Feat: include co-authors

[scottrigby]

Problem

contrib.rocks is great for improving community visibility! However, co-authors are not currently included.

Addtl info

A common way to attribute a Git commit to multiple authors is to use the Co-authored-by Git commit trailer. For example, see this commit message.

GitHub contributors graph supports this:

• Creating a commit with multiple authors
• Viewing a project's contributors (including commit co-authors)

Proposed solution

IDK if GitHub API has an acceptable way to do this only using the API.

I know we can get the Co-authored-by commit trailer content –  something like this:

$ {
    git log --pretty="%an <%ae>";
    git log --pretty="%(trailers:key=Co-authored-by,valueonly,only)" | awk NF;
  } | sort | uniq

Person 1 <[email protected]>
Person 2 <[email protected]>
Person 3 <[email protected]>

Once you get the emails, you could search for a GitHub user account matching each with https://docs.github.com/en/rest/search#search-users.