# tiny extension to report phase changes during transaction

from __future__ import absolute_import

def reposetup(ui, repo):

    def reportphasemove(tr):

        for revs, move in sorted(tr.changes[b"phases"], key=lambda r: r[0][0]):

            for rev in revs:

                if move[0] is None:

                    ui.write(

                        (

                            b'test-debug-phase: new rev %d:  x -> %d\n'

                            % (rev, move[1])

                        )

                    )

                else:

                    ui.write(

                        (

                            b'test-debug-phase: move rev %d: %d -> %d\n'

                            % (rev, move[0], move[1])

                        )

                    )

    class reportphaserepo(repo.__class__):

        def transaction(self, *args, **kwargs):

            tr = super(reportphaserepo, self).transaction(*args, **kwargs)

            tr.addpostclose(b'report-phase', reportphasemove)

            return tr

    repo.__class__ = reportphaserepo