Could GIT_TOGETHER_GLOBAL be an environment variable?

[cwlbraa]

see https://github.com/pivotal/git-author/issues/22 for a full reproduction of the real issue in our development environment.

In multi-repo development environments (all of CF) we'd like to be able to set authors for all repos globally, every time. We also use git aliases heavily. git-author fits most of our needs, but leaves a small gap where using git with ab cd can set local repo state. Once that state is set, it frequently sticks around and sneaks into our commit messages. We'd like to effectively disable running git with without the --global flag, and it seems like an environment variable would make that really easy.

[kejadlen]

Makes sense - I'd been wanting to add a configuration for this in git's config, rather than an environment variable, though. You could set git-together.global to true or something in the global ~/.gitconfig to permanently turn it on and make it impossible to set a local git pair accidentally.