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comparison mercurial/revlog.py @ 4258:b11a2fb59cf5

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revlog: simplify revlog version handling - pass the default version as an attribute on the opener - eliminate config option mess
author Matt Mackall <mpm@selenic.com>
date Thu, 22 Mar 2007 19:52:38 -0500
parents 1b5c38e9d7aa
children 0ce23256e454
comparison
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4257:1b5c38e9d7aa 4258:b11a2fb59cf5
309 Both pieces of the revlog are written to in an append-only 309 Both pieces of the revlog are written to in an append-only
310 fashion, which means we never need to rewrite a file to insert or 310 fashion, which means we never need to rewrite a file to insert or
311 remove data, and can use some simple techniques to avoid the need 311 remove data, and can use some simple techniques to avoid the need
312 for locking while reading. 312 for locking while reading.
313 """ 313 """
314 def __init__(self, opener, indexfile, defversion=REVLOG_DEFAULT_VERSION): 314 def __init__(self, opener, indexfile):
315 """ 315 """
316 create a revlog object 316 create a revlog object
317 317
318 opener is a function that abstracts the file opening operation 318 opener is a function that abstracts the file opening operation
319 and can be used to implement COW semantics or the like. 319 and can be used to implement COW semantics or the like.
323 self.opener = opener 323 self.opener = opener
324 324
325 self.indexstat = None 325 self.indexstat = None
326 self.cache = None 326 self.cache = None
327 self.chunkcache = None 327 self.chunkcache = None
328 self.defversion = defversion 328 self.defversion=REVLOG_DEFAULT_VERSION
329 if hasattr(opener, "defversion"):
330 self.defversion = opener.defversion
329 self.load() 331 self.load()
330 332
331 def load(self): 333 def load(self):
332 v = self.defversion 334 v = self.defversion
333 try: 335 try: