action.yml

name: "Atmos Affected Stacks Trigger Spacelift"
description: "A GitHub action to trigger the corresponding Spacelift Stack from `atmos describe affected`"
author: hello@cloudposse.com
branding:
  icon: "file"
  color: "white"
inputs:
  atmos-config-path:
    default: .
    description: A path to the folder where atmos.yaml is located
    required: false
  atmos-version:
    default: latest
    description: The version of atmos to install if install-atmos is true
    required: false
  default-branch:
    default: ${{ github.event.repository.default_branch }}
    description: The default branch to use for the base ref.
    required: false
  deploy:
    default: 'false'
    description: A flag to indicate if a deployment should be triggered. If false, a preview will be triggered.
  github-token:
    description: A GitHub token for running the spacelift-io/setup-spacectl action
    required: true
  head-ref:
    description: The head ref to checkout. If not provided, the head default branch is used.
    required: false
  install-atmos:
    default: 'true'
    description: Whether to install atmos
    required: false
  install-jq:
    default: 'false'
    description: Whether to install jq
    required: false
  install-spacectl:
    default: 'true'
    description: Whether to install spacectl
    required: false
  install-terraform:
    default: 'true'
    description: Whether to install terraform
    required: false
  jq-force:
    default: 'true'
    description: Whether to force the installation of jq
    required: false
  jq-version:
    default: '1.6'
    description: The version of jq to install if install-jq is true
    required: false
  spacectl-version:
    default: latest
    description: The version of spacectl to install if install-spacectl is true
    required: false
  spacelift-api-key-id:
    description: The SPACELIFT_API_KEY_ID
    required: false
  spacelift-api-key-secret:
    description: The SPACELIFT_API_KEY_SECRET
    required: false
  spacelift-endpoint:
    description: The Spacelift endpoint. For example, https://unicorn.app.spacelift.io
    required: false
  terraform-version:
    default: latest
    description: The version of terraform to install if install-terraform is true
    required: false
  trigger-method:
    default: 'comment'
    description: The method to use to trigger the Spacelift stack. Valid values are `comment` and `spacectl`
    required: false

runs:
  using: "composite"
  steps:
    - name: Checkout code
      uses: actions/checkout@v4

    - name: Atmos Affected Stacks
      id: affected-stacks
      uses: cloudposse/github-action-atmos-affected-stacks@v1
      with:
        default-branch: ${{inputs.default-branch}}
        head-ref: ${{inputs.head-ref}}
        install-atmos: ${{inputs.install-atmos}}
        atmos-version: ${{inputs.atmos-version}}
        atmos-config-path: ${{inputs.atmos-config-path}}
        atmos-include-spacelift-admin-stacks: "true"
        install-terraform: ${{inputs.install-terraform}}
        terraform-version: ${{inputs.terraform-version}}
        install-jq: ${{inputs.install-jq}}
        jq-version: ${{inputs.jq-version}}
        jq-force: ${{inputs.jq-force}}

    - name: Setup Spacectl
      if: ${{ steps.affected-stacks.outputs.has-affected-stacks == 'true' && inputs.install-spacectl == 'true' && inputs.trigger-method == 'spacectl' }}
      uses: spacelift-io/setup-spacectl@v1.0.0
      env:
        GITHUB_TOKEN: ${{inputs.github-token}}
      with:
        version: ${{inputs.spacectl-version}}

    - name: Trigger Spacelift Stacks with Spacectl
      if: ${{ steps.affected-stacks.outputs.has-affected-stacks == 'true' && inputs.trigger-method == 'spacectl' }}
      shell: bash
      env:
        SPACELIFT_API_KEY_ENDPOINT: ${{inputs.spacelift-endpoint}}
        SPACELIFT_API_KEY_ID: ${{ inputs.spacelift-api-key-id }}
        SPACELIFT_API_KEY_SECRET: ${{ inputs.spacelift-api-key-secret }}
        TRIGGERING_SHA: ${{ github.event.pull_request.head.sha || github.sha}}
      run: |
        spacectl_deploy="false"
        if [ "${{inputs.deploy}}" = "true" ]; then
          spacectl_deploy="true"
        fi
        printf "%s\n" '${{ steps.affected-stacks.outputs.affected }}' >affected-stacks.json
        ${GITHUB_ACTION_PATH}/scripts/spacelift-trigger-affected-stacks.sh $spacectl_deploy

    - name: Create PR Comment Body with Affected Stacks
      if: ${{ steps.affected-stacks.outputs.has-affected-stacks == 'true' && inputs.trigger-method == 'comment' }}
      id: create-pr-comment-body
      shell: bash
      run: |
        spacectl_deploy="false"
        if [ "${{inputs.deploy}}" = "true" ]; then
          spacectl_deploy="true"
        fi
        printf "%s\n" '${{ steps.affected-stacks.outputs.affected }}' >affected-stacks.json
        ${GITHUB_ACTION_PATH}/scripts/spacelift-generate-pr-comment-body.sh $spacectl_deploy
        # Check if comment body is empty (when all affected stacks have spacelift workspace disabled)
        if [ -s comment-body.txt ]; then
          echo "affected-stacks-enabled=true" >> $GITHUB_OUTPUT
        else
          echo "affected-stacks-enabled=false" >> $GITHUB_OUTPUT
        fi

    - name: Create PR Comment with Affected Stacks
      uses: marocchino/sticky-pull-request-comment@331f8f5b4215f0445d3c07b4967662a32a2d3e31 # v2.9.0
      if: ${{ steps.affected-stacks.outputs.has-affected-stacks == 'true' && inputs.trigger-method == 'comment' && fromJSON(steps.create-pr-comment-body.outputs.affected-stacks-enabled) }}
      with:
        header: atmos-affected-stacks
        recreate: true
        path: comment-body.txt
      env:
        GITHUB_TOKEN: ${{inputs.github-token}}