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rebase: improve base revset performance

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The old revset had pretty terrible performance on large repositories (12+
seconds). This new revset achieves the same result in only 0.7s. As we improve
the underlying revset APIs we can probably get this revset down to 'only(base,
dest)::', but at the moment that version still takes 2s.
This commit is contained in:
Durham Goode 2014-10-20 18:50:09 -07:00
parent 365c7718eb
commit aea70fa3a4
1 changed files with 3 additions and 3 deletions
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6
hgext/rebase.py
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@ -273,9 +273,9 @@ def rebase(ui, repo, **opts):
ui.status(_('empty "base" revision set - '
"can't compute rebase set\n"))
return 1
rebaseset = repo.revs(
'(children(ancestor(%ld, %d)) and ::(%ld))::',
base, dest, base)
commonanc = repo.revs('ancestor(%ld, %d)', base, dest).first()
rebaseset = repo.revs('(%d::(%ld) - %d)::',
commonanc, base, commonanc)
if not rebaseset:
# transform to list because smartsets are not comparable to
# lists. This should be improved to honor lazyness of