Class: RailsConsoleAi::Executor

Inherits:
Object
  • Object
show all
Defined in:
lib/rails_console_ai/executor.rb

Constant Summary collapse

CODE_REGEX = 
/```ruby\s*\n(.*?)```/m
ANY_CODE_FENCE_REGEX =

Matches any fenced code block (“‘anything … “`)

/```\w*\s*\n.*?```/m

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(binding_context, channel: nil) ⇒ Executor

Returns a new instance of Executor.



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# File 'lib/rails_console_ai/executor.rb', line 50

def initialize(binding_context, channel: nil)
  @binding_context = binding_context
  @channel = channel
  @omitted_outputs = {}
  @omitted_counter = 0
  @output_store = {}
  @output_counter = 0
  @active_skill_bypass_methods = Set.new
end

Instance Attribute Details

#binding_context ⇒ Object (readonly)

Returns the value of attribute binding_context.



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# File 'lib/rails_console_ai/executor.rb', line 47

def binding_context
  @binding_context
end

#last_error ⇒ Object (readonly)

Returns the value of attribute last_error.



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# File 'lib/rails_console_ai/executor.rb', line 47

def last_error
  @last_error
end

#last_safety_error ⇒ Object (readonly)

Returns the value of attribute last_safety_error.



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# File 'lib/rails_console_ai/executor.rb', line 47

def last_safety_error
  @last_safety_error
end

#last_safety_exception ⇒ Object (readonly)

Returns the value of attribute last_safety_exception.



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# File 'lib/rails_console_ai/executor.rb', line 47

def last_safety_exception
  @last_safety_exception
end

#on_prompt ⇒ Object

Returns the value of attribute on_prompt.



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# File 'lib/rails_console_ai/executor.rb', line 48

def on_prompt
  @on_prompt
end

Instance Method Details

#activate_skill_bypasses(methods) ⇒ Object 



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# File 'lib/rails_console_ai/executor.rb', line 327

def activate_skill_bypasses(methods)
  guards = RailsConsoleAi.configuration.safety_guards
  Array(methods).each do |spec|
    @active_skill_bypass_methods << spec
    guards.install_bypass_method!(spec)
  end
end

#confirm_and_execute(code) ⇒ Object 



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# File 'lib/rails_console_ai/executor.rb', line 209

def confirm_and_execute(code)
  return nil if code.nil? || code.strip.empty?

  @last_cancelled = false
  @last_answer = nil
  prompt = execute_prompt

  if @channel
    answer = @channel.confirm(prompt)
  else
    $stdout.print colorize(prompt, :yellow)
    @on_prompt&.call
    answer = $stdin.gets.to_s.strip.downcase
    echo_stdin(answer)
  end
  @last_answer = answer

  loop do
    case answer
    when 'a', 'auto'
      RailsConsoleAi.configuration.auto_execute = true
      if @channel
        @channel.display_status("Auto-execute: ON")
      else
        $stdout.puts colorize("Auto-execute: ON", :cyan)
      end
      result = execute(code)
      if @last_safety_error
        return nil unless danger_allowed?
        return offer_danger_retry(code)
      end
      return result
    when 'y', 'yes'
      result = execute(code)
      if @last_safety_error
        return nil unless danger_allowed?
        return offer_danger_retry(code)
      end
      return result
    when 'd', 'danger'
      unless danger_allowed?
        display_error("Safety guards cannot be disabled in this channel.")
        return nil
      end
      if @channel
        @channel.display_error("Executing with safety guards disabled.")
      else
        $stdout.puts colorize("Executing with safety guards disabled.", :red)
      end
      return execute_unsafe(code)
    when 'n', 'no', ''
      $stdout.puts colorize("Cancelled.", :yellow)
      @last_cancelled = true
      return nil
    else
      if @channel
        answer = @channel.confirm(prompt)
      else
        $stdout.print colorize(prompt, :yellow)
        @on_prompt&.call
        answer = $stdin.gets.to_s.strip.downcase
        echo_stdin(answer)
      end
      @last_answer = answer
    end
  end
end

#display_code_block(code) ⇒ Object 



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# File 'lib/rails_console_ai/executor.rb', line 84

def display_code_block(code)
  if @channel
    @channel.display_code(code)
  else
    $stdout.puts
    $stdout.puts colorize("# Generated code:", :yellow)
    $stdout.puts highlight_code(code)
    $stdout.puts
  end
end

#display_response(response) ⇒ Object 



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# File 'lib/rails_console_ai/executor.rb', line 68

def display_response(response)
  # Code execution now happens via the execute_code tool, not code-fence extraction.
  # Just display the full response text as-is.
  text = response.to_s.strip
  return '' if text.empty?

  $stdout.puts
  if @channel
    @channel.display(text)
  else
    $stdout.puts colorize(text, :cyan)
  end

  '' # No code to extract — the LLM uses execute_code tool instead
end

#execute(code, display: true) ⇒ Object 



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# File 'lib/rails_console_ai/executor.rb', line 95

def execute(code, display: true)
  return nil if code.nil? || code.strip.empty?

