> This series takes another approach as it doesn't change the signature of
> functions, but introduces new functions that can deal with arbitrary
> repositories, keeping the old function signature around using a shallow
> wrapper.
>
> Additionally each patch adds a semantic patch, that would port from the old to
> the new function. These semantic patches are all applied in the very last
> patch,
> but we could omit applying the last patch if it causes too many merge
> conflicts
> and trickl in the semantic patches over time when there are no merge
> conflicts.
Thanks, this looks like a good plan.
One concern is that if we leave 2 versions of functions around, it will
be difficult to look at a function and see if it's truly
multi-repository-compatible (or making a call to a function that
internally uses the_repository, and is thus wrong). But with the plan
Stefan quoted [1], mentioned in commit e675765235 ("diff.c: remove
implicit dependency on the_index", 2018-09-21):
The plan is these macros will always be defined for all library files
and the macros are only accessible in builtin/
(The macros include NO_THE_REPOSITORY_COMPATIBILITY_MACROS, which
disables the single-repository function-like macros.) This mitigates the
concern somewhat.
[1] https://public-inbox.org/git/20181011211754.31369-1-sbel...@google.com/
