Class: EditTool

Inherits:
LlmGateway::Tool show all
Defined in:
lib/llm_gateway/agents/tools/edit_tool.rb

Defined Under Namespace

Classes: EditError

Instance Method Summary collapse

Methods inherited from LlmGateway::Tool

cache, definition, description, #initialize, input_schema, name, tool_name, #tool_result

Constructor Details

This class inherits a constructor from LlmGateway::Tool

Instance Method Details

#execute(input, tool_use_id:) ⇒ Object 



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# File 'lib/llm_gateway/agents/tools/edit_tool.rb', line 34

def execute(input, tool_use_id:)
  path = input[:path]
  edits = prepare_edits(input[:edits])

  return tool_result("Edit tool input is invalid. edits must contain at least one replacement.", tool_use_id: tool_use_id) if !edits.is_a?(Array) || edits.empty?

  absolute_path = ToolUtils.resolve_to_cwd(path)

  ToolUtils.with_file_mutation_lock(absolute_path) do
    begin
      File.open(absolute_path, File::RDWR) { }
    rescue SystemCallError => e
      return tool_result("Could not edit file: #{path}. Error code: #{e.class.name.split("::").last}.", tool_use_id: tool_use_id)
    end

    raw_content = File.binread(absolute_path)

    bom = raw_content.start_with?("\xEF\xBB\xBF".b) ? "\xEF\xBB\xBF".b : "".b
    content_without_bom = bom.empty? ? raw_content : raw_content.byteslice(3..)
    content_utf8 = content_without_bom.force_encoding("UTF-8")

    original_ending = detect_line_ending(content_utf8)
    normalized_content = normalize_to_lf(content_utf8)
    base_content, new_content = apply_edits_to_normalized_content(normalized_content, edits, path)

    restored = restore_line_endings(new_content, original_ending)
    final_bytes = bom + restored.encode("UTF-8").b

    File.binwrite(absolute_path, final_bytes)
    tool_result("Successfully replaced #{edits.length} block(s) in #{path}.", tool_use_id: tool_use_id)
  end
rescue EditError => e
  tool_result(e.message, tool_use_id: tool_use_id)
rescue StandardError => e
  tool_result("Error editing file: #{e.message}", tool_use_id: tool_use_id)
end