name: CI

on:
  push:
  pull_request:

jobs:
  crosstool:
    runs-on: ${{ matrix.host }}
    strategy:
      matrix:
        host: [ "ubuntu-latest", "macos-10.15" ]
    steps:
      - name: "clone"
        uses: actions/checkout@v2
      - name: "prereq Linux"
        if: ${{ runner.os == 'Linux' }}
        run: |
          sudo apt-get install -y gperf help2man libtool-bin
      - name: "prereq macOS"
        if: ${{ runner.os == 'macOS' }}
        run: |
          brew install autoconf automake bash binutils gawk gnu-sed \
               gnu-tar help2man make ncurses
      - name: "build ct-ng"
        run: |
          if [ "$RUNNER_OS" == "macOS" ]; then
            export PATH="$PATH:/usr/local/opt/binutils/bin"
            export CPPFLAGS="-I/usr/local/opt/ncurses/include -I/usr/local/opt/gettext/include"
            export LDFLAGS="-L/usr/local/opt/ncurses/lib -L/usr/local/opt/gettext/lib"
          fi
          ./bootstrap
          ./configure --prefix=$PWD/.local/
          make
          make install
          tar -cf ct-ng.tar .local/
      - name: "upload ct-ng"
        uses: actions/upload-artifact@v2
        with:
          name: crosstool.${{ matrix.host }}
          path: ct-ng.tar
      - name: "upload config.log"
        uses: actions/upload-artifact@v2
        with:
          name: config.log.${{ matrix.host }}
          path: config.log
        if: ${{ always() }}

  tarballs:
    needs: crosstool
    runs-on: ${{ matrix.host }}
    strategy:
      matrix:
        host: [ "ubuntu-latest" ]
    steps:
      - name: "download ct-ng"
        uses: actions/download-artifact@v2
        with:
          name: crosstool.${{ matrix.host }}
      - name: "extract ct-ng"
        run: |
          tar -xf ct-ng.tar
      - name: "prereq Linux"
        if: ${{ runner.os == 'Linux' }}
        run: |
          sudo apt-get install -y gperf help2man libtool-bin
          echo "$GITHUB_WORKSPACE/.local/bin" >> $GITHUB_PATH
      - name: "ct-ng source"
        run: |
          mkdir -p src
          for sample in aarch64-unknown-linux-gnu arm-picolibc-eabi \
                arm-unknown-linux-musleabi armv6-nommu-linux-uclibcgnueabi; do \
                ct-ng $sample; \
                sed -i -e '/CT_LOG_PROGRESS_BAR/s/y$/n/' .config; \
                sed -i -e '/CT_LOCAL_TARBALLS_DIR/s/HOME/CT_TOP_DIR/' .config; \
                sed -i -e '/CT_PREFIX_DIR/s/HOME/CT_TOP_DIR/' .config; \
                sed -i -e 's/^.*CT_COMP_TOOLS_BISON.*$/CT_COMP_TOOLS_BISON=y/' .config; \
                sed -i -e 's/^.*CT_COMP_TOOLS_M4.*$/CT_COMP_TOOLS_M4=y/' .config; \
                sed -i -e 's/^.*CT_COMP_TOOLS_MAKE.*$/CT_COMP_TOOLS_MAKE=y/' .config; \
                ct-ng olddefconfig; \
                ct-ng source; \
          done
          tar -cvf src.tar src
      - name: "upload sources"
        uses: actions/upload-artifact@v2
        with:
          name: src.tar
          path: src.tar

  toolchains:
    needs: [ crosstool, tarballs ]
    runs-on: ${{ matrix.host }}
    strategy:
      matrix:
        host: [ "ubuntu-latest", "macos-10.15" ]
        sample:
          [
            "aarch64-unknown-linux-gnu",
            "arc-multilib-elf32",
            "arc-multilib-linux-gnu",
            "arc-multilib-linux-uclibc",
            "arm-picolibc-eabi",
            "arm-unknown-linux-gnueabi",
            "arm-unknown-linux-musleabi",
            "armv6-nommu-linux-uclibcgnueabi",
            "avr",
            "i686-w64-mingw32",
            "mips-unknown-elf",
            "mips-unknown-linux-gnu",
            "mips64-unknown-linux-gnu",
            "powerpc-unknown-linux-gnu",
            "powerpc64-unknown-linux-gnu",
            "riscv32-unknown-elf",
            "riscv64-unknown-elf",
            "s390-unknown-linux-gnu",
            "sh-unknown-elf",
            "sparc-unknown-linux-gnu",
            "x86_64-multilib-linux-uclibc",
            "x86_64-unknown-linux-gnu",
            "x86_64-w64-mingw32",
            "xtensa-fsf-linux-uclibc",
          ]
        exclude:
          # Exclude both glibc & uClibc ARC Linux toolchains as
          # there's no known use of ARC Linux toolchains on Mac,
          # and anyway glibc fails to build for ARC700,
          # see https://github.com/crosstool-ng/crosstool-ng/pull/1456#issuecomment-779150246
          - { host: "macos-10.15", sample: "arc-multilib-linux-gnu" }
          - { host: "macos-10.15", sample: "arc-multilib-linux-uclibc" }

          # Exclude mips*-*-linux-gnu because of <byteswap.h> usage in
          # elf-entry.c for linux kernel headers.  <byteswap.h> is a GNU
          # extension and doesn't exist on MacOS X
          - { host: "macos-10.15", sample: "mips-unknown-linux-gnu" }
          - { host: "macos-10.15", sample: "mips64-unknown-linux-gnu" }
    steps:
      - name: Create case sensitive workspace volume for macOS
        if: ${{ runner.os == 'macOS' }}
        run: |
          cd ..
          rmdir crosstool-ng
          hdiutil create ${HOME}/Workspace.sparseimage -volname crosstool-ng -type SPARSE -size 20g -fs HFSX
          hdiutil mount ${HOME}/Workspace.sparseimage -mountroot /Users/runner/work/crosstool-ng
          cd crosstool-ng
      - name: "download ct-ng"
        uses: actions/download-artifact@v2
        with:
          name: crosstool.${{ matrix.host }}
      - name: "extract ct-ng"
        run: |
          tar -xf ct-ng.tar
      - name: "download tarballs"
        uses: actions/download-artifact@v2
        with:
          name: src.tar
      - name: "extract tarballs"
        run: |
          tar -xvf src.tar
      - name: "prereq Linux"
        if: ${{ runner.os == 'Linux' }}
        run: |
          sudo apt-get install -y gperf help2man libtool-bin
          echo "$GITHUB_WORKSPACE/.local/bin" >> $GITHUB_PATH
      - name: "prereq macOS"
        if: ${{ runner.os == 'macOS' }}
        run: |
          brew install autoconf automake bash binutils gawk gnu-sed \
               gnu-tar help2man make ncurses pkg-config
          echo "$GITHUB_WORKSPACE/.local/bin" >> $GITHUB_PATH
      - name: "build ${{ matrix.sample }} for ${{ matrix.host }}"
        run: |
          mkdir -p src
          ct-ng ${{ matrix.sample }}
          sed -i -e '/CT_LOG_PROGRESS_BAR/s/y$/n/' .config
          sed -i -e '/CT_LOCAL_TARBALLS_DIR/s/HOME/CT_TOP_DIR/' .config
          sed -i -e '/CT_PREFIX_DIR/s/HOME/CT_TOP_DIR/' .config
          ct-ng build
      - name: "upload log"
        uses: actions/upload-artifact@v2
        with:
          name: "${{ matrix.sample }}.${{ matrix.host }}.log"
          path: |
            build.log
            .config
        if: ${{ always() }}