o U h@sndZddlZddlZddlZddlZddlmZddlmZddl m Z GdddZ dd d Z dd d Z dS)z!Generates tarballs for Git trees.N)closing)BytesIO)SEEK_ENDc@s$eZdZdZdddZd ddZdS) ChunkedBytesIOa=Turn a list of bytestrings into a file-like object. This is similar to creating a `BytesIO` from a concatenation of the bytestring list, but saves memory by NOT creating one giant bytestring first:: BytesIO(b''.join(list_of_bytestrings)) =~= ChunkedBytesIO( list_of_bytestrings) returnNcCs||_d|_dS)N)rr)contentspos)selfrr c/var/www/html/construction_image-detection-poc/venv/lib/python3.10/site-packages/dulwich/archive.py__init__-s zChunkedBytesIO.__init__cCs|dkrtd}g}|j\}}|t|jkrb|t|j||kr9||j||||||7}||f|_n)||j||d|t|j||8}|d7}d}||f|_|t|jksd|S)Nrinf)floatrlenrappendjoin)r maxbytesbufchunkcursorr r r read1s"    zChunkedBytesIO.read)rN)N)__name__ __module__ __qualname____doc__r rr r r r r"s rrc cs8t}ttdd||}}|dkr9|d|ddks%Jd|d|td ||dt t |||D]F\}}z||j } Wn t ySYq?wt | j} t} |d d | _| | _|j| _|| _|| | |V|d|dq?Wdn1swY|VdS) aEGenerate a tar stream for the contents of a Git tree. Returns a generator that lazily assembles a .tar.gz archive, yielding it in pieces (bytestrings). To obtain the complete .tar.gz binary file, simply concatenate these chunks. Args: store: Object store to retrieve objects from tree: Tree object for the tree root mtime: UNIX timestamp that is assigned as the modification time for all files, and the gzip header modification time if format='gz' format: Optional compression format for tarball Returns: Bytestrings Nzw:gzrszInvalid gzip headerzs    %5