cve/.github/workflows/sync_metadata.yml

name: Sync CVE Metadata

on:
  schedule:
    - cron: '10 3 * * 1-6'
    - cron: '10 3 * * 0'
  workflow_dispatch:
    inputs:
      full:
        description: Rebuild NVD and the reviewed GitHub advisory cache
        required: false
        default: false
        type: boolean

permissions:
  contents: write

concurrency:
  group: repository-updates
  cancel-in-progress: false

jobs:
  sync:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repository
        uses: actions/checkout@v7

      - name: Set up Python
        uses: actions/setup-python@v7
        with:
          python-version: '3.13'

      - name: Pull CVSS, advisory and advisory PoC metadata
        env:
          GITHUB_TOKEN: ${{ github.token }}
        run: |
          if [ "${{ github.event.schedule }}" = "10 3 * * 0" ] || [ "${{ inputs.full }}" = "true" ]; then
            python3 scripts/sync_cve_metadata.py --full
          else
            python3 scripts/sync_cve_metadata.py
          fi

      - name: Refresh CISA known-exploited status
        run: python3 scripts/audit_poc_links.py --kev-only

      - name: Verify the generated index
        run: |
          python3 -m unittest discover -s tests
          python3 scripts/build_site.py

      - name: Check for changes and commit
        run: |
          git config user.name 'CVE-BOT'
          git config user.email '[email protected]'
          git add -- \
            cves/ \
            index/cve_dates.json \
            index/cve_record_state.json \
            index/github_advisories.json \
            index/kev.json \
            index/metadata/ \
            index/references.txt

          if git diff --cached --quiet; then
            echo "No changes to commit"
            exit 0
          fi

          git commit -m "Sync CVE metadata $(date -u +'%Y-%m-%d')"

          for attempt in 1 2 3; do
            if git push origin HEAD:main; then
              exit 0
            fi
            echo "Push rejected; replaying onto the current main (attempt $attempt)"
            git fetch --unshallow origin main 2>/dev/null || git fetch origin main
            git rebase FETCH_HEAD
          done
          exit 1