name: test size

on: [push, pull_request, workflow_dispatch]
# paths:
# - "*"
# - "!README.md" <-- don't rebuild on doc change

jobs:
  build:
    runs-on: ubuntu-20.04
    container: ardupilot/ardupilot-dev-chibios:latest
    strategy:
      fail-fast: false  # don't cancel if a job from the matrix fails
      matrix:
        toolchain: [
            base,  # GCC
        ]
        config: [
            Durandal,
            MatekF405,
            Pixhawk1-1M
        ]
    steps:
      - uses: actions/checkout@v2
        with:
          ref: 'master'
          path: 'master'
          submodules: 'recursive'
      # Put ccache into github cache for faster build
      - name: Prepare ccache timestamp
        id: ccache_cache_timestamp
        run: |
          NOW=$(date -u +"%F-%T")
          echo "::set-output name=timestamp::${NOW}"
      - name: ccache cache files
        uses: actions/cache@v2
        with:
          path: ~/.ccache
          key: ${{github.workflow}}-ccache-${{ matrix.toolchain }}-${{steps.ccache_cache_timestamp.outputs.timestamp}}
          restore-keys: ${{github.workflow}}-ccache-${{ matrix.toolchain }}-  # restore ccache from either previous build on this branch or on master
      - name: setup ccache
        run: |
          mkdir -p ~/.ccache
          echo "base_dir = ${GITHUB_WORKSPACE}" > ~/.ccache/ccache.conf
          echo "compression = true" >> ~/.ccache/ccache.conf
          echo "compression_level = 6" >> ~/.ccache/ccache.conf
          echo "max_size = 400M" >> ~/.ccache/ccache.conf
          ccache -s
          ccache -z

      - name: Build master ${{matrix.config}} ${{ matrix.toolchain }}
        env:
          CI_BUILD_TARGET: ${{matrix.config}}
        shell: bash
        run: |
          PATH="/github/home/.local/bin:$PATH"
          cd master
          ./waf configure --board ${{matrix.config}}
          ./waf
          mkdir -p $GITHUB_WORKSPACE/master_bin
          cp -r build/${{matrix.config}}/bin/* $GITHUB_WORKSPACE/master_bin/

      - uses: actions/checkout@v2
        with:
          fetch-depth: 0
          path: 'pr'

      - name: Build PR rebased ${{matrix.config}} ${{ matrix.toolchain }}
        env:
          CI_BUILD_TARGET: ${{matrix.config}}
        shell: bash
        run: |
          PATH="/github/home/.local/bin:$PATH"
          cd pr/
          git config user.email "ardupilot-ci@ardupilot.org"
          git config user.name "ArduPilot CI"
          git remote add ardupilot https://github.com/ArduPilot/ardupilot.git
          git fetch --no-tags --prune --progress ardupilot master
          git rebase ardupilot/master
          git submodule update --init --recursive --depth=1
          ./waf configure --board ${{matrix.config}}
          ./waf
          mkdir $GITHUB_WORKSPACE/pr_bin
          cp -r build/${{matrix.config}}/bin/* $GITHUB_WORKSPACE/pr_bin/

      - name: Full size compare with Master
        shell: bash
        run: |
          cd pr/
          python3 -m pip install -U tabulate
          Tools/scripts/pretty_diff_size.py -m $GITHUB_WORKSPACE/master_bin -s $GITHUB_WORKSPACE/pr_bin