alchemy/action.yml at main · cloudcompute/alchemy · GitHub

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name: Alchemy
description: Deploy Alchemy stages for pull requests and the main branch, and destroy pull request stages when closed.
author: alchemy-run
branding:
  icon: upload-cloud
  color: green
inputs:
  working-directory:
    description: Directory where the Alchemy project should be run.
    required: false
    default: .
  main-branch:
    description: Branch that deploys as the persistent prod stage and is never destroyed.
    required: false
    default: main
outputs:
  action:
    description: "The lifecycle action that ran: deploy, destroy, or skip."
    value: ${{ steps.resolve.outputs.action }}
  stage:
    description: The Alchemy stage name.
    value: ${{ steps.resolve.outputs.stage }}
  pull-request:
    description: The pull request number for PR stages.
    value: ${{ steps.resolve.outputs.pull-request }}
runs:
  using: composite
  steps:
    - id: resolve
      shell: bash
      env:
        MAIN_BRANCH: ${{ inputs.main-branch }}
        EVENT_NAME: ${{ github.event_name }}
        EVENT_ACTION: ${{ github.event.action }}
        REF_NAME: ${{ github.ref_name }}
        PR_NUMBER: ${{ github.event.number }}
      run: |
        if [ "$EVENT_NAME" = "pull_request" ]; then
          echo "stage=staging-$PR_NUMBER" >> "$GITHUB_OUTPUT"
          echo "pull-request=$PR_NUMBER" >> "$GITHUB_OUTPUT"

          if [ "$EVENT_ACTION" = "closed" ]; then
            echo "action=destroy" >> "$GITHUB_OUTPUT"
          else
            echo "action=deploy" >> "$GITHUB_OUTPUT"
          fi
          exit 0
        fi

        if [ "$REF_NAME" = "$MAIN_BRANCH" ]; then
          echo "stage=prod" >> "$GITHUB_OUTPUT"
          echo "pull-request=" >> "$GITHUB_OUTPUT"
          echo "action=deploy" >> "$GITHUB_OUTPUT"
          exit 0
        fi

        echo "stage=" >> "$GITHUB_OUTPUT"
        echo "pull-request=" >> "$GITHUB_OUTPUT"
        echo "action=skip" >> "$GITHUB_OUTPUT"

    - if: ${{ steps.resolve.outputs.action == 'deploy' }}
      shell: bash
      working-directory: ${{ inputs.working-directory }}
      env:
        STAGE: ${{ steps.resolve.outputs.stage }}
        PULL_REQUEST_VALUE: ${{ steps.resolve.outputs.pull-request }}
      run: |
        if [ -n "$PULL_REQUEST_VALUE" ]; then
          export PULL_REQUEST="$PULL_REQUEST_VALUE"
        fi
        alchemy deploy --stage "$STAGE" --yes

    - if: ${{ steps.resolve.outputs.action == 'destroy' }}
      shell: bash
      working-directory: ${{ inputs.working-directory }}
      env:
        STAGE: ${{ steps.resolve.outputs.stage }}
        PULL_REQUEST_VALUE: ${{ steps.resolve.outputs.pull-request }}
      run: |
        if [ -n "$PULL_REQUEST_VALUE" ]; then
          export PULL_REQUEST="$PULL_REQUEST_VALUE"
        fi
        alchemy destroy --stage "$STAGE" --yes