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

[Fabian Stelzer <fs@gigacodes.de>]

On 24.10.21 23:14, Marco Beck wrote:
> 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.

If you only need to rarely change the key to sign with, the commands
usually have a direct parameter to do so:
git tag -s -u <keyid>
git commit -S<keyid>

Otherwise https://git-scm.com/docs/git-config#_conditional_includes
might be useful if you can store you private & work git in separate
directories or only have a few selected repos per identity. Put all your
defaults in your .gitconfig and use sth like:

[includeIf "gitdir:~/projects/work/"]
  path = ".gitconfig.work"

to override them.


Kind regards,
Fabian