name: CI

on: [push, pull_request]

jobs:
  build:

    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v1
    - name: install prerequisites
      run: sudo apt-get update && sudo apt-get install -y shellcheck jq sqlite3 iucode-tool
    - name: shellcheck
      run: shellcheck -s sh spectre-meltdown-checker.sh
    - name: check indentation
      run: |
        if [ $(grep -cPv "^\t*\S|^$" spectre-meltdown-checker.sh) != 0 ]; then
          echo "Badly indented lines found:"
          grep -nPv "^\t*\S|^$" spectre-meltdown-checker.sh
          exit 1
        else
          echo "Indentation seems correct."
        fi
    - name: check direct execution
      run: |
        expected=19
        nb=$(sudo ./spectre-meltdown-checker.sh --batch json | jq '.[]|.CVE' | wc -l)
        if [ "$nb" -ne "$expected" ]; then
          echo "Invalid number of CVEs reported: $nb instead of $expected"
          exit 1
        else
          echo "OK $nb CVEs reported"
        fi
    - name: check docker-compose run execution
      run: |
        expected=19
        docker-compose build
        nb=$(docker-compose run --rm spectre-meltdown-checker --batch json | jq '.[]|.CVE' | wc -l)
        if [ "$nb" -ne "$expected" ]; then
          echo "Invalid number of CVEs reported: $nb instead of $expected"
          exit 1
        else
          echo "OK $nb CVEs reported"
        fi
    - name: check docker run execution
      run: |
        expected=19
        docker build -t spectre-meltdown-checker .
        nb=$(docker run --rm --privileged -v /boot:/boot:ro -v /dev/cpu:/dev/cpu:ro -v /lib/modules:/lib/modules:ro spectre-meltdown-checker --batch json | jq '.[]|.CVE' | wc -l)
        if [ "$nb" -ne "$expected" ]; then
          echo "Invalid number of CVEs reported: $nb instead of $expected"
          exit 1
        else
          echo "OK $nb CVEs reported"
        fi
    - name: check fwdb update
      run: |
        nbtmp1=$(find /tmp 2>/dev/null | wc -l)
        ./spectre-meltdown-checker.sh --update-fwdb; ret=$?
        if [ "$ret" != 0 ]; then
          echo "Non-zero return value: $ret"
          exit 1
        fi
        nbtmp2=$(find /tmp 2>/dev/null | wc -l)
        if [ "$nbtmp1" != "$nbtmp2" ]; then
          echo "Left temporary files!"
          exit 1
        fi
        if ! [ -e ~/.mcedb ]; then
          echo "No .mcedb file found after updating fwdb"
          exit 1
        fi