name: linux_build

# Run CI on push, PR, and weekly.

on:
  push:
  pull_request:
  schedule:
    - cron: "0 0 * * 0 " # weekly

# Environment variables
env:
  # Customize the CMake build type here (Release, Debug, RelWithDebInfo, etc.)
  BUILD_TYPE: Release
  MAKEFLAGS: "-j8"

# Multiple job to tests
jobs:
  change_detect:
    name: "Detect code changes"
    runs-on: ubuntu-18.04
    outputs:
      # this is output as string, see https://docs.github.com/en/actions/reference/workflow-syntax-for-github-actions#jobsjob_idoutputs
      source_modified: ${{ steps.changes.outputs.status_code == '1' }}
      force_upload: false
    steps:
      - name: Checkout OpenFPGA repo
        uses: actions/checkout@v2
        with:
          fetch-depth: 0
          submodules: true
      - name: Check for source code changes
        id: changes
        run: |
          git diff origin/master HEAD --name-status -- . ':!openfpga_flow' ':!docs'
          if git diff origin/master HEAD --name-status --exit-code -- . ':!openfpga_flow' ':!docs'; then
            echo "::set-output name=status_code::0"
          else
            echo "::set-output name=status_code::$?"
          fi
  # Test the compilation compatibility
  linux_build:
    needs: change_detect
    if: ${{ fromJSON(needs.change_detect.outputs.source_modified) || github.ref == 'refs/heads/master' }}
    name: ${{ matrix.config.name }}
    runs-on: ubuntu-18.04
    container: ghcr.io/lnis-uofu/openfpga-build-${{ matrix.config.cc}}
    # Branch on different OS and settings
    strategy:
      fail-fast: false
      matrix:
        config:
          - name: "Build Compatibility: GCC-5 (Ubuntu 18.04)"
            cc: gcc-5
            cxx: g++-5
          - name: "Build Compatibility: GCC-6 (Ubuntu 18.04)"
            cc: gcc-6
            cxx: g++-6
          - name: "Build Compatibility: GCC-7 (Ubuntu 18.04)"
            cc: gcc-7
            cxx: g++-7
          - name: "Build Compatibility: GCC-8 (Ubuntu 18.04)"
            cc: gcc-8
            cxx: g++-8
          - name: "Build Compatibility: GCC-9 (Ubuntu 18.04)"
            cc: gcc-9
            cxx: g++-9
          - name: "Build Compatibility: Clang-6 (Ubuntu 18.04)"
            cc: clang-6.0
            cxx: clang++-6.0
          - name: "Build Compatibility: Clang-8 (Ubuntu 18.04)"
            cc: clang-8
            cxx: clang++-8
    # Define the steps to run the build job
    env:
      CC: ${{ matrix.config.cc }}
      CXX: ${{ matrix.config.cxx }}
      CCACHE_COMPRESS: "true"
      CCACHE_COMPRESSLEVEL: "6"
      CCACHE_MAXSIZE: "400M"
      CCACHE_LOGFILE: ccache_log
      CCACHE_DIR: /__w/OpenFPGA/.ccache
    steps:
      - name: Checkout OpenFPGA repo
        uses: actions/checkout@v2
        with:
          submodules: true

      - name: Dump tool versions
        run: |
          cmake --version
          iverilog -V
          vvp -V

      - name: Prepare ccache timestamp
        id: ccache_cache_timestamp
        shell: cmake -P {0}
        run: |
          string(TIMESTAMP current_date "%Y-%m-%d-%H;%M;%S" UTC)
          message("::set-output name=timestamp::${current_date}")

      - name: Create CMake build environment
        # Some projects don't allow in-source building, so create a separate build directory
        # We'll use this as our working directory for all subsequent commands
        run: cmake -E make_directory build

      - name: Setup ccache
        uses: actions/cache@v2
        with:
          path: |
            /__w/OpenFPGA/.ccache
          key: ${{ matrix.config.cc }}-ccache-${{ github.ref}}
          restore-keys: |
            ${{ matrix.config.cc }}-ccache-

      - name: Configure CMake
        # Use a bash shell so we can use the same syntax for environment variable
        # access regardless of the host operating system
        shell: bash
        working-directory: build
        # Note the current convention is to use the -S and -B options here to specify source
        # and build directories, but this is only available with CMake 3.13 and higher.
        # The CMake binaries on the Github Actions machines are (as of this writing) 3.12
        #
        run: |
          ccache -p
          ccache -z
          cmake .. -DCMAKE_BUILD_TYPE=$BUILD_TYPE

