Mercurial > public > mercurial-scm > hg-stable

comparison mercurial/filelog.py @ 2887:05257fd28591

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filelog: add hash-based comparisons For status, rather than reconstruct full file versions from revlog for comparison, compare hashes.
author Matt Mackall <mpm@selenic.com>
date Mon, 14 Aug 2006 15:07:00 -0500
parents 345bac2bc4ec
children 5df3e5cf16bc
comparison
equal deleted inserted replaced
2886:bee4b7abcb01 2887:05257fd28591
63 m = self.readmeta(node) 63 m = self.readmeta(node)
64 if m and m.has_key("copy"): 64 if m and m.has_key("copy"):
65 return (m["copy"], bin(m["copyrev"])) 65 return (m["copy"], bin(m["copyrev"]))
66 return False 66 return False
67 67
68 def cmp(self, node, text):
69 """compare text with a given file revision"""
70
71 # for renames, we have to go the slow way
72 if self.renamed(node):
73 t2 = self.read(node)
74 return t2 == text
75
76 p1, p2 = self.parents(node)
77 h = hash(text, p1, p2)
78
79 return h != node
80
81 def makenode(self, node, text):
82 """calculate a file nodeid for text, descended or possibly
83 unchanged from node"""
84
85 if self.cmp(node, text):
86 return hash(text, node, nullid)
87 return node
88
68 def annotate(self, node): 89 def annotate(self, node):
69 90
70 def decorate(text, rev): 91 def decorate(text, rev):
71 return ([rev] * len(text.splitlines()), text) 92 return ([rev] * len(text.splitlines()), text)
72 93