U
    @fA                     @   s0   d dl Z d dlZd dlmZ G dd deZdS )    N)AbstractArchiveFileSystemc                       sx   e Zd ZdZdZdZdZddddejddf fdd		Z	e
 fd
dZdd Zdd Zdd Zdd ZdddZ  ZS )ZipFileSystemzRead/Write contents of ZIP archive as a file-system

    Keeps file object open while instance lives.

    This class is pickleable, but not necessarily thread-safe
     zipFrNTc           
         s   t  j| f| |tdkr,td| d|| _t|trn|dkrJd}	n|d }	tj|f|	|d|phi }|| _	|| _
| | _tj| j||||d| _d	| _d	S )
a  
        Parameters
        ----------
        fo: str or file-like
            Contains ZIP, and must exist. If a str, will fetch file using
            :meth:`~fsspec.open_files`, which must return one file exactly.
        mode: str
            Accept: "r", "w", "a"
        target_protocol: str (optional)
            If ``fo`` is a string, this value can be used to override the
            FS protocol inferred from a URL
        target_options: dict (optional)
            Kwargs passed when instantiating the target FS, if ``fo`` is
            a string.
        compression, allowZip64, compresslevel: passed to ZipFile
            Only relevant when creating a ZIP
        Zrwazmode 'z' no understoodazr+bb)modeprotocol)r	   compression
allowZip64compresslevelN)super__init__set
ValueErrorr	   
isinstancestrfsspecopenforce_zip_64Zof	__enter__fozipfileZipFiler   	dir_cache)
selfr   r	   Ztarget_protocolZtarget_optionsr   r   r   kwargsm	__class__ >/tmp/pip-unpacked-wheel-yjyh6wby/fsspec/implementations/zip.pyr      s6    
 
zZipFileSystem.__init__c                    s   t  |dS )N/)r   _strip_protocollstrip)clspathr   r!   r"   r$   G   s    zZipFileSystem._strip_protocolc                 C   s   t | dr|   | `d S )Nr   )hasattrcloser   r   r!   r!   r"   __del__L   s    
zZipFileSystem.__del__c                 C   s   | j   dS )z;Commits any write changes to the file. Done on ``del`` too.N)r   r)   r*   r!   r!   r"   r)   Q   s    zZipFileSystem.closec                    s   | j d ks| jtdkr| j }dd | | j D | _ |D ]P  fddtjj	D }|
 jd j  rzdndd || j |d	 < qBd S )
Nwac                 S   s&   i | ]}| d | d dddqS )r#   r   	directorynamesizetype)rstrip).0dirnamer!   r!   r"   
<dictcomp>Z   s   z+ZipFileSystem._get_dirs.<locals>.<dictcomp>c                    s   i | ]}|t  |d qS N)getattr)r3   szr!   r"   r5   c   s      r#   r-   filer.   r/   )r   r	   r   r   infolistZ_all_dirnamesnamelistr   ZipInfo	__slots__updatefilenamer2   	file_sizeis_dir)r   filesfr!   r9   r"   	_get_dirsU   s    

zZipFileSystem._get_dirsc                 K   s   | j j||f| d S r6   )r   writestr)r   r'   valuer   r!   r!   r"   	pipe_filem   s    zZipFileSystem.pipe_filerbc           	      K   s   |  |}d|kr:| jtdkr:| |r2tdt|d| jkrTd|krTtd| jj||d| j	d}d|kr| 
|}|d |_|d |_|S )	Nr   r,   z7ZipFS can only be open for reading or writing, not bothwr   )force_zip64r0   r/   )r$   r	   r   existsOSErrorFileNotFoundErrorr   r   stripr   infor0   r/   )	r   r'   r	   
block_sizeZ
autocommitZcache_optionsr   outrQ   r!   r!   r"   _openq   s    	




zZipFileSystem._open)rJ   NTN)__name__
__module____qualname____doc__Zroot_markerr
   Zcachabler   
ZIP_STOREDr   classmethodr$   r+   r)   rF   rI   rT   __classcell__r!   r!   r   r"   r      s.   4    r   )r   r   Zfsspec.archiver   r   r!   r!   r!   r"   <module>   s   