Cryptic error given when running hippunfold before hippunfold_download_models is run

[akhanf]

The error message is cryptic because of the generic copy_to_results rule, since any missing file for a rule ends up then checking that rule, where is ultimately fails..

I'd like to actually get rid of this generic rule, will make updating the workflow much easier.. was a lazy addition in the first place. I will also add some explicit checks on whether the trained models are downloaded already, and provide a useful warning if any are missing.

[akhanf]

By the way, this is the error message:

WorkflowError:
MissingInputException: Missing input files for rule copy_to_results:
    output: hippunfold/sub-001/surf/sub-001_hemi-L_space-T1w_den-0p5mm_label-hipp_surfaces.spec
    wildcards: file=sub-001/surf/sub-001_hemi-L_space-T1w_den-0p5mm_label-hipp_surfaces.spec
    affected files:
        work/sub-001/surf/sub-001_hemi-L_space-T1w_den-0p5mm_label-hipp_surfaces.spec
WorkflowError:
    MissingInputException: Missing input files for rule copy_to_results:
        output: hippunfold/sub-001/surf/sub-001_hemi-L_space-T1w_den-0p5mm_label-hipp_gyrification.shape.gii
        wildcards: file=sub-001/surf/sub-001_hemi-L_space-T1w_den-0p5mm_label-hipp_gyrification.shape.gii
        affected files:
            work/sub-001/surf/sub-001_hemi-L_space-T1w_den-0p5mm_label-hipp_gyrification.shape.gii
    WorkflowError:
        MissingInputException: Missing input files for rule copy_to_results:
            output: hippunfold/sub-001/surf/sub-001_hemi-L_space-T1w_den-0p5mm_label-hipp_surfarea.shape.gii
            wildcards: file=sub-001/surf/sub-001_hemi-L_space-T1w_den-0p5mm_label-hipp_surfarea.shape.gii
            affected files:
                work/sub-001/surf/sub-001_hemi-L_space-T1w_den-0p5mm_label-hipp_surfarea.shape.gii
        CyclicGraphException: Cyclic dependency on rule warp_gii_to_native.

[akhanf]

working on this in #194

[akhanf]

Closed with #194