[WIP] Setup github actions

[jalving]

This PR will setup github actions

[jalving]

@fracek I can't seem to get tox to run in github-actions no matter what I try. I'm also having issues with my local machine running tox (likely my virtual environment). Are you able to pull this branch and at least check that tox will run?

I think there must be some interference between pyproject.toml, tox.ini, and setup.cfg. My understanding is that tox will parse the files in that order, but I'm not 100% sure.

You can merge what I have if you want. We still need to get tests working however.

[fracek]

Looks like tox-gh-actions expected tox to be invoked with tox and not python -m tox. Now the main issue is that ubuntu doesn't include the ipopt binary in their ipopt package.

[jalving]

@fracek I managed to get Ipopt working using the conda plugin. Now I get the following error from tox: ERROR: InvocationError for command /home/runner/work/OMLT/OMLT/.tox/py38/bin/pytest (exited with code 1)

It actually hits all the tests, and then errors out. I tried running very simple configuration files and still get this error. I switched back to the original config files I had working to at least run the tests.

On another note, I made some changes to get more tests passing. Notably:

• The relu formulation was failing for the keras tests. I was seeing cases where z < zhat which should not happen. I switched some constraints such that z > 0 and z > zhat is always enforced. You may want to verify relu.py.
• I added a scaling_object and input_bounds to the gbt model in order to get tests to pass. We should discuss how the scaling object and input bounds get passed around.
• One of the gbt tests still fails (test_formulation_with_categorical_variables). Can you verify the assertion statement?

[jalving]

Looks like tox fails if any one test fails. I commented out the failing gbt test for now. Just need to get codecov working now.

[jalving]

@fracek I think you have to setup the codecov account since I am not a member of cog-imperial

[codecov[bot]]

Codecov Report

:exclamation: No coverage uploaded for pull request base (main@481b54a). Click here to learn what that means. The diff coverage is n/a.

@@           Coverage Diff           @@
##             main       #7   +/-   ##
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  Coverage        ?   91.10%           
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  Files           ?       15           
  Lines           ?      854           
  Branches        ?      147           
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  Hits            ?      778           
  Misses          ?       51           
  Partials        ?       25           

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[fracek]

Now it should be working. Let me know if you want me to merge this.

[jalving]

Yeah, go ahead. I'll make a new PR to get the codecov badge on the readme