  @last_error = nil
  @last_safety_error = false
  @last_safety_exception = nil
  captured_output = StringIO.new
  old_stdout = $stdout
  # Three capture strategies:
  # 1. Slack mode (PrefixedIO active): thread-local capture to avoid cross-thread pollution
  # 2. Console mode (channel present): capture-only, channel.display_result_output shows it after
  # 3. No channel (tests/one-shot): TeeIO so output appears live AND is captured
  use_thread_local = defined?(RailsConsoleAi::PrefixedIO) && $stdout.is_a?(RailsConsoleAi::PrefixedIO)
  if use_thread_local
    Thread.current[:capture_io] = captured_output
  elsif @channel
    $stdout = captured_output
  else
    $stdout = TeeIO.new(old_stdout, captured_output)
  end

  RailsConsoleAi::SafetyError.clear!

  result = with_safety_guards do
    binding_context.eval(code, "(rails_console_ai)", 1)
  end

  restore_stdout(use_thread_local, old_stdout)

  # Check if a SafetyError was raised but swallowed by a rescue inside the eval'd code
  if (swallowed = RailsConsoleAi::SafetyError.last_raised)
    RailsConsoleAi::SafetyError.clear!
    @last_error = "SafetyError: #{swallowed.message}"
    @last_safety_error = true
    @last_safety_exception = swallowed
    display_error("Blocked: #{swallowed.message}")
    @last_output = captured_output&.string
    return nil
  end

  # Send captured puts output through channel before the return value
  if display && @channel && !captured_output.string.empty?
    @channel.display_result_output(captured_output.string)
  end

  display_result(result) if display

  @last_output = captured_output.string
  result
rescue Interrupt
  restore_stdout(use_thread_local, old_stdout)
  @last_output = captured_output&.string
  raise
rescue RailsConsoleAi::SafetyError => e
  restore_stdout(use_thread_local, old_stdout)
  RailsConsoleAi::SafetyError.clear!
  @last_error = "SafetyError: #{e.message}"
  @last_safety_error = true
  @last_safety_exception = e
  display_error("Blocked: #{e.message}")
  @last_output = captured_output&.string
  nil
rescue SyntaxError => e
  restore_stdout(use_thread_local, old_stdout)
  @last_error = "SyntaxError: #{e.message}"
  log_execution_error(@last_error)
  @last_output = nil
  nil
rescue => e
  restore_stdout(use_thread_local, old_stdout)
  # Check if a SafetyError is wrapped (e.g. ActiveRecord::StatementInvalid wrapping our error)
  if safety_error?(e)
    safety_exc = extract_safety_exception(e)
    safety_msg = safety_exc ? safety_exc.message : e.message
    @last_error = "SafetyError: #{safety_msg}"
    @last_safety_error = true
    @last_safety_exception = safety_exc
    display_error("Blocked: #{safety_msg}")
    @last_output = captured_output&.string
    return nil
  end
  @last_error = "#{e.class}: #{e.message}"
  backtrace = e.backtrace.first(3).map { |line| "  #{line}" }.join("\n")
  log_execution_error("Error: #{@last_error}\n#{backtrace}")
  @last_output = captured_output&.string
  nil
end

#execute_unsafe(code) ⇒ Object 



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# File 'lib/rails_console_ai/executor.rb', line 335

def execute_unsafe(code)
  guards = RailsConsoleAi.configuration.safety_guards
  guards.disable!
  execute(code)
ensure
  guards.enable!
end

#expand_output(id) ⇒ Object 



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# File 'lib/rails_console_ai/executor.rb', line 187

def expand_output(id)
  @omitted_outputs[id]
end

#extract_code(response) ⇒ Object 



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# File 'lib/rails_console_ai/executor.rb', line 60

def extract_code(response)
  match = response.match(CODE_REGEX)
  match ? match[1].strip : ''
end

#last_answer ⇒ Object 



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# File 'lib/rails_console_ai/executor.rb', line 201

def last_answer
  @last_answer
end

#last_cancelled? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rails_console_ai/executor.rb', line 205

def last_cancelled?
  @last_cancelled
end

#last_output ⇒ Object 



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# File 'lib/rails_console_ai/executor.rb', line 183

def last_output
  @last_output
end

#offer_danger_retry(code) ⇒ Object 



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# File 'lib/rails_console_ai/executor.rb', line 277

def offer_danger_retry(code)
  return nil unless danger_allowed?

  exc = @last_safety_exception
  blocked_key = exc&.blocked_key
  guard = exc&.guard

  if blocked_key && guard
    allow_desc = allow_description(guard, blocked_key)
    $stdout.puts colorize("  [d] re-run with all safe mode disabled", :yellow)
    $stdout.puts colorize("  [a] allow #{allow_desc} for this session", :yellow)
    $stdout.puts colorize("  [N] cancel", :yellow)
    prompt_text = "Choice: "
  else
    prompt_text = "Re-run with safe mode disabled? [y/N] "
  end

  if @channel
    answer = @channel.confirm(prompt_text)
  else
    $stdout.print colorize(prompt_text, :yellow)
    answer = $stdin.gets.to_s.strip.downcase
    echo_stdin(answer)
  end

  case answer
  when 'a', 'allow'
    if blocked_key && guard
      RailsConsoleAi.configuration.safety_guards.allow(guard, blocked_key)
      allow_desc = allow_description(guard, blocked_key)
      $stdout.puts colorize("Allowed #{allow_desc} for this session.", :green)
      return execute(code)
    else
      if @channel
        answer = @channel.confirm("Nothing to allow — re-run with safe mode disabled instead? [y/N] ")
      else
        $stdout.puts colorize("Nothing to allow — re-run with safe mode disabled instead? [y/N]", :yellow)
        answer = $stdin.gets.to_s.strip.downcase
        echo_stdin(answer)
      end
    end
  when 'd', 'danger', 'y', 'yes'
    $stdout.puts colorize("Executing with safety guards disabled.", :red)
    return execute_unsafe(code)
  end

  $stdout.puts colorize("Cancelled.", :yellow)
  nil
end

#recall_output(id) ⇒ Object 



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# File 'lib/rails_console_ai/executor.rb', line 197

def recall_output(id)
  @output_store[id]
end

#store_output(content) ⇒ Object 



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# File 'lib/rails_console_ai/executor.rb', line 191

def store_output(content)
  @output_counter += 1
  @output_store[@output_counter] = content
  @output_counter
end