name: Lint and Validate Terraform Code

on:
  pull_request:
    branches:
      - master
jobs:
  build:
    runs-on: ubuntu-latest
    env:
      AWS_DEFAULT_REGION: us-east-1
    steps:
    - uses: actions/checkout@v1
    - name: Install Terraform and Terragrunt
      run: |
        brew tap rocketinsights/tgenv
        brew install tfenv tgenv
        tfenv install
        tgenv install

    - name: Get Versions
      run: |
        terragrunt --version
        terraform --version

    - name: Terraform Init
      run: find . -type f -name "*.tf" -exec dirname {} \;|sort -u | while read m; do (cd "$m" && terraform init -input=false -backend=false) || exit 1; done

    - name: Validate Terraform configs
      run: find . -name ".terraform" -prune -o -type f -name "*.tf" -exec dirname {} \;|sort -u | while read m; do (cd "$m" && terraform validate && echo "√ $m") || exit 1 ; done

    - name: Check Terraform config formatting 
      run: terraform fmt -write=false -recursive