app/services/create_deployment_service.rb


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require_relative 'base_service'

class CreateDeploymentService < BaseService
  def execute(deployable = nil)
    environment = find_or_create_environment

    deployment = project.deployments.create(
      environment: environment,
      ref: params[:ref],
      tag: params[:tag],
      sha: params[:sha],
      user: current_user,
      deployable: deployable
    )

    deployment.update_merge_request_metrics

    deployment
  end

  private

  def find_or_create_environment
    project.environments.find_or_create_by(name: expanded_name) do |environment|
      environment.external_url = expanded_url
    end
  end

  def expanded_name
    ExpandVariables.expand(name, variables)
  end

  def expanded_url
    return unless url

    @expanded_url ||= ExpandVariables.expand(url, variables)
  end

  def name
    params[:environment]
  end

  def url
    options[:url]
  end

  def options
    params[:options] || {}
  end

  def variables
    params[:variables] || []
  end
end