Badge request: From AppVeyor build artifact

[AArnott]

I'd like to display badges based on the contents of an AppVeyor build's artifact files. The build would drop special text files which AppVeyor would report as artifacts. These text files would contain just one line of text:

<SUBJECT>-<STATUS>-<COLOR>

The artifact filenames would follow some agreed upon convention such as SOMENAME.shield.

The shield could then be displayed via a URL like this:
https://img.shields.io/appveyor/ci-artifact/USERNAME/PROJECT/SOMENAME.svg

See dotnet/pinvoke#24 for a full description of what we want to create.

[espadrine]

I don't know exactly how AppVeyor's API allows to fetch artifacts, but that is definitely an interesting use-case. A difficult aspect of this is to convey how it works to others from the main page.

[AArnott]

Thanks for reviewing, @espadrine. And I appreciate that your model is so simple that each use generally needs just a one line description. That's fantastic.

If you're agreeable to this design, can you tell us what timeline it might be implemented in, or whether you'd entertain a pull request that adds the functionality?

[espadrine]

@AArnott It would take me at least a few months to get to implementing this, as most of the time I have dedicated to shields.io is spent on sysadmin, maintaining existing APIs that weather down or hit unexpected limits, and reviewing PRs. I would absolutely entertain a PR that adds the functionality. It may need work in try.html to have an explanation in the dialog box.

[AArnott]

Thanks, @espadrine.

[paulmelnikow]

The Endpoint badge #2838 provides a building block for this.