Mercurial > public > mercurial-scm > hg-stable

comparison mercurial/revlog.py @ 3453:dba3cadef789

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author Matt Mackall <mpm@selenic.com>
date Wed, 18 Oct 2006 11:44:56 -0500
parents b17f9d3eda74
children ceaa3fefc10c
comparison
equal deleted inserted replaced
3452:fcf14d87e0a4 3453:dba3cadef789
744 continue 744 continue
745 elif pn == nullid: 745 elif pn == nullid:
746 continue 746 continue
747 return c 747 return c
748 748
749 def lookup(self, id): 749 def _match(self, id):
750 """locate a node based on:
751 - revision number or str(revision number)
752 - nodeid or subset of hex nodeid
753 """
754 if isinstance(id, (long, int)): 750 if isinstance(id, (long, int)):
755 # rev 751 # rev
756 return self.node(id) 752 return self.node(id)
757 if len(id) == 20: 753 if len(id) == 20:
758 # possibly a binary node 754 # possibly a binary node
770 if rev < 0: rev = self.count() + rev 766 if rev < 0: rev = self.count() + rev
771 if rev < 0 or rev >= self.count(): raise ValueError 767 if rev < 0 or rev >= self.count(): raise ValueError
772 return self.node(rev) 768 return self.node(rev)
773 except (ValueError, OverflowError): 769 except (ValueError, OverflowError):
774 pass 770 pass
775 try: 771 if len(id) == 40:
776 if len(id) == 40: 772 try:
777 # a full hex nodeid? 773 # a full hex nodeid?
778 node = bin(id) 774 node = bin(id)
779 r = self.rev(node) 775 r = self.rev(node)
780 return node 776 return node
781 elif len(id) < 40: 777 except TypeError:
778 pass
779
780 def _partialmatch(self, id):
781 if len(id) < 40:
782 try:
782 # hex(node)[:...] 783 # hex(node)[:...]
783 bin_id = bin(id[:len(id) & ~1]) # grab an even number of digits 784 bin_id = bin(id[:len(id) & ~1]) # grab an even number of digits
784 node = None 785 node = None
785 for n in self.nodemap: 786 for n in self.nodemap:
786 if n.startswith(bin_id) and hex(n).startswith(id): 787 if n.startswith(bin_id) and hex(n).startswith(id):
787 if node is not None: 788 if node is not None:
788 raise RevlogError(_("Ambiguous identifier")) 789 raise RevlogError(_("Ambiguous identifier"))
789 node = n 790 node = n
790 if node is not None: 791 if node is not None:
791 return node 792 return node
792 except TypeError: 793 except TypeError:
793 pass 794 pass
795
796 def lookup(self, id):
797 """locate a node based on:
798 - revision number or str(revision number)
799 - nodeid or subset of hex nodeid
800 """
801
802 n = self._match(id)
803 if n is not None:
804 return n
805 n = self._partialmatch(id)
806 if n:
807 return n
794 808
795 raise RevlogError(_("No match found")) 809 raise RevlogError(_("No match found"))
796 810
797 def cmp(self, node, text): 811 def cmp(self, node, text):
798 """compare text with a given file revision""" 812 """compare text with a given file revision"""