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Merge pull request #55 from databricks-industry-solutions/preview
Hotfixing issue with apply_ddl, adding unit + integration tests, improving logging and resilience, pinning databricks-sdk version
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‎.github/workflows/ci.yml‎

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name: CI Pipeline
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on:
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pull_request:
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branches: [main, master, preview]
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push:
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branches: [main, master, preview]
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workflow_dispatch:
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jobs:
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lint:
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name: Lint Code
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runs-on: ubuntu-latest
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steps:
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- name: Checkout code
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uses: actions/checkout@v4
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- name: Set up Python
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uses: actions/setup-python@v5
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with:
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python-version: "3.11"
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- name: Install Poetry
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uses: snok/install-poetry@v1
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with:
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version: 2.0.1
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- name: Install pre-commit
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run: pip install pre-commit
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- name: Run pre-commit checks
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run: pre-commit run --all-files
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continue-on-error: true # Don't fail the build, just report
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test-unit:
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name: Unit Tests (Python ${{ matrix.python-version }})
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runs-on: ubuntu-latest
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strategy:
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fail-fast: false
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matrix:
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python-version: ["3.10", "3.11"]
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steps:
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- name: Checkout code
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uses: actions/checkout@v4
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- name: Set up Python ${{ matrix.python-version }}
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uses: actions/setup-python@v5
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with:
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python-version: ${{ matrix.python-version }}
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- name: Install Poetry
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uses: snok/install-poetry@v1
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with:
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version: 2.0.1
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virtualenvs-create: true
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virtualenvs-in-project: true
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- name: Load cached venv
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id: cached-poetry-dependencies
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uses: actions/cache@v4
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with:
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path: .venv
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key: venv-${{ runner.os }}-py${{ matrix.python-version }}-${{ hashFiles('**/poetry.lock') }}
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restore-keys: |
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venv-${{ runner.os }}-py${{ matrix.python-version }}-
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- name: Install dependencies
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if: steps.cached-poetry-dependencies.outputs.cache-hit != 'true'
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run: poetry install --no-interaction --no-root
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- name: Install project
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run: poetry install --no-interaction
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- name: Run unit tests
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run: |
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poetry run pytest -v --tb=short --durations=10
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- name: Generate test summary
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if: always()
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run: |
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echo "## 🧪 Test Results - Python ${{ matrix.python-version }}" >> $GITHUB_STEP_SUMMARY
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echo "" >> $GITHUB_STEP_SUMMARY
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if [ ${{ job.status }} == 'success' ]; then
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echo "✅ All 190 unit tests passed!" >> $GITHUB_STEP_SUMMARY
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else
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echo "❌ Some tests failed" >> $GITHUB_STEP_SUMMARY
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fi
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echo "" >> $GITHUB_STEP_SUMMARY
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echo "**Test Coverage:**" >> $GITHUB_STEP_SUMMARY
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echo "- Streamlit App Logic: 91 tests" >> $GITHUB_STEP_SUMMARY
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echo "- Core Functionality: 99 tests" >> $GITHUB_STEP_SUMMARY
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echo "- Integration Tests: Excluded (run separately)" >> $GITHUB_STEP_SUMMARY
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test-coverage:
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name: Test Coverage
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runs-on: ubuntu-latest
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steps:
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- name: Checkout code
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uses: actions/checkout@v4
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- name: Set up Python
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uses: actions/setup-python@v5
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with:
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python-version: "3.11"
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- name: Install Poetry
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uses: snok/install-poetry@v1
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with:
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version: 2.0.1
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virtualenvs-create: true
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virtualenvs-in-project: true
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- name: Install dependencies
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run: |
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poetry install --no-interaction
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poetry add --group dev pytest-cov
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- name: Run tests with coverage
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run: |
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poetry run pytest --cov=src --cov=app --cov-report=term --cov-report=html
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continue-on-error: true
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- name: Upload coverage report
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uses: actions/upload-artifact@v4
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if: always()
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with:
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name: coverage-report
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path: htmlcov/
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retention-days: 30
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validate-config:
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name: Validate Configuration Files
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runs-on: ubuntu-latest
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steps:
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- name: Checkout code
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uses: actions/checkout@v4
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- name: Validate pyproject.toml
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run: |
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pip install poetry
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poetry check
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- name: Validate YAML files
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run: |
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pip install pyyaml
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python -c "import yaml, sys; [yaml.safe_load(open(f)) for f in ['databricks.yml', 'variables.yml', 'variables.advanced.yml'] if __import__('os').path.exists(f)]"
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summary:
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name: CI Summary
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runs-on: ubuntu-latest
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needs: [lint, test-unit, test-coverage, validate-config]
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if: always()
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steps:
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- name: Check results
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run: |
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echo "## 📊 CI Pipeline Summary" >> $GITHUB_STEP_SUMMARY
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echo "" >> $GITHUB_STEP_SUMMARY
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echo "| Job | Status |" >> $GITHUB_STEP_SUMMARY
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echo "|-----|--------|" >> $GITHUB_STEP_SUMMARY
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echo "| Lint | ${{ needs.lint.result }} |" >> $GITHUB_STEP_SUMMARY
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echo "| Unit Tests | ${{ needs.test-unit.result }} |" >> $GITHUB_STEP_SUMMARY
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echo "| Coverage | ${{ needs.test-coverage.result }} |" >> $GITHUB_STEP_SUMMARY
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echo "| Config Validation | ${{ needs.validate-config.result }} |" >> $GITHUB_STEP_SUMMARY

