action.yml

name: Setup Node/PNPM Environment
description: Check out the repo, if necessary, set up node and pnpm using the versions defined in `package.json::engines`, and (optionally) install dependencies.
inputs:
  npm-token:
    description: Your npm token for installing private packages from npm (optional if you don't use private packages)
  skip-install:
    description: Skip installing dependencies (optional)
    default: false
  test-file:
    description: A file whose presence indicates that the repo is checked out (optional - defaults to `package.json`)
    default: package.json
runs:
  using: composite
  steps:
    - name: Pre-Setup
      shell: bash
      run: |
        CHECKED_OUT="$([ -e ${{ inputs.test-file || 'package.json' }} ] && echo true || echo false)"
        echo "CHECKED_OUT=$CHECKED_OUT"
        echo "CHECKED_OUT=$CHECKED_OUT" >> $GITHUB_ENV
        SCRIPTS_PATH="$GITHUB_ACTION_PATH/../../scripts"
        echo "SCRIPTS_PATH=$SCRIPTS_PATH"
        echo "SCRIPTS_PATH=$SCRIPTS_PATH" >> $GITHUB_ENV

    - name: Checkout
      if: env.CHECKED_OUT == 'false'
      uses: actions/checkout@v4

    - name: Get Versions
      shell: bash
      run: |
        NODE_VERSION="$("$SCRIPTS_PATH/getEngineVersion.js" node)"
        echo "NODE_VERSION=$NODE_VERSION"
        echo "NODE_VERSION=$NODE_VERSION" >> $GITHUB_ENV

        PNPM_VERSION="$("$SCRIPTS_PATH/getEngineVersion.js" pnpm)"
        echo "PNPM_VERSION=$PNPM_VERSION"
        echo "PNPM_VERSION=$PNPM_VERSION" >> $GITHUB_ENV

    - name: Install pnpm
      shell: bash
      run: |
        npm i -g pnpm@${{ env.PNPM_VERSION }}
        echo "STORE_PATH=$(pnpm store path --silent)" >> $GITHUB_ENV

    - name: Install node
      uses: actions/setup-node@v4
      with:
        node-version: ${{ env.NODE_VERSION }}

    - name: Set up caching for pnpm
      uses: actions/cache@v3
      with:
        path: ${{ env.STORE_PATH }}
        key: ${{ runner.os }}-pnpm-store-${{ hashFiles('**/pnpm-lock.yaml') }}
        restore-keys: |
          ${{ runner.os }}-pnpm-store-

    - name: Install deps
      if: inputs.skip-install == 'false'
      shell: bash
      run: |
        if [ -n "${{ inputs.npm-token }}" ]; then
          echo "//registry.npmjs.org/:_authToken=${{ inputs.npm-token }}" >> ~/.npmrc
        fi
        pnpm --frozen-lockfile install