How to identify conflicting commits by hash during git rebase?

Question

When I encounter a merge conflict using git rebase, how can I identify the source of the conflict in terms of commits, rather than just file difference

Answer 1

During a git rebase which stops to resolve conflicts, the following command will show the conflicting commit (all of it, not just the conflicting files), that is, your commit currently being replayed/rebased onto the new base, regardless of where you are up-to:

git show $(< .git/rebase-apply/original-commit)

If you want to see only the conflicts for a specific conflicting file (the one you are resolving), in-isolation:

git show $(< .git/rebase-apply/original-commit) -- /path/to/conflicting/file

No cats were abused in the construction of this answer :).