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changeset 2489:568e58eed096

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Add revlog.parentrevs function. This allows one to walk the revision graph using only revision numbers, which can be faster than using revision hashes, especially for RevlogNG, where the parents of a revision are stored as revision numbers.
author Alexis S. L. Carvalho <alexis@cecm.usp.br>
date Tue, 20 Jun 2006 14:57:30 -0300
parents 2785aeb51be4
children 6ff82ec1f4b8
files mercurial/revlog.py
diffstat 1 files changed, 7 insertions(+), 0 deletions(-) [+]
line wrap: on
line diff
--- a/mercurial/revlog.py	Fri Jun 23 12:52:42 2006 -0700
+++ b/mercurial/revlog.py	Tue Jun 20 14:57:30 2006 -0300
@@ -477,6 +477,13 @@
         if self.version == REVLOGV0:
             return d
         return [ self.node(x) for x in d ]
+    def parentrevs(self, rev):
+        if rev == -1:
+            return (-1, -1)
+        d = self.index[rev][-3:-1]
+        if self.version == REVLOGV0:
+            return [ self.rev(x) for x in d ]
+        return d
     def start(self, rev):
         if rev < 0:
             return -1