How to specify to only lint on new changes?

[kortschak]

This used to exist in the golangci.com default configuration, but it's entirely unclear how to achieve this with the GitHub action. I've tried using the .golangci.yml configuration adapted from the YAML here, to no avail; I'd like to just leave it as default except for this.

issues:
  new: true

[jirfag]

Hi,
I'm not sure should it be enabled by default or not. It's planned.

[kortschak]

Until then, is there a way to achieve the outcome via configuration?

[jirfag]

I guess something like this:

args: --new-from-rev origin/master

[kortschak]

That doesn't seem to work https://github.com/gonum/gonum/pull/1328/checks?check_run_id=696172335

As we do when we do travis builds, the action does a shallow clone --depth=1, which means that golangci-lint doesn't have any knowledge of what origin/master is. When we do the golangci-lint at travis, we go to additional effort to get the needed references to be able to perform the complete PR-specific linting. This is here.

Using the fetch-depth arg for the checkout action does not help, presumably because origin/master is not the correct commit to compare (I don't remember the experiments I went though to get the check-lint.sh script to work properly).

[jirfag]

we've supported only-new-issues