As part of the nf-core hackathon, I’m putting together a Nextflow plugin for tracking provenance (called

nf-prov

). For an initial proof of concept, I’m starting with generating a simple list of published files. Later on, I plan on incorporating additional metadata to produce a richer JSON manifest (e.g. using information from the

meta.yml

file for each module). I’ve forked and adapted the

nf-quilt

plugin that @Ben Sherman and @p worked on. Unfortunately, I’m currently stuck. Briefly, I can see in the Nextflow log file that the plugin is being started, but as far as I can tell (using

log.warn()

, the observer methods aren’t being run. I’ve opened a draft PR in case someone has some time to spare for a review. For context, I’m a novice with Groovy, so it might be a really simple fix. Edit: ✅ This has been fixed. Shout out to Paolo!

🧵

Hi Bruno! extension classes should be added to the

extensions.idx

file

I believe I already have that, unless I messed up the format.

I see there's more info here 🙂

I did this

After adding a

nextflow.config

file, I got the expected output. Thanks!

prov {
	file = 'file-manifest.txt'
}