      - name: Build
        working-directory: build
        shell: bash
        # Execute the build.  You can specify a specific target with "--target <NAME>"
        run: |
          cmake --build . --config $BUILD_TYPE

      # Check the cache size and see if it is over the limit
      - name: Check ccache size
        run: ccache -s
      - name: Upload artifact
        uses: actions/upload-artifact@v2
        if: ${{ matrix.config.cc == 'gcc-8'}}
        with:
          name: openfpga
          path: |
            abc/abc
            abc/libabc.a
            ace2/ace
            ace2/libace.a
            openfpga/libopenfpga.a
            openfpga/openfpga
            vpr/libvpr.a
            vpr/vpr
            yosys/share/
            yosys/yosys
            yosys/yosys-abc
            yosys/yosys-config
            yosys/yosys-filterlib
            yosys/yosys-smtbmc
            openfpga_flow
            openfpga.sh
  docker_distribution:
    name: Build docker image for distribution
    if: ${{ github.ref == 'refs/heads/master' || fromJSON(needs.change_detect.outputs.force_upload) }}
    runs-on: ubuntu-latest
    needs: linux_build
    steps:
      - name: Checkout OpenFPGA repo
        uses: actions/checkout@v2
      - name: Download a built artifacts
        uses: actions/download-artifact@v2
        with:
          name: openfpga
      - name: Update dockerignore to add openfpga_flow
        run: |
          cat .dockerignore
      - name: Set up QEMU
        uses: docker/setup-qemu-action@v1
      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v1
      - name: Login to GitHub Container Registry
        uses: docker/login-action@v1
        with:
          registry: ghcr.io
          username: ${{ github.repository_owner }}
          password: ${{ secrets.CR_PAT }}
      - name: Build and push master image
        uses: docker/build-push-action@v2
        with:
          context: .
          file: ./docker/Dockerfile.master
          push: true
          tags: ghcr.io/lnis-uofu/openfpga-master:latest
  artifact_regression_tests:
    name: Regression tests on code changes
    runs-on: ubuntu-18.04
    container: ghcr.io/lnis-uofu/openfpga-env
    needs: linux_build
    strategy:
      fail-fast: false
      matrix:
        config:
          - name: basic_reg_test
          - name: fpga_verilog_reg_test
          - name: fpga_bitstream_reg_test
          - name: fpga_sdc_reg_test
          - name: fpga_spice_reg_test
    steps:
      - name: Checkout OpenFPGA repo
        uses: actions/checkout@v2
      - name: Download a built artifacts
        uses: actions/download-artifact@v2
        with:
          name: openfpga
      - name: chmod
        run: |
          chmod +x abc/abc
          chmod +x ace2/ace
          chmod +x openfpga/openfpga
          chmod +x vpr/vpr
          chmod +x yosys/yosys
          chmod +x yosys/yosys-abc
          chmod +x yosys/yosys-config
          chmod +x yosys/yosys-filterlib
          chmod +x yosys/yosys-smtbmc
      - name: ${{matrix.config.name}}_GCC-8_(Ubuntu 18.04)
        shell: bash
        run: source openfpga.sh && source .github/workflows/${{matrix.config.name}}.sh
      - name: Upload artifact
        uses: actions/upload-artifact@v2
        if: ${{ failure() }}
        with:
          name: failed_${{matrix.config.name}}_regression_log
          retention-days: 1
          path: |
            openfpga_flow/**/*.log
  docker_regression_tests:
    needs: change_detect
    if: ${{ !fromJSON(needs.change_detect.outputs.source_modified) }}
    name: Regression tests against master artifacts
    runs-on: ubuntu-18.04
    container: ghcr.io/lnis-uofu/openfpga-master:latest
    strategy:
      fail-fast: false
      matrix:
        config:
          - name: basic_reg_test
          - name: fpga_verilog_reg_test
          - name: fpga_bitstream_reg_test
          - name: fpga_sdc_reg_test
          - name: fpga_spice_reg_test
    steps:
      - name: Checkout OpenFPGA repo
        uses: actions/checkout@v2
        with:
          submodules: true
      - name: ${{matrix.config.name}}_GCC-8_(Ubuntu 18.04)
        shell: bash
        run: |
          bash .github/workflows/install_dependencies_run.sh
          ${PYTHON_EXEC} -m pip install -r requirements.txt
          rsync -am --exclude='openfpga_flow/**' /opt/openfpga/. .
          source openfpga.sh && source .github/workflows/${{matrix.config.name}}.sh
      - name: Upload artifact
        uses: actions/upload-artifact@v2
        if: ${{ failure() }}
        with:
          name: failed_${{matrix.config.name}}_regression_log
          retention-days: 1
          path: openfpga_flow/**/*.log