.github/workflows/test_coverage.yml

#/
# @license Apache-2.0
#
# Copyright (c) 2021 The Stdlib Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#    http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#/

# Workflow name:
name: test_coverage

# Workflow triggers:
on:
  # Run workflow upon completion of `test` workflow run:
  workflow_run:
    workflows: ["test"]
    types: [completed]

  # Allow workflow to be manually run:
  workflow_dispatch:

# Workflow jobs:
jobs:

  # Define job to run test coverage...
  coverage:

    # Display name:
    name: 'Calculate Test Coverage'

    # Define the type of virtual host machine on which to run the job:
    runs-on: ubuntu-latest

    # Define environment variables:
    env:
      SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }}

    # Define the sequence of job steps...
    steps:

      # Checkout the repository:
      - name: 'Checkout repository'
        # Pin action to full length commit SHA
        uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # v4.1.0

      # Install Node.js:
      - name: 'Install Node.js'
        # Pin action to full length commit SHA
        uses: actions/setup-node@b39b52d1213e96004bfcb1c61a8a6fa8ab84f3e8 # v4.0.1
        with:
          node-version: 20
        timeout-minutes: 5

      # Install dependencies:
      - name: 'Install production and development dependencies'
        run: |
          npm install || npm install || npm install
        timeout-minutes: 15

      # Build native add-on if present:
      - name: 'Build native add-on (if present)'
        run: |
          if [ -f "binding.gyp" ]; then
            npm install node-gyp --no-save && ./node_modules/.bin/node-gyp rebuild
          fi

      # Calculate coverage:
      - name: 'Calculate test coverage'
        run: |
          npm run test-cov || npm run test-cov || npm run test-cov
        timeout-minutes: 15

      # Upload coverage report to Codecov:
      - name: 'Upload coverage to Codecov'
        id: upload
        # Pin action to full length commit SHA
        uses: codecov/codecov-action@84508663e988701840491b86de86b666e8a86bed # v4.3.0
        with:
          directory: reports/coverage
          flags: unittests
          fail_ci_if_error: true
        env:
          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}

      # Extract coverage value:
      - name: 'Extract coverage value and assign to output'
        id: extract-coverage
        run: |
          coverage=`cat reports/coverage/lcov-report/index.html | grep "fraction" | grep -oP '\d+/\d+' | printf %s "$(cat)" | jq -R -s -c 'split("\n")'`
          echo "coverage=$coverage" >> $GITHUB_OUTPUT

          # Format coverage as Markdown table row:
          table=`echo $coverage | sed -e 's/,/|/g; s/"/ /g; s/\[/|/; s/\]/|/'`
          echo "table=$table" >> $GITHUB_OUTPUT

      # Print coverage report to GitHub Actions log:
      - name: 'Print coverage report to GitHub Actions log'
        run: |
          echo "## Coverage Report" >> $GITHUB_STEP_SUMMARY
          echo "" >> $GITHUB_STEP_SUMMARY
          echo "| Statements | Branches | Functions | Lines | " >> $GITHUB_STEP_SUMMARY
          echo "| ---------- | -------- | --------- | ----- | " >> $GITHUB_STEP_SUMMARY
          echo "${{ steps.extract-coverage.outputs.table }}" >> $GITHUB_STEP_SUMMARY
          echo "" >> $GITHUB_STEP_SUMMARY

      # Send Slack notification if job fails:
      - name: 'Send status to Slack channel in case of failure'
        # Pin action to full length commit SHA
        uses: 8398a7/action-slack@28ba43ae48961b90635b50953d216767a6bea486 # v3.16.2
        with:
          status: ${{ job.status }}
          channel: '#npm-ci'
        if: failure()

      # Send data to events server:
      - name: 'Post data'
        # Pin action to full length commit SHA
        uses: distributhor/workflow-webhook@48a40b380ce4593b6a6676528cd005986ae56629 # v3.0.3
        env:
          webhook_url: ${{ secrets.STDLIB_COVERAGE_URL }}
          webhook_secret: ${{ secrets.STDLIB_WEBHOOK_SECRET }}
          data: '{ "coverage": ${{ steps.extract-coverage.outputs.coverage }}, "run_id": "${{ github.run_id }}" }'
        if: ${{ false }}