reusable_coverage.yml

# Coverage build - gather artifacts from other builds and merge them into a single report
name: Coverage

on:
  workflow_call:
    inputs:
      trigger:
        description: Type of workflow trigger
        type: string
        required: false

permissions:
  contents: read

env:
  COVERAGE_DIR : "${{github.workspace}}/coverage"

jobs:
  Coverage:
    name: Coverage build
    runs-on: ubuntu-latest

    steps:
      - name: Checkout repository
        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
        with:
          fetch-depth: 0

      - name: Install dependencies
        run: |
          sudo apt-get update
          sudo apt-get install -y lcov

      - name: Download all coverage artifacts
        uses: actions/download-artifact@70fc10c6e5e1ce46ad2ea6f2b72d43f7d47b13c3 # v8.0.0
        with:
          pattern: exports-coverage-*
          path: coverage
          merge-multiple: true

      - name: Compute coverage
        working-directory: ${{env.COVERAGE_DIR}}
        id: coverage
        run: |
          echo "DIR: $(pwd)" && ls -al
          ../scripts/coverage/merge_coverage_files.sh exports-coverage total_coverage
          genhtml --no-function-coverage -o html_report total_coverage 2>&1 | tee output.txt
          mkdir coverage_report
          mv html_report ./coverage_report/
          tail -n2 output.txt >> $GITHUB_STEP_SUMMARY
          echo "COV_OUT=$(tail -n1 output.txt | grep -oP "lines[.]+: [\d.]+%" | cut -d ' ' -f2 | tr -d '%')" >> $GITHUB_OUTPUT

      - name: Upload coverage report
        uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7.0.0
        with:
          name: coverage_html_report
          path: coverage/coverage_report

      # Only update the badge on push (event is passed only for total coverage)
      - name: Update coverity badge
        if: ${{ success() && inputs.trigger == 'push' }}
        uses: Schneegans/dynamic-badges-action@e9a478b16159b4d31420099ba146cdc50f134483 # v1.7.0
        with:
          auth: ${{ secrets.BB_GIST_TOKEN }}
          gistID: 3f66c77d7035df39aa75dda8a2ac75b3
          filename: umf_coverage_badge.svg
          label: Coverage
          message: ${{ steps.coverage.outputs.COV_OUT }}%
          valColorRange: ${{ steps.coverage.outputs.COV_OUT }}
          minColorRange: 50 # <= this value = color: red
          maxColorRange: 90 # >= this value = color: green