Create output file when generating resources with CLI

[adamrtalbot]

It would be useful to store a log of the generated resources when creating a platform item with seqerakit, so that we can re-use it later.

For an example, here I am adding a new compute environment and pipeline:

launch:
  - name: 'hello-world'
    workspace: 'myorg/myworkspace'
    pipeline: 'hello'

How do I fetch the results from this launch? If we generate an output structure similar to the input structure, we could do tw runs view on the output object, but currently seqerakit uses a fire-and-forget model.

Let's say we called the above yaml and added an output arg, we could store the outputs for future use.

seqerakit --output output.yml hello.yml

This may help with #83 as well as we could generate resources at creation time.

[ejseqera]

@adamrtalbot Is the output intended to be YAML or do you mean generate a log file that captures the stdout? Could you share a desired example?

seqerakit returns the CLI command invoked under the hood through the definitions provided in the YAML file.

[adamrtalbot]

A YAML, so we could re-use it as an input if we wanted to rerun the previous command e.g.

seqerakit hello-world.yml > hello-world-2.yml
hellow-world.yml == hello-world-2.yml