, the default is 'rb'.
A mode of 'r' is equivalent to one of 'rb', and similarly for 'w' and
'wb', 'a' and 'ab', and 'x' and 'xb'.
The compresslevel argument is an integer from 0 to 9 controlling the
level of compression; 1 is fastest and produces the least compression,
and 9 is slowest and produces the most compression. 0 is no compression
at all. The default is 9.
The mtime argument is an optional numeric timestamp to be written
to the last modification time field in the stream when compressing.
If omitted or None, the current time is used.
r UzInvalid mode: {!r}r Nr namer r# r)waxr zGzipFile was opened for writing, but this will change in future Python releases. Specify the mode argument for opening it for writing.r ) buffer_size)&r formatbuiltinsr myfileobjgetattrr r r r fspath
startswithREADr# _GzipReaderr BufferedReaderr6 ra warningswarn
FutureWarningWRITE _init_writezlib compressobjDEFLATED MAX_WBITS
DEF_MEM_LEVELr _write_mtime_WRITE_BUFFER_SIZE _buffer_sizeBufferedWriterrR fileobj_write_gzip_header_close) r; r" r# r$ r~ mtimeorigmoderawrp s r* r> zGzipFile.__init__ s F SD[C4K 1 8 8 >? ? CtO CKD2 +3==4<4+PP$. "7FB7!(S%L9 !H 99X.H| w5 s# !'* ! 0 0 5 $ 1## MMP &q *
" * $ 0 0 15 26.. 151C1C12 !4
%*!$6! ! 0 01CD1I=A=N=N P !!5!)reprr~ hexid)r; ss r* __repr__zGzipFile.__repr__ s8 !Ab'!C'#bh-7#==r+ c ~ || _ t j d | _ d| _ g | _ d| _ d| _ y Nr+ r )ra ru crc32crcrA writebufbufsizeoffset)r; r" s r* rt zGzipFile._init_write s4 ::c?
r+ c t | j | j j t | S r@ )_check_not_closedr6 flushsupertellr; __class__s r* r z
GzipFile.tell s+ w|~ r+ c 2 | j j d | j j d t j j | j
}t
|t s|j d }|j d r|d d }d}|rt }| j j t | j d | j }|t j }t | j t! | |t" k( rd}n|t$ k( rd }nd
}| j j | | j j d |r | j j |d
z y y # t $ r d}Y w xY w) N zlatin-1s .gzr+ r )r~ r r pathbasenamera r r encodeendswithUnicodeEncodeErrorFNAMEchrrz timer1 int_COMPRESS_LEVEL_BEST_COMPRESS_LEVEL_FAST)r; r$ fnameflagsr xfls r* r zGzipFile._write_gzip_header sJ ;' 7# GG$$TYY/E eU+ Y/~~f% cr
E 3u:,,Y78!! =IIKE s5z* 0 0C
2
2CC 3 7# LL uw / % " E s A F FFc | j | j t k7 rdd l}t |j
d | j t d | j j | S )Nr z$write() on read-only GzipFile objectz!write() on closed GzipFile object)
r r# rs errnoOSErrorEBADFr~ r r6 r )r; rZ r s r* r zGzipFile.write1 sZ 99 %++'MN N << @A A||!!$''r+ c t |t t f r t | }nt | }|j
}|dkD r| j j | j j | | xj |z
c_ t j || j | _ | xj |z
c_
|S r5 )r r bytearrayr7
memoryviewnbytesr~ r r rA ru r r r )r; rZ lengths r* rY zGzipFile._write_raw< s dUI . /YF d#D[[F A: LL t}} 5 5d ; < II Izz$1DH KK6 !K
r+ c | j | j t k7 rdd l}t |j
d | j j | S )Nr z$read() on write-only GzipFile object)r r# rm r r r r6 r r; rA r s r* r z
GzipFile.readM sD 99 %++'MN N|| &&r+ c | j | j t k7 rddl}t |j
d |dk rt j }| j j | S )zdImplements BufferedIOBase.read1()
Reads up to a buffer's worth of data if size is negative.r Nz%read1() on write-only GzipFile object)
r r# rm r r r r DEFAULT_BUFFER_SIZEr6 read1r s r* r zGzipFile.read1T sX
99 %++'NO O !8))D||!!$''r+ c | j | j t k7 rdd l}t |j
d | j j | S )Nr z$peek() on write-only GzipFile object)r r# rm r r r r6 peek)r; nr s r* r z
GzipFile.peeka sD 99 %++'MN N|| ##r+ c | j d u S r@ )r~ rI s r* closedzGzipFile.closedh s ||t##r+ c | j }|y | j t k( rs| j j |j | j j t || j t || j dz n-| j t k( r| j j | j y # | j w xY w)N )
r~ r# rs r6 r r r r1 r rA rm closer )r; r~ s r* r zGzipFile.closel s ,, ?
yyE! ""$
dmm 1 1 34$((+$))j"89d" ""$ KKMDKKMs B3C C'c ^ d | _ | j }|d | _ |j y y r@ )r~ ri r )r; ri s r* r zGzipFile._close| s. NN !DN OO !r+ c | j | j t k( ri| j j | j
j
| j j | | j
j y y r@ )r r# rs r6 r r~ r r )r; zlib_modes r* r zGzipFile.flush s` 99 LL LL t}} 2 29 = > LL r+ c 6 | j j S )zInvoke the underlying file object's fileno() method.
This will raise AttributeError if the underlying file object
doesn't support fileno().
