Convert to reusable action

[LFISHER7]

I'd like to convert my study into a reusable action. My study is in this repo:

https://github.com/opensafely/project-dag

[iaindillingham]

Thanks, @LFISHER7. I've added this issue to the board. You can follow progress there.

[lucyb]

@sebbacon has suggested making this into a reusable GitHub Action that would be run whenever a project.yaml has changed. How would you both feel about that, would it be more useful there?

[iaindillingham]

That seems like a good idea. Where would we surface the diagram? (Or is that TBD?)

[LFISHER7]

Yes, that sounds good. I think the most useful place to surface it is in the readme, which I think means outputting the diagram as an image rather than md

[lucyb]

Could you just save it as a CI workflow artefact to start with? Would people know to look there?

[LFISHER7]

I don't think they would. If it isn't fully automated then I don't think there's sufficient value add over a reusable action

[lucyb]

Jon has also suggested this could be an option in the CLI. However, we've decided that we'll create the reusable action and use that to learn more about how we might use this feature in future.

[iaindillingham]

There's a short Slack thread.¹

Footnotes

1. https://bennettoxford.slack.com/archives/C069SADHP1Q/p1708956506714339 ↩

[iaindillingham]

I've converted this to a reusable action, @LFISHER7. v0.0.1 was tagged automatically; for more information, please see DEVELOPERS.md.

[LFISHER7]

Thanks for doing this