name: "CodeQL"

on:
  workflow_dispatch:
  push:
    branches: [ main ]
  pull_request:
    # The branches below must be a subset of the branches above
    branches: [ main ]
  schedule:
    - cron: '21 18 * * 5'

jobs:

  # XXX this is mostly an inlined copy of the 'build' job in build.yml
  build_extractor_pack:
    strategy:
      matrix:
        os: [ubuntu-latest]

    runs-on: ${{ matrix.os }}

    steps:
      - uses: actions/checkout@v2
      - uses: actions/cache@v2
        with:
          path: |
            ~/.cargo/registry
            ~/.cargo/git
            target
          key: ${{ runner.os }}-rust-cargo-${{ hashFiles('**/Cargo.lock') }}
      - name: Check formatting
        run: cargo fmt --all -- --check
      - name: Build
        run: cargo build --verbose
      - name: Run tests
        run: cargo test --verbose
      - name: Release build
        run: cargo build --release
      - name: Generate dbscheme
        run: target/release/ql-generator
      - uses: actions/upload-artifact@v2
        with:
          name: ql.dbscheme
          path: ql/src/ql.dbscheme
      - uses: actions/upload-artifact@v2
        with:
          name: TreeSitter.qll
          path: ql/src/codeql_ql/ast/internal/TreeSitter.qll
      - uses: actions/upload-artifact@v2
        with:
          name: extractor-${{ matrix.os }}
          path: |
            target/release/ql-extractor
          retention-days: 1
  # XXX this is mostly an inlined copy of the 'package' job in build.yml
      - run: |
          mkdir -p ${PACK_DIR}
        env:
          PACK_DIR: ${{ runner.temp }}/pack

      - name: Pack
        working-directory: ${{ runner.temp }}/pack
        run: |
          mkdir -p ql
          cp -r "${CHECKOUT}/codeql-extractor.yml" "${CHECKOUT}/tools" "${CHECKOUT}/ql/src/ql.dbscheme" "${CHECKOUT}/ql/src/ql.dbscheme.stats" ql/
          mkdir -p ql/tools/linux64
          cp "${CHECKOUT}/target/release/ql-extractor" ql/tools/linux64/extractor
          chmod +x ql/tools/linux64/extractor
          zip -rq codeql-ql.zip ql
        env:
          CHECKOUT: ${{ github.workspace }}

      - uses: actions/upload-artifact@v2
        with:
          name: extractor-pack
          path: ${{ runner.temp }}/pack/codeql-ql.zip
          retention-days: 1

  analyze:
    name: Analyze
    needs: build_extractor_pack

    runs-on: ubuntu-latest

    permissions:
      actions: read
      contents: read
      security-events: write

    steps:
    - name: Download pack
      uses: actions/download-artifact@v2
      with:
        name: extractor-pack
        path: ${{ runner.temp }}/extractor-pack-artifact

    - name: Unzip pack
      run: |
        set -x
        mkdir "${PACKTMP}"
        cd "${PACKTMP}"
        unzip "${PACKARTIFACT}/*.zip" -d unzipped
        cp -r unzipped/ql "${PACK}"
      env:
        PACKTMP: ${{ runner.temp }}/extractor-pack-artifact.tmp
        PACKARTIFACT: ${{ runner.temp }}/extractor-pack-artifact
        PACK: ${{ runner.temp }}/extractor-pack

    - name: Checkout repository
      uses: actions/checkout@v2

    - name: Make config file
      run: |
        set -x
        echo "name: CodeQL config for QL" >> "${CONFIG_FILE}"
        echo "" >> "${CONFIG_FILE}"
        echo "disable-default-queries: true" >> "${CONFIG_FILE}"
        echo "" >> "${CONFIG_FILE}"
        echo "queries: " >> "${CONFIG_FILE}"
        echo "  - name: Standard queries" >> "${CONFIG_FILE}"
        echo "    uses: ${SUITE}" >> "${CONFIG_FILE}"
        cat "${CONFIG_FILE}"
      env:
        SUITE: ./ql/src/codeql-suites/ql-code-scanning.qls
        CONFIG_FILE: ./.custom-codeql-actions-config.yml

    - name: Hack codeql-action options
      run: |
        JSON=$(jq -nc --arg pack "${PACK}" '.resolve.extractor=["--search-path", $pack] | .database.init=["--search-path", $pack]')
        echo "CODEQL_ACTION_EXTRA_OPTIONS=${JSON}" >> ${GITHUB_ENV}
      env:
        PACK: ${{ runner.temp }}/extractor-pack

    - name: Initialize CodeQL
      uses: github/codeql-action/init@esbena/ql
      with:
        languages: ql
        db-location: ${{ runner.temp }}/db
        config-file: ./.custom-codeql-actions-config.yml

    - name: Perform CodeQL Analysis
      uses: github/codeql-action/analyze@esbena/ql
      with:
        results: ${{ runner.temp }}/results
        add-snippets: true

    - name: Upload db
      uses: actions/upload-artifact@v2
      with:
        name: db
        path: ${{ runner.temp }}/db
        retention-days: 1

    - name: Upload results
      uses: actions/upload-artifact@v2
      with:
        name: results
        path: ${{ runner.temp }}/results
        retention-days: 1