name: 'coverage-cop'
description: 'CI Check Coverage results of unit tests (using lcov)'
inputs:
  path:
    description: 'Path to lcov output file containing coverage data.'
    required: true
  branch-coverage-min:
    description: 'The minumum required branch coverage (in %) for success'
    required: false
    default: 100
  line-coverage-min:
    description: 'The minumum required line coverage (in %) for success'
    required: false
    default: 100
runs:
  using: "composite"
  steps: 
      - name: Print coverage data
        run: lcov --list --rc lcov_branch_coverage=1 ${{ inputs.path }}
        shell: bash
      - name: Install lcov (if not present)
        run: sudo apt-get install lcov
        shell: bash
      - name: Check coverage
        run: |
          LINE_COVERAGE=$(lcov --list ${{ inputs.path }} | tail -n 1 | cut -d '|' -f 2 | sed -n "s/\([^%]*\)%.*/\1/p")
          BRANCH_COVERAGE=$(lcov --rc lcov_branch_coverage=1 --list ${{ inputs.path }} | tail -n 1 | cut -d '|' -f 4 | sed -n "s/\([^%]*\)%.*/\1/p")
          RESULT=0
          echo "Required line coverage: ${{ inputs.line-coverage-min }}"
          echo "Line coverage:   $LINE_COVERAGE"
          if [[ $(echo "$LINE_COVERAGE < ${{ inputs.line-coverage-min }}" | bc) -ne 0 ]]; then
            echo "Line Coverage is too low."
            RESULT=1
          fi
          echo "Required branch coverage: ${{ inputs.branch-coverage-min }}"
          echo "Branch coverage: $BRANCH_COVERAGE"
          if [[ $(echo "$BRANCH_COVERAGE < ${{ inputs.branch-coverage-min }}" | bc) -ne 0 ]]; then
            echo "Branch Coverage is too low."
            RESULT=1
          fi
          exit $RESULT
        shell: bash