Flow/.github/workflows/codeql.yml at main · PastaHimself/Flow · GitHub

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name: CodeQL

# Only Kotlin/Java sources and the build definition affect the analysis, so
# translation-only and documentation pushes are skipped. Unlike build.yml this
# workflow never runs on tags, so path filters here cannot skip a release.
on:
  push:
    branches: [ main ]
    paths:
      - '**/*.kt'
      - '**/*.java'
      - '**/*.gradle.kts'
      - 'gradle/libs.versions.toml'
      - '.github/workflows/codeql.yml'
  pull_request:
    branches: [ main ]
    paths:
      - '**/*.kt'
      - '**/*.java'
      - '**/*.gradle.kts'
      - 'gradle/libs.versions.toml'
      - '.github/workflows/codeql.yml'
  schedule:
    # Weekly, so newly published queries still run against a quiet main.
    - cron: '27 4 * * 1'
  workflow_dispatch:

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

permissions:
  contents: read

jobs:
  analyze:
    name: Analyze Kotlin/Java
    runs-on: ubuntu-latest
    timeout-minutes: 60
    permissions:
      security-events: write
      actions: read
      contents: read

    steps:
      - name: Checkout code
        uses: actions/checkout@v7

      - name: Set up JDK 17
        uses: actions/setup-java@v6
        with:
          java-version: '17'
          distribution: 'temurin'

      # Caching is disabled deliberately. CodeQL extracts Kotlin by observing
      # the compiler as it runs, so a cache hit that makes the compile tasks
      # UP-TO-DATE would produce an empty database and fail the analysis.
      - name: Set up Gradle
        uses: gradle/actions/setup-gradle@v6
        with:
          cache-disabled: true

      - name: Grant execute permission for gradlew
        run: chmod +x gradlew

      # build-mode "none" cannot be used here: buildless extraction supports
      # Java only and silently drops Kotlin, which is effectively this entire
      # codebase. Kotlin requires a real build.
      - name: Initialize CodeQL
        uses: github/codeql-action/init@v4
        with:
          languages: java-kotlin
          build-mode: manual

      - name: Build for extraction
        run: >
          ./gradlew :app:assembleGithubDebug
          --no-build-cache --stacktrace

      # The Gradle and Kotlin compile daemons stay resident after the build.
      # Left running, they hold enough heap that CodeQL's query evaluation --
      # which by default claims most of the runner's memory -- OOM-killed the
      # runner ("The runner has received a shutdown signal").
      - name: Stop Gradle and Kotlin daemons
        run: |
          ./gradlew --stop || true
          pkill -f KotlinCompileDaemon || true
          free -h || true

      - name: Perform CodeQL analysis
        uses: github/codeql-action/analyze@v4
        with:
          category: /language:java-kotlin
          # Explicit cap rather than the default "most of the runner", which
          # left no headroom on a 16 GB standard runner.
          ram: 10240
          threads: 4