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revlog: improve docstring for findcommonmissing

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This commit is contained in:
Pierre-Yves David 2012-01-09 04:15:31 +01:00
parent e0542a7108
commit a51dc67424
1 changed files with 3 additions and 6 deletions
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9
mercurial/revlog.py
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@ -403,13 +403,10 @@ class revlog(object):
def findcommonmissing(self, common=None, heads=None):
"""Return a tuple of the ancestors of common and the ancestors of heads
that are not ancestors of common.
that are not ancestors of common. In revset terminology, we return the
tuple:
More specifically, the second element is a list of nodes N such that
every N satisfies the following constraints:
1. N is an ancestor of some node in 'heads'
2. N is not an ancestor of any node in 'common'
::common, (::heads) - (::common)
The list is sorted by revision number, meaning it is
topologically sorted.