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comparison mercurial/revlog.py @ 1322:b3d44e9b3092

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Make revlog constructor more discerning in its treatment of errors.
author Bryan O'Sullivan <bos@serpentine.com>
date Thu, 22 Sep 2005 23:31:44 -0700
parents eb3cc5e2eb89
children 57220daf40e9
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1321:b47f96a178a3 1322:b3d44e9b3092
8 8
9 This software may be used and distributed according to the terms 9 This software may be used and distributed according to the terms
10 of the GNU General Public License, incorporated herein by reference. 10 of the GNU General Public License, incorporated herein by reference.
11 """ 11 """
12 12
13 import zlib, struct, sha, binascii, heapq
14 import mdiff
15 from node import * 13 from node import *
14 from demandload import demandload
15 demandload(globals(), "binascii errno heapq mdiff sha struct urllib2 zlib")
16 16
17 def hash(text, p1, p2): 17 def hash(text, p1, p2):
18 """generate a hash from the given text and its parent hashes 18 """generate a hash from the given text and its parent hashes
19 19
20 This hash combines both the current file contents and its history 20 This hash combines both the current file contents and its history
177 self.opener = opener 177 self.opener = opener
178 self.cache = None 178 self.cache = None
179 179
180 try: 180 try:
181 i = self.opener(self.indexfile).read() 181 i = self.opener(self.indexfile).read()
182 except IOError: 182 except urllib2.URLError:
183 raise
184 except IOError, inst:
185 if inst.errno != errno.ENOENT:
186 raise
183 i = "" 187 i = ""
184 188
185 if len(i) > 10000: 189 if len(i) > 10000:
186 # big index, let's parse it on demand 190 # big index, let's parse it on demand
187 parser = lazyparser(i, self) 191 parser = lazyparser(i, self)