runner property "environment" is not defined in object type

[acalcutt]

I am trying to use runner.environment in my workflow, which works. However actionlint gives me the following error

.github/workflows/node-ci.yml:168:13: property "environment" is not defined in object type {arch: string; debug: string; name: string; os: string; temp: string; tool_cache: string} [expression]
    |
168 |         if: runner.environment == 'github-hosted'

Researching the reason why I notice running.environment has not yet been documented.
https://github.com/orgs/community/discussions/118413
github/docs#32443
so I am wondering if that is related

[rhysd]

That's because it is undocumented. Once we understand it is a part of public API, we can easily add it to actionlint.

Previously there were several private context properties and such properties were removed silently. So undocumented properties are basically not recognized by actionlint.

https://docs.github.com/en/actions/learn-github-actions/contexts#runner-context

[rhysd]

According to github/docs#32443, it seems a public API. So I will add the property.

[acalcutt]

Thanks for including this!