‎.github/workflows/integration-tests.yml‎

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name: Integration Tests
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# Integration tests run separately since they require Databricks environment
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# Trigger manually or on merge to main
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on:
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workflow_dispatch:
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inputs:
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databricks_host:
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description: "Databricks workspace URL"
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required: true
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databricks_token:
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description: "Databricks token (use secrets)"
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required: false
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push:
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branches: [main, master]
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paths:
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- "notebooks/integration_tests/**"
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jobs:
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integration-tests:
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name: Run Integration Tests
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runs-on: ubuntu-latest
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# Only run if Databricks credentials are available
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if: github.event_name == 'workflow_dispatch' || (github.event_name == 'push' && secrets.DATABRICKS_HOST != '')
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steps:
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- name: Checkout code
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uses: actions/checkout@v4
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- name: Set up Python
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uses: actions/setup-python@v5
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with:
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python-version: "3.11"
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- name: Install Poetry
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uses: snok/install-poetry@v1
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with:
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version: 2.0.1
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- name: Install dependencies
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run: poetry install --no-interaction
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- name: Set up Databricks environment
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env:
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DATABRICKS_HOST: ${{ github.event.inputs.databricks_host || secrets.DATABRICKS_HOST }}
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DATABRICKS_TOKEN: ${{ secrets.DATABRICKS_TOKEN }}
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run: |
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echo "DATABRICKS_HOST=$DATABRICKS_HOST" >> $GITHUB_ENV
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echo "DATABRICKS_TOKEN=$DATABRICKS_TOKEN" >> $GITHUB_ENV
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- name: Run integration tests
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run: |
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poetry run pytest notebooks/integration_tests/ -v --tb=short
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continue-on-error: true
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- name: Integration test summary
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if: always()
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run: |
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echo "## 🔗 Integration Test Results" >> $GITHUB_STEP_SUMMARY
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echo "" >> $GITHUB_STEP_SUMMARY
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if [ ${{ job.status }} == 'success' ]; then
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echo "✅ Integration tests passed!" >> $GITHUB_STEP_SUMMARY
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else
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echo "⚠️ Integration tests failed or were skipped" >> $GITHUB_STEP_SUMMARY
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echo "" >> $GITHUB_STEP_SUMMARY
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echo "**Note:** Integration tests require Databricks workspace access." >> $GITHUB_STEP_SUMMARY
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echo "Configure secrets: DATABRICKS_HOST and DATABRICKS_TOKEN" >> $GITHUB_STEP_SUMMARY
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fi

