Re: [PATCH] gpg-interface: allow selecting key id with env variable

On Sun, Oct 24, 2021 at 01:35:04PM -0700, Junio C Hamano wrote:

Can you explain why we want to add another way to specify the key?

Motivation for that patch was that I usually use the same .gitconfig
(all dotfiles actually) with multiple identities (e.g. company and private
email address). It's really convenient to switch to a different identity
for the rest of the session by just setting e.g. $GIT_AUTHOR_EMAIL and not
needing to remember adding --author to every invocation of git-commit(1)
etc. Thought it would be nice to have that convenience for selecting a
signing key as well.