Mercurial > public > mercurial-scm > hg-stable
diff mercurial/revset.py @ 17173:c621f84dbb35
obsolete: compute extinct changesets
`extinct` changesets are obsolete changesets with obsolete descendants only. They
are of no interest anymore and can be:
- exclude from exchange
- hidden to the user in most situation
- safely garbage collected
This changeset just allows mercurial to detect them.
The implementation is a bit naive, as for unstable changesets. We better use a
simple revset query and a cache, but simple version comes first.
| author | Pierre-Yves David <pierre-yves.david@ens-lyon.org> |
|---|---|
| date | Fri, 06 Jul 2012 19:34:09 +0200 |
| parents | 9c750c3e4fac |
| children | 2c7c4824969e |
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--- a/mercurial/revset.py Tue Jul 10 01:39:03 2012 +0200 +++ b/mercurial/revset.py Fri Jul 06 19:34:09 2012 +0200 @@ -568,6 +568,13 @@ pc = repo._phasecache return [r for r in subset if pc.phase(repo, r) == phases.draft] +def extinct(repo, subset, x): + """``extinct()`` + obsolete changeset with obsolete descendant only.""" + getargs(x, 0, 0, _("obsolete takes no arguments")) + extinctset = set(repo.revs('(obsolete()::) - (::(not obsolete()))')) + return [r for r in subset if r in extinctset] + def extra(repo, subset, x): """``extra(label, [value])`` Changesets with the given label in the extra metadata, with the given @@ -1365,6 +1372,7 @@ "descendants": descendants, "_firstdescendants": _firstdescendants, "draft": draft, + "extinct": extinct, "extra": extra, "file": hasfile, "filelog": filelog,