name: 'generate and publish GRPC docker caches'

on:
  workflow_dispatch:
  push:
    branches:
      - master

concurrency:
  group: grpc-cache-${{ github.head_ref || github.ref }}-${{ github.repository }}
  cancel-in-progress: true

jobs:
  generate_caches:
    strategy:
      matrix:
        include:
          - grpc-base-image: ubuntu:22.04
            runs-on: 'ubuntu-latest'
            platforms: 'linux/amd64,linux/arm64'
    runs-on: ${{matrix.runs-on}}
    steps:
      - name: Release space from worker
        if: matrix.runs-on == 'ubuntu-latest'
        run: |
          echo "Listing top largest packages"
          pkgs=$(dpkg-query -Wf '${Installed-Size}\t${Package}\t${Status}\n' | awk '$NF == "installed"{print $1 "\t" $2}' | sort -nr)
          head -n 30 <<< "${pkgs}"
          echo
          df -h
          echo
          sudo apt-get remove -y '^llvm-.*|^libllvm.*' || true
          sudo apt-get remove --auto-remove android-sdk-platform-tools || true
          sudo apt-get purge --auto-remove android-sdk-platform-tools || true
          sudo rm -rf /usr/local/lib/android
          sudo apt-get remove -y '^dotnet-.*|^aspnetcore-.*' || true
          sudo rm -rf /usr/share/dotnet
          sudo apt-get remove -y '^mono-.*' || true
          sudo apt-get remove -y '^ghc-.*' || true
          sudo apt-get remove -y '.*jdk.*|.*jre.*' || true
          sudo apt-get remove -y 'php.*' || true
          sudo apt-get remove -y hhvm powershell firefox monodoc-manual msbuild || true
          sudo apt-get remove -y '^google-.*' || true
          sudo apt-get remove -y azure-cli || true
          sudo apt-get remove -y '^mongo.*-.*|^postgresql-.*|^mysql-.*|^mssql-.*' || true
          sudo apt-get remove -y '^gfortran-.*' || true
          sudo apt-get remove -y microsoft-edge-stable || true
          sudo apt-get remove -y firefox || true
          sudo apt-get remove -y powershell || true
          sudo apt-get remove -y r-base-core || true
          sudo apt-get autoremove -y
          sudo apt-get clean
          echo
          echo "Listing top largest packages"
          pkgs=$(dpkg-query -Wf '${Installed-Size}\t${Package}\t${Status}\n' | awk '$NF == "installed"{print $1 "\t" $2}' | sort -nr)
          head -n 30 <<< "${pkgs}"
          echo
          sudo rm -rfv build || true
          sudo rm -rf /usr/share/dotnet || true
          sudo rm -rf /opt/ghc || true
          sudo rm -rf "/usr/local/share/boost" || true
          sudo rm -rf "$AGENT_TOOLSDIRECTORY" || true
          df -h

      - name: Set up QEMU
        uses: docker/setup-qemu-action@master
        with:
          platforms: all

      - name: Set up Docker Buildx
        id: buildx
        uses: docker/setup-buildx-action@master

      - name: Checkout
        uses: actions/checkout@v4

      - name: Cache GRPC
        uses: docker/build-push-action@v6
        with:
          builder: ${{ steps.buildx.outputs.name }}
          # The build-args MUST be an EXACT match between the image cache and other workflow steps that want to use that cache.
          # This means that even the MAKEFLAGS have to be an EXACT match.
          # If the build-args are not an EXACT match, it will result in a cache miss, which will require GRPC to be built from scratch.
          build-args: |
            GRPC_BASE_IMAGE=${{ matrix.grpc-base-image }}
            GRPC_MAKEFLAGS=--jobs=4 --output-sync=target
            GRPC_VERSION=v1.65.0
          context: .
          file: ./Dockerfile
          cache-to: type=gha,ignore-error=true
          cache-from: type=gha
          target: grpc
          platforms: ${{ matrix.platforms }}
          push: false