‎.github/workflows/unit-tests.yml‎

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name: Unit Tests
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on:
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pull_request:
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branches: [main, master, preview]
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push:
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branches: [main, master, preview]
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workflow_dispatch: # Allows manual triggering
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jobs:
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test:
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runs-on: ubuntu-latest
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strategy:
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matrix:
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python-version: ["3.11"] # Can add more versions like ["3.10", "3.11", "3.12"]
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steps:
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- name: Checkout code
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uses: actions/checkout@v4
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- name: Set up Python ${{ matrix.python-version }}
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uses: actions/setup-python@v5
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with:
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python-version: ${{ matrix.python-version }}
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- name: Install Poetry
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uses: snok/install-poetry@v1
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with:
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version: 2.0.1
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virtualenvs-create: true
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virtualenvs-in-project: true
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- name: Load cached venv
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id: cached-poetry-dependencies
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uses: actions/cache@v4
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with:
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path: .venv
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key: venv-${{ runner.os }}-${{ matrix.python-version }}-${{ hashFiles('**/poetry.lock') }}
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- name: Install dependencies
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if: steps.cached-poetry-dependencies.outputs.cache-hit != 'true'
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run: poetry install --no-interaction --no-root
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- name: Install project
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run: poetry install --no-interaction
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- name: Run unit tests
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run: |
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poetry run pytest -v --tb=short
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- name: Test Summary
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if: always()
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run: |
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echo "## Test Results" >> $GITHUB_STEP_SUMMARY
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echo "" >> $GITHUB_STEP_SUMMARY
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if [ $? -eq 0 ]; then
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echo "✅ All tests passed!" >> $GITHUB_STEP_SUMMARY
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else
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echo "❌ Some tests failed" >> $GITHUB_STEP_SUMMARY
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fi

‎.gitignore‎

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# Environment-specific config (not committed)
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*.env
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!example.env
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!example.env
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# AI-generated operational documentation
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# Only the index is version controlled
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docs/operations/*/
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!docs/operations/README.md

‎README.md‎

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1. **Clone the repo** into a Git Folder in your Databricks workspace
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```
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Create Git Folder → https://github.com/databricks-industry-solutions/dbxmetagen
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Create Git Folder → Clone https://github.com/databricks-industry-solutions/dbxmetagen
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```
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2. **Open the notebook**: `notebooks/generate_metadata.py`
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1. **Prerequisites**:
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- Databricks CLI installed and configured: `databricks configure --profile <your-profile>`
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- Python 3.9+, Poetry (for building the wheel)
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- Python 3.9+, Poetry (for building a wheel when using Databricks asset bundles)
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2. **Configure environment**:
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```bash
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### Configurations
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1. Most configurations that users should change are in variables.yml. There are a variety of useful options, please read the descriptions, I will not rewrite them all here.
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### Current status
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1. Tested on DBR 14.3, 15.4, and 16.4.
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1. Default settings currently create ALTER scripts and puts in a volume. Tested in a databricks workspace.
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1. Some print-based logging to make understanding what's happening and debugging easy in the UI.
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### Discussion points and recommendations:
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1. Throttling - the default PPT endpoints will throttle eventually. Likely this will occur wehn running backfills for large numbers of tables, or if you have other users using the same endpoint.
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## Current Status
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- Tested on DBR 16.4 LTS, 14.3 LTS, and 15.4 LTS, as well as the ML versions.
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- Serverless runtimes tested extensively but runtimes are less consistent.
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- Views only work on 16.4. Pre-16.4, alternative DDL is used that only works on tables.
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- Excel writes for metadata generator or sync_reviewed_ddl only work on ML runtimes. If you must use a standard runtime, leverage tsv.
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| requests>=2.25.0 | Apache | https://pypi.org/project/requests/ |
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| plotly>=5.0.0 | MIT | https://pypi.org/project/plotly/ |
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| deprecated | MIT | https://pypi.org/project/Deprecated/ |
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| grpcio | Apache | https://pypi.org/project/grpcio/ |
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**All packages are open source with permissive licenses** (Apache 2.0, MIT, BSD 3-Clause) that allow commercial use, modification, and redistribution.

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