action.yml

name: Node.js Setup
description: Internal implementation; install Node.js and Bun. Use `./.github/actions/node` instead.
inputs:
  version:
    description: "Version identifier of the version to use."
    required: false
    default: 'latest'
runs:
  using: composite
  steps:
    # Resolve the version from the input alias. Exact patch versions come from
    # packages/dd-trace/test/plugins/versions/package.json, kept up-to-date by
    # Dependabot. Falls back to the bare major when the file is absent
    # (e.g. sparse checkouts that only include .github/).
    - name: Resolve Node.js version
      id: node-version
      env:
        VERSION: ${{ inputs.version }}
        LATEST_VERSION: ${{ env.LATEST_VERSION }}
      shell: bash
      run: |
        node_version() {
          local file="packages/dd-trace/test/plugins/versions/package.json"
          [ -f "$file" ] && node -p \
            "require('./${file}').dependencies['node-${1}'].replace('npm:node@','')" \
            || echo "${1}"
        }
        case "$VERSION" in
          eol)         version=16 ;;
          oldest)      version=$(node_version 18) ;;
          maintenance) version=$(node_version 20) ;;
          active)      version=$(node_version 24) ;;
          latest)      version=${LATEST_VERSION:-$(node_version 26)}
                      # When a custom/nightly version is requested via latest,
                      # force tracer init past the engines upper-bound guard.
                      [ -n "$LATEST_VERSION" ] && echo "DD_INJECT_FORCE=true" >> "$GITHUB_ENV" || true ;;
          *)           version=$VERSION ;;
        esac
        echo "version=$version" >> "$GITHUB_OUTPUT"

    - uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
      with:
        node-version: ${{ steps.node-version.outputs.version }}
        registry-url: ${{ inputs.registry-url || 'https://registry.npmjs.org' }}

    # Persist the resolved version so subsequent runs within this 60-minute window can reuse it.
    - name: Save resolved version
      if: steps.node-version-cache.outputs.cache-hit != 'true'
      shell: bash
      run: node -v | tr -d 'v' > "$RUNNER_TEMP/.node-resolved-version-${{ steps.node-version.outputs.version }}"
    - name: Check Node.js version for Bun
      id: bun-check
      shell: bash
      run: |
        MAJOR=$(node -e "process.stdout.write(String(parseInt(process.versions.node)))")
        echo "supported=$([ "$MAJOR" -ge 12 ] && echo true || echo false)" >> "$GITHUB_OUTPUT"
    - name: Install Bun
      if: steps.bun-check.outputs.supported == 'true'
      shell: bash
      run: npm install -g bun@1.3.1 --prefer-offline --no-audit --no-fund