action.yml

name: 'Run YARN install'
description: 'Workflow to execute yarn install script'

inputs:
  npmrc:
    description: 'NPMRC'
    required: true
  gh-ssh-private-key:
    description: 'SSH private key'
    required: false
  gh-ssh-known-hosts:
    description: 'SSH known hosts'
    required: false
  yarn-version:
    description: 'YARN version'
    required: true
  yarn-command-flags:
    description: run yarn command with additional flags
    required: false
    example: --immutable
    default: ""

runs:
  using: "composite"
  steps:
    - uses: actions/checkout@v3
      with:
        ref: ${{ github.head_ref }}
        ssh-key: ${{ inputs.gh-ssh-private-key }}
    - id: determine-node-npm-version
      run: |
        NODE_VERSION=$(jq -r '.engines.node' ./package.json)
        echo "node-version=${NODE_VERSION/null/14}" >> $GITHUB_OUTPUT
        NPM_VERSION=$(jq -r '.engines.npm' ./package.json)
        echo "npm-version=${NPM_VERSION/null/}" >> $GITHUB_OUTPUT
      shell: bash
    - name: Use Node.js
      uses: actions/setup-node@v3
      with:
        node-version: ${{ steps.determine-node-npm-version.outputs.node-version }}
        # cache: 'npm' # This throws errors when package-lock.json is not in repo - use manual setup below until package-lock.json will be used everywhere
    - uses: actions/cache@v3
      id: cache-node-modules
      with:
        path: |
          ~/.npm
          node_modules
          !node_modules/**/node_modules
          **/node_modules
          ~/.cache/Cypress
        key: ${{ runner.os }}-modules-${{ hashFiles('package.json') }}
        restore-keys: |
          ${{ runner.os }}-modules-${{ hashFiles('package.json') }}
          ${{ runner.os }}-modules-
    - name: Update NPM
      if: steps.determine-node-npm-version.outputs.npm-version != ''
      run: npm i npm@${{ steps.determine-node-npm-version.outputs.npm-version }} -g
      shell: bash
    - name: Install YARN
      run: npm i yarn@${{ inputs.yarn-version }} -g
      shell: bash

    # Configure credentials
    - name: Create NPMRC
      env:
        NPMRC: ${{ inputs.npmrc }}
      run: echo "$NPMRC" > .npmrc
      shell: bash
    - name: Install SSH Key
      if: inputs.gh-ssh-private-key != ''
      uses: shimataro/ssh-key-action@v2
      with:
        key: ${{ inputs.gh-ssh-private-key }} 
        known_hosts: ${{ inputs.gh-ssh-known-hosts }}
    - name: YARN Install
      if: steps.cache-node-modules.outputs.cache-hit != 'true'
      run: yarn install ${{ inputs.yarn-command-flags }}
      shell: bash
    - name: Print debug logs
      if: ${{ failure() }}
      run: cat ~/.npm/_logs/*
      shell: bash