)r~ filenorI s r* r zGzipFile.fileno s ||""$$r+ c v | j t k7 r t d | j j d y)z[Return the uncompressed stream file position indicator to the
beginning of the filezCan't rewind in write moder N)r# rm r r6 rD rI s r* rewindzGzipFile.rewind s. 99 67 7 ! r+ c ( | j t k( S r@ )r# rm rI s r* readablezGzipFile.readable s yyD r+ c ( | j t k( S r@ )r# rs rI s r* r] zGzipFile.writable s yyE!!r+ c yrG rH rI s r* rJ zGzipFile.seekable rK r+ c | j t k( r| j | j j |t
j k7 r.|t
j k( r| j |z }n t d || j k r t d || j z
}d| j z }t || j z D ] }| j | | j d|| j z z | j S | j t k( r,| j | j j || S | j S )NzSeek from end not supportedzNegative seek in write moder )r# rs r r6 r r SEEK_SETSEEK_CURr r r r| ranger rm rD )r; r whencecountchunkis r* rD z
GzipFile.seek s 99 " " $ LL $R[[( ![[6 1F$%BCC # ;<<T[[(ED - --E5D$5$556
5! 7 JJu(9(9 9: ;
{{ YY$
" " $<<$$VV4 4{{r+ c X | j | j j | S r@ )r r6 readline)r; rA s r* r zGzipFile.readline s# ||$$T**r+ r )"rL rM rN rO ri r r> propertyr r rt r r r rY r r r r r r ru Z_SYNC_FLUSHr r r r r] rJ r r rD r
__classcell__r s @r* r r s I $4 3TZx , ,>
0@ ("' ($ $ $ " . . !% !" #%++ .+r+ r c | j | }t | |k r>| j |t | z
}|s t d ||z
}t | |k r>|S )z}Read exactly *n* bytes from `fp`
This method is required because fp may be unbuffered,
i.e. return short reads.
ACompressed file ended before the end-of-stream marker was reached)r r7 EOFError)fpr rZ r s r* _read_exactr sd 771:D
d)a- GGAD M " > ?
? d)a- Kr+ c | j d }|dk( ry|dk7 rt d|z t j dt | d \ }}}|dk7 r t d |t
z r.t j d t | d \ }t | | |t z r | j d
}|r|d k( rn|t z r | j d
}|r|d k( rn|t z r t | d |S ) zRead a gzip header from `fp` and progress to the end of the header.
Returns last mtime if header was present or None otherwise.
r r+ Nr zNot a gzipped file (%r)z r3 ru _ZlibDecompressorrx _new_memberr )r; r r s r* r> z_GzipReader.__init__ s>
R $*@*@ $ 0 r+ c F t j d | _ d| _ y r )ru r _crc _stream_sizerI s r*
_init_readz_GzipReader._init_read s JJsO r+ c B t | j }|y|| _ y)NFT)r _fpr )r; r s r* r z _GzipReader._read_gzip_header s$ &txx0
%r+ c |dk r| j S |sy | j j r8| j d| _ | j
di | j | _ | j r9| j | j s| j | _
yd| _ | j j r<| j j t }| j j || }n | j j d| }| j j dk7 r/| j j# | j j |dk7 rndk( r t% d at' j( || j* | _ | xj, t/ | z
c_ | xj t/ | z
c_ |S )Nr r+ TFr rH )readall
_decompressoreof _read_eofr _decomp_factory _decomp_argsr r _pos_size needs_inputr r READ_BUFFER_SIZEr unused_datar= r ru r r r r7 )r; rA buf
uncompresss r* r z_GzipReader.read s !8<<> !
!!%%
#' %9T%9%9 &)''&)" !--/!%DJ #( !!--hhmm$45 ! / / : :3 E
! / / : :3 E
!!--4 !3!3!?!?@S cz B C CG L JJz4995 S_, S_$ r+ c t j dt | j d \ }}|| j k7 r-t dt
| dt
| j || j dz k7 r t d d}|dk( r!| j j d }|dk( r!|r | j j | y y ) N r r r r r r r s @r* rn rn s' 3j * r+ rn r$ returnc
|t j }| t k( rd}n| t k( rd}nd}t j dddddt | |d S ) a
Write a simple gzip header with no extra fields.
:param compresslevel: Compresslevel used to determine the xfl bytes.
:param mtime: The mtime (must support conversion to a 32-bit integer).
:return: A bytes object representing the gzip header.
r r
r z>"1+=> V $**\* * 01 1 c,'*4 5 AB B ##L1~~ab!((1# r+ c ddl m} | d }|j }|j ddd |j d dd
|j d d dd
|j dddgd |j }t
}|j rt }n|j rt }|j D ] }|j r|dk( rAt ddt j j }t j j }n|dd dk7 rt j" d| t% |d }t' j$ |d d d }nl|dk( rBt j j }t ddt j j | }n%t' j$ |d }t% |dz d } |j) t* }|sn|j- | *|t j j ur|j/ |t j j us}|j/ y )Nr )ArgumentParserzeA simple command line interface for the gzip module: act like gzip, but do not delete the input file.) descriptionz--fast
store_truezcompress faster)actionhelpz--bestzcompress betterz-dz --decompressz act like gunzip instead of gzipargs*-r9 )nargsdefaultmetavarr r )r" r# r~ r z.gzz filename doesn't end in .gz: wb)r" r# r~ r$ )argparser( add_mutually_exclusive_group add_argument
parse_args_COMPRESS_LEVEL_TRADEOFFfastr bestr r- r r sysstdinbufferstdoutexitr rh r r r r ) r( parsergroupr- r$ argr< gr s r* mainrD s '
,-F
/ / 1E x ;LM x ;LM t^L > @ cC5&I D,M yy,
,
yy ??cz btSYY=M=MNJJ%%rs8u$HH rL s2 %
G(6 %ufeX e /// ,@tT+Z+
' 'TA' A $j+|&& j+Z
"J_ ,// _ F (,Kc K05K* "6 $22.` zF r+