Re: git should not use a default user.email config value

Jeff King [off-list ref] writes:

I guess we could do something like:

  [include "repo:...your regex here..."]
    path = .gitconfig-only-for-some-repos
  [include "env:USE_MY_MAGIC_CONFIG"]
    path = .gitconfig-only-when-magic-env-set

I am not sure if "env" is very useful, but there certainly are other
possibilities (e.g. apply this only on this host, only for members
of this UNIX group, etc.), so having "repo:" prefix even if we only
support the repository path mapping in the initial version is a good
way forward.

Thanks.