codeql.yml

# SPDX-License-Identifier: MPL-2.0
# This workflow is managed by gh actions-lock.
name: CodeQL Security Analysis

on:
  push:
    branches: [main, master]
  pull_request:
    branches: [main, master]
  schedule:
    - cron: '0 6 1 * *'   # monthly 1st 06:00 UTC

# Estate guardrail: cancel superseded runs so re-pushes / rebased PR
# updates do not pile up queued runs against the shared account-wide
# Actions concurrency pool. Applied only to read-only check workflows
# (no publish/mutation), so cancelling a superseded run is always safe.
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

permissions:
  contents: read

jobs:
  analyze:
    runs-on: ubuntu-latest
    timeout-minutes: 20
    permissions:
      contents: read
      security-events: write
    strategy:
      fail-fast: false
      matrix:
        include:
          # Repo is pure Rust; CodeQL does not support Rust as a target.
          # We analyse `actions` (GitHub Actions workflow files) so the
          # SAST capability still adds value — workflow files are a real
          # supply-chain surface for this repo.
          - language: actions
            build-mode: none

    steps:
      - name: Checkout
        uses: actions/checkout@v6.0.2

      - name: Initialize CodeQL
        uses: github/codeql-action/init@v4.34.0
        with:
          languages: ${{ matrix.language }}
          build-mode: ${{ matrix.build-mode }}

      - name: Perform CodeQL Analysis
        uses: github/codeql-action/analyze@v4.34.0
        with:
          category: "/language:${{ matrix.language }}"