.github/workflows/pipeline.yml

name: Pipeline


on:
  pull_request:
    branches: ['*']
    types: [opened, synchronize, reopened, labeled, unlabeled, ready_for_review, converted_to_draft, edited]

jobs:
  labels-for-repertoire-changes:
    name: Labels for repertoire changes
    outputs:
      repertoire-changed: ${{ steps.compare-repertoire.outputs.repertoire-changed }}
      pipeline-label: ${{ steps.check-labels.outputs.pipeline-label }}
    runs-on: ubuntu-latest
    steps:
    - name: Checkout merged UnicodeData.txt
      uses: actions/checkout@v3
      with:
        path: merged
        sparse-checkout: unicodetools/data/ucd/dev/UnicodeData.txt
    - name: Checkout base UnicodeData.txt
      uses: actions/checkout@v3
      with:
        ref: ${{ github.event.pull_request.base.sha }}
        path: base
        sparse-checkout: unicodetools/data/ucd/dev/UnicodeData.txt
    - name: Compare repertoire
      id: compare-repertoire
      run: |
        # Look for changes affecting the first two fields of UnicodeData.txt (code point and name).
        sed 's/^\([^;]*;[^;]*\);.*$/\1/' merged/unicodetools/data/ucd/dev/UnicodeData.txt > merged-repertoire.txt
        sed 's/^\([^;]*;[^;]*\);.*$/\1/' base/unicodetools/data/ucd/dev/UnicodeData.txt > base-repertoire.txt
        if diff base-repertoire.txt merged-repertoire.txt
        then echo "repertoire-changed=false" >> "$GITHUB_OUTPUT"
        else echo "repertoire-changed=true" >> "$GITHUB_OUTPUT"
        fi
    - name: Checkout Python scripts
      uses: actions/checkout@v3
      with:
        sparse-checkout: py/pipeline-workflow
    - name: Check pipeline labels
      id: check-labels
      if: steps.compare-repertoire.outputs.repertoire-changed == 'true'
      run: python3 py/pipeline-workflow/compare-repertoire.py
  l2-document:
    needs: labels-for-repertoire-changes
    if: ${{ always() && needs.labels-for-repertoire-changes.outputs.repertoire-changed == 'true' }}
    name: Proposal document
    runs-on: ubuntu-latest
    steps:
    - name: Checkout Python scripts
      uses: actions/checkout@v3
      with:
        sparse-checkout: py/pipeline-workflow
    - name: Check L2 document
      run: |
        python3 py/pipeline-workflow/check-l2-document.py
  utc-decision:
    needs: labels-for-repertoire-changes
    if: needs.labels-for-repertoire-changes.outputs.repertoire-changed == 'true' && needs.labels-for-repertoire-changes.outputs.pipeline-label != 'pipeline-recommended-to-UTC'
    name: UTC decision
    runs-on: ubuntu-latest
    steps:
    - name: Checkout Python scripts
      uses: actions/checkout@v3
      with:
        sparse-checkout: py/pipeline-workflow
    - name: Check UTC decision
      run: python3 py/pipeline-workflow/check-utc-decision.py
  draft-unless-approved:
    needs: labels-for-repertoire-changes
    if: needs.labels-for-repertoire-changes.outputs.repertoire-changed == 'true'
    name: Draft unless approved
    runs-on: ubuntu-latest
    steps:
    - name: Checkout Python scripts and DerivedAge.txt
      uses: actions/checkout@v3
      with:
        sparse-checkout: |
          py/pipeline-workflow
          unicodetools/data/ucd/dev/DerivedAge.txt
    - name: Check draft status
      env:
        PIPELINE_LABEL: ${{ needs.labels-for-repertoire-changes.outputs.pipeline-label }}
      run: python3 py/pipeline-workflow/check-draft-status.py