D6487: states: created new class to handle multi-step operation states

[martinvonz (Martin von Zweigbergk)]

martinvonz requested changes to this revision.
martinvonz added a comment.
This revision now requires changes to proceed.


  Can you squash the next two patches into this one? It's hard to review it in its current form, because you need to go back and forth between the first three patches to understand how the code was moved.

REPOSITORY
  rHG Mercurial

REVISION DETAIL
  https://phab.mercurial-scm.org/D6487

To: taapas1128, #hg-reviewers, martinvonz
Cc: martinvonz, pulkit, mercurial-devel