\edZddlZddlZddlZddlZddlZddlZddlZddlZddl Z ddl m Z ejejzejzZefdZej"fdZej&efdZd dZd dZd Zd Zd Zy)z( File utilities. .. versionadded:: 1.8 N)excutilsc tj||y#t$rH}|jtjk(r tj j |sYd}~yd}~wwxYw)zCreate a directory (and any ancestor directories required) :param path: Directory to create :param mode: Directory creation permissions N)osmakedirsOSErrorerrnoEEXISTpathisdir)r modeexcs 6/usr/lib/python3/dist-packages/oslo_utils/fileutils.py ensure_treer%sP  D$  99 $77==& 's A*>A%%A*c~ ||y#t$r(}|jtjk7rYd}~yd}~wwxYw)zDelete a file, but ignore file not found error. :param path: File to delete :param remove: Optional function to remove passed path N)rrENOENT)r removees rdelete_if_existsr5s6t  77ell "  #s <7<c#K dy#t$r5tj5||dddYy#1swYYyxYwwxYww)zProtect code that wants to operate on PATH atomically. Any exception will cause PATH to be removed. :param path: File to work with :param remove: Optional function to remove passed path N) Exceptionrsave_and_reraise_exception)r rs rremove_path_on_errorrCsD   0 0 2  4L   s=A  A A 9AA A AA AA c|r t|tj|||\}} tj||tj ||S#tj |wxYw)aCreate a temporary file containing data. Create a temporary file containing specified content, with a specified filename suffix and prefix. The tempfile will be created in a default location, or in the directory `path`, if it is not None. `path` and its parent directories will be created if they don't exist. :param content: bytestring to write to the file :param path: same as parameter 'dir' for mkstemp :param suffix: same as parameter 'suffix' for mkstemp :param prefix: same as parameter 'prefix' for mkstemp For example: it can be used in database tests for creating configuration files. .. versionadded:: 1.9 )suffixdirprefix)rtempfilemkstemprwriteclose)contentr rrfds rwrite_to_tempfiler#SsY$ D!!T&IJR W  K  s AA.c(tj|}t|d5tfddD](}|j |t j d* ddd|jS#1swY|jSxYw)aCompute checksum of a file's contents. :param path: Path to the file :param read_chunksize: Maximum number of bytes to be read from the file at once. Default is 65536 bytes or 64KB :param algorithm: The hash algorithm name to use. For example, 'md5', 'sha256', 'sha512' and so on. Default is 'sha256'. Refer to hashlib.algorithms_available for available algorithms :return: Hex digest string of the checksum .. versionadded:: 3.31.0 rbc&jS)N)read)fread_chunksizesrz'compute_file_checksum..s!&&"8r+rN)hashlibnewopeniterupdatetimesleep hexdigest)r r) algorithmchecksumchunkr(s ` @rcompute_file_checksumr7ps{{9%H dD Q8#> E OOE " JJqM          s r`s      t||+dll: )  #%))  &6  : ,)>(r+