comparison mercurial/merge.py @ 18985:a59e575c6ff8

update: allow dirty update to foreground (successors)

Update to "foreground" are no longer seen as cross branch update. "Foreground"
are descendants or successors (or successors of descendants (or descendant of
successors (etc))). This allows to update with uncommited changes that get
automatically merged.

This changeset is a small step forward. We want to allow dirty update to
"background" (precursors) and takes obsolescence in account when finding the
default update destination. But those requires deeper changes and will comes in
later changesets.

18984:efef056b1ae9

# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.

from node import nullid, nullrev, hex, bin
from i18n import _
import error, util, filemerge, copies, subrepo, worker, dicthelpers
import errno, os, shutil

class mergestate(object):
    '''track 3-way merge state of individual files'''

                if wc.sub(s).dirty():
                    raise util.Abort(_("outstanding uncommitted changes in "
                                       "subrepository '%s'") % s)

        elif not overwrite:
            if pa == p1 or pa == p2: # linear
                pass # all good
            elif wc.dirty(missing=True):
                raise util.Abort(_("crosses branches (merge branches or use"
                                   " --clean to discard changes)"))
            elif onode is None:
                raise util.Abort(_("crosses branches (merge branches or update"
                                   " --check to force update)"))
            else:
                # Allow jumping branches if clean and specific rev given
                pa = p1

        ### calculate phase
        actions = calculateupdates(repo, wc, p2, pa,
                                   branchmerge, force, partial, mergeancestor)

18985:a59e575c6ff8

# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.

from node import nullid, nullrev, hex, bin
from i18n import _
from mercurial import obsolete
import error, util, filemerge, copies, subrepo, worker, dicthelpers
import errno, os, shutil

class mergestate(object):
    '''track 3-way merge state of individual files'''

                if wc.sub(s).dirty():
                    raise util.Abort(_("outstanding uncommitted changes in "
                                       "subrepository '%s'") % s)

        elif not overwrite:
            if pa not in (p1, p2):  # nolinear
                dirty = wc.dirty(missing=True)
                if dirty or onode is None:
                    # Branching is a bit strange to ensure we do the minimal
                    # amount of call to obsolete.background.
                    foreground = obsolete.foreground(repo, [p1.node()])
                    # note: the <node> variable contains a random identifier
                    if repo[node].node() in foreground:
                        pa = p1  # allow updating to successors
                    elif dirty:
                        msg = _("crosses branches (merge branches or use"
                                " --clean to discard changes)")
                        raise util.Abort(msg)
                    else:  # node is none
                        msg = _("crosses branches (merge branches or update"
                                " --check to force update)")
                        raise util.Abort(msg)
                else:
                    # Allow jumping branches if clean and specific rev given
                    pa = p1

        ### calculate phase
        actions = calculateupdates(repo, wc, p2, pa,
                                   branchmerge, force, partial, mergeancestor)