action.yml

name: Acryl dbt Impact Analysis Action
description: Comments on PRs with the downstream impact of dbt changes.
inputs:
  datahub_gms_host:
    description: "DataHub GMS host."
    required: true
  datahub_gms_token:
    description: "DataHub GMS token."
    required: false
  datahub_frontend_url:
    description: "DataHub frontend URL."
    required: true

  dbt_adapter:
    description: "Set to bigquery, snowflake, redshift, or postgres."
    required: true
  dbt_profile_name:
    description: "Override for the dbt profile name. Defaults to the value in your dbt_project.yml."
  dbt_project_folder:
    description: "dbt project folder. Defaults to ."
    default: '.'
  
  debug_mode:
    description: "Set to true to enable debug mode."
    default: 'false'

  max_impacted_downstreams:
    description: "Maximum number of downstream generations."
    required: false
    default: 30

runs:
  using: "composite"
  steps:
    # TODO: Add better error checking:
    # - Validate that we have sufficient git history.
    # - Somehow ensure that this is running on a PR.
    # - Ensure that the adapter is one that we support.

    - name: Run impact analysis
      id: impact-analysis
      shell: bash
      run: ${{ github.action_path }}/src/impact_analysis.sh
      env:
        DBT_PROFILE_NAME: ${{ inputs.dbt_profile_name }}
        DBT_ADAPTER: ${{ inputs.dbt_adapter }}
        DBT_PROJECT_FOLDER: ${{ inputs.dbt_project_folder }}
        DATAHUB_GMS_HOST: ${{ inputs.datahub_gms_host }}
        DATAHUB_GMS_TOKEN: ${{ inputs.datahub_gms_token }}
        DATAHUB_FRONTEND_URL: ${{ inputs.datahub_frontend_url }}
        GITHUB_ACTION_PATH: ${{ github.action_path }}
        GITHUB_BASE_REF: ${{ github.base_ref }}
        DEBUG_MODE: ${{ inputs.debug_mode }}
        MAX_IMPACTED_DOWNSTREAMS: ${{ inputs.max_impacted_downstreams }}

    # Post a comment on the PR.
    - uses: marocchino/sticky-pull-request-comment@v2.5.0
      with:
        header: acryl-impact-analysis-${{ inputs.dbt_project_folder }}
        message: ${{ steps.impact-analysis.outputs.IMPACT_ANALYSIS_MD }}

branding:
  icon: 'activity'
  color: 'green'