<commit_before>module Chainsaw
  class Filter
    attr_reader :line_count

    # Initialize a Filter instance. We read the logfile here and
    # attempt to detect what type of logfile it is.
    #
    # logfile - the String path of the logfile to be filtered
    # range  - the "time" range to filter through (Time or Range)
    # options - an OpenStruct representing the options
    #
    # Returns the Filter instance
    def initialize(logfile, range, options = OpenStruct.new)
      @logfile    = logfile
      @range      = range
      @options    = options
      @log        = File.open(@logfile)
      @line_count = 0

      @log.rewind

      self
    end

    # Start iterating through the log lines and filtering them accordingly.
    # bin/chainsaw production.log 1 hour ago  2.18s user 0.05s system 98% cpu 2.254 total
    def start
      @ofilter = @options.filter

      @log.each do |line|
        if !@detected && @format = Detector.detect(line)
          @detected = true
          @log.rewind
        elsif @format.nil?
          next
        end

        match = line.match(@format.pattern)

        if match
          timestamp = match[1]
          time      = Filter.parse_timestamp(timestamp, @format.time_format)
        else
          timestamp = time = nil
        end

        # a match was found if we are filtering additional text, check that too<commit_msg>cleanup a few things before the push<commit_after>module Chainsaw
  class Filter
    attr_reader :line_count

    # Initialize a Filter instance. We read the logfile here and
    # attempt to detect what type of logfile it is.
    #
    # logfile - the String path of the logfile to be filtered
    # range  - the "time" range to filter through (Time or Range)
    # options - an OpenStruct representing the options
    #
    # Returns the Filter instance
    def initialize(logfile, range, options = OpenStruct.new)
      @logfile    = logfile
      @range      = range
      @options    = options
      @log        = File.open(@logfile)
      @line_count = 0

      self
    end

    # Start iterating through the log lines and filtering them accordingly.
    def start
      @ofilter = @options.filter

      File.open(@logfile).each do |line|
        if !@detected && @format = Detector.detect(line)
          @detected = true
          @log.rewind
        elsif @format.nil?
          next
        end

        match = line.match(@format.pattern)

        if match
          timestamp = match[1]
          time      = Filter.parse_timestamp(timestamp, @format.time_format)
        else
          timestamp = time = nil
        end

        # a match was found if we are filtering additional text, check that too
{'fraction_non_alphanumeric': 0.06881243063263041, 'fraction_numerical': 0.006289308176100629, 'mean_word_length': 2.0144927536231885, 'pattern_counts': {'":': 0, '<': 3, '<?xml version=': 0, '>': 3, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
{'dir': 'git-commits-cleaned', 'id': '1166921', 'n_tokens_mistral': 762, 'n_tokens_neox': 730, 'n_words': 273}