mercurial/revlog.py
changeset 119 c7a66f9752a4
parent 117 2ac722ad1a9d
child 126 f6d1f8a84372
equal deleted inserted replaced
118:a0e57df96e96 119:c7a66f9752a4
   186         return mdiff.textdiff(a, b)
   186         return mdiff.textdiff(a, b)
   187 
   187 
   188     def patches(self, t, pl):
   188     def patches(self, t, pl):
   189         return mdiff.patches(t, pl)
   189         return mdiff.patches(t, pl)
   190 
   190 
       
   191     def delta(self, node):
       
   192         r = self.rev(node)
       
   193         b = self.base(r)
       
   194         if r == b:
       
   195             return self.diff(self.revision(self.node(r - 1)),
       
   196                              self.revision(node))
       
   197         else:
       
   198             f = self.opener(self.datafile)
       
   199             f.seek(self.start(r))
       
   200             data = f.read(self.length(r))
       
   201         return decompress(data)
       
   202 
   191     def revision(self, node):
   203     def revision(self, node):
   192         if node == nullid: return ""
   204         if node == nullid: return ""
   193         if self.cache and self.cache[0] == node: return self.cache[2]
   205         if self.cache and self.cache[0] == node: return self.cache[2]
   194 
   206 
   195         text = None
   207         text = None