I m about to write an `nfpm` plugin wrapping

Question

I m about to write an `nfpm` plugin wrapping <https nfpm goreleaser com > that provides an `nfpm package` target and can generate deb rpm and apk packages I want to get it into 2 17 as an experimental backend Do we have any tool backends that download static binaries in this case written in go So far I ve only written plugins around python tools

wide-midnight-78598 · Answer

Yep few different ways but here s a simple one <https github com sureshjoshi pants plugins blob main pants plugins experimental scie subsystems science py|https github com sureshjoshi pants plugins blob main pants plugins experimental scie subsystems science py>

wide-midnight-78598 · Answer

`ExternalTool` or `TemplatedExternalTool` I think there are some other options but this is what I typically use

proud-dentist-22844 · Answer

TemplatedExternalTool is just what I needed Thanks

proud-dentist-22844 · Answer

How does this work <https github com sureshjoshi pants plugins blob main pants plugins experimental scie subsystems science py L43> I don t see a `rules ` method on `TemplatedExternalTool`

proud-dentist-22844 · Answer

Oh It s on `Subsystem`

proud-dentist-22844 · Answer

But you don t register those rules anywhere

wide-midnight-78598 · Answer

Generally subsystem rules are registered when they re used in an rule method I like to manually register them as it just feels more correct However there is the chance that I forgot to place that subsystem rules in the register py as I copied the register file from elsewhere

wide-midnight-78598 · Answer

<https www pantsbuild org docs rules api subsystems defining options|https www pantsbuild org docs rules api subsystems defining options> Item 3 mentions it Was one of my earliest confusions Personally with stuff like registration I think we d be better served to remove the magic Implicit rule registration seems to be a big hiccup as you well know when we get into testing plugins where we then have to specify explicitly If I had my would rathers I would enforce rule registration for plugins declare what you use That way the tests should only need to grab your plugins ruleset and call it a day

proud-dentist-22844 · Answer

Yeah That would be a great change Figuring out graph errors which rules were not registered is so painful

wide-midnight-78598 · Answer

Unfortunately I think it s a bit of a maze right now with all the various rules in operation