Feature request: read git config from parent directory

Hello

I use the same machine for work and open-source contribution. In both cases, I deal with a lot of repositories. Depending on whether I commit for work or open-source activities, I must use a different mail address. I used to setup work address for each work repo in git local config, but this is no longer practical.

Since I use different directories for work and open-source, would it be possible for git to read irs config also from parent directories ? I.e. setup git to read config from ./.git/config then ../.gitconfig, ../../gitconfig until global ~/.gitconfig.

All the best