osv-scanner-scheduled.yml

## Runs the Google OSV-scanner utility to detect known vulnerabilities.
## The scan is run on each PR/push and also periodically on each maintained branch
name: Open Source Vulnerabilities Scanner

on:
  pull_request:
  push:
  workflow_dispatch:
  schedule:
    - cron: 0 1 * * *

permissions:
  # Required to upload SARIF file to CodeQL.
  # See: https://github.com/github/codeql-action/issues/2117
  actions: read
  # Require writing security events to upload SARIF file to security tab
  security-events: write
  # Only need to read contents
  contents: read

jobs:
  schedule-scan:
    runs-on: ubuntu-latest
    if: github.event_name == 'schedule' && github.repository == 'erlang/otp'
    # if: github.event_name != 'workflow_dispatch' # used for testing
    outputs:
       versions: ${{ steps.get-versions.outputs.versions }}
    steps:
      - uses: actions/checkout@v4.2.1
      - id: get-versions
        name: Fetch latest 3 OTP versions
        run: |
          VSNs=$(grep -E 'OTP-[^.]+[.]0 :' otp_versions.table | awk '{ print $1 '} | head -3 | sed 's/[-.]/ /g' | awk '{print $2}')
          versions='["maint", "master"'
          for vsn in $VSNs; do
            versions="${versions}, \"maint-$vsn\""
          done
          versions="${versions}]"
          echo "versions=${versions}" >> "$GITHUB_OUTPUT"

  run-scheduled-scan:
    # Fan out and create requests to run OSV on multiple branches.
    # It always succeed: either it sends requests to branches that
    # can run 'scan-pr' (if the repo/branch contains this file) or
    # skips sending the request.
    needs: schedule-scan
    runs-on: ubuntu-latest
    strategy:
      matrix:
        type: ${{ fromJson(needs.schedule-scan.outputs.versions) }}
      fail-fast: false
    permissions:
      actions: write
    steps:
      - uses: actions/checkout@v4.2.1
        with:
          ref: ${{ matrix.type }}

      - name: Trigger Vulnerability Scanning
        env:
          GH_TOKEN: ${{ github.token }}
        if: ${{ hashFiles('.github/workflows/osv-scanner-scheduled.yml') != '' }}
        run: |
          gh api \
            --method POST \
            -H "Accept: application/vnd.github+json" \
            -H "X-GitHub-Api-Version: 2022-11-28" \
            /repos/${{ github.repository }}/actions/workflows/osv-scanner-scheduled.yml/dispatches \
            -f "ref=${{ matrix.type }}"

  scan-pr:
    # run-scheduled-scan triggers this job
    # PRs and pushes trigger this job
    if: github.event_name != 'schedule'
    uses: "google/osv-scanner-action/.github/workflows/osv-scanner-reusable.yml@v1.8.5"