name: Maintain runners

on:
  workflow_dispatch:

jobs:

  Prepare:

    runs-on: [self-hosted, Linux, images]
    if: ${{ github.repository_owner == 'armbian' }}
    outputs:
      matrix: ${{steps.list_dirs.outputs.matrix}}
    steps:

      - name: Checkout repository
        uses: actions/checkout@v2
        with:
          fetch-depth: 0
          repository: armbian/build
          path: build
          ref: nightly
          clean: false

      - name: Clean upload folder

        run: |
          cd build
          while sudo mountpoint output/images -q
          do
              sudo umount output/images || true
              echo "Trying to unmount ..."
              sleep 10
          done
          sudo apt-get -y -qq update
          sudo apt-get -y -qq upgrade
          sudo mkdir -p /root/.ssh/
          sudo rm -rf output/images/*
          sudo mkdir -p output/images

      - name: Prepare matrix
        id: list_dirs
        run:
          echo ::set-output name=matrix::$(for x in $(seq -w 01 50); do echo $x; done|jq -cnR '[inputs | select(length>0)]' | jq)

  Maint:
  
    needs: [ Prepare ]
    runs-on: [self-hosted, Linux, images]
    if: ${{ github.repository_owner == 'armbian' }}
    timeout-minutes: 480
    strategy:
      fail-fast: false
      matrix: 
        node: ${{fromJson(needs.Prepare.outputs.matrix)}}
    steps:
      - name: Fix permissions
        run: |
          # make sure no temporally dirs are mounted from previous runs
          while :
          do
              sudo pkill compile.sh || true
              sudo pkill arm-binfmt-P || true
              sudo pkill aarch64-binfmt-P || true
              sudo pkill pixz || true
              sudo mountpoint -q build/output/images && sudo fusermount -u build/output/images || true
              [[ "$(df | grep "/.tmp" | wc -l)" -eq 0 && $(sudo mountpoint -q build/output/images; echo $?) -eq 1 ]] && sudo rm -rf build/.tmp && break
              echo "Mounted temp directories. Trying to unmount."
              df | grep ".tmp" | awk '{print $6}' | xargs sudo umount 2>/dev/null || true
              sleep 10
          done
          [[ -d build/.git ]] && sudo chown -R $USER:$USER build/.git || true
          [[ -d build/output/images ]] && sudo rm -rf build/output/images/* || true