-=[ Mr. Bumblebee ]=-
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f d „ ƒ YZ d „ Z d S( st Container format for Bazaar data.
"Containers" and "records" are described in
doc/developers/container-format.txt.
i ( t absolute_import( t StringION( t errorss) Bazaar pack format 1 (introduced in 0.18)s [
]c C@ s2 t j | ƒ d k r. t j d | f ƒ ‚ n d S( sÜ Do some basic checking of 'name'.
At the moment, this just checks that there are no whitespace characters in a
name.
:raises InvalidRecordError: if name is not valid.
:seealso: _check_name_encoding
s %r is not a valid name.N( t _whitespace_ret searcht NoneR t InvalidRecordError( t name( ( s/ /usr/lib/python2.7/dist-packages/bzrlib/pack.pyt _check_name% s c C@ s@ y | j d ƒ Wn( t k
r; } t j t | ƒ ƒ ‚ n Xd S( sß Check that 'name' is valid UTF-8.
This is separate from _check_name because UTF-8 decoding is relatively
expensive, and we usually want to avoid it.
:raises InvalidRecordError: if name is not valid UTF-8.
s utf-8N( t decodet UnicodeDecodeErrorR R t str( R t e( ( s/ /usr/lib/python2.7/dist-packages/bzrlib/pack.pyt _check_name_encoding2 s t ContainerSerialiserc B@ s2 e Z d Z d „ Z d „ Z d „ Z d „ Z RS( sÍ A helper class for serialising containers.
It simply returns bytes from method calls to 'begin', 'end' and
'bytes_record'. You may find ContainerWriter to be a more convenient
interface.
c C@ s t d S( s& Return the bytes to begin a container.s
( t
FORMAT_ONE( t self( ( s/ /usr/lib/python2.7/dist-packages/bzrlib/pack.pyt beginH s c C@ s d S( s' Return the bytes to finish a container.t E( ( R ( ( s/ /usr/lib/python2.7/dist-packages/bzrlib/pack.pyt endL s c C@ s€ d g } | j t | ƒ d ƒ xC | D]; } x | D] } t | ƒ q4 W| j d j | ƒ d ƒ q' W| j d ƒ d j | ƒ S( s% Return the header for a Bytes record.t Bs
t t ( t appendR R t join( R t lengtht namest
byte_sectionst
name_tupleR ( ( s/ /usr/lib/python2.7/dist-packages/bzrlib/pack.pyt bytes_headerP s
c C@ s | j t | ƒ | ƒ | S( sÆ Return the bytes for a Bytes record with the given name and
contents.
If the content may be large, construct the header separately and then
stream out the contents.
( R t len( R t bytesR ( ( s/ /usr/lib/python2.7/dist-packages/bzrlib/pack.pyt bytes_recorda s ( t __name__t
__module__t __doc__R R R R ( ( ( s/ /usr/lib/python2.7/dist-packages/bzrlib/pack.pyR @ s
t ContainerWriterc B@ sA e Z d Z d Z d „ Z d „ Z d „ Z d „ Z d „ Z RS( sú A class for writing containers to a file.
:attribute records_written: The number of user records added to the
container. This does not count the prelude or suffix of the container
introduced by the begin() and end() methods.
i † c C@ s+ | | _ d | _ d | _ t ƒ | _ d S( s‘ Constructor.
:param write_func: a callable that will be called when this
ContainerWriter needs to write some bytes.
i N( t _write_funct current_offsett records_writtenR t _serialiser( R t
write_func( ( s/ /usr/lib/python2.7/dist-packages/bzrlib/pack.pyt __init__w s c C@ s | j | j j ƒ ƒ d S( s Begin writing a container.N( R) R( R ( R ( ( s/ /usr/lib/python2.7/dist-packages/bzrlib/pack.pyR ‚ s c C@ s& | j | ƒ | j t | ƒ 7_ d S( N( R% R& R ( R R ( ( s/ /usr/lib/python2.7/dist-packages/bzrlib/pack.pyR) † s
c C@ s | j | j j ƒ ƒ d S( s Finish writing a container.N( R) R( R ( R ( ( s/ /usr/lib/python2.7/dist-packages/bzrlib/pack.pyR Š s c C@ s | j } t | ƒ } | | j k rG | j | j j | | ƒ | ƒ n) | j | j j | | ƒ ƒ | j | ƒ | j d 7_ | | j | f S( s² Add a Bytes record with the given names.
:param bytes: The bytes to insert.
