infer_clone/.github/workflows/install.yml

name: Install

on:
  - push
  - pull_request

jobs:
  build:
    strategy:
      fail-fast: false
      matrix:
        os:
          - macOS-latest
          - ubuntu-latest
        ocaml-version:
          - 4.11.1

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

    steps:
      - name: Checkout code
        uses: actions/checkout@v2

      - name: Install Required Apt Packages for Ubuntu
        run: |
          sudo apt install libmpfr-dev libsqlite3-dev ninja-build
          sudo apt clean
        if: runner.os == 'Linux'

      - name: Install Required Brew Packages for MacOS
        run: brew install automake jq ninja pkg-config
        if: runner.os == 'macOS'

      - name: Compute hash of clang installation
        id: clang-hash
        run: |
          echo "::set-output name=value::$(./facebook-clang-plugins/clang/setup.sh --clang-hash)"

      - name: Attempt to get clang from the cache
        id: cache-clang
        uses: actions/cache@v2
        with:
          path: facebook-clang-plugins/clang/install
          key: clang-${{ runner.os }}-${{ steps.clang-hash.outputs.value }}

      - name: Record that the clang cache was hit
        if: steps.cache-clang.outputs.cache-hit == 'true'
        run: ./facebook-clang-plugins/clang/setup.sh --only-record-install

      - name: Build clang on cache misses
        if: steps.cache-clang.outputs.cache-hit != 'true'
        run: |
          ./facebook-clang-plugins/clang/src/prepare_clang_src.sh
          ./facebook-clang-plugins/clang/setup.sh --ninja --sequential-link

      - name: Attempt to get opam tree from the cache
        uses: actions/cache@v2
        with:
          path: ~/.opam
          key: opam-${{ runner.os }}-${{ hashFiles('opam.locked') }}

      - name: Use OCaml ${{ matrix.ocaml-version }}
        uses: avsm/setup-ocaml@v1
        with:
          ocaml-version: ${{ matrix.ocaml-version }}

      - run: ./build-infer.sh --yes all

      - run: make install
        if: runner.os == 'macOS'

      - run: sudo make install
        if: runner.os == 'Linux'

      - name: Test infer
        run: |
          eval $(opam env)

          {
            echo 'class FailingTest {'
            echo '  String mayReturnNull(int i) {'
            echo '    if (i > 0) {'
            echo '      return "Hello, Infer!";'
            echo '    }'
            echo '    return null;'
            echo '  }'
            echo '  int mayCauseNPE() {'
            echo '    String s = mayReturnNull(0);'
            echo '    return s.length();'
            echo '  }'
            echo '}'
          } > FailingTest.java

          {
            echo "  class PassingTest {"
            echo "    String mayReturnNull(int i) {"
            echo "      if (i > 0) {"
            echo '        return "Hello, Infer!";'
            echo "      }"
            echo "      return null;"
            echo "    }"
            echo "    int mayCauseNPE() {"
            echo "      String s = mayReturnNull(0);"
            echo "      return s == null ? 0 : s.length();"
            echo "    }"
            echo "  }"
          } > PassingTest.java

          # first command should exit with status 2
          infer --fail-on-issue -P -- javac FailingTest.java || if [[ $? -ne 2 ]]; then exit 1; fi
          infer --fail-on-issue -P -- javac PassingTest.java

          {
            echo "#include <stdio.h>"
            echo "int main()"
            echo "{ int *s = NULL; *s = 42; return 0; } "
          } > FailingTest.c

          {
            echo "#include <stdio.h>"
            echo "int main()"
            echo "{ int *s = NULL; if (s != NULL) { *s = 42; } return 0; }"
          } > PassingTest.c

          # first command should exit with status 2
          infer --fail-on-issue -P -- clang -c FailingTest.c || if [[ $? -ne 2 ]]; then exit 1; fi
          infer --fail-on-issue -P -- clang -c PassingTest.c