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comparison cutils/treesum.py @ 336:0049f486e1cd

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treesum: Also provide the WriterBase with flags when printing sizes
author Franz Glasner <fzglas.hg@dom66.de>
date Mon, 31 Mar 2025 12:57:39 +0200
parents 7620142aacd1
children e89eb63fc319
comparison
equal deleted inserted replaced
335:7620142aacd1 336:0049f486e1cd
558 else: 558 else:
559 raise NotImplementedError("`output_style'") 559 raise NotImplementedError("`output_style'")
560 560
561 with out_cm as outfp: 561 with out_cm as outfp:
562 writer = writerstyle(outfp, 562 writer = writerstyle(outfp,
563 size_only=opts.size_only,
564 print_size=opts.print_size,
563 use_base64=opts.base64, 565 use_base64=opts.base64,
564 grouping_separator=opts.grouping_separator 566 grouping_separator=opts.grouping_separator
565 ) 567 )
566 for d in opts.directories: 568 for d in opts.directories:
567 V1DirectoryTreesumGenerator( 569 V1DirectoryTreesumGenerator(
1296 return modestr 1298 return modestr
1297 1299
1298 1300
1299 class WriterBase(object): 1301 class WriterBase(object):
1300 1302
1301 """Base class for all treesum digest file writers. 1303 """(Abstract) base class for all treesum digest file writers.
1302 1304
1303 Wraps an output file pointer for a binary file. 1305 Wraps an output file pointer for a binary file.
1304 1306
1305 Provides low-level methods to write data lines. These methods must be 1307 Provides low-level methods to write data lines. These methods must be
1306 used if the CRC is to be updated also. 1308 used if the CRC is to be updated also.
1317 separator for you OS as bytes""" 1319 separator for you OS as bytes"""
1318 1320
1319 DEFAULT_GROUPING_SEPARATOR = "" 1321 DEFAULT_GROUPING_SEPARATOR = ""
1320 """Disable the thousands separator in case no subclass redefines it""" 1322 """Disable the thousands separator in case no subclass redefines it"""
1321 1323
1322 def __init__(self, outfp, use_base64=False, grouping_separator=None, 1324 def __init__(self, outfp, size_only=False, print_size=False,
1325 use_base64=False, grouping_separator=None,
1323 size_column_width=None): 1326 size_column_width=None):
1327 # Poor man's abstract abstract class implemenetation
1328 assert self.__class__ is not WriterBase
1329
1324 self._outfp = outfp 1330 self._outfp = outfp
1331 self.size_only = size_only
1332 self.print_size = print_size
1325 self.use_base64 = use_base64 1333 self.use_base64 = use_base64
1326 self.grouping_separator = (grouping_separator 1334 self.grouping_separator = (grouping_separator
1327 if grouping_separator is not None 1335 if grouping_separator is not None
1328 else self.DEFAULT_GROUPING_SEPARATOR) 1336 else self.DEFAULT_GROUPING_SEPARATOR)
1329 self.size_column_width = size_column_width or 0 1337 self.size_column_width = size_column_width or 0
1330 self.reset_crc() 1338 self.reset_crc()
1339
1340 def write_size(self, filename, sz):
1341 """
1342
1343 If `sz` is `None` then this is signals an error because a size is
1344 required.
1345
1346 """
1347 raise NotImplementedError("write_size")
1348
1349 def write_file_digest(self, algorithm, filename, digest, size=None):
1350 """
1351
1352 If `size` is `None` and the output of a size is required then this
1353 is an error signal.
1354
1355 """
1356 raise NotImplementedError("write_file_digest")
1331 1357
1332 @property 1358 @property
1333 def crc(self): 1359 def crc(self):
1334 return self._crc 1360 return self._crc
1335 1361