Class: Roast::Workflow::WorkflowExecutor

Inherits:
Object
  • Object
show all
Defined in:
lib/roast/workflow/workflow_executor.rb

Overview

Handles the execution of workflow steps, including orchestration and threading

Constant Summary collapse

DEFAULT_MODEL = 
"anthropic:claude-3-7-sonnet"

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(workflow, config_hash, context_path) ⇒ WorkflowExecutor

Returns a new instance of WorkflowExecutor.



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# File 'lib/roast/workflow/workflow_executor.rb', line 15

def initialize(workflow, config_hash, context_path)
  @workflow = workflow
  @config_hash = config_hash
  @context_path = context_path
end

Instance Attribute Details

#config_hash ⇒ Object (readonly)

Returns the value of attribute config_hash.



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# File 'lib/roast/workflow/workflow_executor.rb', line 13

def config_hash
  @config_hash
end

#context_path ⇒ Object (readonly)

Returns the value of attribute context_path.



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# File 'lib/roast/workflow/workflow_executor.rb', line 13

def context_path
  @context_path
end

#workflow ⇒ Object (readonly)

Returns the value of attribute workflow.



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# File 'lib/roast/workflow/workflow_executor.rb', line 13

def workflow
  @workflow
end

Instance Method Details

#execute_step(name) ⇒ Object 



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# File 'lib/roast/workflow/workflow_executor.rb', line 36

def execute_step(name)
  start_time = Time.now
  # For tests, make sure that we handle this gracefully
  resource_type = workflow.respond_to?(:resource) ? workflow.resource&.type : nil

  ActiveSupport::Notifications.instrument("roast.step.start", {
    step_name: name,
    resource_type: resource_type,
  })

  $stderr.puts "Executing: #{name} (Resource type: #{resource_type || "unknown"})"

  result = if name.starts_with?("$(")
    strip_and_execute(name).tap do |output|
      # Add the command and output to the transcript for reference in following steps
      workflow.transcript << { user: "I just executed the following command: ```\n#{name}\n```\n\nHere is the output:\n\n```\n#{output}\n```" }
      workflow.transcript << { assistant: "Noted, thank you." }
    end
  elsif name.include?("*") && (!workflow.respond_to?(:resource) || !workflow.resource)
    # Only use the glob method if we don't have a resource object yet
    # This is for backward compatibility
    glob(name)
  else
    step_object = find_and_load_step(name)
    step_result = step_object.call
    workflow.output[name] = step_result

    # Save state after each step if the workflow supports it
    save_state(name, step_result) if workflow.respond_to?(:session_name) && workflow.session_name

    step_result
  end

  execution_time = Time.now - start_time

  ActiveSupport::Notifications.instrument("roast.step.complete", {
    step_name: name,
    resource_type: resource_type,
    success: true,
    execution_time: execution_time,
    result_size: result.to_s.length,
  })

  result
rescue => e
  execution_time = Time.now - start_time

  ActiveSupport::Notifications.instrument("roast.step.error", {
    step_name: name,
    resource_type: resource_type,
    error: e.class.name,
    message: e.message,
    execution_time: execution_time,
  })
  raise
end

#execute_steps(steps) ⇒ Object 



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# File 'lib/roast/workflow/workflow_executor.rb', line 21

def execute_steps(steps)
  steps.each do |step|
    case step
    when Hash
      execute_hash_step(step)
    when Array
      execute_parallel_steps(step)
    when String
      execute_string_step(step)
    else
      raise "Unknown step type: #{step.inspect}"
    end
  end
end