Information System : Linux apprendre2 3.10.0-1160.119.1.el7.x86_64 #1 SMP Tue Jun 4 14:43:51 UTC 2024 x86_64
Disable Function : NONE
3
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Z%d9d: Z&d;d< Z'ej(ejej)ej*hej+ko~ej,ej-ko~ejej.kZ/dd=dZ0e/e0_1d>d? Z2e#fd@dZ3dAdB Z4dCdD Z5dEdF Z6ddHdIZ7ddJdKZ8dLe7dgdNfiZ9ere7dgdOfe9dP< e8g dQfe9dR< e re7dgdTfe9dU< e
r0e7dgdWfe9dX< dYd Z:dd[dZ;d\d Zd_d` Z?ddadZ@dbd ZAdcdd ZBdedf ZCdgdh ZDdigeDg dNfdjgeCg dQfdkZEerdldmgeDg dOfeEdP< e rdndogeDg dTfeEdU< e
rdpdqgeDg dWfeEdX< drds ZFddtdZGe edurPejHdv ejIdwdxZJdyeJjK_ dzeJjL_ d{eJjM_ d|dv ZNn2ejOd}krddlPZPejHdv ejIdwdxZJd~dv ZNddd ZQddd ZRejSejTB dfdd ZUdS )zUtility functions for copying and archiving files and directory trees.
XXX The functions here don't copy the resource fork or other metadata on Mac.
NTF)getpwnam)getgrnam copyfileobjcopyfilecopymodecopystatcopycopy2copytreemovermtreeErrorSpecialFileError ExecError make_archiveget_archive_formatsregister_archive_formatunregister_archive_formatget_unpack_formatsregister_unpack_formatunregister_unpack_formatunpack_archiveignore_patternschownwhichget_terminal_size
SameFileErrorc @ s e Zd ZdS )r
N)__name__
__module__ __qualname__ r r /usr/lib64/python3.6/shutil.pyr
7 s c @ s e Zd ZdZdS )r z5Raised when source and destination are the same file.N)r r r __doc__r r r r! r : s c @ s e Zd ZdZdS )r z|Raised when trying to do a kind of operation (e.g. copying) which is
not supported on a special file (e.g. a named pipe)N)r r r r" r r r r! r = s c @ s e Zd ZdZdS )r z+Raised when a command could not be executedN)r r r r" r r r r! r A s c @ s e Zd ZdZdS ) ReadErrorz%Raised when an archive cannot be readN)r r r r" r r r r! r# D s r# c @ s e Zd ZdZdS )
RegistryErrorzVRaised when a registry operation with the archiving
and unpacking registries failsN)r r r r" r r r r! r$ G s r$ i c C s$ x | j |}|sP |j| qW dS )z=copy data from file-like object fsrc to file-like object fdstN)readwrite)fsrcfdstZlengthZbufr r r! r L s
c C sX t tjdr0ytjj| |S tk
r. dS X tjjtjj| tjjtjj|kS )NsamefileF)hasattrospathr* OSErrornormcaseabspath)srcdstr r r! _samefileT s r3 )follow_symlinksc C s t | |rtdj| |xL| |gD ]@}ytj|}W n tk
rJ Y q$X tj|jr$td| q$W | rtj j
| rtj tj | | n6t
| d&}t
|d}t|| W dQ R X W dQ R X |S )zCopy data from src to dst.
If follow_symlinks is not set and src is a symbolic link, a new
symlink will be created instead of copying the file it points to.
z {!r} and {!r} are the same filez`%s` is a named piperbwbN)r3 r formatr, statr. S_ISFIFOst_moder r- islinksymlinkreadlinkopenr )r1 r2 r4 fnstr( r) r r r! r ` s
c C sz | r>t jj| r>t jj|r>tt dr8t jt j }}q\dS n tt drXt jt j }}ndS || }||tj|j dS )zCopy mode bits from src to dst.
If follow_symlinks is not set, symlinks aren't followed if and only
if both `src` and `dst` are symlinks. If `lchmod` isn't available
(e.g. Linux) this method does nothing.
lchmodNchmod)
r, r- r; r+ lstatrA r8 rB S_IMODEr: )r1 r2 r4 Z stat_funcZ
chmod_funcr@ r r r! r } s
listxattrc C s yt j| |d}W n4 tk
rF } z|jtjtjfkr8 dS d}~X nX xn|D ]f}y&t j| ||d}t j||||d W qN tk
r } z |jtjtjtjfkr W Y dd}~X qNX qNW dS )zCopy extended filesystem attributes from `src` to `dst`.
