GITHUB_TOKEN:
  description: 'A GitHub token to fetch the commit comparison and read file changes.'
  required: true
  example: ${{ github.token }}
INDIVIDUAL_FUNCTION_GLOB:
  description: 'A glob that matches individual function files.'
  required: true
  example: 'packages/functions/src/functions/*.ts'
FILE_CHANGES_FILTER_REGEX:
  description: 'An optional Regular Expression to filter your file changes.'
  required: false
  example: 'packages/functions/src/v2/functions'
INDIVIDUAL_FUNCTION_REGEX:
  description: 'An optional Regular Expression to match your individual function files.'
  required: false
  default: '(functions/(?!index\\.ts$).*\\.ts|(.*)\\.function\\.ts)$'
FULL_DEPLOYMENT_REGEX:
  description: 'An optional Regular Expression to match when a full deployment will be required.'
  required: false
  default: '((tsconfig|package).json|yarn.lock|src/(functions/)?index.ts)$'

FUNCTIONS_CHANGED:
  description: 'A colon-prefixed list of comma-separated function names to append to your "deploy --only functions"'

name: CD (Functions)
on:
  push:
    branches:
      - master
    paths:
      - '.github/workflows/functions.continuous-deployment.yml'
      - 'packages/functions/**'
      - 'firebase.json'
      - 'package.json'
      - '.firebaserc'
jobs:
  deploy:
    name: 'Install > Deploy'
    runs-on: ubuntu-latest
    strategy:
      fail-fast: true
      matrix:
        firebase_component: ['functions']
    steps:
      - name: Checkout the code
        uses: actions/checkout@v2
      - name: Setup node v10.x environment
        uses: actions/setup-node@v1
        with:
          node-version: '10.x'
      - name: Restore lerna-style dependencies
        uses: actions/cache@master
        id: lerna_cache
        with:
          path: |
            node_modules
            packages/functions/node_modules
          key: ${{ runner.os }}-${{ hashFiles('yarn.lock') }}-${{ hashFiles('packages/functions/yarn.lock') }}
      - name: Install root package dependencies
        run: yarn install
        if: steps.lerna_cache.outputs.cache-hit != 'true'
      - name: Install inner package dependencies
        run: yarn run bootstrap --scope ${{ matrix.firebase_component }}
        if: steps.lerna_cache.outputs.cache-hit != 'true'
      - name: Decide functions to update v2
        id: FUNCTIONS_CHANGED
        uses: UriellViana/firebase-functions-deployment-decision@v1.0.1
        with:
          GITHUB_TOKEN: ${{ github.token }}
          INDIVIDUAL_FUNCTION_GLOB: 'packages/functions/src/functions/*.ts'
      - name: Deploy ${{ matrix.firebase_component }} to Firebase
        run: yarn run deploy:ci --token=$FIREBASE_TOKEN --only ${{ matrix.firebase_component }}${{ steps.functions_changed.outputs.FUNCTIONS_CHANGED }}
        env:
          FIREBASE_TOKEN: ${{ secrets.FIREBASE_TOKEN }}