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XXX The functions here don't copy the resource fork or other metadata on Mac.
� NTF)�getpwnam)�getgrnam� copyfileobj�copyfile�copymode�copystat�copy�copy2�copytree�move�rmtree�Error�SpecialFileError� ExecError� make_archive�get_archive_formats�register_archive_format�unregister_archive_format�get_unpack_formats�register_unpack_format�unregister_unpack_format�unpack_archive�ignore_patterns�chown�which�get_terminal_size�
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7 s c @ s e Z d Z d Z d S)r z5Raised when source and destination are the same file.N)r r r �__doc__r r r r! r : s c @ s e Z d Z d Z d S)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 Z d Z d Z d S)r z+Raised when a command could not be executedN)r r r r" r r r r! r A s c @ s e Z d Z d Z d S)� ReadErrorz%Raised when an archive cannot be readN)r r r r" r r r r! r# D s r# c @ s e Z d Z d Z d S)�
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rA d SYn Xt j j t j j | � � t j j t j j | � � k S)N�samefileF)�hasattr�os�pathr* �OSError�normcase�abspath)�src�dstr r r! � _samefileT s
r3 �follow_symlinksc C s t | | � r' t d j | | � � � x^ | | g D]P } y t j | � } Wn t k
ra Yq4 Xt j | j � r4 t d | � � q4 W| r� t j j
| � r� t j t j | � | � n? t
| d � �- } t
| d � � } t | | � Wd QRXWd QRX| S)z�Copy data from src to dst.
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z {!r} and {!r} are the same filez`%s` is a named pipe�rb�wbN)r3 r �formatr, �statr. �S_ISFIFO�st_moder r- �islink�symlink�readlink�openr )r1 r2 r4 �fn�str( r) r r r! r ` s
c C s� | rW t j j | � rW t j j | � rW t t d � rP t j t j } } q� d Sn) t t d � r| t j t j } } n d S| | � } | | t j | j � � d S)z�Copy 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
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�lchmodN�chmod)
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� y t j | d | �} WnG t k
rb } z' | j t j t j f k rL � d SWYd d } ~ Xn Xx� | D]� } y5 t j | | d | �} t j | | | d | �Wqj t k
r� } z) | j t j t j t j f k r� � WYd d } ~ Xqj Xqj Wd S)z�Copy 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. �errno�ENOTSUPZENODATA�getxattr�setxattrZEPERM)r1 r2 r4 �names�e�name�valuer r r! �
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!rN c O s d S)Nr )�args�kwargsr r r! rN � s c s� d d d d d d � � | p@ t j j | � o? t j j | � } | r^ � f d d � } n � f d d � } | d � | d | �} t j | j � } | d
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t | � k r?Pq?W� WYd d } ~ Xn Xt | | d | �d S)z�Copy all stat info (mode bits, atime, mtime, flags) from src to dst.
If the optional flag `follow_symlinks` is not set, symlinks aren't followed if and
only if both `src` and `dst` are symlinks.
�nsNr4 c W s d S)Nr )rQ r4 rO r r r! �_nop� s zcopystat.<locals>._nopc s t t | � � S)N)�getattrr, )rL )rR r r! �lookup� s zcopystat.<locals>.lookupc s) t t | � � } | t j k r% | S� S)N)rS r, �supports_follow_symlinks)rL r? )rR r r! rT � s r8 �utimerB �st_flagsZchflags�
EOPNOTSUPPrG )rX rG )r, r- r; r8 rD r: � st_atime_ns� st_mtime_ns�NotImplementedErrorr+ rW r. rF rS rN ) r1 r2 r4 ZfollowrT r@ �mode�why�errr )rR r! r � s, +!
