name: security

on:
  push:
    branches: [main]
  pull_request:
  schedule:
    - cron: "0 6 * * 1" # weekly Monday 06:00 UTC
  workflow_dispatch:

permissions:
  contents: read

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

jobs:
  # Supply-chain: RUSTSEC advisories (known CVEs), license policy, banned/duplicate crates.
  cargo-deny:
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        checks: [advisories, licenses, bans, sources]
    steps:
      - uses: actions/checkout@v7
      - uses: EmbarkStudios/cargo-deny-action@v2
        with:
          command: check ${{ matrix.checks }}
    # cargo-deny "advisories" uses the same RUSTSEC database as cargo-audit and is the
    # single source of truth for the ignore policy (see deny.toml). A separate cargo-audit
    # job is intentionally omitted to avoid maintaining two divergent ignore lists.

  # Block PRs that introduce dependencies with known vulnerabilities or bad licenses.
  dependency-review:
    if: github.event_name == 'pull_request'
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v7
      - uses: actions/dependency-review-action@v5
        with:
          fail-on-severity: high

  # OpenSSF Scorecard — supply-chain security posture of the repo itself.
  scorecard:
    if: github.event_name != 'pull_request'
    runs-on: ubuntu-latest
    permissions:
      security-events: write
      id-token: write
    steps:
      - uses: actions/checkout@v7
        with:
          persist-credentials: false
      - uses: ossf/scorecard-action@v2.4.3
        with:
          results_file: results.sarif
          results_format: sarif
          publish_results: true
      - uses: github/codeql-action/upload-sarif@v4
        with:
          sarif_file: results.sarif