manage 2 git users gpg key and choose gpg sign per user

Question

I have 1 github user and another gitlab user, and I have created 1 gpg key for each because my email address differs.

The problem is I have to execute git config --global user.signingkey everytime I want to commit to different git repos.

Is there a way I can manage my gpg keys per git user?

Answer 1

I have the same situation but with splitting of work/personal accounts. And I have a lot of repositories but I don't want to run git config everytime I clone something new.

I have written a blog post about it. A way to do this automatically is to use the includeIf directive provided by git. You can read more about it from the Conditional Include section in git manual.

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There's a small requirement tho, you need to be able to tell apart github repositories from your gitlab repositories by a component in your path (for example, put github clones in ~/github and gitlab clones in ~/gitlab)

Then, basically, split the signing key configuration into two files:

# config.github
[user]
  name       = Chakrit
  email      = [email protected]
  signingkey = DEADBEEF

# config.gitlab
[user]
  name       = Chakrit
  email      = [email protected]
  signingkey = BADC0FFEE

And then in your main ~/.config/git/config configuration file, use the includeIf gitdir: directive to match and include different files based on your WD:

# when working with github
[includeIf "gitdir:**/github/**/.git"]
  path = config.github

# when working with gitlab
[includeIf "gitdir:**/gitlab/**/.git"]
  path = config.gitlab

Then all repos in your ~/github folder will automatically use your github key and repos in your ~/gitlab folder will use your gitlab keys.