'c C s] t j j | � r3 t j j | t j j | � � } 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- �isdir�join�basenamer r )r1 r2 r4 r r r! r � s
!c C s] t j j | � r3 t j j | t j j | � � } t | | d | �t | | d | �| S)z�Copy data and all stat info ("cp -p src dst"). Return the file's
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r4 )r, r- r_ r` ra r r )r1 r2 r4 r r r! r � s
!c s � f d d � } | S)z�Function that can be used as copytree() ignore parameter.
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that are used to exclude filesc s: g } x' � D] } | j t j | | � � q
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z)ignore_patterns.<locals>._ignore_patternsr )rh ri r )rh r! r s c C ss t j | � } | d k r- | | | � } n t � } t j | � g } x�| D]�} | | k re qP t j j | | � }
t j j | | � } y� t j j |
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r\} z9 t | d d � d k rJ| j | | t | � f � WYd d } ~ Xn X| rot
| � � | S)a� Recursively copy a directory tree.
The destination directory must not already exist.
If exception(s) occur, an Error is raised with a list of reasons.
If the optional symlinks flag is true, symbolic links in the
source tree result in symbolic links in the destination tree; if
it is false, the contents of the files pointed to by symbolic
links are copied. If the file pointed by the symlink doesn't
exist, an exception will be added in the list of errors raised in
an Error exception at the end of the copy process.
You can set the optional ignore_dangling_symlinks flag to true if you
want to silence this exception. Notice that this has no effect on
platforms that don't support os.symlink.
The optional ignore argument is a callable. If given, it
is called with the `src` parameter, which is the directory
being visited by copytree(), and `names` which is the list of
`src` contents, as returned by os.listdir():
callable(src, names) -> 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.
Nr4 r Zwinerror)r, �listdirre �makedirsr- r` r; r= r< r �existsr_ r
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r�| t j | t j � � Yn Xd S)Nz%Cannot call rmtree on a symbolic linkr )r, r- r; r. �sys�exc_inforj r` rC r: r8 �S_ISDIR�_rmtree_unsafe�unlink�rmdir)r- �onerrorrJ rL �fullnamer\ r r r! rw k s6
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rb } z' | | _ | t j | t j � � WYd d } ~ Xn Xx�| D]�} t j j | | � } y( t j | d | d d �} | j } Wn t k
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r7| t j | t j � � Yqj Xqj Wd S)N�dir_fdr4 Fr z%Cannot call rmtree on a symbolic link)r, rj r. �filenamert ru r- r` r8 r: rv r> �O_RDONLY�samestat�fstat�_rmtree_safe_fdry r; �closerx )
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r� c ! C s� | r d d � } n | d k r- d d � } t r�t | t � rQ t j | � } y t j | � } Wn/ t k
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r�| t j j | t j � � Yn XWd t j | � Xn
t | | � Sd S)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.<locals>.onerrorNc W s � d S)Nr )rO r r r! rz � s z%Cannot call rmtree on a symbolic link)�_use_fd_functions�
isinstance�bytesr, �fsdecoderC � Exceptionrt ru r> r~ r- r r� r� ry r. r; r� rw )r- �
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%c C s5 t j j t j j p d } t j j | j | � � S)N� )r, r- �sep�altsepra �rstrip)r- r� r r r! � _basename� s r� c
C s] | } t j j | � rx t | | � r; t j | | � d St j j | t | � � } t j j | � rx t d | � � y t j | | � Wn� t k
rXt j j
| � r� t j | � } t j | | � t j
| � nw t j j | � r:t | | � rt d | | f � � t | | d | d d �t | � n | | | � t j
| � Yn X| 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'.rq ro T)r, r- r_ r3 �renamer` r� rl r
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c C s{ t j j | � } t j j | � } | j t j j � sI | t j j 7} | j t j j � sn | t j j 7} | j | � S)N)r, r- r0 �endswithr� �
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rF d } Yn X| d k r[ | d Sd S)z"Returns a gid, given a group name.N� )r �KeyError)rL �resultr r r! �_get_gid; s
r� c C s_ t d k s | d k r d Sy t | � } Wn t k
rF d } Yn X| d k r[ | d Sd S)z"Returns an uid, given a user name.Nr� )r r� )rL r� r r r! �_get_uidG s
r� �gzipc
s� | d k r d } nf t r0 | d k r0 d } nK t rK | d k rK d } n0 t rf | d k rf d } n t d j | � � � d d l } | r� d
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�Wd | j � X| S)a� Create a (possibly compressed) tar file from all the files under
'base_dir'.
