name: Build deb package

on: [push]

jobs:
  build:

    runs-on: ubuntu-latest

    steps:
    - name: Checkout
      uses: actions/checkout@v1
    - name: Download apt-get dependencies
      run: |
        sudo env DEBIAN_FRONTEND=noninteractive apt-get -y purge unattended-upgrades
        sudo env DEBIAN_FRONTEND=noninteractive apt-get -y update
        sudo env DEBIAN_FRONTEND=noninteractive apt-get -y install fakeroot \
            libelf-dev libssl-dev flex bison coreutils build-essential \
            xz-utils devscripts initramfs-tools wget linux-headers-5.8.0-50-generic
    - name: Kernel config
      run: |
        cp /usr/src/linux-headers-5.8.0-50-generic/.config .
        scripts/config --disable DEBUG_INFO \
                       --set-str SYSTEM_TRUSTED_KEYS "" \
                       --module CONFIG_TCP_CONG_PRAGUE \
                       --module CONFIG_TCP_CONG_BBR \
                       --module CONFIG_TCP_CONG_BBR2 \
                       --module CONFIG_TCP_CONG_DCTCP \
                       --module CONFIG_NET_IPIP \
                       --module CONFIG_NET_CLS_U32 \
                       --module CONFIG_NET_SCH_DUALPI2 \
                       --module CONFIG_NET_SCH_PIE \
                       --module CONFIG_NET_SCH_FQ \
                       --module CONFIG_NET_SCH_FQ_CODEL \
                       --module CONFIG_NET_SCH_CODEL \
                       --module CONFIG_NET_SCH_RED \
                       --module CONFIG_NET_SCH_CAKE \
                       --module CONFIG_NET_SCH_HTB \
                       --module CONFIG_NET_SCH_NETEM \
                       --module CONFIG_NET_SCH_INGRESS \
                       --module CONFIG_NET_ACT_MIRRED \
                       --module CONFIG_IFB \
                       --module CONFIG_VETH \
                       --module CONFIG_BRIDGE \
                       --module CONFIG_INET_DIAG
        make olddefconfig
    - name: make-deb
      run: make -j$(nproc) bindeb-pkg \
            LOCALVERSION=-$(git rev-parse --short HEAD)-prague-${GITHUB_RUN_NUMBER} \
            KDEB_PKGVERSION=1
    - name: Move artifacts
      run: |
        mkdir -p debian_build
        mv -t debian_build ../linux-*.deb
    - name: Upload artifacts
      uses: actions/upload-artifact@v2
      with:
        name: prague-kernel
        path: debian_build

  release:
    name: Release build artifacts for the testing branch
    runs-on: ubuntu-latest
    needs: build
    if: github.ref == 'refs/heads/testing'
    steps:
    - name: Get artifact
      uses: actions/download-artifact@v2
      with:
        name: prague-kernel
    - name: Include iproute2 into the pre-release archive
      run: |
          wget https://github.com/L4STeam/iproute2/releases/download/master-build/iproute2-l4s.zip
          unzip iproute2-l4s
          mv -t . iproute2-l4s/*.deb
    - name: Zip artifacts
      run: zip -r l4s-testing.zip *.deb
    - name: Release tip build
      uses: eine/tip@master
      with:
        token: ${{ secrets.GITHUB_TOKEN }}
        tag: testing-build
        files: |
          l4s-testing.zip