Currently we build our internal (pure Java ) nodes as a large multi-module maven project which produces a single update site at the end, and I wondered whether there is a (ideally simple!) way to build a set of Python-based nodes into the same update site directly - i.e. to effectively have the python nodes project as one of the modules maven builds and wraps into the update site?
(I know - you can try to take the boy out of Java universe, you can’t take the Java universe out of the boy…)
this is not possible. However, you can have dependencies in an extension A to another feature B. So when you install A, it will also install B.
From the Python side, you can see in the following link how to depend on some other feature and how it is defined in the knime.yml: https://docs.knime.com/latest/pure_python_node_extensions_guide/index.html#extension-setup
Does this answer your question? Don’t hesitate to ask further questions!
Adding a Python extension (or multiple) to your single build is not generally impossible. However, there is no readily available simple solution for it. During the “bundling” step of a Python extension with the script build_python_extension.py, we create a few eclipse plugins, fragments, a feature, and an update site and build them with maven. The plugins+fragments are
Fragments for each operating system containing the conda environment
You can use the flag --render-folder /path/to/a/directory to see which eclipse bundles are created.
Instead of generating all eclipse plugins, etc. during the build step you could just create them once and have all plugins that you need lying next to your other plugins and include them in your usual build.
Let me know if you are interested in going this route and if you need more information.
Hi - that definitely sounds interesting, so would definitely like to see a bit more on how you set that up. I had wondered about using the exec-maven-plugin to run that Python script.
That would also allow a *.tests plugin or fragment with testflows in which would run anyway I think as we do with our java nodes.
You can create mixed java + python extensions, this is meant for python + java extensions, you can add java extensions to the autogenerated python one.
It is not compatible with more than one feature, but it might be worth a try. For an example see here:
) nodes as a large multi-module maven project which produces a single update site at the end, and I wondered whether there is a (ideally simple!) way to build a set of Python-based nodes into the same update site directly - i.e. to effectively have the python nodes project as one of the modules maven builds and wraps into the update site?
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