Overwrite existing attributes.
If `follow_symlinks` is false, symlinks won't be followed.
)r4 N) r, rE r. errnoENOTSUPZENODATAgetxattrsetxattrZEPERM)r1 r2 r4 namesenamevaluer r r!
_copyxattr s
rN c O s d S )Nr )argskwargsr r r! rN s c s6 ddddd |p,t jj| o*t jj| }|r@ fdd}n fdd}|d| |d }tj|j}|d
||j|jf|d y|d |||d W n tk
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|d W nP t k
r" } z2x*dD ] }t t |r|j t
t |krP qW W Y dd}~X nX t| ||d dS )a Copy file metadata
Copy the permission bits, last access time, last modification time, and
flags from `src` to `dst`. On Linux, copystat() also copies the "extended
attributes" where possible. The file contents, owner, and group are
unaffected. `src` and `dst` are path names given as strings.
If the optional flag `follow_symlinks` is not set, symlinks aren't
followed if and only if both `src` and `dst` are symlinks.
N)nsr4 c W s d S )Nr )rQ r4 rO r r r! _nop s zcopystat.._nopc s t t| S )N)getattrr, )rL )rR r r! lookup s zcopystat..lookupc s t t| }|tjkr|S S )N)rS r, supports_follow_symlinks)rL r? )rR r r! rT s
r8 )r4 utimerB st_flagsZchflags
EOPNOTSUPPrG )rX rG )r, r- r; r8 rD r: st_atime_ns st_mtime_nsNotImplementedErrorr+ rW r. rF rS rN ) r1 r2 r4 ZfollowrT r@ modewhyerrr )rR r! r s,
c C sB t jj|r"t jj|t jj| }t| ||d t| ||d |S )a3 Copy data and mode bits ("cp src dst"). Return the file's destination.
The destination may be a directory.
If follow_symlinks is false, symlinks won't be followed. This
resembles GNU's "cp -P src dst".
If source and destination are the same file, a SameFileError will be
raised.
)r4 )r, r- isdirjoinbasenamer r )r1 r2 r4 r r r! r s
c C sB t jj|r"t jj|t jj| }t| ||d t| ||d |S )a1 Copy data and metadata. Return the file's destination.
Metadata is copied with copystat(). Please see the copystat function
for more information.
The destination may be a directory.
If follow_symlinks is false, symlinks won't be followed. This
resembles GNU's "cp -P src dst".
)r4 )r, r- r_ r` ra r r )r1 r2 r4 r r r! r s
c s fdd}|S )zFunction that can be used as copytree() ignore parameter.
Patterns is a sequence of glob-style patterns
that are used to exclude filesc s, g }x D ]}|j tj|| q
W t|S )N)extendfnmatchfilterset)r- rJ
ignored_namespattern)patternsr r! _ignore_patterns s
z)ignore_patterns.._ignore_patternsr )rh ri r )rh r! r s c C s t j| }|dk r || |}nt }t j| g }xB|D ]8} | |krJq:t jj| | }
t jj|| } yt jj|
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} |rt j| | t |
| | d n ignored_names
Since copytree() is called recursively, the callable will be
called once for each directory that is copied. It returns a
list of names relative to the `src` directory that should
not be copied.
The optional copy_function argument is a callable that will be used
to copy each file. It will be called with the source path and the
destination path as arguments. By default, copy2() is used, but any
function that supports the same signature (like copy()) can be used.
