merge: short-circuit search for merge into empty repo
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merge: short-circuit search for merge into empty repo
We should have 3 cases for merge:
- - we have no changesets
- - we have less than half the changesets
- - we have more than half the changesets
For no changesets, we can immediately tell that we need everything.
This happens when we initially branch from a remote repo, so we simply shortcircuit the search and grab everything from the root
When we're actually tracking a project, we should generally have most
of the changesets, so the current search algorithm should minimize
searching.
It should rarely occur that upstreams gets far ahead of us, in which
case, we suffer a longer search.
manifest hash: eabd55841b03225176ea72b985aad36431a438a9
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include hg
recursive-include mercurial *.py
include tkmerge
include hgweb.cgi
include hgeditor rewrite-log convert-repo
include tests/*
include *.txt
include templates/map
include templates/*.tmpl
include doc/*
include README