CI using GitHub workflow

[AnHeuermann]

Test the OpenModelicaLibraryTesting Python scripts by running them on the PNlib (v2.2.0) with OpenModelica nightly and stable.

Resulting HTML files and sqlite are saved as artifacts. After downloading the HTML files can be viewed with

unzip nightly-PNlib.html -d html
python3 -m http.server -d html

[AnHeuermann]

@adrpo I think I already found an issue in the generated HTML done by https://github.com/OpenModelica/OpenModelicaLibraryTesting/blob/master/test.py#L825 generating:

<table><tr><th>Commit</th><th>Date</th><th>Author</th><th>Summary</th></tr><tr><td><a href="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/OpenModelica/OpenModelicaLibraryTesting/commit//f212828">f212828</a></td><td>2024-01-16 11:47:45 +0100</td><td>AnHeuermann</td><td>Unique names for artifacts</td></tr></table>

Or is it an issue with my test script?

[AnHeuermann]

On my fork this branch is running and passing the workflow, see https://github.com/AnHeuermann/OpenModelicaLibraryTesting/actions/runs/7542150646/job/20530331899.

One run takes about 6 minutes, we could add a tiny test library to the .github/ directory, but I didn't want to add unnecessary stuff.