N)r4 r Zwinerror)r, listdirre makedirsr- r` r; r= r< r existsr_ r
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rF |t j| tj Y nX d S )Nz%Cannot call rmtree on a symbolic linkr )r, r- r; r. sysexc_inforj r` rC r: r8 S_ISDIR_rmtree_unsafeunlinkrmdir)r- onerrorrJ rL fullnamer\ r r r! rw q s6
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r |t j|tj Y qVX qVW d S )NF)dir_fdr4 r )r| z%Cannot call rmtree on a symbolic link)r, rj r. filenamert ru r- r` r8 r: rv r> O_RDONLYsamestatfstat_rmtree_safe_fdry r; closerx )
topfdr- rz rJ r^ rL r{ orig_str\ dirfdr r r! r sD $
r c ! C s^ |rdd }n|dkr dd }t rPt| tr8tj| } ytj| }W n& tk
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|rt|| | ytj| W n( tk
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r< |tj j| tj Y nX W dtj| X n
t| |S dS )a Recursively delete a directory tree.
If ignore_errors is set, errors are ignored; otherwise, if onerror
is set, it is called to handle the error with arguments (func,
path, exc_info) where func is platform and implementation dependent;
path is the argument to that function that caused it to fail; and
exc_info is a tuple returned by sys.exc_info(). If ignore_errors
is false and onerror is None, an exception is raised.
c W s d S )Nr )rO r r r! rz s zrmtree..onerrorNc W s d S )Nr )rO r r r! rz s z%Cannot call rmtree on a symbolic link)_use_fd_functions
isinstancebytesr, fsdecoderC Exceptionrt ru r> r~ r- r r r ry r. r; r rw )r-
ignore_errorsrz r fdr r r! r s<
c C s& t jjt jjpd }t jj| j|S )N )r, r- sepaltsepra rstrip)r- r r r r! _basename s r c C s |}t jj|rTt| |r*t j| | dS t jj|t| }t jj|rTtd| yt j| | W n t k
r t jj
| rt j | }t j || t j
| nTt jj| rt| |rtd| |f t| ||dd t| n|| | t j
| Y nX |S )a+ Recursively move a file or directory to another location. This is
similar to the Unix "mv" command. Return the file or directory's
destination.
If the destination is a directory or a symlink to a directory, the source
is moved inside the directory. The destination path must not already
exist.
If the destination already exists but is not a directory, it may be
overwritten depending on os.rename() semantics.
If the destination is on our current filesystem, then rename() is used.
Otherwise, src is copied to the destination and then removed. Symlinks are
recreated under the new name if os.rename() fails because of cross
filesystem renames.
The optional `copy_function` argument is a callable that will be used
to copy the source or it will be delegated to `copytree`.
By default, copy2() is used, but any function that supports the same
signature (like copy()) can be used.
A lot more could be done here... A look at a mv.c shows a lot of
the issues this implementation glosses over.
Nz$Destination path '%s' already existsz.Cannot move a directory '%s' into itself '%s'.T)rq ro )r, r- r_ r3 renamer` r rl r
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c C sV t jj| } t jj|}| jt jjs2| t jj7 } |jt jjsL|t jj7 }|j| S )N)r, r- r0 endswithr
startswith)r1 r2 r r r! r 8 s r c C sN t dks| dkrdS y t | }W n tk
r8 d}Y nX |dk rJ|d S dS )z"Returns a gid, given a group name.N )r KeyError)rL resultr r r! _get_gidA s
r c C sN t dks| dkrdS y t | }W n tk
r8 d}Y nX |dk rJ|d S dS )z"Returns an uid, given a user name.Nr )r r )rL r r r r! _get_uidM s
r gzipc
s" |dkrd}nDt r |dkr d}n2tr2|dkr2d}n trD|dkrDd}ntdj|d dl} |rfd
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|s | j| d| }z|j||
d W d|j X | S )a Create a (possibly compressed) tar file from all the files under
'base_dir'.
'compress' must be "gzip" (the default), "bzip2", "xz", or None.
'owner' and 'group' can be used to define an owner and a group for the
archive that is being built. If not provided, the current owner and group
will be used.
The output tar file will be named 'base_name' + ".tar", possibly plus
the appropriate compression extension (".gz", ".bz2", or ".xz").
Returns the output filename.
Nr r Zgzbzip2bz2xzzCbad value for 'compress', or compression format not supported : {0}r .z.tarz creating %szCreating tar archivec s, d k r | _ | _d k r(| _| _| S )N)gidZgnameuiduname)Ztarinfo)r groupownerr r r! _set_uid_gid s z#_make_tarball.._set_uid_gidzw|%s)rd )_ZLIB_SUPPORTED_BZ2_SUPPORTED_LZMA_SUPPORTED
ValueErrorr7 tarfiler, r- dirnamerl infork r r r> addr ) base_namebase_dircompressverbosedry_runr r loggerZtar_compressionr Z compress_extZ archive_name archive_dirr tarr )r r r r r!
