id in CommandLineTool causes dot graph to not be printed correctly

cwltool --print-dot workflow.cwl produces an empty output if CommandLineTool has an id field. I was not able to identify a further root cause, but If the id field is removed, than --print-dot works correctly as expected.

Expected Behavior

digraph {compound=true
"workflow_with_id.cwl#my_step" [label="my_step"]
}%

this is the expected graph. This is what gets correctly printed if I remove the id root field from the my_step.cwl file

Actual Behavior

digraph {compound=true
}%

Workflow Code

workflow:

class: Workflow
cwlVersion: v1.0
requirements:
- class: StepInputExpressionRequirement
- class: InlineJavascriptRequirement
- class: MultipleInputFeatureRequirement

inputs:
  foo: string

outputs:
  bar:
    type: string
    outputSource: my_step/bar

steps:
  my_step:
    run: ./my_step.cwl
    in:
      foo:
        source: foo
    out: [bar]

step:

class: CommandLineTool
cwlVersion: v1.0
id: my_step
baseCommand:
  - echo
inputs:
  foo: string
outputs:
  bar:
    type: string

Your Environment

1.0.20190915164430

[mr-c]

@itajaja With more recent versions of cwltool and schema-salad it seems your issue have been fixed!

[itajaja]

Thanks for looking into this 🙏 what if the name is not set though?