ci.yml

name: native-app-examples

on:
  pull_request:
    types:
      - opened
      - edited
      - labeled
      - unlabeled
      - synchronize

permissions:
  contents: read

jobs:          
  build:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        include:
          - environment-file: shared_python_ci_env.yml
    defaults:
      run:
        shell: bash -l {0}
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: ${{ github.event_name == 'pull_request' && 2 || 0 }}
      - name: Set up Python 3.10
        uses: actions/setup-python@v3
        with:
          python-version: "3.10"
      - name: Get changed files
        id: changed-files
        run: |
            if ${{ github.event_name == 'pull_request' }}; then
                echo "changed_files=$(git diff --name-only -r HEAD^1 HEAD | xargs)" >> $GITHUB_OUTPUT
            else
                echo "changed_files=$(git diff --name-only ${{ github.event.before }} ${{ github.event.after }} | xargs)" >> $GITHUB_OUTPUT
            fi
      - name: Determine tests to run
        uses: actions/github-script@v7
        id: tests_to_run
        env:
          CHANGED_FILES: ${{ steps.changed-files.outputs.changed_files }}
        with:
          script: |
            const { CHANGED_FILES } = process.env;
            const fs = require('fs');
            const path = require('path');

            function getPytestPaths(dir, callback) 
            {
              const files = fs.readdirSync(dir, { withFileTypes: true });
              for (const file of files) 
              {
                if (file.isDirectory()) 
                {
                  getPytestPaths(path.join(dir, file.name), callback);
                } 
                else
                {
                  extension = path.extname(file.name);

                  if (extension == '.py')
                  {
                    callback(dir);
                  }
                }
              }
            }

            const paths = new Set(CHANGED_FILES.split(" ")
                          .map(x => x.substring(0, x.indexOf("/") + 1))
                          .filter(x => x.length > 0 && !x.startsWith('.')));
            
            const pytestPaths = new Set()
            const pytestArgs = new Set()
            for (const rootPath of paths) 
            { 
              let count = 0;
              getPytestPaths(rootPath, x => 
              {
                pytestPaths.add(x);
                count++
              })

              if (count > 0)
              {
                pytestArgs.add(rootPath)
              }
            }
            
            core.setOutput('pytestPaths', [...pytestPaths].join(' '));
            core.setOutput('pytestArgs', [...pytestArgs].join(' '));

      - name: Setup test environment
        uses: conda-incubator/setup-miniconda@v2
        with:
            environment-file: ${{ matrix.environment-file }}
      - name: Install dependencies
        run: |
              printf "[pytest]\npythonpath=${{ steps.tests_to_run.outputs.pytestPaths }}" > pytest.ini
              python -m pip install pytest
      - name: Run tests
        run: |
          args=${{ steps.tests_to_run.outputs.pytestArgs }}
          pythonpath=${{ steps.tests_to_run.outputs.pytestPaths }}
          if [ -z "${args}" ] || [ -z "${pythonpath}" ]; then
            echo “Nothing to test”
          else
            pytest $args
          fi