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comparison mercurial/revlog.py @ 39086:64ddad2f26bb

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revlog: use a symbolic constant for the deltas/text ration We are about to use it somewhere else, we should as well make it easier to access and change.
author Boris Feld <boris.feld@octobus.net>
date Tue, 14 Aug 2018 13:47:07 -0700
parents dbb3e9e44fce
children f90b333e79cb
comparison
equal deleted inserted replaced
39085:dbb3e9e44fce 39086:64ddad2f26bb
806 class revlogoldindex(list): 806 class revlogoldindex(list):
807 def __getitem__(self, i): 807 def __getitem__(self, i):
808 if i == -1: 808 if i == -1:
809 return (0, 0, 0, -1, -1, -1, -1, nullid) 809 return (0, 0, 0, -1, -1, -1, -1, nullid)
810 return list.__getitem__(self, i) 810 return list.__getitem__(self, i)
811
812 # maximum <delta-chain-data>/<revision-text-length> ratio
813 LIMIT_DELTA2TEXT = 2
811 814
812 class revlogoldio(object): 815 class revlogoldio(object):
813 def __init__(self): 816 def __init__(self):
814 self.size = indexformatv0.size 817 self.size = indexformatv0.size
815 818
2491 return False 2494 return False
2492 2495
2493 # Bad delta from cumulated payload size: 2496 # Bad delta from cumulated payload size:
2494 # 2497 #
2495 # If the sum of delta get larger than K * target text length. 2498 # If the sum of delta get larger than K * target text length.
2496 if textlen * 2 < deltainfo.compresseddeltalen: 2499 if textlen * LIMIT_DELTA2TEXT < deltainfo.compresseddeltalen:
2497 return False 2500 return False
2498 2501
2499 # Bad delta from chain length: 2502 # Bad delta from chain length:
2500 # 2503 #
2501 # If the number of delta in the chain gets too high. 2504 # If the number of delta in the chain gets too high.