cwl2ogc

cwl2ogc converts CWL workflow/tool inputs and outputs into:

OGC API - Processes I/O descriptors
JSON Schema documents for those I/O definitions

This is useful when publishing CWL-based application packages through OGC API - Processes interfaces.

Why

The OGC API - Processes Deploy/Replace/Undeploy workflow requires a process description that exposes valid input and output metadata. cwl2ogc helps generate that description directly from CWL definitions.

Installation

pip install cwl2ogc

Python 3.10+ is required.

Quick Start (CLI)

Generate a process descriptor from a CWL document:

cwl2ogc tests/artifacts/cwl-types/inp.cwl \
  --workflow-id inp \
  --output process.json

Show command help:

cwl2ogc --help

Quick Start (Python API)

from cwl_utils.parser import load_document_by_uri
from cwl2ogc import BaseCWLtypes2OGCConverter

workflow = load_document_by_uri("tests/artifacts/cwl-types/inp.cwl#inp")
converter = BaseCWLtypes2OGCConverter(workflow)

inputs = converter.get_inputs()
outputs = converter.get_outputs()

inputs_json_schema = converter.get_inputs_json_schema()
outputs_json_schema = converter.get_outputs_json_schema()

Playground

Requirements:

docker
task

Run the published playground image:

task run-playground

Build and run the local playground image:

task run-playground-dev

Open http://127.0.0.1.

Development

Install development tooling with Hatch and run checks:

hatch run test:test-q
hatch run dev:check
hatch run dev:lint

Equivalent Taskfile targets:

task test
task check
task lint

Documentation

Project docs: https://eoap.github.io/cwl2ogc/

CLI docs: docs/cli.md

Contributing

Issues and pull requests are welcome: https://github.com/eoap/cwl2ogc/issues

Local quality checks

Install Hatch and Taskfiles then install the Git hook:

task quality:pre-commit:install

Every commit runs Ruff (including the configured McCabe complexity limit), Ruff formatting, strict mypy checks, and the pytest suite. Run the complete hook explicitly with:

task quality:pre-commit:run

License

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- Permalink: eoap/cwl2ogc@7c54aec06da95b33409e5f0208484e6aafdc18b6
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