This action sets up the OpenModelica Compiler omc for use in actions on Linux and Windows runners. On Linux apt is used to install OpenModelica, on Windows the installer executable is used. Afterwards the OpenModelica Package manager installs Modelica libraries.

• version: Version of OpenModelica to install.
  • For example 'nightly', 'stable', 'release', '1.23' or '1.23.0'.
• architecture: Choose between 64 and 32 bit architecture. Can be '64' or '32'.
• packages: OpenModelica APT packages to install. Only used on Linux OS.
  • For example 'omc' for the OpenModelica Compiler or 'omsimulator' for OMSimulator. Use one package per line.
• libraries: Modelica libraries to install with the OpenModelica package manager.

  • One library per line with exact version number. Will install exact match only and all dependencies.

      libraries: |
        'Modelica 4.0.0'
        'Modelica 3.2.3'

✔️: Available ☑️: Available, but untested ❌: Not available

- uses: OpenModelica/[email protected]
  with:
    version: '1.23.1'
    packages: |
      'omc'
      'omsimulator'
    libraries: |
      'Modelica 4.0.0'
      'Modelica 3.2.3+maint.om'
    omc-diff: true

- uses: OpenModelica/[email protected]
  with:
    version: 'nightly'

- uses: OpenModelica/[email protected]
  with:
    version: 'stable'

This action is very slow, especially on Windows, see issue #36.

• Macos runners are not supported, because OpenModelica discontinued the Mac builds after version 1.16. It should be possible to build/install latest OpenModelica nightly for macOS, see this README:.
• OPENMODELICA home environment variable is only set on Windows. If you need it on Linux as well open an issue.

The tests will install all sorts of OpenModelica versions and tools. To prevent the installer from messing with your host system use the provided dockerfile or dev-container:

• Linux: .devcontainer/devcontainer.json
• Windows: .ci/dockerfile

To build and test run:

npm install
npm run build
npm run package
npm test

This action is licensed with the OSMC Public License v1.8, see OSMC-License.txt.

This package was initially developed by Hochschule Bielefeld - University of Applied Sciences and Arts as part of the Proper Hybrid Models for Smarter Vehicles (PHyMoS) project, supported by the German Federal Ministry for Economic Affairs and Climate Action with project number 19|200022G.