_make_tarballY s<
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} tjj| r|j | | |dk r|jd| qW qW W dQ R X |S ) zCreate a zip file from all the files under 'base_dir'.
The output zip file will be named 'base_name' + ".zip". Returns the
name of the output zip file.
r Nz.zipz creating %sz#creating '%s' and adding '%s' to itw)Z compressionz adding '%s')zipfiler, r- r rl r rk ZipFileZ ZIP_DEFLATEDnormpathcurdirr' walksortedr` isfile)r r r r r r Z zip_filenamer Zzfr- dirpathZdirnames filenamesrL r r r!
_make_zipfile s@
r r r zuncompressed tar filezgzip'ed tar-fileZgztarzZIP filezipr zbzip2'ed tar-fileZbztarr zxz'ed tar-fileZxztarc C s dd t j D } | j | S )zReturns a list of supported formats for archiving and unarchiving.
Each element of the returned sequence is a tuple (name, description)
c S s g | ]\}}||d fqS )r r ).0rL registryr r r!
s z'get_archive_formats..)_ARCHIVE_FORMATSitemssort)formatsr r r! r s r c C sz |dkr g }t |s td| t|ttfs6tdx0|D ](}t|ttf s\t|dkr|dk r$|jd| t jj| } |s>t j| |dkrLt j}||d}
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}W d|dk r|dk r|jd
| t j| X |S ) a Create an archive file (eg. zip or tar).
'base_name' is the name of the file to create, minus any format-specific
extension; 'format' is the archive format: one of "zip", "tar", "gztar",
"bztar", or "xztar". Or any other registered format.
'root_dir' is a directory that will be the root directory of the
archive; ie. we typically chdir into 'root_dir' before creating the
archive. 'base_dir' is the directory where we start archiving from;
ie. 'base_dir' will be the common prefix of all files and
directories in the archive. 'root_dir' and 'base_dir' both default
to the current directory. Returns the name of the archive file.
'owner' and 'group' are used when creating a tar archive. By default,
uses the current owner and group.
Nzchanging into '%s')r r zunknown archive format '%s'r r r r zchanging back to '%s')
r, getcwddebugr- r0 chdirr r r r )r r7 Zroot_dirr r r r r r Zsave_cwdrP format_infofuncargvalr} r r r! r s6
c C s dd t j D } | j | S )zReturns a list of supported formats for unpacking.
Each element of the returned sequence is a tuple
(name, extensions, description)
c S s" g | ]\}}||d |d fqS )r r )r rL r r r r! r 6 s z&get_unpack_formats..)_UNPACK_FORMATSr r )r r r r! r 0 s c C sv i }x.t j D ]"\}}x|d D ] }|||< q W qW x,| D ]$}||kr:d}t|||| f q:W t|srtddS )z+Checks what gets registered as an unpacker.r z!%s is already registered for "%s"z*The registered function must be a callableN)r r r$ r r )
extensionsr r Zexisting_extensionsrL r ext extensionmsgr r r! _check_unpack_options; s
r c C s, |dkr g }t ||| ||||ft| < dS )aM Registers an unpack format.
`name` is the name of the format. `extensions` is a list of extensions
corresponding to the format.
`function` is the callable that will be
used to unpack archives. The callable will receive archives to unpack.
If it's unable to handle an archive, it needs to raise a ReadError
exception.
If provided, `extra_args` is a sequence of
(name, value) tuples that will be passed as arguments to the callable.
description can be provided to describe the format, and will be returned
by the get_unpack_formats() function.