:param names: The names to give the inserted bytes. Each name is
a tuple of bytestrings. The bytestrings may not contain
whitespace.
:return: An offset, length tuple. The offset is the offset
of the record within the container, and the length is the
length of data that will need to be read to reconstitute the
record. These offset and length can only be used with the pack
interface - they might be offset by headers or other such details
and thus are only suitable for use by a ContainerReader.
i ( R& R t _JOIN_WRITES_THRESHOLDR) R( R R' ( R R R R& R ( ( s/ /usr/lib/python2.7/dist-packages/bzrlib/pack.pyt add_bytes_recordŽ s
( R! R" R# R+ R* R R) R R, ( ( ( s/ /usr/lib/python2.7/dist-packages/bzrlib/pack.pyR$ k s t ReadVFilec B@ s2 e Z d Z d „ Z d „ Z d „ Z d „ Z RS( s¢ Adapt a readv result iterator to a file like protocol.
The readv result must support the iterator protocol returning (offset,
data_bytes) pairs.
c C@ s" t | ƒ } | | _ d | _ d S( sŸ Construct a new ReadVFile wrapper.
:seealso: make_readv_reader
:param readv_result: the most recent readv result - list or generator
N( t itert readv_resultR t _string( R R/ ( ( s/ /usr/lib/python2.7/dist-packages/bzrlib/pack.pyR* ³ s c C@ sa | j d k s' | j j ƒ | j k r] | j j ƒ \ } } t | ƒ | _ t | ƒ | _ n d S( N( R0 R t tellt _string_lengthR/ t nextR R ( R t offsett data( ( s/ /usr/lib/python2.7/dist-packages/bzrlib/pack.pyt _nextÀ s
c C@ s[ | j ƒ | j j | ƒ } t | ƒ | k rW t j d | t | ƒ | d f ƒ ‚ n | S( Ns5 wanted %d bytes but next hunk only contains %d: %r...i ( R6 R0 t readR R t BzrError( R R t result( ( s/ /usr/lib/python2.7/dist-packages/bzrlib/pack.pyR7 Ç s
c C@ s^ | j ƒ | j j ƒ } | j j ƒ | j k rZ | d d k rZ t j d | f ƒ ‚ n | S( s1 Note that readline will not cross readv segments.iÿÿÿÿs
s( short readline in the readvfile hunk: %r( R6 R0 t readlineR1 R2 R R8 ( R R9 ( ( s/ /usr/lib/python2.7/dist-packages/bzrlib/pack.pyR: Ð s
( ( R! R" R# R* R6 R7 R: ( ( ( s/ /usr/lib/python2.7/dist-packages/bzrlib/pack.pyR- © s
c C@ sH d t t ƒ d f g } | j | ƒ t t | j | | ƒ ƒ ƒ } | S( s9 Create a ContainerReader that will read selected records only.
:param transport: The transport the pack file is located on.
:param filename: The filename of the pack file.
:param requested_records: The record offset, length tuples as returned
by add_bytes_record for the desired records.
i i ( R R t extendt ContainerReaderR- t readv( t transportt filenamet requested_recordst readv_blocksR9 ( ( s/ /usr/lib/python2.7/dist-packages/bzrlib/pack.pyt make_readv_readerÚ s
t
BaseReaderc B@ s& e Z d „ Z d d „ Z d „ Z RS( c C@ s
| | _ d S( su Constructor.
:param source_file: a file-like object with `read` and `readline`
methods.
N( t _source( R t source_file( ( s/ /usr/lib/python2.7/dist-packages/bzrlib/pack.pyR* ë s c C@ s | j j | ƒ S( N( RD R7 ( R R ( ( s/ /usr/lib/python2.7/dist-packages/bzrlib/pack.pyt reader_funcó s c C@ s: | j j ƒ } | j d ƒ s- t j ƒ ‚ n | j d ƒ S( Ns
( RD R: t endswithR t UnexpectedEndOfContainerErrort rstrip( R t line( ( s/ /usr/lib/python2.7/dist-packages/bzrlib/pack.pyt
_read_lineö s N( R! R" R* R RF RK ( ( ( s/ /usr/lib/python2.7/dist-packages/bzrlib/pack.pyRC é s R< c B@ sD e Z d Z d „ Z d „ Z d „ Z d „ Z d „ Z d „ Z RS( s. A class for reading Bazaar's container format.c C@ s | j ƒ | j ƒ S( sƒ Iterate over the container, yielding each record as it is read.
Each yielded record will be a 2-tuple of (names, callable), where names
is a ``list`` and bytes is a function that takes one argument,
``max_length``.
