code_coverage.yml

# *******************************************************************************
# Copyright (c) 2026 Contributors to the Eclipse Foundation
#
# See the NOTICE file(s) distributed with this work for additional
# information regarding copyright ownership.
#
# This program and the accompanying materials are made available under the
# terms of the Apache License Version 2.0 which is available at
# https://www.apache.org/licenses/LICENSE-2.0
#
# SPDX-License-Identifier: Apache-2.0
# *******************************************************************************
#
# Reusable unified LLVM source-based coverage (C++ and Rust in one report),

name: Code coverage

on:
  workflow_call:
    inputs:
      coverage-threshold:
        description: 'Minimum effective line coverage percentage to enforce.'
        type: number
        default: 66
      artifact-name:
        description: 'Name of the uploaded coverage report artifact.'
        type: string
        default: coverage-html
      retention-days:
        description: 'Retention period for the uploaded coverage artifact.'
        type: number
        default: 10

jobs:
  coverage:
    name: Coverage
    runs-on: ubuntu-latest
    permissions:
      contents: read
    steps:
      - name: Checkout code
        uses: actions/checkout@v7

      - name: Setup Bazel with shared caching
        uses: eclipse-score/cicd-actions/setup-bazel-cache@212bbf86267e9381da9d2daf962d12f6feafbc90
        with:
          unique-cache-name: ${{ github.workflow }}-${{ github.job }}

      - name: Collect coverage
        run: |
          bazel coverage \
            --config=llvm_cov \
            --lockfile_mode=error \
            --build_tests_only \
            //score/...

      - name: Generate report and enforce threshold
        env:
          COVERAGE_THRESHOLD: ${{ inputs.coverage-threshold }}
        run: |
          bazel run @score_tooling//coverage:generate_coverage_html -- \
            --yaml quality/coverage/coverage_justifications.yaml \
            --archive-dir coverage_artifacts

      - name: Upload coverage report
        if: always()
        uses: actions/upload-artifact@v7
        with:
          name: ${{ inputs.artifact-name }}
          path: coverage_artifacts
          retention-days: ${{ inputs.retention-days }}