N)r r )rL r r r r r r r! r M s c C s
t | = dS )z*Removes the pack format from the registry.N)r )rL r r r! r c s c C s& t jj| }t jj|s"t j| dS )z1Ensure that the parent directory of `path` existsN)r, r- r r_ rk )r- r r r r! _ensure_directoryg s r c C s ddl }|j| s td| |j| }zx|j D ]}|j}|jds4d|krRq4tjj |f|j
d }|spq4t | |j ds4|j
|j}t|d}z|j| W d|j ~X q4W W d|j X dS )z+Unpack zip `filename` to `extract_dir`
r Nz%s is not a zip file/z..r6 )r Z
is_zipfiler# r Zinfolistr} r r, r- r` splitr r r& r> r' r ) r} extract_dirr r r rL targetdatafr r r! _unpack_zipfilem s*
r c C sX ddl }y|j| }W n" |jk
r8 td| Y nX z|j| W d|j X dS )zAUnpack tar/tar.gz/tar.bz2/tar.xz `filename` to `extract_dir`
r Nz/%s is not a compressed or uncompressed tar file)r r> ZTarErrorr# Z
extractallr )r} r r Ztarobjr r r! _unpack_tarfile s r z.tarz.zip)r r z.tar.gzz.tgzz.tar.bz2z.tbz2z.tar.xzz.txzc C s: x4t j D ](\}}x |d D ]}| j|r |S q W q
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r c
C s |dkrt j }|dk rhy t| }W n" tk
rF tdj|Y nX |d }|| |ft|d nHt| }|dkrtdj| t| d }tt| d }|| |f| dS )a
Unpack an archive.
`filename` is the name of the archive.
`extract_dir` is the name of the target directory, where the archive
is unpacked. If not provided, the current working directory is used.
`format` is the archive format: one of "zip", "tar", "gztar", "bztar",
or "xztar". Or any other registered format. If not provided,
unpack_archive will use the filename extension and see if an unpacker
was registered for that extension.
In case none is found, a ValueError is raised.
NzUnknown unpack format '{0}'r r z Unknown archive format '{0}') r, r r r r r7 dictr r# )r} r r7 r r rP r r r! r s statvfs
disk_usageZusageztotal used freezTotal space in byteszUsed space in byteszFree space in bytesc C s@ t j| }|j|j }|j|j }|j|j |j }t|||S )zReturn disk usage statistics about the given path.
Returned value is a named tuple with attributes 'total', 'used' and
'free', which are the amount of total, used and free space, in bytes.
)r, r f_bavailf_frsizef_blocksf_bfree_ntuple_diskusage)r- r@ freetotalusedr r r! r s
ntc C s" t j| \}}|| }t|||S )zReturn disk usage statistics about the given path.
Returned values is a named tuple with attributes 'total', 'used' and
'free', which are the amount of total, used and free space, in bytes.
)r Z
_getdiskusager )r- r r r r r r! r s c C s |dkr|dkrt d|}|}|dkr.d}n(t|trVt|}|dkrVtdj||dkrdd}n(t|tst|}|dkrtdj|tj | || dS )zChange owner user and group of the given path.
user and group can be the uid/gid or the user/group names, and in that case,
they are converted to their respective uid/gid.
Nz user and/or group must be setr zno such user: {!r}zno such group: {!r}r )
r r rn r LookupErrorr7 intr r, r )r- userr Z_userZ_groupr r r! r s"
P c C s yt tjd }W n ttfk
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r^ d}Y nX |dksp|dkrytjtjj }W n$ t tt
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r tj | }Y nX |dkr|j }|dkr|j
}tj ||fS )a Get the size of the terminal window.
For each of the two dimensions, the environment variable, COLUMNS
and LINES respectively, is checked. If the variable is defined and
the value is a positive integer, it is used.
When COLUMNS or LINES is not defined, which is the common case,
the terminal connected to sys.__stdout__ is queried
by invoking os.get_terminal_size.
If the terminal size cannot be successfully queried, either because
the system doesn't support querying, or because we are not
connected to a terminal, the value given in fallback parameter
is used. Fallback defaults to (80, 24) which is the default
size used by many terminal emulators.
The value returned is a named tuple of type os.terminal_size.
ZCOLUMNSr ZLINES)r r, environr r r rt
__stdout__filenoAttributeErrorr.
terminal_sizecolumnslines)Zfallbackr r sizer r r! r s$
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a3 Given a command, mode, and a PATH string, return the path which
conforms to the given mode on the PATH, or None if there is no such
file.
`mode` defaults to os.F_OK | os.X_OK. `path` defaults to the result
of os.environ.get("PATH"), or can be overridden with a custom search
path.
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