build.yml

name: Build submarine

on:
  push:
    branches: ["main"]
  pull_request:
    branches: ["main"]
  workflow_dispatch:

jobs:
  build:
    strategy:
      matrix:
        platform: ["x86_64", "arm64"]
    runs-on: ${{ matrix.platform == 'x86_64' && 'ubuntu-latest' || 'ARM64' }}
    container:
      image: registry.fedoraproject.org/fedora-minimal:39

    steps:
      - name: Install dependencies
        run: |
          dnf5 update -y
          dnf5 install -y git make gcc ccache flex bison elfutils-devel parted vboot-utils golang xz bc tar openssl-devel python3-pip uboot-tools
          pip3 install depthcharge-tools

      - uses: actions/checkout@v3
        with:
          submodules: true

      - name: Add Git safe directory
        run: |
          git config --global --add safe.directory $(pwd)

      - name: Setup enviroment variables
        run: |
          echo "PATH=$PATH:$HOME/go/bin" >> $GITHUB_ENV
          echo "GOCACHE=$(go env GOCACHE)" >> $GITHUB_ENV
          echo "CCACHE_DIR=$(pwd)/ccache" >> $GITHUB_ENV
          echo "UROOT_COMMIT=$(git rev-parse HEAD:u-root)" >> $GITHUB_ENV
          echo "KERNEL_COMMIT=$(git rev-parse HEAD:kernel)" >> $GITHUB_ENV

      - name: Setup Go cache
        uses: actions/cache@v3
        with:
          path: ${{ env.GOCACHE }}
          key: go-${{ matrix.platform }}-${{ env.UROOT_COMMIT }}
          restore-keys: |
            go-${{ matrix.platform }}-

      - name: Setup ccache cache
        uses: actions/cache@v3
        with:
          path: ${{ env.CCACHE_DIR }}
          key: ccache-${{ matrix.platform }}-${{ env.KERNEL_COMMIT }}-${{ hashFiles('kernel.config') }}
          restore-keys: |
            ccache-${{ matrix.platform }}-${{ env.KERNEL_COMMIT }}-
            ccache-${{ matrix.platform }}-

      - name: Install u-root
        run: go install github.com/u-root/u-root@$UROOT_COMMIT

      - name: Copy submarine kernel configuration
        run: cp configs/kernel.${{ matrix.platform == 'x86_64' && 'x86' || 'a64' }} kernel/.config

      - name: Build submarine
        run: make CC="ccache gcc" -j$(nproc) ${{ matrix.platform }}

      - name: Upload build artifacts
        uses: actions/upload-artifact@v3
        with:
          name: submarine-${{ matrix.platform }}
          path: build