name: get test environments
description: Inspect a Python project and generate a test environment matrix.
inputs:
  windows-env:
    description: Include a Windows environment with the latest Python version.
    required: false
    default: 'false'
  macos-env:
    description: Include a macOS environment with the latest Python version.
    required: false
    default: 'false'
  extra-envs:
    description: Add these additional environments to the output.
    required: false
    default: ''
outputs:
  matrix:
    description: A JSON list of test environments.
    value: ${{ steps.run.outputs.matrix }}
runs:
  using: composite
  steps:
    - name: get test environments
      id: run
      shell: bash
      run: python3 -Iu '${{github.action_path}}/run.py'