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86e119ea37
Summary: This allows the callsite to control what revs to rebase. Reviewed By: kulshrax Differential Revision: D15978954 fbshipit-source-id: 73174475411c3986f3a8e93a1a61ce5b857f454b
57 lines
2.2 KiB
Python
57 lines
2.2 KiB
Python
# restack.py - rebase to make a stack connected again
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#
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# Copyright 2013 Facebook, Inc.
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#
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# This software may be used and distributed according to the terms of the
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# GNU General Public License version 2 or any later version.
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from __future__ import absolute_import
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from edenscm.hgext import rebase
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from edenscm.mercurial import commands, revsetlang
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from edenscm.mercurial.i18n import _
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def restack(ui, repo, **rebaseopts):
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"""Repair a situation in which one or more commits in a stack
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have been obsoleted (thereby leaving their descendants in the stack
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orphaned) by finding any such commits and rebasing their descendants
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onto the latest version of each respective commit.
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"""
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rebaseopts = rebaseopts.copy()
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with repo.wlock(), repo.lock():
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# Find drafts connected to the current stack via either changelog or
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# obsolete graph. Note: "draft() & ::." is optimized by D441.
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if not rebaseopts["rev"]:
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# 1. Connect drafts via changelog
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revs = list(repo.revs("(draft() & ::.)::"))
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if not revs:
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# "." is probably public. Check its direct children.
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revs = repo.revs("draft() & children(.)")
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if not revs:
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ui.status(_("nothing to restack\n"))
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return 1
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# 2. Connect revs via obsolete graph
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revs = list(repo.revs("successors(%ld)+predecessors(%ld)", revs, revs))
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# 3. Connect revs via changelog again to cover missing revs
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revs = list(repo.revs("(draft() & ::%ld)::", revs))
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rebaseopts["rev"] = [revsetlang.formatspec("%ld", revs)]
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rebaseopts["dest"] = "_destrestack(SRC)"
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rebase.rebase(ui, repo, **rebaseopts)
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# Ensure that we always end up on the latest version of the
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# current changeset. Usually, this will be taken care of
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# by the rebase operation. However, in some cases (such as
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# if we are on the precursor of the base changeset) the
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# rebase will not update to the latest version, so we need
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# to do this manually.
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successor = repo.revs("successors(.) - .").last()
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if successor is not None:
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commands.update(ui, repo, rev=successor)
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