You **must not** call the callable after advancing the iterator to the
next record. That is, this code is invalid::
record_iter = container.iter_records()
names1, callable1 = record_iter.next()
names2, callable2 = record_iter.next()
bytes1 = callable1(None)
As it will give incorrect results and invalidate the state of the
ContainerReader.
:raises ContainerError: if any sort of container corruption is
detected, e.g. UnknownContainerFormatError is the format of the
container is unrecognised.
:seealso: ContainerReader.read
( t _read_formatt
_iter_records( R ( ( s/ /usr/lib/python2.7/dist-packages/bzrlib/pack.pyt iter_records s
c C@ s | j ƒ | j ƒ S( sû Iterate over the container, yielding each record as it is read.
Each yielded record will be an object with ``read`` and ``validate``
methods. Like with iter_records, it is not safe to use a record object
after advancing the iterator to yield next record.
:raises ContainerError: if any sort of container corruption is
detected, e.g. UnknownContainerFormatError is the format of the
container is unrecognised.
:seealso: iter_records
( RL t _iter_record_objects( R ( ( s/ /usr/lib/python2.7/dist-packages/bzrlib/pack.pyt iter_record_objects s
c c@ s& x | j ƒ D] } | j ƒ Vq
Wd S( N( RO R7 ( R t record( ( s/ /usr/lib/python2.7/dist-packages/bzrlib/pack.pyRM ) s c c@ s} xv t rx | j d ƒ } | d k r; t | j ƒ } | Vq | d k rK d S| d k rf t j ƒ ‚ q t j | ƒ ‚ q Wd S( Ni R R R ( t TrueRF t BytesRecordReaderRD R RH t UnknownRecordTypeError( R t record_kindt reader( ( s/ /usr/lib/python2.7/dist-packages/bzrlib/pack.pyRO - s c C@ s. | j ƒ } | t k r* t j | ƒ ‚ n d S( N( RK R R t UnknownContainerFormatError( R t format( ( s/ /usr/lib/python2.7/dist-packages/bzrlib/pack.pyRL ? s c C@ s¼ t ƒ } x | j ƒ D]q \ } } | d ƒ xX | D]P } x | D] } t | ƒ q@ W| | k rv t j | d ƒ ‚ n | j | ƒ q3 Wq W| j d ƒ } | d k r¸ t j | ƒ ‚ n d S( s Validate this container and its records.
Validating consumes the data stream just like iter_records and
iter_record_objects, so you cannot call it after
iter_records/iter_record_objects.
:raises ContainerError: if something is invalid.
i i R N( t setRN R R
R t DuplicateRecordNameErrort addRF t ContainerHasExcessDataError( R t all_namest record_namest
read_bytesR R t excess_bytes( ( s/ /usr/lib/python2.7/dist-packages/bzrlib/pack.pyt validateD s
( R! R" R# RN RP RM RO RL Ra ( ( ( s/ /usr/lib/python2.7/dist-packages/bzrlib/pack.pyR< ý s RS c B@ s# e Z d „ Z d „ Z d „ Z RS( c C@ sÈ | j ƒ } y t | ƒ } Wn' t k
rE t j d | f ƒ ‚ n Xg } xc t r± | j ƒ } | d k rq Pn t | j d ƒ ƒ } x | D] } t | ƒ q W| j | ƒ qO W| | _
| | j f S( sâ Read this record.
You can either validate or read a record, you can't do both.
:returns: A tuple of (names, callable). The callable can be called
repeatedly to obtain the bytes for the record, with a max_length
argument. If max_length is None, returns all the bytes. Because
records can be arbitrarily large, using None is not recommended
unless you have reason to believe the content will fit in memory.
s %r is not a valid length.R R ( RK t intt
ValueErrorR R RR t tuplet splitR R t _remaining_lengtht _content_reader( R t length_lineR R t name_lineR R ( ( s/ /usr/lib/python2.7/dist-packages/bzrlib/pack.pyR7 a s"
c C@ sm | d k r | j } n t | | j ƒ } | j | 8_ | j | ƒ } t | ƒ | k ri t j ƒ ‚ n | S( N( R Rf t minRF R R RH ( R t
max_lengtht length_to_readR ( ( s/ /usr/lib/python2.7/dist-packages/bzrlib/pack.pyRg ‚ s c C@ sL | j ƒ \ } } x) | D]! } x | D] } t | ƒ q& Wq W| d ƒ d S( s— Validate this record.
