- This is apparently "more in-keeping with how we do required arguments
(never requiring flags)" across Homebrew.
- New usage: `brew contributions me@issyl0.co.uk all`, `brew
contributions me@issyl0.co.uk brew,core`
- I got these with hash syntax because I couldn't figure out Sorbet, but
there's `args.rbi` to add the CLI args methods to. Nice!
- In doing this I realised that `--repositories` is required again, we
no longer infer `--repositories=all` from no `--repositories` passed
as we did in a previous version of this.
- This way we can do the more intuitive:
```
$ brew contributions --repos=brew,core rslpolster@gmail.com
Person rslpolster@gmail.com directly authored 1580 commits and co-authored 125 commits to brew, core in all time.
```
- Before each AGM it's currently a manual process for a PLC member to
search commit logs and GitHub to figure out who contributed to
Homebrew, so who should remain a member.
- I noticed that [looking at commits for a
user](https://github.com/Homebrew/homebrew-core/commits?author=issyl0&since=2022-01-01&until=2023-01-01)
would not count `Co-Authored-By`, which happens a lot now there's an
autosquash action on PRs in `Homebrew/homebrew-core`, say if someone
fixed a formula's build or tests or whatever and then the PR got
auto-merged.
- Here's `brew contributions` that uses `git log` to be able to go back
through all time or a specific time period (`--from`, `--to`). It's up
to individual PLC discretion for "activity", but it does at least go
some way to automating the data retrieval.
- Example (I can use my username as `--email` because my username is in
all of the email addresses that I use for committing to Homebrew):
```
$ brew contributions --email=issyl0 --repos=brew,core
Person issyl0 directly authored 732 commits and co-authored 31 commits to brew, core in all time.
```
