codeql.yml

name: CodeQL

# Static analysis for the C# surface of this repo — runs on every push/PR to
# master plus a weekly schedule, so newly-added CodeQL query patterns get a
# chance to flag existing code, not just new diffs.
#
# Scoped to net10.0 on ubuntu-latest via CI_TFMS (the same mechanism
# ci.yml's ubuntu leg uses): CodeQL needs one successful build to extract
# from, and the platform TFMs (ios/android/macos/browser) need workloads
# and runners this leg doesn't have — build-platform-tfms.yml and
# release.yml already compile-check those separately.

on:
  push:
    branches: [master]
  pull_request:
    branches: [master]
  schedule:
    - cron: '24 3 * * 1' # weekly, Monday 03:24 UTC

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

jobs:
  analyze:
    name: Analyze (C#)
    runs-on: ubuntu-latest
    timeout-minutes: 20
    # Job-level permissions replace (not merge with) any workflow-level
    # block, so both grants live here even though only one job exists —
    # scoping them to the job that actually needs them, not the workflow.
    permissions:
      contents: read
      security-events: write
    env:
      CI_TFMS: net10.0
    steps:
      - name: Checkout
        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7
        with:
          persist-credentials: false

      - name: Setup .NET
        uses: actions/setup-dotnet@26b0ec14cb23fa6904739307f278c14f94c95bf1 # v5

      - name: Initialize CodeQL
        uses: github/codeql-action/init@54f647b7e1bb85c95cddabcd46b0c578ec92bc1a # v4
        with:
          languages: csharp

      - name: Restore
        run: dotnet restore

      - name: Build
        run: dotnet build TopSecret.ProtectedString.sln --configuration Release --no-restore

      - name: Perform CodeQL analysis
        uses: github/codeql-action/analyze@54f647b7e1bb85c95cddabcd46b0c578ec92bc1a # v4