I'm trying to build a Scala project with Pants, but I'm having trouble fetching dependencies from our artifact repository using jvm_artifact. How can I add an artifact repository, along with its credentials, to a pants build?

Pants uses Coursier to fetch jars. Credentials should be handled by Coursier. https://get-coursier.io/docs/other-credentials

Apparently the same applies to Repositories

Pants could probably be better in exposing Coursier features in Pants. If setting Coursier config has limitations, please open an issue.

Well it seems I need to use an env variable to configure the repos, which isn't great because I can't check those into version control without additional ceremony

Pants already seems to support setting the repositories: https://www.pantsbuild.org/docs/reference-coursier#repos

oh, cool

It would be straightforward to add other options for Coursier invocations. (I.e., add an option to the

coursier

subsystem in Pants and then make sure to pass those options to the

cs

invocation.

Yes, but before I get involved in Pants development, I want to make sure it's actually a useful and pleasant to use tool.

yeah the name is unfortunate. and it was chosen 10+ years ago at Twitter when v1 was written there.

So I set that COURSIER_CREDENTIALS env variable, and

cs fetch

is now able to download the artifact. But I still get

unauthorized

messages from

pants generate-lockfiles

. So it seems like the env variable gets lost somewhere along the way

You can set a property file.

~/.config/coursier/credentials.properties

macOS:

~/Library/Application Support/Coursier/credentials.properties

I've tried that too and it also didn't work.