phases: add a function to compute visible heads
This function will be used to hide secret changeset.
--- a/mercurial/phases.py Sun Dec 18 23:16:46 2011 +0100
+++ b/mercurial/phases.py Mon Dec 19 11:37:44 2011 +0100
@@ -236,6 +236,21 @@
finally:
lock.release()
+def visibleheads(repo):
+ """return the set of visible head of this repo"""
+ # XXX we want a cache on this
+ sroots = repo._phaseroots[2]
+ if sroots:
+ # XXX very slow revset. storing heads or secret "boundary" would help.
+ revset = repo.set('heads(not (%ln::))', sroots)
+
+ vheads = [ctx.node() for ctx in revset]
+ if not vheads:
+ vheads.append(nullid)
+ else:
+ vheads = repo.heads()
+ return vheads
+
def analyzeremotephases(repo, subset, roots):
"""Compute phases heads and root in a subset of node from root dict