You can either validate or read, you can't do both.
:raises ContainerError: if this record is invalid.
N( R7 R
R ( R R R_ R R ( ( s/ /usr/lib/python2.7/dist-packages/bzrlib/pack.pyRa s
( R! R" R7 Rg Ra ( ( ( s/ /usr/lib/python2.7/dist-packages/bzrlib/pack.pyRS _ s ! t ContainerPushParserc B@ s} e Z d Z d „ Z d „ Z d „ Z d
d „ Z d „ Z d „ Z d „ Z
d „ Z d „ Z d
„ Z
d „ Z d „ Z RS( sÄ A "push" parser for container format 1.
It accepts bytes via the ``accept_bytes`` method, and parses them into
records which can be retrieved via the ``read_pending_records`` method.
c C@ s5 d | _ | j | _ g | _ | j ƒ t | _ d S( NR ( t _buffert _state_expecting_format_linet _state_handlert _parsed_recordst _reset_current_recordt Falset finished( R ( ( s/ /usr/lib/python2.7/dist-packages/bzrlib/pack.pyR* ¢ s
c C@ s d | _ g | _ d S( N( R t _current_record_lengtht _current_record_names( R ( ( s/ /usr/lib/python2.7/dist-packages/bzrlib/pack.pyRr © s c C@ sx | j | 7_ d } t | j ƒ } d } xG | | k sH | | j k rs | } | j } | j ƒ t | j ƒ } q- Wd S( N( Rn R R Rp ( R R t last_buffer_lengtht cur_buffer_lengtht last_state_handler( ( s/ /usr/lib/python2.7/dist-packages/bzrlib/pack.pyt accept_bytes s
c C@ s; | r! | j | } | j | 4| S| j } g | _ | Sd S( N( Rq ( R t maxt records( ( s/ /usr/lib/python2.7/dist-packages/bzrlib/pack.pyt read_pending_records» s
c C@ sK | j j d ƒ } | d k rC | j | } | j | d | _ | Sd Sd S( s² Take a line out of the buffer, and return the line.
If a newline byte is not found in the buffer, the buffer is
unchanged and this returns None instead.
s
iÿÿÿÿi N( Rn t findR ( R t newline_posRJ ( ( s/ /usr/lib/python2.7/dist-packages/bzrlib/pack.pyt
_consume_lineÅ s
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c C@ s‡ t | j ƒ d k rƒ | j d } | j d | _ | d k rM | j | _ qƒ | d k rq t | _ | j | _ qƒ t j | ƒ ‚ n d S( Ni i R R ( R Rn t _state_expecting_lengthRp RR Rt t _state_expecting_nothingR RT ( R t record_type( ( s/ /usr/lib/python2.7/dist-packages/bzrlib/pack.pyR Ú s
c C@ sh | j ƒ } | d k rd y t | ƒ | _ Wn' t k
rT t j d | f ƒ ‚ n X| j | _ n d S( Ns %r is not a valid length.( R€ R Rb Ru Rc R R t _state_expecting_nameRp ( R RJ ( ( s/ /usr/lib/python2.7/dist-packages/bzrlib/pack.pyR‚ æ s
c C@ st | j ƒ } | d k r' | j | _ nI | rp t | j d ƒ ƒ } x | D] } t | ƒ qI W| j j | ƒ n d S( NR R ( R€ t _state_expecting_bodyRp Rd Re R Rv R ( R t encoded_name_partst
name_partst name_part( ( s/ /usr/lib/python2.7/dist-packages/bzrlib/pack.pyR… ð s
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body_bytesRQ ( ( s/ /usr/lib/python2.7/dist-packages/bzrlib/pack.pyR† ú s
c C@ s d S( N( ( R ( ( s/ /usr/lib/python2.7/dist-packages/bzrlib/pack.pyRƒ s c C@ sT d } | j | j k rP | j t | j ƒ } | d k rC d } n t | | ƒ S| S( Ni @ i ( Rp R† Ru R Rn R{ ( R t hintt remaining( ( s/ /usr/lib/python2.7/dist-packages/bzrlib/pack.pyt read_size_hint s
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c c@ se t ƒ } xU t r` | j | j ƒ ƒ } | j | ƒ x | j ƒ D] } | VqA W| j r Pq q Wd S( N( Rm RR R7 R Rz R} Rt ( RE t parserR RQ ( ( s/ /usr/lib/python2.7/dist-packages/bzrlib/pack.pyt iter_records_from_file s
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Copyright © 2017 || Recoded By Mr.Bumblebee