Class: Tidewave::Tools::GetLogs

Inherits:
Tidewave::Tool show all
Defined in:
lib/tidewave/tools/get_logs.rb

Constant Summary collapse

DESCRIPTION = 
<<~DESCRIPTION.freeze
  Returns all log output, excluding logs that were caused by other tool calls.

  Use this tool to check for request logs or potentially logged errors.
DESCRIPTION

Instance Method Summary collapse

Methods inherited from Tidewave::Tool

descendants, inherited, #validate_and_call

Constructor Details

#initialize(options = {}) ⇒ GetLogs

Returns a new instance of GetLogs.



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# File 'lib/tidewave/tools/get_logs.rb', line 12

def initialize(options = {})
  @log_file = options[:log_file] ? Pathname.new(options[:log_file].to_s) : nil
end

Instance Method Details

#call(arguments) ⇒ Object 



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# File 'lib/tidewave/tools/get_logs.rb', line 43

def call(arguments)
  tail = arguments.fetch("tail")
  grep = arguments["grep"]
  return "Log file not found" unless @log_file&.exist?

  regex = Regexp.new(grep, Regexp::IGNORECASE) if grep
  matching_lines = []

  tail_lines(@log_file) do |line|
    if regex.nil? || line.match?(regex)
      matching_lines.unshift(line)
      break if matching_lines.size >= tail
    end
  end

  matching_lines.join
end

#definition ⇒ Object 



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# File 'lib/tidewave/tools/get_logs.rb', line 16

def definition
  return nil unless @log_file

  {
    "name" => "get_logs",
    "description" => DESCRIPTION,
    "inputSchema" => {
      "type" => "object",
      "properties" => {
        "tail" => {
          "type" => "integer",
          "not" => {
            "type" => "null"
          },
          "description" => "The number of log entries to return from the end of the log"
        },
        "grep" => {
          "type" => "string",
          "minLength" => 1,
          "description" => "Filter logs with the given regular expression (case insensitive). E.g. \"error\" when you want to capture errors in particular"
        }
      },
      "required" => [ "tail" ]
    }
  }
end