comparison hgext/rebase.py @ 44346:b42ce825308e

rebase: stop relying on having two parents to resume rebase

I'm about to make it so we don't have two parents when a rebase is
interrupted (unless we're just rebasing on a merge commit). The code
for detecting if we're resuming a rebase relied on having two parents,
so this patch rewrites that to instead set a boolean when we resume.

Note that `self.resume` in the new condition implies `not
self.inmemory` (rebase cannot be resumed in memory), so that's why
that part can be omitted.

Differential Revision: https://phab.mercurial-scm.org/D7826

44345:14d0e89520a2

        # unfiltered repo to avoid visibility issues.
        # Before knowing rebasestate (i.e. when starting a new rebase (not
        # --continue or --abort)), the original repo should be used so
        # visibility-dependent revsets are correct.
        self.prepared = False
        self._repo = repo

        self.ui = ui
        self.opts = opts
        self.originalwd = None

        skippedset.update(self.obsoletewithoutsuccessorindestination)
        skippedset.update(obsoleteextinctsuccessors)
        _checkobsrebase(self.repo, self.ui, obsoleteset, skippedset)

    def _prepareabortorcontinue(self, isabort, backup=True, suppwarns=False):
        try:
            self.restorestatus()
            self.collapsemsg = restorecollapsemsg(self.repo, isabort)
        except error.RepoLookupError:
            if isabort:

                self.destmap,
                self.state,
                self.skipped,
                self.obsoletenotrebased,
            )
            if not self.inmemory and len(repo[None].parents()) == 2:
                repo.ui.debug(b'resuming interrupted rebase\n')
            else:
                overrides = {(b'ui', b'forcemerge'): opts.get(b'tool', b'')}
                with ui.configoverride(overrides, b'rebase'):
                    stats = rebasenode(
                        repo,

44346:b42ce825308e

        # unfiltered repo to avoid visibility issues.
        # Before knowing rebasestate (i.e. when starting a new rebase (not
        # --continue or --abort)), the original repo should be used so
        # visibility-dependent revsets are correct.
        self.prepared = False
        self.resume = False
        self._repo = repo

        self.ui = ui
        self.opts = opts
        self.originalwd = None

        skippedset.update(self.obsoletewithoutsuccessorindestination)
        skippedset.update(obsoleteextinctsuccessors)
        _checkobsrebase(self.repo, self.ui, obsoleteset, skippedset)

    def _prepareabortorcontinue(self, isabort, backup=True, suppwarns=False):
        self.resume = True
        try:
            self.restorestatus()
            self.collapsemsg = restorecollapsemsg(self.repo, isabort)
        except error.RepoLookupError:
            if isabort:

                self.destmap,
                self.state,
                self.skipped,
                self.obsoletenotrebased,
            )
            if self.resume and self.wctx.p1().rev() == p1:
                repo.ui.debug(b'resuming interrupted rebase\n')
                self.resume = False
            else:
                overrides = {(b'ui', b'forcemerge'): opts.get(b'tool', b'')}
                with ui.configoverride(overrides, b'rebase'):
                    stats = rebasenode(
                        repo,