Add --target option to nf-test list

[drpatelh]

Hi @lukfor ! Thank you very much for getting the recent release out so quickly 🙏🏽 ! We have managed to simplify a lot of the nf-test code by implementing the functionality provided in #184

We are now finishing up with the CI and realised that we need 1 (famous last words!) more feature to help us run targeted tests in our CI/CD.

Following on from #187 would it be possible to have another option in nf-test list that returns the name of the --target component that is being tested, please?

For example, this would return:

1. SRATOOLS_FASTERQDUMP for this process test
2. FASTQ_DOWNLOAD_PREFETCH_FASTERQDUMP_SRATOOLS for this workflow test
3. isSraId for this function test

Ideally, we would also have the ability to select which component this returns. For example:

nf-test list --silent --format csv --target process <TEST_PATH>

nf-test list --silent --format csv --target workflow <TEST_PATH>

nf-test list --silent --format csv --target function EST_PATH>

The --target option could also be decoupled from the type of component being returned if that makes more sense on the implementation side.

At the moment, we are trying to use hacky bash to restrict the tags for testing but that's not a flexible solution....

Let us know what you think!!! This is literally the last thing (famous last words!!) we need for our standardised V2 nf-test release of nf-core/fetchngs

[adamrtalbot]

For what it's worth, I think we should have two args for nf-test list here:

--target
Returns the function/process/workflow name

This one could replace --tags as a new arg --output names/targets/tags to make it more generic.

--filter
Return only results relating to a function/process/workflow/pipeline

The second one could be used with nf-test test for some additional filtering. e.g. nf-test test --filter workflows will only test workflow level tests.

[lukfor]

Thanks, sounds good! I will try to find some time next week.

[kenibrewer]

This issue is covered by the --filter option (See https://www.nf-test.com/docs/cli/test/#-filter-types). Thanks again @lukfor !