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'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.
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the appropriate compression extension (".gz", ".bz2", or ".xz").
Returns the output filename.
Nr� r� Zgz�bzip2�bz2�xzzCbad 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)�gidZgname�uid�uname)Ztarinfo)r� �group�ownerr� r r! � _set_uid_gid� s z#_make_tarball.<locals>._set_uid_gidzw|%srd )�_ZLIB_SUPPORTED�_BZ2_SUPPORTED�_LZMA_SUPPORTED�
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� � } t j j | � r�| j | | � | d k r�| j d | � q�WqWWd QRX| S) z�Create a zip file from all the files under 'base_dir'.
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name of the output zip file.
r Nz.zipz creating %sz#creating '%s' and adding '%s' to it�wZ compressionz adding '%s')�zipfiler, r- r� rl r� rk �ZipFileZ ZIP_DEFLATED�normpath�curdirr' �walk�sortedr` �isfile)r� r� r� r� r� r� Z zip_filenamer� Zzfr- �dirpathZdirnames� filenamesrL r r r! �
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! r� r� r� zuncompressed tar filezgzip'ed tar-fileZgztarzZIP file�zipr� zbzip2'ed tar-fileZbztarr� zxz'ed tar-fileZxztarc C s' d d � t j � D� } | j � | S)z�Returns a list of supported formats for archiving and unarchiving.
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c S s& g | ] \ } } | | d f � q S)r� r )�.0rL �registryr r r! �
<listcomp>� s z'get_archive_formats.<locals>.<listcomp>)�_ARCHIVE_FORMATS�items�sort)�formatsr r r! r � s
r� c C s� | d k r g } t | � s. t d | � � t | t t f � sO t d � � xB | D]: } t | t t f � s� t | � d k rV t d � � qV W| | | f t | <d S)au Registers an archive format.
name is the name of the format. function is the callable that will be
used to create archives. If provided, extra_args is a sequence of
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description can be provided to describe the format, and will be returned
by the get_archive_formats() function.
Nz The %s object is not callablez!extra_args needs to be a sequencer� z+extra_args elements are : (arg_name, value))�callable� TypeErrorr� �tuple�list�lenr� )rL �function�
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(c C s t | =d S)N)r� )rL r r r! r � s c C sU t j � } | d k rY | d k r4 | j d | � t j j | � } | sY t j | � | d k rn t j } d | d | i }
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� } Wd | d k rP| d k rC| j d | � t j | � X| S) a Create an archive file (eg. zip or tar).
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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, �getcwd�debugr- r0 �chdirr� r� r� r� )r� r7 Zroot_dirr� r� r� r� r� r� Zsave_cwdrP � format_info�func�arg�valr} r r r! r � s6
c C s' d d � t j � D� } | j � | S)z�Returns a list of supported formats for unpacking.
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c S s- g | ]# \ } } | | d | d f � q S)r � r )r� rL r� r r r! r� 0 s z&get_unpack_formats.<locals>.<listcomp>)�_UNPACK_FORMATSr� r� )r� r r r! r * s
c C s� i } x9 t j � D]+ \ } } x | d D] } | | | <q* Wq Wx: | D]2 } | | k rI d } t | | | | f � � qI Wt | � s� t d � � d S)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� ) �
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r� c C s< | d k r g } t | | | � | | | | f t | <d S)aM Registers an unpack format.
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} t j | | f � S)a Get the size of the terminal window.
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