name: C/C++ CI

on:
  push:
    branches:
      - trying
      - staging
  pull_request:
    branches: [ master ]

jobs:
  build-and-check:

    env:
      # Force locale, in particular for reproducible results re '.github/bors_log_expected_warnings' (see below).
      LC_ALL: C.UTF-8

    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v2

    - name: Install Deps
      run: |
          sudo apt-get update;
          sudo apt-get install -y \
                  automake \
                  autoconf \
                  libtool \
                  autogen \
                  bison \
                  flex \
                  libgmp3-dev \
                  libmpfr-dev \
                  libmpc-dev \
                  build-essential \
                  gcc-multilib \
                  g++-multilib \
                  dejagnu

    - name: Configure
      run: |
           mkdir -p gccrs-build;
           cd gccrs-build;
           ../configure \
               --enable-languages=rust \
               --disable-bootstrap \
               --enable-multilib

    - name: Build
      shell: bash
      run: |
           cd gccrs-build; \
           make -Otarget -j $(nproc) 2>&1 | tee log

    - name: Check for new warnings
      run: |
           cd gccrs-build
           < log grep 'warning: ' | sort > log_warnings
           if diff -U0 ../.github/bors_log_expected_warnings log_warnings; then
               :
           else
               echo 'See <https://github.com/Rust-GCC/gccrs/pull/1026>.'
               exit 1
           fi >&2

    - name: Run Tests
      run: |
           cd gccrs-build; \
           make check-rust RUNTESTFLAGS="--target_board=unix\{-m32,-m64}"
    - name: Archive check-rust results
      uses: actions/upload-artifact@v2
      with:
        name: check-rust-logs
        path: |
          gccrs-build/gcc/testsuite/rust/
    - name: Check regressions
      run: |
           cd gccrs-build; \
           if grep -e "unexpected" -e "unresolved" -e "ERROR:" gcc/testsuite/rust/rust.sum;\
           then \
              echo "::error title=Regression test failed::some tests are not correct"; \
              perl -n ../.github/emit_test_errors.pl < gcc/testsuite/rust/rust.sum; \
              exit 1; \
            else \
              exit 0; \
            fi

  build-and-check-gcc-48:

    runs-on: ubuntu-18.04
    steps:
    - uses: actions/checkout@v2

    - name: Install Deps
      run: |
          sudo apt-get update;
          sudo apt-get install -y \
                  automake \
                  autoconf \
                  libtool \
                  autogen \
                  bison \
                  flex \
                  libgmp3-dev \
                  libmpfr-dev \
                  libmpc-dev \
                  build-essential \
                  gcc-4.8 \
                  g++-4.8 \
                  gcc-4.8-multilib \
                  g++-4.8-multilib \
                  dejagnu

    - name: Configure
      run: |
           mkdir -p gccrs-build;
           cd gccrs-build;
           ../configure \
               CC='gcc-4.8' \
               CXX='g++-4.8' \
               --enable-languages=rust \
               --disable-bootstrap \
               --enable-multilib

    - name: Build
      shell: bash
      run: |
           make -C gccrs-build -j $(nproc)

    - name: Run Tests
      run: |
           cd gccrs-build; \
           make check-rust

    - name: Archive check-rust results
      uses: actions/upload-artifact@v2
      with:
        name: check-rust-logs-4.8
        path: |
          gccrs-build/gcc/testsuite/rust/

    - name: Check regressions
      run: |
           cd gccrs-build; \
           if grep -e "unexpected" -e "unresolved" -e "ERROR:" gcc/testsuite/rust/rust.sum;\
           then \
              echo "::error title=Regression test failed::some tests are not correct"; \
              exit 1; \
            else \
              exit 0; \
            fi

  build-and-check-clang-macos:

    env:
      # Force CC/CXX to be explicitly clang to make it clear which compiler is used
      CC: clang
      CXX: clang++

    runs-on: macos-latest

    steps:
    - uses: actions/checkout@v2

    - name: Install Deps
      run: |
          brew install dejagnu mpfr libmpc gmp

    - name: Configure
      run: |
           mkdir -p gccrs-build;
           cd gccrs-build;
           ../configure \
               --enable-languages=rust \
               --disable-bootstrap \
               --enable-multilib \
               --with-native-system-header-dir=/usr/include \
               --with-sysroot=$(xcrun --show-sdk-path)

    - name: Build
      shell: bash
      run: |
           cd gccrs-build; \
           make -j $(sysctl -n hw.ncpu) 2>&1 | tee log

    - name: Run Tests
      run: |
           cd gccrs-build; \
           make check-rust
    - name: Archive check-rust results
      uses: actions/upload-artifact@v2
      with:
        name: check-rust-logs-macos
        path: |
          gccrs-build/gcc/testsuite/rust/
    - name: Check regressions
      run: |
           cd gccrs-build; \
           if grep -e "unexpected" -e "unresolved" -e "ERROR:" gcc/testsuite/rust/rust.sum;\
           then \
              echo "::error title=Regression test failed::some tests are not correct"; \
              exit 1; \
            else \
              exit 0; \
            fi