D6163: copies: extract function for deciding whether to use changeset-centric algos

[pulkit (Pulkit Goyal)]

pulkit added inline comments.

INLINE COMMENTS

> martinvonz wrote in copies.py:163
> Or maybe there's another name that would work? Maybe `usecontextbasedalgo`? Or `shouldgetcopiesfromcontext`? Other suggestions?

I don't have any concerns on name in specific. I was trying to work around https://phab.mercurial-scm.org/D2010 in the above suggestion.

REPOSITORY
  rHG Mercurial

REVISION DETAIL
  https://phab.mercurial-scm.org/D6163

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