How do I merge a bulk number of commits at a time in GIT?

Question

How do I merge a large number of commits in phases of, say, 20 commits at a time?

Answer 1

git merge accepts any commit specification, so you can do:

git merge ...
git merge origin/master~60
git merge origin/master~40
git merge origin/master~20
git merge origin/master

or even git merge 357a887 to merge everything up to commit 357a887...